Top-Viewed Stories

• Justin (the bigger the better) by Giant Worshipper  [  ]  A young man starts growing, and growing. He finds he likes it a lot.  •Cock Growth •Huge Cock •Hyper Cock •Straight to Gay •Hyper Strength •Muscle Breast •Muscle Growth •Muscle Gut •Muscle/Strength •Muscle Worship •Man Scent •Increased Libido •Getting Taller •Giants •Size Increase •First Time/Virgin  Added Nov 2009 15 parts 99,090 words 404,646 views 4.4 stars (85 votes)

• Max’s wish by Bulge101  [  ]  Scrawny Max uses his wish-power to make himself worthy of the extremely hot bully he has a crush on, but his friend Bobby deserves his help, too, and soon lots of changes start happening at school and at home.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Size Increase •Infectious •M/M •M/M/M  Added Aug 2011 Updated Nov 2011 11 parts 24,647 words 297,149 views 4.6 stars (79 votes)
• Above average by Ziel  [  ]  Alan starts out as just your average college boy. Then a strange, magical artifact comes into his life, and he starts becoming bigger… almost remembering the ways things were, when his muscles and cock weren’t, with each orgasm, more and more above average. As the effects spread, Alan knows he must understand what’s happing to him and his friends—and also that he must be the biggest, most muscular, most hypercocked stud of all.  •Cock Growth •Ball Growth •Huge Cock •Hyper Cock •Hyper Cum •Public Orgasm •Hyper Muscle •Muscle Growth •Muscle/Strength •Public Nudity •Butt Growth •Retcon •M/M •M/M/M •M/M/M/...  Added Apr 2013 Updated Dec 2018 28 parts 130,435 words 263,594 views 4.6 stars (104 votes)
• Spice by Mr. X and Mad Dog  [  ]  In this epic story, the transformative powers of a certain substance are tested by a couple of very horny guys.  •Cock Growth •Huge Cock •Other Mental Changes •Hyper Muscle •Hyper Strength •Muscle Growth •Muscle Theft •Muscle/Strength •Muscle Worship •Man Scent •Foot Growth •Gradual Change •Transformation •Voice Deepening •Getting Taller •Size Increase •Getting Hairy •Age Difference •Incest •Father/Son •Supernatural •Gay Pride •Alcohol  Added Oct 2009 Updated Nov 2019 50 parts 221,027 words 216,290 views 4.3 stars (59 votes)
• All good things by Anon Amon  [  ]  After the discovery of an ancient artifact, life is changed forever for a group of college students who have bigger things to worry about than getting ready to start classes.  •Cock Growth •Cockfucking •Huge Balls •Huge Cock •Hyper Cock •Cum inflation •Hyper Cum •Nipple Emissions •Straight to Gay •Hyper Muscle •Hyper Strength •Immobility •Muscle Growth •Muscle/Strength •Giants •Size Increase •Incest •Brothers •Twins •Infectious •Complete •M/M •M/M/M  Added Feb 2017 Updated Oct 2022 111 parts 131,752 words 205,228 views 4.6 stars (144 votes)
• Medicine show by Fafhrd and Longbow9  [  ]    •Cock Growth •Ball Growth •Huge Cock •Hyper Cock •Self-suck •First Time/Virgin •Bisexual •Hetero Sex •Lycra/Spandex •Infectious •Series •M •M/F •M/F/F •M/M •M/M/F  Added Feb 2012 Updated Feb 2014 174 parts 250,271 words 205,105 views 4.5 stars (25 votes)

• Jason’s big problem by Joven  [  ]  Teen athlete Jason unwittingly becomes part of a shady experiment to produce progressively larger cocks and balls that generate way too much cum. His playful and curious friends get drawn in, and when his cranky brother is roped in as well, having massive equipment becomes even more difficult.  •Cock Growth •Huge Balls •Ball Growth •Huge Cock •Hyper Cock •Hyper Cum •Muscle Growth •Muscle/Strength •Getting Taller •Size Increase •Incest •Brothers •t/t •t/t/t  Added Oct 2013 Updated Nov 2017 49 parts 114,700 words 198,488 views 4.5 stars (76 votes)
• Puberty is a bitch by Lover Boy 2  [  ]    •Cock Growth •Huge Cock •Hyper Cock •Muscle Growth •Gradual Change •Size Increase  Added Sep 2009 11 parts 14,585 words 161,022 views 4.2 stars (26 votes)
• Mind and body by BRK  [  ]  Jack discovers that his knack for hypnosis is actually much more powerful than it should be. Naturally, he uses this to get the upper hand with his sexy jock brother, but that turns out to be a lot more complicated than he’d thought.  •Always Hard •Cock Growth •Huge Cock •Multicock •Straight to Gay •Muscle Growth •Muscle/Strength •Always Shirtless •Getting Taller •Size Increase •App •Suggestion •Incest •Brothers •Hypnosis •Mind Control •t/t •t/t/t •t/t/t...  Added Jun 2012 Updated Jul 2017 16 parts 66,227 words 151,830 views 4.7 stars (101 votes)
• My roommate (complete) by LenZelig  [  ]  Bill’s hot adventures with his irresistible sex-god of a roommate, Andy Wang, and the others drawn into his adventures, combined with the stories of Andy’s son and his friends. (This revised and updated compilation version includes both “My Roommate” and “My Roommate: The Next Generation.”)  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Age Difference •First Time/Virgin •Incest •Brothers •Father/Son •Bisexual •Hetero Sex •Dom/Sub •Witch/Warlock/Wizard •Gay Pride •Mind Control •Complete •M/F •M/M •M/M/F •M/M/M •M/M/M/... •M/t •t/t  Added Jul 2002 Updated Jun 2021 29 parts 222,742 words 149,039 views 4.5 stars (25 votes)
• Brother-in-law by Jock  [  ]  Ace, a Marine, meets and becomes enamored of his sister’s fiancé, Josh. A rare (for Metabods) tale with no alterations.  •Huge Cock •Muscle/Strength  Added May 2006 12,744 words 137,956 views 4.7 stars (96 votes)
• So much cum by Delinqual  [  ]  Cory has a condition that causes him to produce extremely abnormal amounts of semen. It’s not always fun, but it has led to some very memorable moments.  •Hyper Cum  Added May 2012 2,165 words 133,271 views 4.4 stars (20 votes)
• Bigger issues by muscl4life  [  ]  Thanks to Kyle, Sean discovered his serum works better than he expected… And now his freaking muscular lover each time is more intoxicated with his newly found POWER, and can such difference of muscular capacity make the couple apart?  •Always Hard •Cock Growth •Huge Cock •Hyper Cock •Multi-abs •Straight to Gay •Muscle Growth •Muscle/Strength •Muscle Worship •Size Increase •Series  Added Dec 2013 6 parts 46,984 words 133,144 views 4.0 stars (23 votes)
• Empire by LenZelig  [  ]  A massive consolidation of the entire “Bill’s Education” universe, incorporating the previously separately posted “The Surfer”, “The Rescue”, “Spring Break”, “Pickup Trouble”, and “School Days”, “Empire” is the wide-ranging tale of easy transformation and even easier sex across all boundaries—friends, family members, genders, even species—as a fortunate crop of humans stumble into a wider universe of size, muscle, double-digit-length cocks and much, much more and discover the true meaning of shared, radical, uninhibited pleasure.  •Cock Growth •Huge Cock •Self-suck •Straight to Gay •Muscle Growth •Muscle/Strength •Getting Taller •Size Increase •Age Difference •Bestiality •First Time/Virgin •Incest •Brothers •Father/Son •Twins •Bisexual •Hetero Sex •Nonconsensual change •Sex-Slave •Shared Body •Aliens •Space Travel •Witch/Warlock/Wizard •Thanksgiving •Mind Control •Complete •Series  Added Apr 2019 Updated May 2021 40 parts 365,561 words 129,775 views 3.7 stars (6 votes)
• Forced growth by hyperboi  [  ]  Tyler wakes up trapped in a room where everything seems geared toward forcing him to become bigger, stronger, and sexier.  •Cock Growth •Cock Pumping •Huge Cock •Hyper Cock •Other Mental Changes •Straight to Gay •Muscle Growth •Muscle/Strength •Forced Growth •Nonconsensual change •M  Added Oct 2013 5 parts 6,397 words 124,124 views 4.3 stars (51 votes)
• The dudes by BRK  [  ]  The guys at school are really susceptible to suggestion—so much so that if you tell them something’s true, it turns out that it actually is true.  •Always Hard •Cock Growth •Huge Balls •Huge Cock •Self-suck •Hyper Cum •Public Orgasm •Multi-abs •Straight to Gay •Muscle Growth •Muscle/Strength •Increased Libido •Getting Handsomer •Plausible Size Difference •Size Increase •Tongue Growth •Retcon •Suggestion •Brothers •Hyper Pheromones •t/t •t/t/t •t/t/t...  Added Mar 2010 Updated Mar 2016 7 parts 15,936 words 121,474 views 4.7 stars (46 votes)
• Baby brother by Shawn D. Stewart  [  ]  "Kev, did you see a glass here?” “Whoa, man, was that yours? Sorry… I was really thirsty…” “You drank it!?” Aaaaand off we go!  •Cock Growth •Muscle Growth •Muscle/Strength •Getting Taller •Incest •Brothers  Added Mar 2003 2,879 words 120,367 views 4.4 stars (36 votes)
• My son, the superstud by Max Mann  [  ]  Thom is shocked to hear that his son Rusty has enrolled in a muscle-growth transformation experiment—and it’s already too late to stop him.  •Cock Growth •Huge Cock •Straight to Gay •Muscle Growth •Muscle/Strength •Age Difference •Incest •Father/Son •M  Added Oct 2003 3,842 words 112,130 views 3.9 stars (32 votes)
• Changing Nick by BRK  [  ]  Nick’s computer starts offering him choices between one kind of transformation and another. He soon learns he’s been drawn into a strange conspiracy, even as the changes start to spread to friends, strangers, and secret allies.  •Always Hard •Cock Growth •Huge Cock •Nipcocks •Multi-abs •Multicock •Multihead •Lots of Legs •Multiarm •Multileg •Multilimb •Three Legs •Multipec •Multitorso •Replication •Stacking •Straight to Gay •Muscle Growth •Muscle/Strength •Always Shirtless •Increased Libido •Getting Handsomer •Getting Taller •Size Increase •Tongue Growth •App •Retcon •Nonconsensual change •Merging •Witch/Warlock/Wizard •Invisibility •M/M •M/M/M •M/M/M/...  Added May 2013 Updated Jul 2022 18 parts 69,664 words 110,251 views 4.7 stars (38 votes)
• Chuck, the size thief by spacevlad  [  ]  Chuck, a middling-sized construction worker who wishes he were bigger, finds a way to grow huge.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Cum •Getting Dumber •Other Mental Changes •Muscle Growth •Muscle Gut •Muscle Theft •Muscle/Strength •Belly Growth •Voice Deepening •Giants •Plausible Size Difference •Size Decrease •Size Increase •Getting Hairy •Getting Fatter •Inflation •Nanotech •Destruction/Violence •Nonconsensual change •Rape •Absorption •M/M  Added Jun 2017 Updated Dec 2017 16 parts 42,078 words 108,387 views 4.5 stars (27 votes)
• Magic cock by Pfieffer  [  ]  A ritual to increase cock size works a little too well.  •Cock Growth •Huge Cock •Hyper Cock  Added Apr 1997 3 parts 6,064 words 107,992 views 4.3 stars (11 votes)
