Freaky muscle growth that's beyond even massive, and approaching immobility.
Related: Hyper Strength; Immobility; Muscle Breast; Muscle Growth; Muscle Gut; Muscle Theft; Muscle/Strength.
Child of: Muscle.
Top Stories: “Above average”; “Ad man”; “Male scent”; “A.I.”; “Alex in Wonderland”; “Summer research”; “The new job”; “Big men on campus”; “The heart is a muscle”; “Nightmare at the Pump House Gym”.
Recently Updated: “Nightmare at the Pump House Gym”; “The heart is a muscle”; “Changing fortunes”; “Vision space”.
43 stories found. Total word count: 499,715.
- A.I. by Corwin Cock CumMilking Addict HyMusc MuscUp Musc Worship Grad PSD SizeUp AI Viol Bond Andr M/M Tim’s homemade A.I. software decides to help him get huge. Added Dec 2013 11 parts 30,556 words 44,597 views 4.8 stars (29 votes)
- Above average by Ziel CockUp Cock HyCock HyCum HyMusc MuscUp Musc AssUp Retcon 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. Added Apr 2013 Updated Dec 2018 28 parts 130,435 words 219,624 views 4.5 stars (88 votes)
- The acolytes by Richard Jasper CockUp Cock HyCock HyMusc HyStr MuscUp Musc Taller SizeUp Hairier It all started with an arm-wrestling contest. Blond surfer god Mike Schnelling, 5’10”, 175 lbs., wanted to take me on. Which was fine but I had 50 lbs. on him, all muscle. We never could have imagined how it would all turn out! Added Aug 2020 7 parts 8,050 words 8,763 views 4.3 stars (9 votes)
- Ad man by FanTCMan CockUp Cock HyCock HyCum 2Gay HyMusc MuscUp Musc Hairier Nonc Infect 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. Added Dec 2003 8,642 words 63,964 views 5.0 stars (30 votes)
- Alex in Wonderland by Anarchy A CockUp Balls Cock HyCock HyCum HyMusc MuscUp Musc SizeDn SizeUp Alex follows mysterious man into a forest, and quickly finds himself in a strange new world, deep below the ground. Added Jan 2016 Updated Apr 2017 3 parts 6,184 words 37,976 views 4.4 stars (39 votes)
- Grow gravity by Unknown CockUp HyCock Addict HyMusc MuscUp Musc Giant SizeUp Immort Added Aug 2003 3,249 words 24,394 views 4.2 stars (11 votes)
- Growing together by YungFrancis CockUp Cock HyCock HyMusc Immob MusBr MuscUp Musc PSD SizeUp Sammy’s one of a whole group of massive muscle freaks who spend all their time working out and dealing with being huge. He’s already too big for doorways, his husband, Tommy, is even bigger, and they want to keep growing. Added Dec 2018 2 parts 6,563 words 11,926 views 4.7 stars (7 votes)
- Gym maniac over his head by MuscularEmperor CockUp Cock HyCock HyMusc MuscUp Musc SizeUp Viol Nonc Rape Infect Alexander discovers that the sweat and sperm of bodybuilders affects his own body, which begins a dangerous and destructive obsession. Added Jan 2020 3,322 words 9,417 views 3.5 stars (15 votes)
- Hard5 by BRK CockUp Balls Cock HyCock NipC XHead XArms XPec Stack HyMusc MuscUp Musc Tf Hairier Just before his debut as a replacement performer in an up-and-coming boy band, Ian discovers they have a strange backstage ritual with some very unexpected effects. Added Jun 2021 4,125 words 2,266 views 4.7 stars (6 votes)
- The heart is a muscle by Mikeytron HyMusc HyStr MuscUp Gut Musc Grad PSD A muscle growth bildungsroman: shy small nerd meets his college roommate, who’s friendly, confident, and fucking huge. Growth occurs, both emotional and physical, over the course of their first year together. Added Jun 2021 Updated Jul 2021 6 parts 38,553 words 13,948 views 4.9 stars (49 votes)
- Hypno muscle: jock dreams by Douglas Benjamin Dumber HyMusc MuscUp MuscDn Musc Scent Tf Taller SizeDn SizeUp 2Inan Sugg Orcs Hypno Mind Toby and Liam have picked up a hypnotic audio tape that promises to grow their muscles. When they fall asleep to the hypnotic induction, they have a dream that seems all too real: Suddenly, they have to power to transform each other into big-muscled meatheads, flexing and posing for each other and talking like dumb jocks. Even more transformation is possible, but there is a catch. Added Jul 2019 4,333 words 11,007 views
