Infectious

• 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  Added Dec 2003 8,642 words 79,377 views 5.0 stars (51 votes)
• An airplane parasite by SomeMuscleGuy  [  ]  After bumping into the wrong person at the airport, Michael is infected with a parasite that was on its way to be destroyed. This parasite only has one goal in mind: Growth. Massive Growth.  •Cock Growth •Ball Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Multi-abs •Hyper Muscle •Hyper Strength •Immobility •Muscle Growth •Butt Growth •Foot Growth •Transformation •Voice Deepening •Getting Taller •Giants •Size Increase •Destruction/Violence •Nonconsensual change •Infectious •Aliens •Symbiotes •M  Added Oct 2022 4,977 words 15,016 views 4.7 stars (25 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 201,090 views 4.6 stars (145 votes)
• All your wildest dreams by FloralSpaded  [  ]  When Walker has his hot friend Joe over for the night, things get out of hand and all of Walker’s wildest dreams come true.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Infectious  Added Jun 2018 2 parts 1,496 words 15,866 views 3.1 stars (19 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 42,628 views 4.4 stars (9 votes)
• Angelo and Adrian by WordShop  [  ]  Genius Angelo and sweet Adrian are both scarred by their pasts. Angelo has to accept change in his life, and accidentally, without intending it, Adrian is forced to accept a new life for which he is not at all prepared.  •Cock Growth •Muscle Growth •Muscle/Strength •Gradual Change •Hyper Pheromones •Infectious •M/M  Added Oct 2017 Updated May 2018 9 parts 43,220 words 24,188 views 4.5 stars (8 votes)
• At the cafeteria by BRK  [  ]  Jordan meets up with his friends at the cafeteria very late one night before midterms. They end up making a game of passing around Ethan’s ancient-recipe birthday liqueur and telling strange rumors about each other, with some unintended consequences.  •Cock Growth •Huge Cock •Multicock •Muscle Growth •Muscle/Strength •Getting Handsomer •Retcon •Suggestion •Infectious •Immortality •M/M •M/M/M  Added Jun 2015 3 parts 8,362 words 29,246 views 4.7 stars (42 votes)

• Bear’s den by Pfefferooney  [  ]  David is a small university student and he wants nothing more than to be, and be with, an enormous man. On a fateful day, he stumbles upon someone who can make his dream come true.  •Cock Growth •Cockfucking •Huge Balls •Huge Cock •Hyper Cock •Nipple Emissions •Muscle Growth •Muscle/Strength •Belly Growth •Size Increase •Getting Hairy •Infectious •M/M  Added Mar 2019 Updated May 2019 3 parts 9,022 words 32,228 views 4.8 stars (14 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 67,637 views 4.7 stars (39 votes)
• The best instructions are those that are clearly stated by Ziel  [  ]  Marty talks his super smart friend into whipping him up a special potion that will help with his little problem.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Infectious  Added Jun 2016 5,194 words 19,776 views 5.0 stars (10 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 42,121 views 4.4 stars (7 votes)
• The book of desires by SomeMuscleGuy  [  ]  After stealing a corrupted book at the gym, Michael is left growing uncontrollably by a Symbiotic Demon that only wants to swell its victims with the most size possible. But even the demon underestimates just how gigantic Michael wants to become.  •Cock Growth •Huge Balls •Ball Growth •Huge Cock •Hyper Cock •Hyper Cum •Public Orgasm •Multi-abs •Addiction •Hyper Muscle •Hyper Strength •Immobility •Muscle Growth •Muscle Worship •Public Nudity •Butt Growth •Foot Growth •Transformation •Voice Deepening •Getting Taller •Giants •Size Increase •Destruction/Violence •Nonconsensual change •Infectious •Aliens •Symbiotes •Complete •Stories with Images •M  Added Dec 2022 7,676 words 9,834 views 4.9 stars (8 votes)
• The breakthrough by Gigantic Mr.B  [  ]  One lapse in concentration sets off an unstoppable chain of events for an 18-year-old lab intern, Ben.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cum •Hyper Muscle •Hyper Strength •Muscle Growth •Butt Growth •Gradual Change •Getting Taller •Size Increase •Infectious •M/M  Added Apr 2022 Updated Sep 2022 5 parts 18,273 words 25,793 views 4.8 stars (38 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 80,627 views 4.8 stars (39 votes)