• The brothers by FanTCMan  [  ]  Cory Callahan and his three sibs participate in a secret program, resulting in more muscles, body hair, cock size, and horniness.  •Always Hard •Cock Growth •Huge Cock •Addiction •Straight to Gay •Muscle Growth •Muscle/Strength •Gradual Change •Getting Hairy •Incest •Brothers  Added Mar 2003 8 parts 22,620 words 107,795 views 4.8 stars (93 votes)
• Muscle milk tit freaks by TitMorpher  [  ]  In the future, as soon as muscle tit bodybuilding competitions, certain fans start gravitating toward the ones leaking muscle milk from their nips—triggering a broader interest in both the fetish and the growth-inducing pec juicea.  •Nipple Emissions •Muscle Breast •Muscle Growth •Muscle/Strength •Muscle Worship •Stories with Images •Set in the Future •M/M  Added Sep 2011 Updated Jun 2012 9 parts 27,090 words 105,554 views 3.8 stars (8 votes)
• Huge changes: Book one by RdyRoger  [  ]  Todd’s love for his straight best friend turns them both into their fantasies of each other—with a little help from an old lady at a Halloween costume shop.  •Cock Growth •Huge Cock •Straight to Gay •Muscle Growth •Muscle/Strength •Size Increase •Halloween •Series •M/M  Added Apr 2012 Updated Dec 2017 5,887 words 105,510 views 3.9 stars (20 votes)
• Teen growth by Chamelion123  [  ]    •Muscle Growth •Muscle/Strength  Added Jul 2002 7,404 words 105,055 views 3.7 stars (23 votes)
• An unexpected inflation by UberPump  [  ]  A college athlete named Keith and his friends discover what it feels like to enlarge their cock and balls with the mysterious device Keith ordered off the dark web. When things go awry, however, their packages get huge. Keith and his friends go on a massive journey of cock growth, bloated balls, and near exploding junk as they inflate their man parts to their absolute limit.  •Cock Growth •Cock Pumping •Cockfucking •Huge Balls •Ball Growth •Huge Cock •Hyper Cock •Cum inflation •Hyper Cum •Public Orgasm •Addiction •Straight to Gay •Hyper Muscle •Immobility •Muscle Growth •Public Nudity •Increased Libido •Forced Growth •Size Increase •Inflation •App •Incest •Brothers •Bisexual •Nonconsensual change •M/M •M/M/F •M/M/M  Added Apr 2020 Updated Feb 2023 40 parts 94,860 words 104,938 views 4.9 stars (55 votes)
• Geno-type by Ziel  [  ]  While on a camping trip, Tyler makes a half-assed wish on a shooting star. Not only does he get his wish, but it begins to affect those around him as well. Maybe he should have been more specific? An ongoing saga of hyper growth and the weird social situations it results in.  •Cock Growth •Cockfucking •Huge Cock •Hyper Cock •Infectious •t/t •t/t/t  Added Dec 2012 Updated Feb 2016 34 parts 144,288 words 100,687 views 4.3 stars (26 votes)

• Morphed muscle tit freaks by TitMorpher  [  ]  Later in the 21st century, the bodybuilding world fragmented into separate interest groups. Traditional contests still took place, but they were less popular in the face of new contests that centered around special fetishes, such as bodybuilders with huge cocks or enormous muscle tits.  •Nipple Emissions •Muscle Breast •Muscle Growth •Muscle/Strength  Added Jan 2011 Updated Jan 2012 3 parts 7,939 words 96,792 views
• Graham by Giant Worshipper and westone tiny  [  ]    •Size Increase  Added Nov 2009 Updated Dec 2010 10 parts 55,178 words 94,952 views 4.6 stars (24 votes)
• Big changes by Ziel  [  ]  Troy’s rapidly growing hypercock is getting kind of embarrassing, especially as it’s caught the attention of a pair of obsessive and very uninhibited twins.  •Cock Growth •Huge Balls •Ball Growth •Hyper Cock •Hyper Cum •Incest •Twins •Dildos/Toys •Christmas •Easter •Gay Pride •Halloween •New Year's Eve •Valentine's Day •Stories with Images •M/M •M/M/M  Added Dec 2013 Updated Dec 2022 14 parts 74,028 words 94,648 views 4.6 stars (27 votes)
• Lumberjacked by Krisiar  [  ]  Trapped by a snowstorm at an underheated family cabin in northern Manitoba, Henry and Will stumble across a hidden sauna in the woods while out looking for wood. It turns out someone out there wants to help out guys like Henry and Will who could do with a little size improvement.  •Cock Growth •Huge Cock •Hyper Cock •Prehensile Cock •Self-suck •Nipple Emissions •Multi-abs •Addiction •Muscle Growth •Muscle/Strength •Getting Handsomer •Getting Hairy •M/M  Added Aug 2011 Updated Oct 2011 4 parts 12,081 words 93,705 views 4.6 stars (29 votes)
• More than expected by LennoxBear  [  ]  Intent on preventing his beefy bod from getting soft, Joe is increasingly obsessed with his gym workouts. Then he meets a kindred spirit who helps him take things to a whole new level.  •Cock Growth •Huge Balls •Huge Cock •Cum Milking •Nipple Emissions •Straight to Gay •Muscle Breast •Muscle Growth •Muscle/Strength •Getting Hairy •First Time/Virgin •Nonconsensual change •Infectious •M/M  Added Jul 2002 5 parts 20,375 words 93,372 views 4.3 stars (19 votes)
• The hulk pill by JayPat  [  ]  The only thing weirder than your buddy Boz offering you a “hulk pill” would be for it to actually work.  •Cock Growth •Huge Cock •Hyper Muscle •Hyper Strength •Muscle Growth •Muscle/Strength •Size Increase •Nanotech •Destruction/Violence •Infectious •Complete •t/t  Added Oct 2012 5 parts 29,485 words 91,134 views 4.7 stars (29 votes)

• Becoming the ultimate man by musclestory  [  ]  When a man’s ultimate dream becomes his ultimate reality.  •Cock Growth •Huge Cock •Hyper Cum •Muscle Growth •Muscle/Strength •Voice Deepening •Giants •Size Increase •Getting Hairy •t  Added Aug 2003 4,565 words 88,117 views 4.4 stars (21 votes)
• Hard body by Also Known As  [  ]  Uncannily attractive and hunky teenager John is sent to the latest in a string of health professionals over his unusual condition: he’s always horny, and it affects his body in a very unusual and highly provocative manner.  •Cock Growth •Huge Balls •Huge Cock •Prehensile Cock •Muscle Growth •Muscle/Strength •Muscle Worship •Transformation •Size Increase •Dom/Sub •M/M •M/M/M  Added Oct 2016 Updated Aug 2022 16 parts 82,987 words 86,475 views 4.5 stars (102 votes)
• 17 inches by Unknown  [  ]    •Huge Cock •First Time/Virgin •Incest •Brothers  Added Mar 2009 3,639 words 85,092 views 4.4 stars (22 votes)
• Supermen by Also Known As  [  ]  Todd agrees to be the first human subject for a muscle growth serum, little knowing how massive the effects would be, for himself and everyone else.  •Cock Growth •Hyper Cock •Multicock •Muscle Growth •Muscle/Strength •Muscle Worship •Getting Handsomer •First Time/Virgin •Hyper Pheromones •Flying •Series  Added Oct 2002 9 parts 76,817 words 84,972 views 4.1 stars (16 votes)
• Think bigger by MaxMorphs  [  ]  Mild-mannered Kyle gains an unexpected power over his hunky friends after they all enjoy a magic show during a fateful vacation in Vegas.  •Cock Growth •Huge Cock •Hyper Cum •Getting Dumber •Straight to Gay •Immobility •Muscle Growth •Muscle Gut •Muscle/Strength •Getting Taller •Size Increase •Suggestion •Dom/Sub •Hypnosis •Complete •Stories with Images •M/M  Added Jun 2022 Updated May 2023 24 parts 57,210 words 84,068 views 4.9 stars (111 votes)
• The salt by RdyRoger  [  ]  Trav gets his hands on some salts that cause all kinds of sexy growth and transformation. Using them on himself is great, but growing other people without their realizing it is even more fun.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Muscle Worship •Increased Libido •Gradual Change •Getting Taller •Size Increase •Tongue Growth •Incest •Brothers •Series  Added Jun 2010 9 parts 35,754 words 82,957 views 4.7 stars (19 votes)
• Bull’s strength by muscl4life  [  ]  On a quiet farm far from anywhere, an orphan named Joshua grows up so huge and strong that he’s bullied for being a freak. His aunt and uncle raise him with love and teach him to accept who he is, but Joshua yearns to be among men who don’t just accept his giant body, but love and admire his amazing size and power.  •Always Hard •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Multi-abs •Multicock •Muscle Growth •Muscle/Strength •Muscle Worship •Transformation •Getting Taller •Plausible Size Difference •Size Increase •Age Difference •Bestiality •Incest •Father/Son •Destruction/Violence •Infectious •Flying •M/M •M/M/M •M/M/M/...  Added Jul 2018 Updated Oct 2018 28 parts 88,398 words 82,605 views 4.8 stars (39 votes)
• Danny’s dick by Zot57  [  ]    •Cock Growth •Huge Cock •Hyper Cock  Added Feb 2010 10 parts 7,661 words 82,572 views 4.2 stars (27 votes)
• Alpha product series by Chet Boner  [  ]  19-year-old Trent accepts a free trial product series called “Alpha Product” in exchange for his feedback. He receives the first product very quickly, but doesn’t know how many people would be affected and grow as a result of this choice!  •Cock Growth •Huge Balls •Hyper Cum •Nipple Emissions •Muscle Growth •Muscle/Strength •Age Difference •Incest •Brothers •Father/Son •Stories with Images •M/M •M/M/M  Added May 2017 Updated May 2019 19 parts 23,227 words 81,799 views 4.4 stars (42 votes)
• True muscle god by mf81  [  ]  An encounter with a strange artifact from the ancient Aegean leads Richard to a divine encounter.  •Cock Growth •Huge Balls •Huge Cock •Muscle Growth •Muscle/Strength •First Time/Virgin  Added Mar 2006 Updated Feb 2011 3 parts 7,686 words 81,127 views 4.8 stars (37 votes)
• Ad man by FanTCMan  [  ]  Powerful ad exec Tucker needs the help of one of his reps, an amateur bodybuilder named Larry, to break into the sports and fitness market. Larry takes the initiative and offers to help a potential client test their new supplement, and the results aren't what Tucker or Larry expect.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Cum •Straight to Gay •Hyper Muscle •Muscle Growth •Muscle/Strength •Getting Hairy •Nonconsensual change •Infectious •M/M  Added Dec 2003 8,642 words 81,096 views 5.0 stars (52 votes)

• Basically a god by CurlyJin  [  ]  What do you do when the kid you bullied in high school becomes a god?  •Cock Growth •Huge Balls •Hyper Cock •Hyper Cum •Getting Taller •Giants •Size Increase •Bisexual •Hetero Sex •Lycra/Spandex •Space Travel •Superhero/Supervillain •Flying •X-Ray Vision •M/M  Added Jul 2016 Updated Jun 2019 9 parts 31,027 words 78,431 views 4.2 stars (24 votes)