- Male scent by Frank Easky CockUp Balls Cock HyCock HyCum HyMusc MuscUp Musc Scent Taller Giant SizeUp AgeDn Hairier Inc Bro Twins HyPher Infect Apprentice magician Sean’s potion exceeds his expectations, causing his personal musk to spread muscle growth to those who smell it. Added Jul 2002 2 parts 13,564 words 46,761 views 4.0 stars (15 votes)
- Muscle Mice From Mars by Mr. Mouse CockUp Balls Cock HyCum HyMusc MuscUp Musc SizeUp Viol Bond Alien Fur This is the story of a certain group of anthro alien biker mice and how they went from sexy, strong, and buff to hyper masculine and super strong with a little unintentional help from some old enemies. Added Oct 2019 2 parts 3,260 words 3,516 views
- My brother’s boyfriend by Richard Jasper Balls 2Gay HyMusc HyStr MuscUp Musc Taller SizeUp Inc Bro HyPher Hunky, straight Marine Kyle is gobsmacked to find out that his bigger, hotter baby brother has an even bigger, hotter boyfriend! Added Feb 2020 5 parts 8,843 words 11,333 views 4.1 stars (8 votes)
- The new job by hyperboi CockUp Cock HyCock HyMusc MuscUp Musc Grad SizeUp Inc Bro Out-of-work engineer Jake takes a job at an isolated mansion, where he’s overpaid for just guarding a gate and letting through mysterious trucks. He and his coworkers are getting slowly bigger and hornier, too, and all this seems really great except for a certain nagging doubt—and a terrifying warning from the hugest of his fellow guards. Added Aug 2014 8 parts 20,447 words 30,784 views 4.6 stars (37 votes)
- Nightmare at the Pump House Gym by UberPump CockUp Balls Cock HyCock HyCum HyMusc Immob MuscUp Musc Hallow A bodybuilder encounters a strange man at the local gym who forces him to experience his deepest desires first-hand. The growth is intoxicating, but there’s a price to pay he doesn’t see coming. Added Oct 2020 Updated Jul 2021 4 parts 14,464 words 10,401 views 4.9 stars (8 votes)
- No limits by Corwin CockUp Cock HyMusc HyStr MuscUp MuscDn Musc Worship There’s a secret serum that makes you super-muscled and super-strong, but what you do with that—that’s all you. Added Mar 2020 7 parts 21,446 words 13,015 views
- 600-pound intravenous waddlers by TitMorpher HyMusc MuscUp Musc 600-pound roid-gutted specimens live on intravenous feedings and waddle onto bodybuilding stages for exhibition. See what goes on at the shows and behind the scenes to keep these men at their circus freak proportions for exhibition and display. Added Mar 2020 1,643 words 3,752 views 3.7 stars (6 votes)
- Suction cups during Tit Man Competitions by TitMorpher HyMusc MusBr Musc Controversies continue in the world of Super Tit Man bodybuilding, as the muscle breast pecs and nips, and the methods for milking them in and out of competition, become ever bigger and more intense. Added Feb 2020 4,413 words 3,565 views
- Summer research by spacevlad CockUp Balls Cock HyCock Dumber Mental 2Gay HyMusc HyStr MuscUp Gut Musc Scent BellyUp Taller Giant PSD SizeUp Hairier Viol Slave 4th of Jul 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. Added Oct 2017 Updated Dec 2017 12 parts 28,541 words 32,042 views 4.8 stars (24 votes)
- Superman gets big by Richard Jasper HyMusc HyStr MuscUp Musc Super Perry White sends Clark Kent off to cover his first bodybuilding contest, prompting interesting developments! Added Nov 2020 8 parts 9,920 words 4,071 views 4.6 stars (5 votes)
- What’s it like by Richard Jasper CockUp Cock HyMusc HyStr MuscUp Musc Taller SizeUp Hairier AgeDiff “What’s it like” to be the world’s biggest, strongest, most muscular 17-year-old? To make hairy, bearded powerlifting muscle daddies look like little boys? To be the object of worship of all of your classmates? To have, well, you’ll have to read the rest to find out, won’t you? Added Jan 2021 1,441 words 5,139 views
- When I was still human by Richard Jasper CockUp Cock HyCock HyMusc HyStr MuscUp Musc Taller PSD SizeUp As a teen Roger was 6 feet tall and 300 pounds of solid muscle. Nearly 30 years later he’s in his early 40s—and he’s never stopped growing, in any dimension: height, weight, strength, dick. Is he still human? Added Nov 2020 3 parts 2,973 words 4,815 views