• The Change continues by Richard Jasper  [  ]  The Change is unstoppable, spreading rapidly through the gay male population, while those who first experienced it revel in their increasingly wild transformation.  •Cock Growth •Huge Cock •Muscle Growth •Getting Taller •Size Increase •Nonconsensual change •Infectious •Series  Added Apr 2020 6 parts 6,405 words 10,608 views
• Changes in Bigby Heights by NBCK99  [  ]  Alex Stevens has always been shy, being the only boytaur in Bigby Heights, but Jesse helps bring him out of his shell. But after their first encounter, reality seems to shift.  •Always Hard •Cock Growth •Huge Cock •Self-suck •Multi-abs •Multicock •Boytaur •Four Legs •Multiarm •Multilimb •Muscle Growth •Muscle/Strength •Getting Taller •Retcon •Infectious •M/M •M/M/M  Added Jun 2010 Updated Sep 2010 3 parts 5,173 words 23,828 views 4.7 stars (21 votes)
• Chat transcript: More than plenty by BRK  [  ]  Two guys chatting about extras end up giving each other the works.  •Multicock •Multilimb •Replication •Size Increase •Infectious •All Dialog •M/M  Added Nov 2014 2,780 words 7,647 views 5.0 stars (7 votes)
• A Christmas wish by Buck Reams  [  ]  Writing out your fantasies can have practical consequences, if you do it on a scrap of paper you forgot came from a magical tome.  •Cock Growth •Huge Balls •Huge Cock •Nipcocks •Hyper Cum •Nipple Emissions •Muscle Growth •Muscle/Strength •Transformation •Size Increase •Getting Hairy •Nonconsensual change •Infectious •Christmas •M/M  Added Dec 2019 1,975 words 17,406 views 4.8 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 37,357 views 4.9 stars (34 votes)
• Containment breach by SomeMuscleGuy  [  ]  After Kalos experiences a suit malfunction while working with a Radioactive Material at work, he is left growing at a quickening rate to sizes that nobody ever thought was possible, and its contaminated effects are spreading too fast to be stopped.  •Always Hard •Cock Growth •Ball Growth •Huge Balls •Huge Cock •Hyper Cock •Self-suck •Cum Milking •Always Cumming •Hyper Cum •Nipple Emissions •Public Orgasm •Extra digits •Multi-abs •Multiarm •Addiction •Hyper Muscle •Hyper Strength •Immobility •Muscle Growth •Muscle Gut •Muscle Worship •Public Nudity •Butt Growth •Belly Growth •Increased Libido •Transformation •Voice Deepening •Getting Taller •Giants •Forced Growth •Size Increase •Getting Hairy •Nonconsensual change •Rubber/Latex •Infectious •Complete •M  Added Mar 2023 10,572 words 4,949 views 4.5 stars (10 votes)
• Contamination by RdyRoger  [  ]  After his dick came in contact with an experimental substance, high schooler Vincent starts slowly getting bigger… first in his crotch and then other places, too. Thomas, a tall, handsome jock, likes teasing him about it at every opportunity.  •Cock Growth •Huge Balls •Huge Cock •Muscle Growth •Muscle/Strength •Gradual Change •Getting Taller •Size Increase •Getting Hairy •Infectious •t/t  Added Jul 2019 6,135 words 23,520 views 4.6 stars (19 votes)
• Crotchmania by Alex Anders  [  ]  A lucky porn star gets to partake of the newest fad.  •Crotchhead •Transformation •Mouthcock •Infectious  Added Aug 2021 1,672 words 3,785 views
• Curse room by BRK  [  ]  As the landlord’s son, Joey gets to deal with abandoned apartments and whatever might be in them. Usually it’s just junk; but the guy that skipped on unit 12E was deeply weird, and the way he’d looked at Joey before was more than a little scary.  •Cock Growth •Huge Balls •Huge Cock •Multi-abs •Multiarm •Multilimb •Muscle Growth •Getting Taller •Plausible Size Difference •Infectious •M/M  Added Apr 2022 2,828 words 5,473 views 4.4 stars (9 votes)
• Cursed to swell with cum by BigManBigBelly  [  ]  Max, like so many others, is powerless to resist Damien’s charm and blessed to be stretched open by his enormous meat. But his seed proves more potent than Max could have imagined… And possibly more than he can handle.  •Cum inflation •Cum Milking •Hyper Cum •Nipple Emissions •Immobility •Belly Growth •Size Increase •Getting Fatter •Infectious •Supernatural •M/M  Added Mar 2022 2,974 words 11,405 views 4.0 stars (6 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 8,169 words 55,082 views 4.3 stars (27 votes)