• Oh man by BRK  [  ]  A simple website called your-body-like-that dot com lets you imagine how you’d look with a whole new body. Only it doesn’t stop at imagination.  •Cock Growth •Huge Cock •Self-suck •Multicock •Multiarm •Multilimb •Replication •Muscle Growth •Muscle/Strength •App •Retcon  Added Jul 2010 Updated Nov 2017 5 parts 13,273 words 77,453 views 4.6 stars (23 votes)
• Charles’s monster by Locky  [  ]  Jason saw Charles' monster in high school. Three years later, there's even more to see.  •Cock Growth •Huge Cock •Hyper Cock •Size Increase •M/M  Added Aug 2006 1,748 words 77,441 views 4.1 stars (32 votes)
• Sam and Bolt by MaxMorphs  [  ]  Sam’s father, Bolt, shares with his size-hungry son the secrets of becoming truly huge.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Nipcocks •Self-suck •Cum inflation •Hyper Cum •Nipple Emissions •Getting Taller •Size Increase •Getting Hairy •Age Difference •Incest •Father/Son •Infectious •M •M/M •M/M/M/...  Added Sep 2016 Updated Dec 2016 11 parts 48,242 words 76,788 views 3.9 stars (56 votes)
• Second puberty by JayPat  [  ]  Finding out you’re a product of genetic engineering and about to go through your second puberty is shocking enough, but the unforeseen repercussions with school, family, and friends are what really change everything.  •Cock Growth •Huge Cock •Hyper Strength •Muscle Growth •Muscle/Strength •Increased Libido •Size Increase •Bisexual •Destruction/Violence •Hyper Pheromones •Series  Added Sep 2012 15 parts 91,454 words 75,659 views 4.8 stars (33 votes)
• Big is better by XH4M  [  ]  Pete and Sam experience epic growth, unexpected adventures, and sweet romance.  •Huge Cock •Nipcocks •Muscle Growth •Muscle/Strength •First Time/Virgin •Demons •Witch/Warlock/Wizard •Hypnosis  Added Oct 2003 32 parts 111,493 words 72,859 views 4.1 stars (14 votes)
• Brad’s big change by FanTCMan  [  ]  Brad, secretly yearning for a muscle body, is nudged into action by a posting on a bulletin board.  •Muscle Growth •Muscle/Strength •Getting Handsomer •M/M  Added Dec 2002 5 parts 16,500 words 71,262 views 4.6 stars (28 votes)
• Bottom mega-alfa by Jerkoffcentral  [  ]  Lit prof Jonas has been lusting after the exceptionally muscular students on his prep school survival outing, but even more after the massive gym teacher Noah, who’s so alpha he has trouble controlling just how massive he is—especially when he’s aroused by an admirer’s obsessive lust.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Size Increase •Getting Hairy •Dom/Sub •Nonconsensual change •Werewolves •M/M  Added Nov 2014 Updated Dec 2017 8 parts 21,520 words 71,128 views 4.7 stars (56 votes)
• Mutation by BRK  [  ]  Everyone in Portia, Alaska has been grown thicker and stronger and made irresistibly beautiful, but none more than the teens in the high school. Geek genius Mr. Lewis tries to roll back the most extreme changes in Mr. Casey’s class as a test case, but the trial doesn’t go anywhere near as planned.  •Cock Growth •Huge Cock •Hyper Cock •Multicock •Four Legs •Multiarm •Multileg •Multilimb •Three Legs •Multipec •Replication •Stacking  Added Jun 2010 Updated Jul 2018 4 parts 9,583 words 70,644 views 4.9 stars (19 votes)

• Musclove, Texas by Max Mann  [  ]  Moving to Musclove, Texas with his sons to take up a new teaching position, Rick Long is startled to find a town full of huge, hung, and horny men, all of them eager to have the newcomers join them (in more ways than one).  •Cock Growth •Hyper Cock •Hyper Cum •Muscle Growth •Muscle/Strength •Age Difference •First Time/Virgin •Incest •Brothers •Father/Son •Twins •Restraints  Added Sep 2004 9 parts 26,085 words 69,426 views 4.8 stars (50 votes)
• Bending the straight boys by iciss  [  ]  At first all those hot straight guys seemed like real jerks. And then they started getting hunkier, and hornier, and a lot more aware of each other.  •Cock Growth •Huge Cock •Public Orgasm •Straight to Gay •Muscle Growth •Muscle/Strength •Getting Handsomer •First Time/Virgin •Incest •Brothers •Twins •Nonconsensual change •Infectious •M/M •M/M/M  Added Jan 2008 2 parts 11,063 words 68,835 views 4.7 stars (39 votes)
• A.I. by Corwin  [  ]  Tim’s homemade A.I. software decides to help him get huge.  •Huge Cock •Cum Milking •Addiction •Hyper Muscle •Muscle Growth •Muscle/Strength •Muscle Worship •Gradual Change •Plausible Size Difference •Size Increase •A.I.-Controlled Change •Destruction/Violence •Restraints •Androids/Cyborgs •Complete •M/M  Added Dec 2013 11 parts 30,556 words 68,581 views 4.8 stars (41 votes)
• Cool bracelet, bro by BRK  [  ]  Shortly after acquiring a mysterious leather bracelet, Pete and his kid brother Quentin have a conversation that leads rapidly toward just how hung Pete is, and how horny that makes his brother.  •Always Hard •Cock Growth •Huge Cock •Hyper Cock •Self-suck •Multicock •Multihead •Multiarm •Multileg •Multilimb •Three Legs •Multipec •Stacking •Muscle Growth •Muscle/Strength •Retcon •Suggestion •Incest •Brothers •t/t •t/t/t  Added Feb 2014 Updated Mar 2018 5 parts 16,745 words 67,687 views 4.5 stars (51 votes)
• Ben gets huge by spacevlad  [  ]  Matt, a kicker on a college football team, befriends Ben, a burly, bearish, muscular offensive lineman with a desire to get bigger. Matt is … able to help him with that.  •Hyper Cum •Muscle Growth •Muscle Gut •Muscle/Strength •Man Scent •Giants •Plausible Size Difference •Size Increase  Added Jun 2016 8 parts 17,849 words 66,596 views 4.3 stars (43 votes)
• Danny gets big by StudMscl  [  ]  Danny is unexpectedly given some brown paper packets that are supposed to turn him into everything he wishes he were. He quickly learns that changing your body changes your life in unexpected ways.  •Cock Growth •Huge Cock •Straight to Gay •Muscle Growth •Muscle/Strength •M/M  Added Nov 2003 3 parts 9,501 words 65,882 views 4.6 stars (20 votes)
• Morphed male bulge freaks by TitMorpher  [  ]  The future world of muscle cock bodybuilders becomes competitive, but top-seed Biff is especially amazed to pose off against someone who’s as hugely cocked as him without having had any augmentation down there at all.  •Cock Growth •Huge Balls •Muscle/Strength •Plausible Size Difference •Stories with Images  Added Dec 2012 Updated Apr 2015 2 parts 4,889 words 65,472 views 3.8 stars (5 votes)
• The alpha touch by Caliburn  [  ]  Young engineer Max has a good deed rewarded with a mysterious rune now tattooed to his wrist. Bestowed with the power to change the body of the men he touches, Max’s life and his friends’ change quite a bit.  •Cock Growth •Huge Balls •Huge Cock •Straight to Gay •Muscle Growth •Butt Growth •Increased Libido •Gradual Change •Voice Deepening •Getting Taller •Size Increase •Getting Hairy •Suggestion •Hetero Sex •Dom/Sub •Nonconsensual change •Series •M/F •M/M  Added Jan 2022 Updated Dec 2022 12 parts 50,362 words 65,441 views 4.9 stars (178 votes)
• Blessing or curse by Ultra GMan  [  ]  John has something a lot of guys would kill for a cock that gets bigger when you have certain kinds of sex. But that’s not all it’s cracked up to be—and the change isn’t always for the better.  •Cock Growth •Huge Balls •Huge Cock •Self-suck •Muscle Growth •Dildos/Toys •M/M  Added Jan 2012 Updated Apr 2012 18 parts 50,288 words 65,182 views 4.8 stars (26 votes)
• Public relations by Maximilian  [  ]  When Jamie gets an out-of-the-blue invitation to meet up with a friend he’d fallen out of touch with, he doesn’t realize Adam has an ulterior motive—or that it involves an unwilling introduction to growth and magic.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Cum •Muscle Growth •Muscle Gut •Muscle/Strength •Getting Taller •Giants •Plausible Size Difference •Size Decrease •Size Increase •Getting Hairy •Destruction/Violence •Restraints •Witch/Warlock/Wizard •Gay Pride •M/M  Added Jun 2015 Updated Apr 2019 18 parts 124,954 words 64,641 views 4.8 stars (44 votes)
• One hot summer by BRK  [  ]  Brandon and Eddie enjoy working for their pot-loving boss, Mike, at the pizza place near campus and are bummed they can’t stick around for the summer, too. Mike offers them a possible solution, though he doesn’t let them in on all his plans for the coming summer.  •Always Hard •Cock Growth •Huge Cock •Self-suck •Replication •Other Mental Changes •Muscle Growth •Muscle/Strength •Always Shirtless •Increased Libido •Gradual Change •Voice Deepening •Getting Taller •Giants •Plausible Size Difference •Size Decrease •Size Increase •Getting Hairy •Incest •Brothers •Twins •Nonconsensual change •Body Swap •Shared Body •Fourth of July •Gay Pride •Complete •Cannabis •Series •M •M/M •M/M/M •M/M/M/...  Added Jun 2019 Updated Jun 2022 54 parts 118,619 words 64,321 views 4.9 stars (52 votes)
• Metaboi by BRK  [  ]  There’s a special clothing store that caters especially to the meta boi. If you’re their kind of customer you already know it—or you’ll soon find out.  •Always Hard •Huge Cock •Hyper Cum •Multi-abs •Multicock •Multihead •Multiarm •Multilimb •Multipec •Multitongue •Replication •Stacking •Muscle Growth •Getting Taller •Plausible Size Difference •Retcon •Body Swap •Merging •Thanksgiving •Series •M/M •M/M/M  Added Jun 2010 Updated Nov 2017 8 parts 31,338 words 63,568 views 4.8 stars (17 votes)
• The gene gene by RdyRoger  [  ]  When other guys’ spunk transforms you into a totally different, much hotter guy, you learn there are lots of possibilities for fun—if you’re careful.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Muscle Worship •Getting Handsomer •Size Increase •Race/Ethnicity Change  Added Oct 2011 6 parts 32,071 words 62,678 views 4.6 stars (30 votes)
• Basement full of muscleboy gods by Krisiar  [  ]  Wrestler Oliver scores some pills that are supposed to bring on muscle growth, and decides to share them with his best buds after a match.  •Cock Growth •Huge Cock •Nipple Emissions •Multi-abs •Multicock •Boytaur •Four Legs •Multileg •Multilimb •Muscle Growth •Muscle/Strength  Added May 2011 2,124 words 62,463 views 4.4 stars (16 votes)
