The blue smoothie by BRK Yuri, a personal trainer, is already having a rushed and stressful day when he meets his first client, a young nurse who looks like he’s never lifted so much as a paper clip. On top of that, the banana he grabbed from the stash at the gym’s juice bar to make his morning protein shake was blue for some reason. 3,238 words Added Jun 2020 15k views 4.8 stars (25 votes) •Cock Growth•Huge Balls•Other Mental Changes•Hyper Strength•Muscle Growth•Muscle/Strength•Suggestion•Superhero/Supervillain•Flying•Complete •M/M
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. 7 parts 22k words Added May 2014 Updated 6 Mar 2015 57k views 4.6 stars (38 votes) •Cock Growth•Huge Cock•Muscle Breast•Muscle Growth•Muscle/Strength•Dom/Sub•Sex-Slave•Dildos/Toys •M/M•M/M/M
Gym of 1000 studs by LorneLyon Somewhere there is a special gym, a gym that will allow you to overcome your problems and give you something in return. One day Tobias is on the run for his bullies when he discovers the Gym of 1000 studs. He decides to go in and ends up changing his life. 2 parts 5,277 words Added Mar 2020 5,930 views 4.3 stars (3 votes) •Muscle Growth•Space Travel•Time Travel•Supernatural •M/M
Hyper active imagination, Part 2 by Ziel Enough time has passed without any new incidents for James to have mostly stopped worrying about how he hulked out the TA, so he isn’t expecting anything strange when he hits the gym with his friend Lyon. 5 parts 21k words Added Oct 2013 Updated 26 Mar 2022 61k views 4.6 stars (29 votes) •Cock Growth•Hyper Cock•Muscle Growth•Muscle/Strength•Public Nudity•Getting Taller•Giants•Size Increase•Christmas•Valentine’s Day•Complete •M/M
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. 4 parts 8,109 words Added Jul 2002 55k views 4.3 stars (16 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Lycra/Spandex •M/M
My bodyguard by Richard Jasper “Worthless” Worthington High School sophomores Roger Jensen and Nick Delios bond when the latter saves the former’s scrawny ass from the class bully, Ralphie Peters. Their burgeoning affection and academic accomplishments are only exceeded by their ridiculous muscle growth. 4 parts 10k words Added Aug 2020 7,534 views 5.0 stars (8 votes) •Cock Growth•Huge Cock•Hyper Strength•Muscle Growth•Muscle/Strength•Gradual Change •t/t
Next level love: Location enabled by Eclipse Mateo’s been feeling small lately, but his new app is all he needs for a boost. 6,731 words Added Sep 2020 6,969 views 4.9 stars (8 votes) •Cock Growth•Huge Cock•Other Mental Changes•Muscle Growth•App
Nightmare at the Pump House Gym by UberPump 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. 7 parts 27k words Added Oct 2020 Updated 8 Jul 2023 42k views 4.8 stars (16 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Public Orgasm•Hyper Muscle•Pec Fucking•Immobility•Muscle Growth•Muscle/Strength•Forced Growth•Halloween •M•M/M•M/M/M•M/F
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. 3 parts 12k words Added Jan 2017 Updated 5 Nov 2022 49k views 4.8 stars (27 votes) •Huge Cock•Nipcocks•Nipple Emissions•Muscle Breast•Muscle Growth•Muscle Gut•Muscle/Strength•Belly Growth•Size Increase•Christmas •M/M
The source: a Henry Himura mystery by Proteus Henry is hired to track down a missing young man named Samuel Roth. The trail leads him to a gym and a mysterious serum called Hard-T. 11 parts 16k words Added Aug 2013 24k views 4.9 stars (15 votes) •Cock Growth•Huge Cock•Getting Dumber•Muscle Growth•Muscle/Strength•Gradual Change•Plausible Size Difference•Hair Growth/Getting Hairy •M/M
Transform: The college years, Part 3 by Also Known As With all visibility of the trumans having been strangely muted worldwide and the Muscle Club feeling like a strange dream, Tim decides to visit the Transform Gym. 12 parts 80k words (#35) Added Jan 2014 24k views 4.8 stars (16 votes) •Cock Growth•Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Muscle Worship•Man Scent•Size Increase•Infectious•Flying •M/M•M/M/M
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. 10 parts 39k words Added Dec 2003 39k views 4.8 stars (4 votes) •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Size Increase•Flying
|