• Don’t cum by LordTronimator  [  ]  A world doomed by those who find themselves unable to stop cumming once they start, recounted by an innocent victim.  •Hyper Cum •Nonconsensual change •Infectious •Horror  Added Sep 2020 1,471 words 9,428 views 4.0 stars (5 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  Added May 2013 Updated Jun 2013 5 parts 14,943 words 54,620 views 4.6 stars (27 votes)
• The expedition by BRK  [  ]  An archaeologist and his research assistant, joined at the last minute by a jock desperate to boost his GPA, embark on a preliminary exploration of a mysterious Aegean island.  •Always Hard •Cock Growth •Huge Cock •Multicock •Multihead •Boytaur •Four Legs •Lots of Legs •Multiarm •Multileg •Multilimb •Three Legs •Multitongue •Replication •Stacking •Hyper Strength •Muscle Growth •Muscle/Strength •Always Shirtless •Increased Libido •Getting Taller •Giants •Plausible Size Difference •Size Decrease •Size Increase •Tongue Growth •Age Difference •Infectious •Merging •Shared Body •Centaurs •M/M •M/M/M  Added Jul 2021 Updated Oct 2022 16 parts 36,524 words 16,596 views 4.9 stars (16 votes)

• Field agent by BRK  [  ]  Special agents Adkins and Barber interview a rancher in relation to their current case. There’s something odd about the handsome Latino, though—starting with the fact that he won’t get down off his horse.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Cum •Multicock •Boytaur •Four Legs •Multiarm •Multileg •Multilimb •Replication •Muscle Growth •Public Nudity •Size Increase •Incest •Twins •Infectious •Centaurs •M/M •M/M/M  Added Apr 2020 Updated Nov 2020 2 parts 5,236 words 9,783 views 4.9 stars (20 votes)
• Frat crisis by BRK  [  ]  Jacob returns to his frat after a week away to find it stinking of sex and full of guys a lot bigger than he remembered them being.  •Always Hard •Cock Growth •Huge Balls •Huge Cock •Hyper Cum •Straight to Gay •Pec Fucking •Muscle Growth •Muscle/Strength •Increased Libido •Getting Handsomer •Gradual Change •Voice Deepening •Getting Hairy •Nonconsensual change •Infectious •Complete •M/M •M/M/M •M/M/M/...  Added Jun 2022 3,917 words 10,546 views 4.8 stars (20 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 99,890 views 4.3 stars (26 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 •M/M •M/M/M •M/t •t/t •t/t/t  Added Nov 2002 33 parts 33,508 words 46,689 views 4.9 stars (24 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  Added Jan 2007 4 parts 7,144 words 38,651 views 4.7 stars (21 votes)
• Growing pains by Anonymous  [  ]    •Cock Growth •Muscle Growth •Muscle/Strength •Infectious  Added Jul 2002 4 parts 4,674 words 22,875 views 4.4 stars (5 votes)
• Gym maniac over his head by MuscularEmperor  [  ]  Alexander discovers that the sweat and sperm of bodybuilders affects his own body, which begins a dangerous and destructive obsession.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Muscle •Muscle Growth •Muscle/Strength •Size Increase •Destruction/Violence •Nonconsensual change •Rape •Infectious  Added Jan 2020 3,322 words 13,494 views 3.6 stars (17 votes)
• Gym parasite by Aphon  [  ]  When a failed experimental piece of parasite goop finds itself in a gym, it must spread itself quickly or die. Its means of transmission has some huge side effects, whether you like it or not…  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Straight to Gay •Nonconsensual change •Infectious •M/M  Added Dec 2019 1,711 words 18,487 views 4.6 stars (25 votes)

• Huge changes: Book two by RdyRoger  [  ]  Jason and Todd decide to help Mason, not suspecting that Mason will get an extra helping of wishes, or that Mason’s fantasies of love and growth will start affecting more than just his partners.  •Cock Growth •Huge Balls •Huge Cock •Muscle Growth •Muscle/Strength •Plausible Size Difference •Size Increase •Getting Hairy •Nonconsensual change •Infectious •Series  Added Dec 2017 2 parts 9,859 words 18,150 views 4.9 stars (8 votes)
• Hulk hunter by JayPat  [  ]  Hunter has dedicated his life to tracking and neutralizing the hundreds of huge-growing hulks that have been terrorizing small towns for twenty years now, and he’s damn good at what he does. But when he gets to his latest sighting, he finds things aren’t going the way they usually do.  •Cock Growth •Huge Cock •Hyper Cock •Multi-abs •Muscle Growth •Muscle/Strength •Transformation •Giants •Size Increase •Destruction/Violence •Nonconsensual change •Infectious •Series •M/M  Added Sep 2018 2 parts 11,052 words 18,783 views 4.6 stars (15 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 89,590 views 4.7 stars (29 votes)