• Mustering up by Krisiar  [  ]  Jonas finds a terrible-smelling cologne that unexpectedly makes anything he says come true. Naturally he exploits this to make him and his friends hotter and more hung, but he soon loses control and takes things to extremes.  •Cock Growth •Huge Balls •Hyper Cock •Nipple Emissions •Multi-abs •Multilimb •Straight to Gay •Muscle Growth •Muscle/Strength •Retcon •Suggestion •M/M/M  Added Jul 2011 2 parts 5,992 words 61,000 views 4.3 stars (26 votes)
• Tank the bouncer by spacevlad  [  ]  Bar owner Matt can only afford one bouncer for his bar, so he hires the biggest one he can find: Tank, an ex-college football player who is eager to grow even bigger. Matt has a way to make that happen, but after the first unexpectedly effective injection, the newly huge and strong Tank starts turning the tables on his boss.  •Straight to Gay •Muscle Growth •Muscle Gut •Muscle/Strength •Man Scent •Giants •Plausible Size Difference •Size Increase •Getting Fatter •Destruction/Violence •Nonconsensual change •Rape •M/M  Added Jun 2016 Updated Aug 2016 18 parts 34,977 words 60,625 views 4.1 stars (33 votes)
• His brother drains his manhood by Ballmeat  [  ]  A younger brother drains his big, strong, overconfident older brother of his cock, balls and muscle.  •Cock Growth •Cock Shrinking •Cock Theft •Dom to Sub •Straight to Gay •Muscle Growth •Muscle Theft •Muscle/Strength •Incest •Brothers •Dom/Sub •Humiliation •Nonconsensual change •M/M  Added Jan 2018 2,593 words 60,532 views 4.4 stars (44 votes)
• The awakening by Johnny M  [  ]  Danny’s secret muscle-breast fantasy kink begins bleeding into the real world.  •Hyper Cum •Nipple Emissions •Muscle Breast •Muscle/Strength •Age Difference •Incest •Brothers •Father/Son •M/M •M/M/M •M/M/M/...  Added Jul 2012 10 parts 24,690 words 60,438 views 4.7 stars (19 votes)

• Matched pairs by Jerkoffcentral  [  ]  Peter becomes infected, not just with growth, but with a need for more strength and size.  •Cock Growth •Huge Cock •Self-suck •Muscle Growth •Muscle/Strength •First Time/Virgin •Incest •Brothers •Bisexual •Hetero Sex •M/M •M/M/F  Added Oct 2013 Updated Jun 2016 14 parts 42,000 words 59,793 views 4.7 stars (31 votes)
• I wanna get huge by JayPat  [  ]  “I wanna get huge,” he said.  •Muscle Growth •Muscle/Strength •Size Increase •Incest •Brothers •Christmas •Valentine's Day •Series •t/t  Added Oct 2012 2 parts 21,281 words 59,431 views 4.5 stars (26 votes)
• Unexpected growth spurt by rusalko  [  ]  Moving in with the cute guy you've been aching to push your big dick into is exciting and boner-making enough... but then I experienced a very unexpected growth spurt that put us both into sex heaven.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Plausible Size Difference •Size Increase •M/M  Added Dec 2012 Updated Feb 2017 6 parts 10,737 words 58,662 views 5.0 stars (15 votes)
• Male scent by Frank Easky  [  ]  Apprentice magician Sean’s potion exceeds his expectations, causing his personal musk to spread muscle growth to those who smell it.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Hyper Muscle •Muscle Growth •Muscle/Strength •Man Scent •Getting Taller •Giants •Size Increase •Age Regression •Getting Hairy •Incest •Brothers •Twins •Hyper Pheromones •Infectious  Added Jul 2002 2 parts 13,564 words 58,328 views 4.1 stars (16 votes)
• The Body Builder by Greggrth  [  ]  Steve’s life is about to take a very strange turn when a supervillain called the Body Builder breaks into his lab and causes an accident. Will this be the origin story of a new hero’s rise to glory, or will it spell disaster for the heroes of the city when Super Dick causes all sorts of changes when he can’t control his not so little buddy…  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Cum inflation •Muscle Growth •Stretchy •Size Increase •Lycra/Spandex •Rubber/Latex •Superhero/Supervillain •M/M •M/M/M  Added Dec 2020 Updated Dec 2022 15 parts 53,632 words 58,188 views 4.9 stars (59 votes)
• Speedo transformation by bruce  [  ]  That castmate in your high school play with the hot cock, great body, and perfect ass has a secret: special Speedos. And he’s very willing to share.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Transformation •Symbiotes  Added Feb 2009 2,096 words 58,027 views 3.9 stars (17 votes)
• Growth school by Writ Bro  [  ]  Kit’s rebellion against his rich, inattentive father ends him up in a school for delinquents. Only, it’s not at all what Kit expects.  •Cock Growth •Huge Cock •Pec Fucking •Muscle Breast •Muscle Growth •Muscle/Strength •Dom/Sub •Restraints •Sex-Slave •Lycra/Spandex •M/M •M/M/M  Added Jun 2018 Updated May 2019 12 parts 55,825 words 57,895 views 4.6 stars (22 votes)
• Hyper active imagination by Ziel  [  ]  James’s attention wanders sometimes, usually in the direction of making the person he’s staring at not just hotter but impossibly muscled and unbelievably hyper-donged. It’s so vivid, it’s almost like it’s real...  •Cock Growth •Hyper Cock •Muscle Growth •Muscle/Strength •Public Nudity •Getting Taller •Giants •Size Increase •Christmas •Valentine's Day •Complete •M/M  Added Oct 2013 Updated Mar 2022 5 parts 20,770 words 57,495 views 4.6 stars (29 votes)
• Being big by BigBoy  [  ]    •Huge Cock •Muscle Growth •Muscle/Strength  Added Jul 2002 953 words 57,270 views 2.4 stars (25 votes)
• Ben’s escapades by Kaelan  [  ]  Ben undergoes medical treatment to make his genitals unusually huge, but is he ready for the dramatic changes that it’ll bring to the rest of his life?  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Self-suck •Hyper Cum •Nipple Emissions •Muscle Growth •Muscle/Strength •Gradual Change •Incest •Brothers •M/M •M/M/M  Added Feb 2018 Updated Jun 2018 9 parts 33,606 words 56,628 views 4.7 stars (41 votes)
• Enlargement by Boston Guy  [  ]  A medical engineer develops nanotechnology that could cure the world of multiple diseases. But his true motivation is not so noble.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Straight to Gay •Muscle Growth •Muscle/Strength •Increased Libido •Gradual Change •Transformation •Size Increase •Nanotech •Nonconsensual change •Infectious •Hyper Anus •M/M •M/M/M •M/M/M/...  Added May 2013 Updated Jun 2013 5 parts 14,943 words 56,218 views 4.6 stars (28 votes)
• Damian and the three muscleteens by hyperboi  [  ]    •Cock Growth •Huge Cock •Hyper Cock •Straight to Gay •Muscle Growth •Muscle/Strength •Age Difference •Incest •Brothers •Father/Son •Twins •Infectious  Added Dec 2012 5 parts 8,170 words 55,723 views 4.3 stars (27 votes)
• Red pills by MaxMorphs  [  ]  A struggling college student and part-time stripper is introduced to Red Pills, which are supposed to be the one dick-growth pills that actually work. He’s skeptical—at first. (Chapters 1-7 revised as of summer 2019.)  •Cock Growth •Huge Cock •Hyper Cock •Addiction •Hyper Muscle •Immobility •Muscle Growth •Muscle Gut •Muscle/Strength •Getting Taller •Plausible Size Difference •Size Increase •Getting Hairy •M/M •M/M/M  Added Jan 2017 Updated Mar 2021 19 parts 53,990 words 54,767 views 4.7 stars (19 votes)
• Centurion of light by Ravine Mountain  [  ]  A great new story in which a centurion, Marcus, and five of his best men are transformed by the god Mars—and charged with a mission.  •Cock Growth •Huge Cock •Hyper Cock •Nipcocks •Hyper Cum •Nipple Emissions •Multi-abs •Muscle Growth •Muscle/Strength •Voice Deepening •Size Increase •Incest •Twins •Demons •Ancient Era •M/M •M/M/M •M/M/M/...  Added May 2014 Updated Jan 2019 12 parts 38,226 words 54,756 views 4.9 stars (49 votes)
• Alpha House by NBCK99  [  ]  A collection of young guys take part in a reality series where the action includes everyone spinning a wheel and getting random body changes.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Hyper Pheromones  Added Mar 2015 Updated May 2015 3 parts 11,941 words 54,471 views 4.7 stars (81 votes)
• Frank’s gym by Writ Bro  [  ]  Alec finds out more about what it means to be one of Frank’s bitches—and having his growth under Frank’s control.  •Cock Growth •Huge Cock •Muscle Breast •Muscle Growth •Muscle/Strength •Dom/Sub •Sex-Slave •Dildos/Toys •M/M •M/M/M  Added May 2014 Updated Mar 2015 7 parts 22,108 words 54,436 views 4.6 stars (38 votes)
• Transform by Also Known As  [  ]  Containing a secret is a hard thing to do. And the bigger the secret is, the harder it is to keep. No one was finding the truth of this more than those few men in charge at the Institute for Genetic Enhancement where the way has been found to transcend ordinary masculinity. The sequel to Supermen.  •Cock Growth •Ball Growth •Huge Cock •Prehensile Cock •Multicock •Muscle Growth •Muscle/Strength •Muscle Worship •Voice Deepening •Hyper Pheromones •Infectious •Flying •Series •M/M •M/M/M  Added Oct 2002 35 parts 131,918 words 54,300 views 5.0 stars (9 votes)
• Mimbo drops by Absman420  [  ]  Tom receives a secret serum that turns men into horny, dumb, huge-cocked muscle hunks. He decides to try it out on his bicycling buddy Sam, and discovers it’s extremely effective—especially in multiple doses.  •Cock Growth •Huge Cock •Getting Dumber •Straight to Gay •Muscle Growth •Muscle/Strength •Transformation •Nonconsensual change •Rape •Mind Control •M/M  Added Jul 2011 2 parts 13,794 words 53,926 views 4.7 stars (32 votes)
• Jeff’s story by Muscle Flex  [  ]  Jeff wants muscles. He wants to be big, and the serum he found will do just that. He gets big all right, and not just his muscles.  •Cock Growth •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Lycra/Spandex •M/M  Added Jul 2002 4 parts 8,109 words 52,514 views 4.3 stars (16 votes)
• Side effects by Braun1  [  ]    •Always Hard •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Size Increase  Added Feb 1997 7 parts 55,668 words 52,327 views 5.0 stars (6 votes)
• A man of growing proportions by crazywolf82  [  ]  Jacob’s cock starts to grow just as he meets a sweet guy named Kyle who seems very interested in him.  •Cock Growth •Huge Balls •Hyper Cock •Cum inflation •Hyper Cum •Stretchy  Added Oct 2014 5 parts 9,164 words 51,497 views 4.6 stars (35 votes)
• The berries down by the creek by Krisiar  [  ]  Jack hangs out with his friend and crush, Kurt, which leads to an encounter with a bush sporting some unusual berries.  •Cock Growth •Hyper Cock •Prehensile Cock •Nipple Emissions •Multi-abs •Muscle Growth •Muscle/Strength •Size Increase  Added May 2011 3,567 words 51,442 views 4.4 stars (12 votes)