• The hulk pill: Contagion 2 by Azerreza  [  ]  Having just been beaten up by his usual bully, Matt thought that this day couldn’t have started any worse. Especially since he had to meet his buddies, David and Ben at the mall. But he had absolutely no idea that this day would change everything and that, on the contrary, it would be the best day of his life...  •Hyper Cum •Hyper Muscle •Hyper Strength •Muscle Growth •Muscle/Strength •Increased Libido •Voice Deepening •Size Increase •Nanotech •Destruction/Violence •Infectious •Series •t/t  Added Jan 2023 Updated Feb 2023 6 parts 23,223 words 6,288 views
• The hulk pill: Contagion by Azerreza  [  ]  Awakened by his brother Mike, David got the surprise of his life when he discovered that his big brother was now... really big: 8 feet tall and probably several tons of muscle. Unfortunately he did not know more about what had happened to him, so he met his friends at the mall as planned. But during the day, he noticed that his clothes seemed to be getting tighter and tighter, including the new ones he had just bought that morning... David was unknowingly one of the first to be infected with what would quickly become a pandemic.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cum •Muscle Growth •Increased Libido •Transformation •Voice Deepening •Getting Taller •Plausible Size Difference •Size Increase •Nanotech •Destruction/Violence •Nonconsensual change •Infectious •Series •M  Added Jul 2022 Updated Sep 2022 4 parts 15,648 words 17,365 views 4.8 stars (10 votes)
• Hyper puberty by MartinMori427  [  ]  In a world where the majority of men undergo an explosive second puberty in their late teens or early twenties, Danny is nearing 22 with no signs of a change in sight. But on his college campus where every man around him is a muscle-bound giant, Danny slowly comes to realize that it’s only a matter of time before a late bloomer like him shows the gods on campus what a real titan looks like.  •Always Hard •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Self-suck •Hyper Cum •Public Orgasm •Multi-balls •Multicock •Hyper Muscle •Muscle Growth •Muscle/Strength •Public Nudity •Man Scent •Increased Libido •Transformation •Voice Deepening •Getting Taller •Plausible Size Difference •Size Increase •Getting Hairy •Hyper Pheromones •Infectious •M/M •M/M/M •M/M/M/...  Added Jul 2022 8,839 words 14,631 views 4.6 stars (19 votes)

• In the sack by Neltharion5  [  ]  Brian finds a magical backpack that uses magazines as fuel to transform him. Soon, he realizes that his enhancements are sexually contagious, making his sex partners hotter. What else will he discover about the magic sack?  •Huge Cock •Muscle Growth •Muscle/Strength •Infectious  Added Mar 2017 3,526 words 12,534 views 4.5 stars (8 votes)
• Incubus by CentaurQuinn  [  ]  Ken discovers his friend with benefits is more than he seems, and might be a solution to a problem at work.  •Cock Growth •Wings •Hyper Muscle •Muscle Growth •Transformation •Getting Taller •Inflation •Infectious •Incubus/Succubus •Supernatural •Immortality •Shapeshifting •M/M  Added Oct 2020 2,534 words 10,414 views 4.8 stars (34 votes)
• Incubus garage by Quick Master  [  ]  An incubus of the lower realms aims to corrupt all of the men working at a greasy local garage into incubi.  •Cock Growth •Huge Balls •Huge Cock •Nipple Emissions •Multicock •Straight to Gay •Muscle Breast •Muscle Growth •Muscle/Strength •Increased Libido •Transformation •Getting Taller •Plausible Size Difference •Size Increase •Human to Animal/Anthro •Tongue Growth •Hyper Pheromones •Infectious •Demons •Incubus/Succubus •Supernatural •M/M •M/M/M •M/M/M/...  Added Dec 2021 Updated Jan 2022 3 parts 15,288 words 10,853 views
• Induced transformation: a brief history by BRK  [  ]  A father explains to his son that back in his day, they didn’t have any of these fancy-schmancy apps with built-in retcon. Back then, if you changed someone, they changed, and everyone had to just suck it up and deal with it.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Cum •Replication •Muscle Growth •Age Regression •App •Retcon •Age Difference •Incest •Brothers •Father/Son •Nonconsensual change •Infectious •All Dialog •Complete •M/M •M/M/M/...  Added Jun 2020 2,248 words 10,859 views 4.9 stars (17 votes)