• Be careful what you wish for by Tereshky  [  ]  “I can give you anything you wish for. Just don’t blame me if you weren’t specific enough.” A mystical man shows up to people in despair to offer the desires of their hearts, but he has a tendency to give them more than they wanted. So if a man in a gray suit comes up to you offering to give you anything you want, be careful what you wish for.  •Cock Growth •Huge Balls •Huge Cock •Straight to Gay •Immobility •Muscle Growth •Muscle/Strength •Age Regression •Nonconsensual change •M/M  Added Feb 2020 Updated Jun 2021 9 parts 42,479 words 51,263 views 4.8 stars (18 votes)
• Adam’s first growth spurt by MDS  [  ]  Adam comes home from a day of being bullied at school to find he definitely won't have to worry about anything like that after today.  •Huge Cock •Muscle Growth •Muscle/Strength •Giants •Size Increase •Incest •Brothers  Added Nov 2016 2,350 words 51,217 views 4.3 stars (15 votes)
• Summer research by spacevlad  [  ]  Dave, an ambitious researcher at a well-known university, hires an eager-to-grow football player to test an experimental growth supplement. The experimental growth supplement works much better than anticipated and Grunt gains over 50 pounds in just a week, though with some troubling side-effects.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Getting Dumber •Other Mental Changes •Straight to Gay •Hyper Muscle •Hyper Strength •Muscle Growth •Muscle Gut •Muscle/Strength •Man Scent •Belly Growth •Getting Taller •Giants •Plausible Size Difference •Size Increase •Getting Hairy •Destruction/Violence •Sex-Slave •Fourth of July •M/M  Added Oct 2017 Updated Dec 2017 12 parts 28,541 words 50,751 views 4.8 stars (28 votes)
• Mutant by Marquis de Rent  [  ]  Tom discovers that he is a mutant with the power to grow men that have sex with him. College jock Chris decides to take advantage of it.  •Cock Growth •Huge Cock •Hyper Cock •Straight to Gay •Immobility •Muscle Growth •Muscle/Strength •Giants •Size Increase •Superhero/Supervillain •M/M  Added Oct 2016 4,202 words 50,572 views 4.8 stars (29 votes)
• The beefening by Benjamin Skipper  [  ]  Spencer's roommates have been growing into huge hulking beasts, focused on working out, having sex… and now, turning Spence into one of them!  •Cock Growth •Huge Balls •Huge Cock •Muscle Growth •Muscle Gut •Muscle/Strength •Plausible Size Difference •Size Increase •Getting Hairy •Dom/Sub •Nonconsensual change •M/M •M/M/M  Added Feb 2018 2,274 words 50,543 views 4.5 stars (34 votes)
• Drug test by Also Known As  [  ]    •Cock Growth •Huge Cock •Cum inflation •Addiction •Muscle Growth •Muscle/Strength •Size Increase  Added May 2011 8 parts 16,269 words 50,337 views 4.8 stars (15 votes)

• Bulking by Proteus  [  ]  Sometimes, when people have a crush on their hunky roommate, they act on it by secretly trying to make the guy progressively hotter.  •Muscle Growth •Muscle Gut •Muscle/Strength •Butt Growth •Gradual Change •Getting Hairy  Added Mar 2013 6 parts 7,143 words 49,979 views 4.6 stars (18 votes)
• The gifted child by JayPat  [  ]  Young psychologist Justin Conroy poses as a valet to profile Evan, as genius prodigy whom his father things might be a sociopath. Evan has his own plans for Justin—and for some illegal genome experiments he’s uncovered.  •Huge Cock •Hyper Strength •Muscle Growth •Muscle/Strength •Sex-Slave  Added Oct 2012 7 parts 45,420 words 49,854 views 4.5 stars (31 votes)
• Sean goes to prison by Joven  [  ]  After an ill-advised flirtation with vandalism, Sean ends up at a very strange detention center where you’re either milking the other prisoners with the oversized balls, or… you’re one of the ones being milked.  •Cock Growth •Huge Balls •Ball Growth •Huge Cock •Cum Milking •Straight to Gay •Muscle Growth •Size Increase •Nonconsensual change •Restraints •M/M •M/M/M/...  Added Aug 2017 Updated Dec 2021 18 parts 28,246 words 49,757 views 4.7 stars (42 votes)
• No strings attached by muscl4life  [  ]  Donny walks in on his roommate, Sebastian, in the midst of his efforts to make himself bigger.  •Cock Growth •Huge Cock •Hyper Cock •Cum inflation •Muscle Growth •Muscle/Strength •Size Increase •Incest •Brothers •Twins •Hypnosis  Added May 2014 3 parts 39,280 words 49,620 views 4.5 stars (24 votes)
• Adam’s milk by Adam Zander  [  ]  Adam’s dreams of growing massive pec-tits like the wrestlers he admires come true—in spades.  •Cock Growth •Hyper Cock •Nipple Emissions •Muscle Breast •Size Increase •Set in the Future  Added May 2015 2 parts 2,600 words 49,589 views 3.4 stars (18 votes)
• Dad’s gift by John Y.  [  ]  For Jeff’s 18th birthday, his dad decides to give him something special and close to his heart—a donkey dick.  •Cock Growth •Huge Cock •Age Difference •Incest •Father/Son  Added Mar 2004 4,994 words 49,467 views 4.7 stars (27 votes)
• Biological inheritance by Frank Easky  [  ]  Sean discovers he had been magicked into early maturation to prevent his growth. The mage who imparted this information then attempts to set things right. Will Sean grow into his true biological inheritance?  •Cock Growth •Huge Balls •Hyper Cock •Muscle Growth •Muscle/Strength •Size Increase •Witch/Warlock/Wizard  Added Jul 2002 5,755 words 49,160 views 4.1 stars (10 votes)
• His cock gets huge by Jack Hardwood  [  ]  Male model Pietro washes up on a remote island inhabited by a society of men where everyone wants their cock to be as big and fat as humanly possible. Pietro just wants to go home, but his almost constant boner is getting bigger and bigger, and he doesn’t know how much longer he’ll be able to walk.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Muscle Growth •Increased Libido •M/M  Added Dec 2017 Updated Apr 2018 8 parts 14,650 words 48,790 views 4.7 stars (31 votes)
• Reality Pack by Thorn  [  ]  What happens when the program you’re working on for school has a downloadable mod? You investigate it of course!  •Cock Growth •Huge Cock •Pec Fucking •Muscle Breast •Muscle Growth •Muscle/Strength •Butt Growth •Belly Growth •Gradual Change •Getting Taller •Plausible Size Difference •Getting Hairy •App •Age Difference •First Time/Virgin •Incest •Brothers •Father/Son •Valentine's Day •M/M •M/M/M  Added Nov 2020 Updated Feb 2021 15 parts 79,094 words 48,231 views 4.9 stars (37 votes)
• Changes in stages by Writ Bro  [  ]  That box of clothes in the attic of your new rental house? Don’t pass them off to Goodwill just yet.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Lycra/Spandex  Added Oct 2010 Updated Jun 2011 3 parts 14,283 words 48,186 views 3.7 stars (14 votes)
• One more drop by MegaMaker  [  ]  A college water polo player, Rain, is having trouble keeping up with expectations after a lackluster swim season. Afraid of getting cut from his team, he finds a mystery serum that improve his performance. To his surprise it works and his improved performance gets the approval of his entire team and his coach and really attracts the attention of his friend River. Will the attention go his head? Will his team and coach find out? And… will there be any side effects caused by the use of the serum?  •Always Hard •Cock Growth •Huge Balls •Ball Growth •Huge Cock •Hyper Cock •Always Cumming •Hyper Cum •Public Orgasm •Multi-abs •Addiction •Straight to Gay •Hyper Muscle •Hyper Strength •Immobility •Muscle Growth •Muscle/Strength •Muscle Worship •Always Shirtless •Public Nudity •Man Scent •Butt Growth •Increased Libido •Gradual Change •Voice Deepening •Getting Taller •Forced Growth •Plausible Size Difference •Size Increase •Getting Hairy •Lycra/Spandex •Complete •M/M  Added Mar 2023 Updated May 2023 16 parts 47,887 words 47,483 views 4.9 stars (57 votes)
• The good freak by Also Known As  [  ]  Kevin Peters is a cheerful, very fit young man who happens to be getting bigger and hotter in every way, much to the bemusement (and secret arousal) of his doctor. Soon the guys around him are growing too, and Dr. Donaldson discovers even he’s not immune...  •Always Hard •Cock Growth •Huge Balls •Huge Cock •Hyper Cum •Muscle Growth •Muscle/Strength •Gradual Change •Getting Taller •Size Increase •Infectious •April Fool's Day •M/M •M/M/M •M/t •t/t •t/t/t  Added Nov 2002 33 parts 33,508 words 47,437 views 4.9 stars (24 votes)
• Seducers by Also Known As  [  ]  The sequel to Supermen and Transform. The community of impossibly attractive, physically gifted, sex-evolved men grows.  •Cock Growth •Huge Cock •Hyper Cock •Prehensile Cock •Multicock •Muscle Growth •Muscle/Strength •Muscle Worship •Getting Handsomer •Voice Deepening •Hyper Pheromones •Flying •Series  Added Aug 2003 Updated Jan 2014 31 parts 108,068 words 47,244 views 3.8 stars (13 votes)
• American giants by Jonathan Banner  [  ]  Johnny is introduced into a world of big men who are growing enormous cocks.  •Cock Growth •Huge Cock •Foot Growth •M/M •M/M/M  Added Jan 2015 6 parts 26,948 words 47,203 views 4.7 stars (53 votes)
• Skin tight by Dream Big  [  ]  Mark has big brains, but a big body? Not so much. So he decides to bend his gray matter toward a high-tech A.I.-assisted body suit that will help him achieve the kind of body he dreams about.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Self-suck •Muscle Growth •Muscle/Strength •Gradual Change •Getting Taller •Plausible Size Difference •Size Increase •Hyper Tongue •A.I.-Controlled Change •Nanotech •Nonconsensual change •Hyper Pheromones •M/M  Added Apr 2019 Updated Oct 2020 23 parts 37,778 words 46,895 views 4.6 stars (41 votes)
• The Zeke chronicles by Sean Reid Scott  [  ]  Zeke, an 18 year-old gorgeous stud, was already big before some very special visitors seem to have given him a special ability to grow and grow, bigger and bigger, stronger and stronger.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Muscle Worship •Getting Taller •Age Difference •Incest •Father/Son •Dom/Sub •M/M •M/M/M  Added Jul 2013 Updated May 2017 7 parts 27,675 words 46,709 views 4.4 stars (18 votes)
• Shirtbusters by TFWizard  [  ]  Jared, Lance, and Lance’s father Ben discover a way to bust out of their shirts, and they can’t get enough of it.  •Muscle Growth •Muscle/Strength •Size Increase •Age Difference •Incest •Father/Son  Added Oct 2005 2 parts 6,769 words 46,618 views 4.1 stars (14 votes)