• Interview with the King of Dust by Betonhaus  [  ]  Jason Ramstaff, also known as the King of Dust, explains the strange growth effects of the extraterrestrial substance known as Dust—complete with a demonstration of exactly how he passes its effects on to others.  •Cock Growth •Huge Cock •Hyper Cock •Hyper Cum •Muscle Growth •Muscle/Strength •Plausible Size Difference •Size Increase •Nanotech •Dom/Sub •Infectious  Added Feb 2021 3,267 words 5,664 views
• It’s magic by TylerGermany  [  ]    •Transformation •Infectious  Added Apr 2014 2 parts 2,094 words 11,270 views

• Jake: hand-drawn giant by spacevlad  [  ]  Drawing massive, muscle-hunk football stars seems like a safe enough hobby—but what if your drawing takes on a life of its own?  •Huge Cock •Muscle Gut •Muscle/Strength •Size Increase •Infectious •M/M  Added Sep 2009 7 parts 11,792 words 30,873 views 4.7 stars (7 votes)
• Jizzer by Ziel  [  ]  Ethan drags his roommate Walt off to the woods on the outskirts of town to search for their mutual friend.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Hyper Muscle •Immobility •Muscle Growth •Muscle/Strength •Giants •Size Increase •Infectious •Horror •M/M  Added Oct 2021 2,426 words 9,558 views 4.3 stars (9 votes)
• The journal by Braun1  [  ]  An ordinary college guy finds himself changing after a steamy encounter with a hunk named Brad, and decides to start documenting everything that’s happening to him.  •Cock Growth •Huge Balls •Huge Cock •Muscle Growth •Muscle/Strength •Size Increase •Getting Hairy •Infectious •M/M  Added Feb 2003 11 parts 30,474 words 27,188 views 4.8 stars (14 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 57,435 views 4.0 stars (15 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 293,837 views 4.6 stars (78 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 202,846 views 4.4 stars (33 votes)
• The minotaur equation by LeatherGryphon  [  ]  After Dale rewrites his DNA to become a hugely muscled, hugely hung minotaur, he discovers he hadn’t thought through his transformation.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Human to Animal/Anthro •Infectious •Anthro/Furry •Series  Added Jul 2014 7 parts 16,439 words 29,965 views 4.8 stars (25 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 92,445 views 4.3 stars (19 votes)
• Morphogenic steroids by RdyRoger  [  ]  Rod’s dad is working on a new technology that makes small things bigger and big things huge, with incredible implications for food supplies and beyond—only it only lasts for five hours. Rod figures being bigger for five hours… that would be pretty awesome.  •Cock Growth •Huge Balls •Huge Cock •Self-suck •Muscle Growth •Muscle/Strength •Increased Libido •Gradual Change •Getting Taller •Plausible Size Difference •Size Increase •Getting Hairy •Infectious  Added Oct 2019 4 parts 15,297 words 22,785 views 4.5 stars (13 votes)
• Moving forward by West  [  ]  When Brandon’s life takes an unexpected turn, his new roommate turns it around once again.  •Cock Growth •Huge Cock •Multicock •Straight to Gay •Muscle Growth •Getting Taller •Suggestion •Infectious •M/M  Added Feb 2022 1,334 words 4,258 views 4.4 stars (7 votes)

• The new guy by Also Known As  [  ]  A new employee causes pleasant though potentially cum-plicated problems.  •Always Hard •Cock Growth •Huge Cock •Hyper Cum •Addiction •Muscle Growth •Muscle/Strength •Getting Handsomer •Nonconsensual change •Infectious •M/M •M/M/M  Added Jun 2019 Updated Jul 2022 7 parts 33,687 words 29,883 views 4.8 stars (32 votes)
• New normal by brazboy  [  ]  Pedro is a Brazilian university student who returned to live with his roommates after one and a half years living with his family during the pandemics, but everything is not the same. His roommates Carlos and Henrique will not tell him what exactly has changed, wanting him to see it with his own two eyes.  •Cock Growth •Cockfucking •Huge Cock •Hyper Cock •Hyper Cum •Nipple Emissions •Muscle Breast •Muscle Growth •Getting Taller •Plausible Size Difference •Size Increase •Infectious •Set during the Pandemic  Added Jun 2021 5,662 words 10,081 views 4.7 stars (15 votes)

• Omega cursed: An alpha touch side story by Caliburn  [  ]  Best friends Ryan and Sam finally get to enjoy a much-anticipated camping trip. However, Sam has being acting odd ever since they crossed paths with that man in the gas station. Maybe the weird tattoo that suddenly appeared on Sam’s buttcheek has something to do with it.  •Cock Growth •Huge Balls •Huge Cock •Addiction •Straight to Gay •Muscle Growth •Muscle/Strength •Man Scent •Increased Libido •Foot Growth •Getting Handsomer •Gradual Change •Voice Deepening •Getting Taller •Size Increase •Getting Hairy •Nonconsensual change •Rape •Hyper Pheromones •Infectious •Series •M/M  Added Jun 2022 8,604 words 8,755 views 4.7 stars (18 votes)

• Patient zero by SomeMuscleGuy  [  ]  After exploring a crashed meteorite, Tim and Kyle are left growing uncontrollably. The hornier they get, the larger they grow. But what happens when growth itself makes them horny?  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Always Cumming •Hyper Cum •Public Orgasm •Multi-abs •Addiction •Hyper Muscle •Hyper Strength •Immobility •Muscle Growth •Public Nudity •Butt Growth •Increased Libido •Foot Growth •Transformation •Voice Deepening •Getting Taller •Giants •Plausible Size Difference •Size Increase •Nonconsensual change •Infectious •Complete •M/M  Added Nov 2022 Updated Dec 2022 3 parts 12,646 words 19,027 views 4.6 stars (19 votes)
• Porn can be healthy by Egi  [  ]  Zack is a healthy, horny young man who, like any other boy, likes to look at porn. Always one for novelty, Zack comes across the perfect website for him and his needs!  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Social Media •Infectious •M  Added May 2017 2 parts 8,693 words 26,499 views 4.9 stars (41 votes)

• Quarantined by MuscleNexus  [  ]  Devon is excited to hear his lover is returning from his overseas deployment early, after escaping the outbreak of a strange virus that put the rest of his team in quarantine. Only, Scott doesn’t seem to be quite himself…  •Muscle Growth •Muscle/Strength •Nonconsensual change •Infectious  Added Aug 2018 1,870 words 10,052 views 4.9 stars (15 votes)

• The radiation zone by SomeMuscleGuy  [  ]  After going off the beaten path to explore an abandoned military base, Alex is involved in an incident that leaves him contaminated with radioactive material, and he won’t stop growing until he escapes.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Hyper Muscle •Hyper Strength •Immobility •Muscle Growth •Muscle/Strength •Butt Growth •Increased Libido •Foot Growth •Gradual Change •Transformation •Voice Deepening •Getting Taller •Giants •Size Increase •Nonconsensual change •Infectious •M  Added Aug 2022 3,606 words 10,666 views 4.7 stars (26 votes)
• Resolutions: King factory by BRK  [  ]  The manager of a small, forgotten factory gets a sudden visit from the son of the conglomerate that owns his plant. Not only is he taking over, it seems, but he’s insistent on maximizing profit—even to the point of reviving production on that one sweetener everyone knows is a joke.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Hyper Cum •Increased Libido •Infectious •Complete •Series •M/M  Added Mar 2022 2 parts 6,615 words 4,307 views 3.6 stars (9 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 75,439 views 3.9 stars (55 votes)
• Santa’s big surprise by Silverfox Dad  [  ]  Jeremy has not only been obsessed with Santa, he's seen him and knows he's real. So when a friend at the gym gives him a muscle-growth supplement meant to give him confidence enough to talk to his beautiful bodybuilder crush Marco, Jeremy decides instead to give Santa a gift of his own.  •Muscle Growth •Muscle/Strength •Size Increase •Infectious •Christmas •Series •M/M  Added Jan 2017 3 parts 7,594 words 17,584 views 4.9 stars (11 votes)
• Sebastian by TreborNawoc  [  ]  Sebastian’s experiment to transform himself into a multi-hunk worked, and then some! He can’t wait to show off the results to his best friend, Gavin.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Self-suck •Extra Mouths •Multi-abs •Multi-balls •Multicock •Boytaur •Four Legs •Lots of Legs •Multiarm •Multileg •Multilimb •Three Legs •Multitorso •Muscle Growth •Increased Libido •Transformation •Getting Taller •Plausible Size Difference •Size Increase •Tongue Growth •First Time/Virgin •Infectious •Series •M/M  Added Dec 2021 Updated Nov 2022 4 parts 8,673 words 9,867 views 5.0 stars (256 votes)