• That’s a really huge cock, bro by Luke B.  [  ]  Just a down and dirty story about one jock stud finding out his muscle-bound jock buddy is hung like a mule—and growing.  •Cock Growth •Huge Cock •Hyper Cock •Straight to Gay •Muscle Growth •Muscle/Strength •All Dialog •M/M  Added Nov 2016 3,726 words 46,588 views 4.8 stars (41 votes)
• The application by SuperWaffle  [  ]  A powerful story in which an anthro fox named Bradley learns that a body-morphing app is a wondrous, life-changing thing for himself and for new friends as well—if it doesn’t fall into the wrong hands, that is.  •Muscle Growth •Muscle/Strength •Muscle Worship •Size Increase •Getting Hairy •App •Anthro/Furry •M/M  Added Apr 2015 8 parts 44,454 words 46,580 views 4.9 stars (24 votes)
• Naked by Also Known As  [  ]  Dave’s new dorm roommate, Lance, is naked. Always, constantly, deliciously naked. He’s also, huge, hung, and constantly horny. But what really changes everything is the unexpected effect that Dave has on Lance—and what Lance does to Dave.  •Cock Growth •Huge Cock •Hyper Cum •Muscle Growth •Muscle/Strength •Public Nudity •Plausible Size Difference •Size Increase •M/M  Added Jun 2016 10 parts 38,843 words 46,299 views 4.6 stars (35 votes)
• King size by BRK  [  ]  King Rafe is subjected to a curse that will cause him, or rather a certain part of him, to become a monster, and his lover and mage-advisor Will is understandably conflicted about this turn of events.  •Always Hard •Cock Growth •Huge Cock •Self-suck •Witch/Warlock/Wizard •M/M  Added Aug 2006 Updated Jan 2022 7 parts 18,527 words 46,140 views 4.4 stars (16 votes)
• Claves, the midnight marauder by Ziel  [  ]  Claves, the kingdom’s most notorious thief, has been cursed! What was meant as a means to entrap the thief and blow his cover forever backfires spectacularly as Claves ends up enjoying the curse. Now armed with a massive cock, the power to spread the curse to others, and an exhibitionist streak almost as long as his dong, Claves sets out to spread the curse and sow a little mischief and a lot of wild oats.  •Cock Growth •Hyper Cock •Cum inflation •Hyper Cum •Fantasy Realm •M/M  Added Jun 2013 Updated Jan 2015 7 parts 40,994 words 45,659 views 4.3 stars (28 votes)
• Domination by dunnyboy  [  ]  Jay's already growing submission to Chris escalates dramatically as Chris reveals he's been taking injections that will turn him into the ultimate muscle fantasy. But Chris won't be the only one affected.  •Cock Growth •Huge Cock •Hermaphrodite •Muscle Growth •Muscle/Strength •Man Scent •Size Increase •Getting Hairy •Dom/Sub  Added Feb 2017 17,095 words 45,521 views 4.7 stars (35 votes)
• Magnetic magic by Squidy  [  ]  Josh discovers his new roommate, Jack, has a powerful effect on him—especially his cock.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength  Added Dec 2014 Updated Sep 2016 6 parts 13,223 words 45,317 views 4.6 stars (60 votes)
• Mega pecs maker dosing accident by TitMorpher  [  ]    •Muscle Breast •Muscle Growth •Muscle/Strength •Stories with Images •Series  Added Apr 2013 1,465 words 45,246 views
• Josh’s genie by Anarchy A  [  ]  Bullied teen swimmer Josh uses the unexpected acquisition of a genie to try improving things at school, one daily wish at a time.  •Huge Cock •Muscle Growth •Muscle/Strength •Size Increase •Djin/Jinn/Genie •t/t  Added Oct 2015 Updated Jan 2016 4 parts 8,133 words 45,217 views 4.9 stars (11 votes)
• Grow and get huge by Massiveboy  [  ]    •Muscle Growth •Muscle/Strength •Getting Taller •Getting Hairy  Added Jul 2002 1,112 words 45,115 views 4.2 stars (14 votes)
• Mass X by Max Mann  [  ]  Five short stories of men getting bigger and sexier, through the use of “Mass X”.  •Cock Growth •Huge Cock •Straight to Gay •Muscle Growth •Muscle/Strength •Increased Libido •Getting Handsomer •Getting Hairy •Age Difference •Incest •Father/Son •Christmas •New Year's Eve •M/M  Added Feb 2005 5 parts 19,019 words 45,098 views 4.7 stars (16 votes)
• Comeuppance by JJJJohnson  [  ]  No more than one tablespoon each, huh? Suuuuuure!  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Giants •Size Increase •Brothers •Twins  Added May 2006 4,071 words 45,057 views 4.6 stars (19 votes)
• Gooed friends by Ziel  [  ]  The author, prompted to write about multi-limb and keen to indulge in his love for “slime boys,” offers a story rife with gooey fun, cute sappy young love, multi-limbs, consentacles and some mild muscle and junk growth for good measure.  •Cock Growth •Huge Cock •Multicock •Multilimb •Size Increase •Goo People •Tentacle •Halloween •Shapeshifting •M/M  Added Jul 2014 Updated Jan 2018 5 parts 38,627 words 44,895 views 4.7 stars (70 votes)
• Enhancement program by BRK  [  ]  The university’s program of offering body enhancement rewards for various kinds of scholastic and athletic achievements is very generous, and students like to have fun with the results.  •Always Hard •Cock Growth •Huge Cock •Hyper Cock •Multi-abs •Multihead •Multilimb •Multipec •Mouthcock •M/M •M/M/M •M/M/M/...  Added Jan 2014 Updated Jun 2018 4 parts 12,215 words 44,792 views 4.7 stars (18 votes)
• Alex in Wonderland by Anarchy A  [  ]  Alex follows mysterious man into a forest, and quickly finds himself in a strange new world, deep below the ground.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Hyper Muscle •Muscle Growth •Muscle/Strength •Size Decrease •Size Increase •M/M  Added Jan 2016 Updated Apr 2017 3 parts 6,184 words 44,573 views 4.4 stars (43 votes)
• The power of suggestion by BRK  [  ]  On a long bus trip, Jordan can't help using his ability to suggest physical changes on his handsome seatmate, but things soon get out of hand.  •Cock Growth •Huge Cock •Multicock •Replication •Muscle Growth •Muscle/Strength •Size Increase •Retcon •Suggestion •Incest •Brothers •Twins •Complete •Series  Added Feb 2009 1,878 words 44,501 views 4.8 stars (37 votes)
• Freshman dreams by BRK  [  ]  Even when he’s home sick, Stefan’s ability to dream up new transformations on his schoolmates is a big pain. Make that, especially when he’s home sick.  •Huge Cock •Multi-abs •Multihead •Multiarm •Multilimb •Replication •Wings •Muscle Growth •Muscle/Strength •Size Increase •Nonconsensual change •Flying •Complete •t/t •t/t/t  Added Mar 2009 4 parts 3,089 words 44,449 views 4.8 stars (18 votes)
• Transform: Muscle City by Also Known As  [  ]  Emotionally, the Muscle Club has become a community of transformed men who are farm beyond normal. Now is the time to make it a literal community all its own—a city of transformed muscle.  •Always Hard •Always Hard •Cock Growth •Cock Growth •Huge Cock •Huge Cock •Multicock •Multicock •Straight to Gay •Straight to Gay •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Muscle Worship •Muscle Worship •Getting Handsomer •Getting Handsomer •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 21 parts 119,996 words 44,401 views 4.1 stars (17 votes)
• Cock boy conversions by CockTFBoi  [  ]  A gift of wish-power to a horny teen leads to some hot guys at school being turned into cock-creatures.  •Human to Cock •Multicock •Straight to Gay •Transformation •Size Decrease •Nonconsensual change •t/t •t/t/t...  Added Mar 2014 19 parts 14,199 words 44,340 views 3.6 stars (10 votes)
• Brotherly love by Seth Peterson  [  ]  Two brothers get the best weekend they can imagine through the use of some very special, very wonderful powers. Rest assured, the results are BIG.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Muscle Growth •Muscle Gut •Muscle/Strength •Getting Taller •Size Increase •Incest •Brothers •Merging  Added Dec 2015 7,666 words 44,317 views 4.8 stars (19 votes)
• David devolving by FanTCMan  [  ]    •Cock Growth •Huge Balls •Huge Cock •Getting Dumber •Straight to Gay •Muscle Growth •Muscle/Strength •Nonconsensual change  Added Sep 2003 2 parts 9,538 words 43,902 views 4.8 stars (18 votes)
• No reason by MaxMorphs  [  ]  At the gym, Pascal notices that not only is are his pecs getting huge, but his nips are showing under his hoodie more than they should.  •Huge Cock •Nipcocks •Nipple Emissions •Muscle Breast •Muscle Growth •Muscle Gut •Muscle/Strength •Belly Growth •Size Increase •Christmas •M/M  Added Jan 2017 Updated Nov 2022 3 parts 12,037 words 43,754 views 4.8 stars (25 votes)
• Anything to grow by Big Bull Trainer  [  ]  There are some with an unquenchable desire to not only grow, but to grow to unnaturally large proportions, and will go to any lengths to do it. This is a story of just such a person.  •Getting Dumber •Immobility •Muscle Growth •Muscle/Strength •Transformation •Size Increase  Added Aug 2016 7,815 words 43,585 views 4.4 stars (16 votes)
• Cock medication by Jocktaur Kyle  [  ]    •Cock Growth •Huge Cock •Hyper Cock •Self-suck  Added Jun 2006 2,097 words 43,183 views 4.7 stars (13 votes)
• And then he came by Teen Hulk  [  ]  David's dream is interrupted … but only until his next visit to the gym.  •Cock Growth •Huge Cock •Self-suck •Hyper Cum •Muscle Growth •Muscle/Strength •First Time/Virgin •Infectious •M/M  Added May 2002 2 parts 7,372 words 43,179 views 4.4 stars (9 votes)
• Luke is growing by Coolkid  [  ]    •Cock Growth •Hyper Cock •Size Increase  Added Jun 2013 1,246 words 43,006 views 3.7 stars (10 votes)
• The bodyguards by MaxMorphs  [  ]  Two already huge and beautiful brothers apply for a job guarding a man who might be able to help them get even bigger.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Nipcocks •Hyper Cum •Nipple Emissions •Multicock •Hyper Muscle •Muscle Growth •Muscle Gut •Muscle/Strength •Belly Growth •Gradual Change •Plausible Size Difference •Size Increase •Inflation •Incest •Brothers •Twins •M/M •M/M/M  Added Apr 2021 Updated Aug 2021 9 parts 22,376 words 42,860 views 4.8 stars (46 votes)
• Bigger issues: Ultimate growth by muscl4life  [  ]    •Cock Growth •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Muscle Worship •Increased Libido •Size Increase •Infectious •Series  Added Nov 2013 Updated Dec 2013 6 parts 31,808 words 42,805 views 4.4 stars (7 votes)
• Enchanted growth by NBCK99  [  ]  When Andrelle’s questing companions succeed in finding a magical dagger, he discovers just why the artifact is so desirable.  •Cock Growth •Huge Balls •Hyper Cock •Muscle Growth •Muscle/Strength •Size Increase •Fantasy Realm •M/M •M/M/M  Added Apr 2015 Updated Oct 2015 5 parts 18,345 words 42,772 views 4.7 stars (29 votes)
• A thing called curiosity by papermoon  [  ]  Out for a jog, 19-year-old Cameron decides to investigate an abandoned house that holds some unexpected secrets.  •Huge Balls •Huge Cock •Hyper Cum •Nipple Emissions •Muscle Breast •Muscle Growth •Muscle/Strength •Transformation •Size Increase •Merging •M/M  Added Jan 2014 6,529 words 42,650 views 4.3 stars (23 votes)
• Little bro by Ziel  [  ]  Hunky big bro Liam has always teased his puny kid brother Connell. But after his accident, Connell got some experimental treatments that are guaranteed to change who calls who the “little bro” from now on.  •Cock Growth •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Giants •Size Increase •Incest •Brothers  Added Apr 2017 5,382 words 42,414 views 4.7 stars (15 votes)
• Love/shift by BRK  [  ]  Maxfield has very mixed feelings about leaving the city and all his tech behind to spend the summer after graduation halfway up a mountain in the family’s backwoods cabin—just him, his dad, and a whole lot of secrets.  •Muscle Growth •Muscle/Strength •Always Shirtless •Man Scent •Gradual Change •Transformation •Size Increase •Getting Hairy •Age Difference •Incest •Father/Son •Werebears •Supernatural •Complete •Series •M/M  Added Dec 2017 Updated Apr 2019 11 parts 68,079 words 42,068 views 4.8 stars (36 votes)
• Finding Mark by nightwolf285  [  ]  Turning 16 means lots of changes for Mark. The one he’s not expecting is the ability to change his own body.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Size Increase •t  Added Oct 2010 11 parts 28,620 words 41,849 views 5.0 stars (14 votes)
• The pendant by Bulge101  [  ]  Alex gets a necklace for his 18th birthday that results in some big changes for himself and his closest friend, Griffin.  •Cock Growth •Huge Cock •Straight to Gay •Muscle Growth •Muscle/Strength •M/M  Added Jun 2012 Updated Jul 2012 3 parts 4,654 words 41,838 views 4.8 stars (18 votes)
• Alpha by CharitysSongbird  [  ]  Used to being smaller than his office mates, especially his crush Tavy, Ritzy is stunned when he suddenly starts getting bigger and furrier, even as the impulse to dominate seeps into his personality.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Self-suck •Muscle Growth •Muscle/Strength •Transformation •Getting Taller •Size Increase •Dom/Sub •Anthro/Furry •Werewolves •M/M  Added Aug 2018 14,259 words 41,777 views 4.7 stars (12 votes)
• Vice (Sometimes drugs offer more than a high) by Tereshky  [  ]  Jack was a drug kingpin of sorts. Like any potent drug, people craved it, they came to him, offered him their life’s treasures and he gave them their fix. In a world where usually only the strongest survive and only the smartest staid on top, he was doing quite well for himself and living an easy life. There were no rival drug lords because what he had to offer nobody else could give. His drug came from within.  •Cock Growth •Huge Balls •Hyper Cock •Self-suck •Cum inflation •Cum Milking •Hyper Cum •Addiction •Immobility •Muscle Growth •Muscle/Strength •Belly Growth •Size Increase •First Time/Virgin •Nonconsensual change •M/M  Added Jun 2018 Updated Nov 2019 5 parts 11,930 words 41,679 views 4.6 stars (35 votes)
• Joey’s genie by RdyRoger  [  ]  Now that he has a genie at his command, Joey is going to go enjoy the world, decides to give his friend Rob a few gifts before he leaves.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Pointy Ears •Djin/Jinn/Genie  Added Feb 2009 Updated Apr 2012 5,218 words 41,629 views 4.8 stars (11 votes)
• Transform: New Blood by Also Known As  [  ]  The formula Carlos developed, Transform, has made him and his friends into veritable gods. Soon their numbers will be growing, thanks in part to a video featuring a guy known only as Self-Suck Sam.  •Always Hard •Cock Growth •Huge Cock •Self-suck •Multicock •Muscle Growth •Muscle/Strength •Muscle Worship •Man Scent •Increased Libido •Voice Deepening •Size Increase •First Time/Virgin •Infectious •Flying •Series  Added Jan 2014 47 parts 188,423 words 41,490 views
• Sk8r dreams by Reaver  [  ]  The Maker is an app that gives you the ability to remake the world around you. That means a better house, a hotter body—and it definitely means turning a few guys in your life into happy, hunky skater bois.  •Cock Growth •Ball Growth •Huge Cock •Replication •Always Shirtless •Increased Libido •Transformation •Voice Deepening •Age Regression •Race/Ethnicity Change •App •Retcon •Nonconsensual change •Infectious •Mind Control •Series  Added Oct 2003 19 parts 58,830 words 41,201 views 4.1 stars (19 votes)
• Grandfather’s gift by Joseph  [  ]    •Cock Growth •Hyper Cock •Nipple Emissions •Size Increase  Added May 2012 2,983 words 41,183 views 2.9 stars (13 votes)
• You and I by BRK and Jockmorphr  [  ]  When two lovers with the power to transform each other reunite after a separation, the results can be explosive.  •Always Hard •Cock Growth •Huge Cock •Nipcocks •Nipple Emissions •Multi-abs •Multicock •Multihead •Multiarm •Multilimb •Multipec •Multitorso •Replication •Stacking •Muscle Growth •Muscle/Strength •Getting Handsomer •Tongue Growth •Mouthcock •Infectious •Merging •M/M •M/M/M •M/M/M/...  Added Oct 2011 Updated Feb 2019 4 parts 11,942 words 41,181 views 4.8 stars (13 votes)
• Navy experiment by BRK  [  ]  The new protocol of vaccinations on the U.S.S. Tulsa developed by Dr. Tosk had very deliberate side-effect: your body is affected by whoever you lust for. Tosk plans for the sailors to start lusting after his impressive form—but who does Tosk lust for?  •Cock Growth •Huge Cock •Extra digits •Multi-abs •Multicock •Multiarm •Multilimb •Three Legs •Other Mental Changes •Muscle Growth •Muscle/Strength •Increased Libido •Plausible Size Difference  Added Mar 2010 4 parts 5,764 words 41,095 views 4.4 stars (15 votes)
• Afternoon swim by Viva Wales  [  ]    •Cock Growth •Huge Cock •Hyper Cock •Foot Growth •Getting Taller •Size Increase  Added May 2002 1,544 words 41,041 views 3.7 stars (7 votes)
• Stop staring at me by BRK  [  ]  Those glasses with the funny settings on the side are a lot of fun and very addicting.  •Always Hard •Cock Growth •Huge Cock •Hyper Cum •Extra digits •Multicock •Multipec •Muscle Growth •Muscle/Strength •Transformation •Size Increase  Added Jul 2006 1,991 words 40,879 views 4.8 stars (8 votes)
• grUV by quickquezzed  [  ]  Friends go out clubbing by the water and make a hunky new friend, Brad, who likes to swim and looks great in just a red speedo. Brad has a secret that he hadn’t planned to show his new friend, but things soon get pleasantly out of hand.  •Cock Growth •Huge Cock •Hyper Cock •Self-suck •Muscle Growth •Muscle/Strength •Size Increase •M/M  Added Nov 2017 5,910 words 40,814 views 4.9 stars (169 votes)
• The biggest dick by Ziel  [  ]  "For this month’s Patreon story, someone suggested I try a story about someone whose cock begins growing, but unlike in other stories, the dude’s elation slowly gives way to apprehension as his schlong exceeds the idyllic porn-star cock and slowly grows into a massive, mega-dong."  •Cock Growth •Hyper Cock •Muscle/Strength •M  Added Dec 2014 5,550 words 40,673 views 4.6 stars (40 votes)
• The revisualizer by BRK  [  ]  A set of weird controls at the tiny cable TV broadcasting studio has a lot of increasingly exciting effects on the guy in the picture.  •Always Hard •Cock Growth •Huge Cock •Hyper Cock •Nipcocks •Self-suck •Nipple Emissions •Muscle Growth •Muscle/Strength •Size Increase •Getting Hairy •Nonconsensual change •M/M  Added Oct 2012 Updated Dec 2017 3 parts 10,528 words 40,649 views 4.9 stars (37 votes)
• Augmentations by Also Known As  [  ]  Pursuing a fantasy, a successful man hires an erotic partner who’s been augmented, but the kinds of pleasures his new lover can share with him are far beyond anything he’d imagined.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Muscle Worship •Man Scent •Getting Handsomer •Size Increase •Set in the Future •Series  Added Jan 2014 18 parts 98,808 words 40,525 views 4.1 stars (9 votes)
• The bet by JayPat  [  ]  Brandon can't believe that Derek isn't into the muscles of their fellow students like he and Peter are, and he ends up betting Peter that he'll get Derek obsessing about muscle by graduation.  •Muscle Growth •Muscle/Strength •Size Increase •Suggestion •t/t  Added Oct 2012 4 parts 31,784 words 40,510 views 4.8 stars (27 votes)
• Hung like a... by IamYurNayboor  [  ]    •Huge Cock  Added Nov 2010 Updated Dec 2010 684 words 40,510 views 2.4 stars (14 votes)
• Laundry day by Aphon  [  ]  A scientist on the verge of a cock growth breakthrough is a little careless and his formula ends up on the jockstrap of a hunky personal trainer, what could go wrong?  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Size Increase •Getting Hairy •Humiliation •Nonconsensual change  Added May 2017 Updated Dec 2019 12 parts 9,685 words 40,387 views 4.3 stars (19 votes)
• META jocks by BRK and Jockmorphr  [  ]  Two members of a select fraternity full of superhot, multilimbed guys semi-obliviously compare notes on how their powerful cum promotes changes in their bodies—and, it turns out, each other’s.  •Cock Growth •Huge Balls •Huge Cock •Nipcocks •Nipple Emissions •Multi-abs •Multicock •Multihead •Multilimb •Multipec •Replication •Stacking •Muscle Growth •Muscle/Strength •Man Scent •Size Increase •Retcon •Suggestion •Complete  Added Aug 2009 4 parts 7,269 words 40,339 views 4.5 stars (15 votes)

• Visiting home by Wicked  [  ]  Asher spent his entire first semester working out and gaining some serious muscle, but when he returns home for winter break, he doesn’t realize that he’ll be the one amazed by how much someone can change.  •Huge Cock •Muscle Growth •Muscle/Strength •Size Increase •Age Difference •Incest •Father/Son •Infectious •M/M  Added Jan 2016 Updated May 2016 2 parts 6,753 words 39,900 views 4.8 stars (30 votes)