• Seeing stars by OneLuckyGuy89  [  ]  12 young, muscular and beautiful men have begun protecting Starlight City. Adam Berry has been having weird dreams lately and has a feeling that his life is about to change.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Gay to Straight •Muscle Growth •Muscle Gut •Getting Taller •Size Increase •Getting Hairy •Incest •Twins •Nonconsensual change •Infectious •Merging •Superhero/Supervillain  Added Mar 2020 Updated May 2020 2 parts 8,520 words 9,781 views 4.3 stars (7 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 36,745 views 4.8 stars (8 votes)
• 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 40,428 views 4.1 stars (19 votes)
• SNU-5|VU by DracumSum  [  ]  Nathan and Nick have to complete a biochem project on the metahumans caused by the failed SNU-5 nanobot project—only they don’t know any, and the brief random encounter Nathan had at a bus stop the other day won’t help them. Or will it?  •Cock Growth •Cut to Uncut •Huge Balls •Huge Cock •Hyper Muscle •Muscle Growth •Increased Libido •Foot Growth •Gradual Change •Transformation •Getting Taller •Giants •Plausible Size Difference •Size Increase •Hairless •Nanotech •Infectious •Set in the Future •Hyper Anus •M/M  Added Feb 2022 6,053 words 6,807 views 5.0 stars (5 votes)
• The spectacular growing saga by West  [  ]  A collection of brief stories about guys discovering their dream bodies in various ways.  •Cock Growth •Cock Shrinking •Huge Cock •Hyper Cock •Hyper Cum •Multi-abs •Multicock •Multiarm •Multipec •Hyper Strength •Muscle Growth •Muscle Theft •Getting Taller •Size Decrease •Incest •Brothers •Triplets •Infectious •Androids/Cyborgs •M/M •M/M/M  Added Mar 2022 Updated Apr 2022 6 parts 7,557 words 9,693 views 4.6 stars (14 votes)
• Support line by BRK  [  ]  Customers interacting with the reps at the Metabods Support Line tend not to get the service they’re expecting—though it is always above and beyond.  •Always Hard •Cock Growth •Huge Cock •Hyper Cock •Self-suck •Multicock •Multiarm •Multilimb •Multitorso •Replication •Detachable •App •Infectious •All Dialog •M/M  Added Feb 2012 Updated Mar 2021 4 parts 12,557 words 28,470 views 4.8 stars (13 votes)
• Sweat it out by Egi  [  ]  Working out is hard enough when you're scrawny and shy. Sometimes you need a partner to help fill you out with some unconventional methods.  •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Man Scent •Infectious •M/M  Added Jun 2017 2 parts 8,184 words 15,638 views 4.8 stars (12 votes)

• Tales of Atlantis by 10tacles  [  ]  (Updated text, 30 January) Devin washes ashore on the legendary isle of Atlantis, and quickly finds himself in the company of a handsome local. But it would seem the stories of Atlantis’s wonders omitted a number of lurid details...  •Cock Growth •Cock Vore •Cockfucking •Huge Balls •Ball Growth •Huge Cock •Hyper Cock •Self-suck •Hyper Cum •Public Orgasm •Multi-balls •Multicock •Always Shirtless •Public Nudity •Male Pregnancy •Giants •Infectious •Goo People •Anthro/Furry •Fantasy Realm •Immortality •Stories with Images •M/M  Added Jan 2023 11,595 words 3,475 views 4.8 stars (12 votes)
• There’s something about Billy by Ziel  [  ]  Billy seems like perfectly normal, good-looking guy from the waist up. But there’s something going on inside Billy’s weird, super-baggy pants, and Duke and Kevin were determined to find out what it was.  •Cock Growth •Huge Balls •Huge Cock •Hyper Cock •Multi-balls •Multicock •Infectious  Added Feb 2017 5,442 words 15,324 views 5.0 stars (10 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 53,225 views 5.0 stars (9 votes)
• Transform: After math by Also Known As  [  ]    •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 9,418 words 9,539 views
• Transform: Auto upgrade by Also Known As  [  ]    •Huge Cock •Huge Cock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Man Scent •Man Scent •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 10,147 words 9,055 views 5.0 stars (5 votes)