• Growing boys at UMich by iciss  [  ]  Those football jocks in the UMIch gym are about to get a whole lot hotter.  •Cock Growth •Huge Cock •Straight to Gay •Muscle Growth •Muscle/Strength •Getting Handsomer •Infectious •M/M  Added Jan 2007 4 parts 7,144 words 39,813 views 4.7 stars (21 votes)
• The Latin twins by RdyRoger  [  ]  A man is gifted by "the watchers" to make changes to himself and others that will last for 24 hours. Two of his escapades are detailed in this story.  •Cock Growth •Cock Shrinking •Huge Balls •Huge Cock •Straight to Gay •Muscle Growth •Muscle/Strength •Gradual Change •Getting Taller •Size Decrease •Size Increase •Race/Ethnicity Change •Suggestion •Incest •Brothers •Dom/Sub  Added Apr 2012 2 parts 7,238 words 39,791 views 4.7 stars (9 votes)
• Frat boys, bro!! by Seth Peterson  [  ]  What happens when a handsome boy and his buddy finds some frat boy pills? Sick bulky results, BRO!!  •Huge Balls •Huge Cock •Getting Dumber •Muscle Growth •Muscle Gut •Muscle/Strength •Belly Growth •Size Increase •Getting Hairy •Getting Fatter •M/M  Added Jan 2018 2,556 words 39,655 views 3.9 stars (37 votes)
• Adventures of a selfsucker by willy8  [  ]  Silas loves going down on his own big cock, and while the intense experience of autofellatio doesn’t help him with his girlfriend it does bring him closer to his handsome roommate Ben.  •Cock Growth •Huge Cock •Self-suck •Bisexual •Hetero Sex •M •M/F •M/M  Added Jul 2015 Updated Jul 2017 16 parts 42,450 words 39,551 views 4.3 stars (22 votes)
• Alex’s gift by Will Bowden  [  ]  A teen discovers his shapeshifting ability, which seems to be tied to the horniness of other guys.  •Incest •Brothers •Shapeshifting •t/t  Added Apr 2003 3 parts 4,345 words 39,465 views 4.7 stars (15 votes)
• Not just imagination by DarkDjin  [  ]  Jampson’s overactive imagination starts to grow his cop dad and his friends...and somehow not only does it become real, but the men are pretty into it.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Suggestion •Age Difference •Incest •Father/Son  Added Jun 2014 Updated Jul 2014 2 parts 10,894 words 39,465 views 4.6 stars (37 votes)
• Say cheese and grow by hyperboi  [  ]  When Greg and his friends take a picture of themselves using a creepy camera, the resulting image shows them wildly transformed in different ways. They just think it’s a weird glitch, until it slowly starts becoming true.  •Cock Growth •Huge Cock •Self-suck •Muscle Growth •Muscle/Strength •Gradual Change •Incest •Brothers •t/t •t/t/t  Added Nov 2013 13 parts 29,433 words 39,328 views 4.7 stars (25 votes)
• Dude cums and cums and cums by Justusboys  [  ]    •Hyper Cum  Added Apr 2011 2,827 words 39,283 views 4.7 stars (23 votes)
• Body game: Encounter 813 by BRK  [  ]  Reggie isn’t sure why the team-building get-together for the web design firm he’s working for is being held at an abandoned mall; he just knows he can’t get his sexy boss out of his mind.  •Always Hard •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Extra digits •Multi-abs •Multicock •Multiarm •Multilimb •Multipec •Multitongue •Replication •Stacking •Muscle Growth •Stretchy •Foot Growth •Getting Taller •Plausible Size Difference •Size Increase •Getting Hairy •Hyper Tongue •Tongue Growth •Mouthcock •Incest •Brothers •Series •M/M •M/M/M  Added May 2016 Updated Jun 2021 9 parts 49,136 words 39,213 views 4.9 stars (27 votes)
• Shift by NBCK99  [  ]  At first there were only a few of those abnormally tall, wildly muscular, huge-cocked, boner-inducing half-naked guys, encountered here and there on a train, in a mall, a demigod amidst the chaff. That was at first.  •Cock Growth •Huge Cock •Hyper Cock •Multiarm •Muscle Growth •Muscle/Strength •Plausible Size Difference •Retcon •M/M •M/M/M  Added Jul 2014 Updated Mar 2016 5 parts 13,636 words 38,578 views 4.7 stars (56 votes)
• The body spray by Coalth  [  ]  Bodybuilder Kevin, needing a little armpit spray, spots a strange brand of deodorant in the gym vending machine and decides to give it a try.  •Huge Cock •Muscle Growth •Muscle/Strength •Public Nudity •Man Scent •Gradual Change •Human to Animal/Anthro •Getting Hairy •Anthro/Furry •M/M  Added Mar 2013 6 parts 5,880 words 38,575 views 5.0 stars (12 votes)
• Changr pill party by matt1008  [  ]  Campus alpha-male Nick plans an unusual party for his buddies, having got hold of a round of Changr pills that produce temporary, unknown, and not always desirable transformations.  •Cock Growth •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Size Decrease •Size Increase •Inflation •App  Added Jul 2015 6 parts 10,718 words 38,553 views 4.5 stars (24 votes)
• John the wizard by RdyRoger  [  ]  John is a wizard and likes helping out his friends—usually in ways that involve none-too-subtle increases in height, equipment size, and muscle.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Muscle Growth •Muscle/Strength •Foot Growth •Getting Handsomer •Gradual Change •Getting Taller •Size Increase •Getting Hairy •Suggestion •Witch/Warlock/Wizard •M/M  Added Dec 2017 Updated Sep 2019 7 parts 24,468 words 38,543 views 4.5 stars (22 votes)
• Coach Barker by Argenti  [  ]  Coach Travis Barker has a special gift, and when he shares this gift with Adam, change begins to unfold around them.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Cum •Straight to Gay •Muscle Growth •Muscle/Strength •Getting Taller •Giants •Plausible Size Difference •Size Increase •Infectious  Added May 2019 Updated Jun 2019 9 parts 18,987 words 38,354 views 4.9 stars (33 votes)
• Hulk by WBHunk  [  ]  An early encounter with a huge, muscular man presages transformations yet to come.  •Muscle Growth •Muscle Gut •Muscle/Strength •Destruction/Violence  Added Jul 2002 5 parts 8,751 words 38,343 views 4.4 stars (10 votes)
• Reece’s morph by Seth Peterson  [  ]  The power of absorption is a nightmare for Reece...until it produces some very big results.  •Muscle Growth •Muscle/Strength •Belly Growth •Plausible Size Difference •Size Increase •Getting Hairy •Getting Fatter •Vore •Absorption  Added Mar 2016 Updated Dec 2020 3 parts 13,638 words 38,325 views 4.4 stars (10 votes)
• Alpha Male by Josef Howard  [  ]  A gay man wakes one morning inside the body of the (formerly) straight star-spangled super-hero AlphaMale. Everything is terrific until AlphaMale’s studly sidekick finds out his body is inhabited by an imposter.  •Muscle Growth •Muscle/Strength •Superhero/Supervillain  Added Jul 2002 5 parts 15,096 words 38,195 views 5.0 stars (7 votes)
• My big fat gay story by Your Name Here  [  ]  Henry has Jake over for dinner, and dessert might have a li’l extra kick to it.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Getting Handsomer  Added Jul 2006 1,183 words 38,082 views 3.7 stars (6 votes)
• The blue banana by BRK  [  ]  Mike unknowingly eats an artifact of the universe.  •Always Hard •Cock Growth •Huge Cock •Self-suck •Muscle Growth •Muscle/Strength •Size Increase •Suggestion •Complete •Series •M/M  Added Jan 2015 3,507 words 38,065 views 4.7 stars (50 votes)
• Moocows by Meddler Incs  [  ]  Cody's world is turned upside down when he is faced with a twisted coach and his followers.  •Cum Milking •Nipple Emissions •Muscle Growth •Muscle/Strength •Human to Animal/Anthro •Nonconsensual change •Hypnosis •Mind Control •M/M/M/...  Added Jan 2017 Updated Jul 2022 9 parts 18,667 words 37,903 views 4.8 stars (36 votes)
• The djinn by hyperboi  [  ]    •Cock Growth •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Incest •Brothers •Twins •Djin/Jinn/Genie  Added Dec 2012 8 parts 14,201 words 37,877 views 4.9 stars (20 votes)
• Muscle worship by piotrpjs  [  ]    •Straight to Gay •Muscle Growth •Muscle/Strength •Muscle Worship  Added Jan 2006 2,484 words 37,754 views
• Titanification by JayPat  [  ]    •Huge Cock •Hyper Strength •Muscle Growth •Muscle Theft •Muscle/Strength •Muscle Worship •Giants •Size Increase •Destruction/Violence  Added Oct 2012 8 parts 29,739 words 37,742 views 4.5 stars (12 votes)
• Chris olympus by FanTCMan  [  ]    •Cock Growth •Straight to Gay •Muscle Growth •Muscle/Strength •Getting Hairy •Age Difference •Incest •Father/Son  Added Dec 2002 3 parts 9,167 words 37,673 views 4.5 stars (21 votes)
• The new associate by Tym Greene  [  ]  Zhu is looking forward to his first day a new architectural firm, sure the way he grows—and makes other people grow just from being around him—will make things very interesting.  •Cock Growth •Huge Cock •Hyper Cock •Muscle Growth •Muscle/Strength •Public Nudity •Size Increase •Tongue Growth •Father/Son •Anthro/Furry •M/M •M/M/M  Added May 2015 Updated Dec 2020 3 parts 12,564 words 37,673 views
• Project Cerulean MX by The Pecman  [  ]  After Michael and Joey discover a secret base in the desert, they start to undergo some changes that are both unsetting and exciting.  •Cut to Uncut •Huge Cock •Muscle Growth •Muscle/Strength •Transformation •Size Decrease •Size Increase  Added Jun 2010 Updated May 2017 17 parts 54,138 words 37,343 views 4.4 stars (10 votes)
• U4ia gym by StevePwrBear  [  ]  The impressively-muscled owner of the gym Steve works out at is starting to take a personal interest in his progress.  •Cock Growth •Huge Cock •Hyper Cock •Self-suck •Muscle Growth •Muscle/Strength •Size Increase •Flying  Added Dec 2003 10 parts 38,596 words 37,324 views
• Bull’s gene by Opin  [  ]  Dean goes on a date with Henry, a huge professor, whose strength exceeds every expectation.  •Always Hard •Huge Cock •Hyper Cock •Always Cumming •Hyper Cum •Nipple Emissions •Public Orgasm •Hyper Strength •Muscle Growth •Muscle Gut •Muscle/Strength •Muscle Worship •Getting Taller •Giants •Plausible Size Difference •Size Increase •M/M  Added Aug 2020 Updated Oct 2022 8 parts 12,415 words 37,269 views 4.7 stars (24 votes)
• Matt grows up by Unknown  [  ]  Matt gets bullied by the bigger guys in school until he grows up—very, very suddenly.  •Muscle Growth •Muscle/Strength  Added Jul 2002 2 parts 4,133 words 37,237 views 4.0 stars (10 votes)
• Side effects 2000 by Braun1 and Z  [  ]  Mike and Jan begin an odyssey of muscle, growth, transformation, sex, and love.  •Always Hard •Cock Growth •Huge Cock •Hyper Cock •Self-suck •Muscle Growth •Muscle/Strength •Muscle Worship •Size Increase •Infectious  Added Jul 2002 31 parts 126,731 words 37,232 views 4.8 stars (8 votes)