• Transform: Bully boy by Also Known As  [  ]  Sometimes a homophobic bully picks on the wrong guy.  •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 11,872 words 13,937 views 3.6 stars (5 votes)
• Transform: Coffee and cream by Also Known As  [  ]    •Cock Growth •Huge Cock •Muscle Growth •Muscle/Strength •Infectious •Series  Added Jan 2014 3,172 words 9,678 views
• Transform: Coffee break by Also Known As  [  ]  Marcus’s favorite espresso dude at the coffee shop looks a little different today.  •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 9,093 words 9,539 views
• Transform: Daniel by Also Known As  [  ]    •Huge Cock •Muscle Growth •Muscle/Strength •Infectious •Series  Added Jan 2014 4,735 words 11,135 views
• Transform: Fine art by Also Known As  [  ]    •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 6,999 words 6,981 views
• Transform: Friends in need by Also Known As  [  ]  Franklin refuses to let his best friend Albert induct him into the Muscle Club, despite the awesomeness of Albert’s body and the control over it he’s gained. Albert agrees to leave him alone. But Franklin is feeling these bursts of powerful arousal coursing through him as they’re playing video games together, and he knows Albert’s doing it on purpose…  •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series •M/M  Added Jan 2014 6,594 words 10,570 views 5.0 stars (6 votes)
• Transform: Morning wood by Also Known As  [  ]    •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 8,923 words 13,546 views 5.0 stars (5 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 43,861 views 4.1 stars (17 votes)
• Transform: Muscle club by Also Known As  [  ]    •Huge Cock •Huge Cock •Self-suck •Self-suck •Hyper Cum •Hyper Cum •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 9,869 words 14,505 views
• 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 40,703 views
• Transform: Phone sex by Also Known As  [  ]  Converting a guy to be one of the Transformed is easy enough in person. But what about over the phone?  •Cock Growth •Cock Growth •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series •M/M •M/M/M  Added Jan 2014 5,573 words 11,399 views 5.0 stars (6 votes)
• Transform: Promises, promises by Also Known As  [  ]    •Huge Cock •Huge Cock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 2 parts 17,445 words 9,647 views
• Transform: Teacher’s pet by Also Known As  [  ]  As students go, Raul is pretty cocky, and with good reason—even at detention with Mr. Titus and the rest of the Muscle Club.  •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 8,100 words 11,458 views 5.0 stars (5 votes)
• Transform: Teen Truman by Also Known As  [  ]    •Huge Cock •Huge Cock •Self-suck •Self-suck •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Voice Deepening •Voice Deepening •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 7,238 words 21,878 views
• Transform: The athletic supporter by Also Known As  [  ]    •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Size Increase •Size Increase •Infectious •Infectious •Series •Series  Added Jan 2014 10,070 words 10,632 views
• Transform: The college years by Also Known As  [  ]  The sexy teens affected by the Transform ability wreak even more havoc at college with their amazing and irresistible growth-at-will double-hung dream bods.  •Cock Growth •Cock Growth •Huge Cock •Huge Cock •Multicock •Multicock •Muscle Growth •Muscle Growth •Muscle/Strength •Muscle/Strength •Muscle Worship •Muscle Worship •Man Scent •Man Scent •Size Increase •Size Increase •Infectious •Infectious •Flying •Flying •Series •Series  Added Jan 2014 12 parts 80,145 words 20,573 views 4.7 stars (12 votes)

• Unbound Beast Inc. by an0n12  [  ]  Jeff is working out late at night and encounters Ian who has substantially grown since he last saw him; Ian decides to be cocky and show off/seduce Jeff not taking into account the how effective the drug he's taking would be when he cums. Will it be too much for Ian or will he let his arrogance and lust get the better of him?  •Huge Cock •Muscle Growth •Muscle/Strength •Infectious  Added Mar 2017 4,024 words 13,558 views 4.4 stars (18 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  Added Jan 2016 Updated May 2016 2 parts 6,753 words 38,583 views 4.7 stars (24 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 40,815 views 4.8 stars (13 votes)