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. 16 parts Added Jun 2012 156k views 4.7 stars (103 votes) 66k words (#43) •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...
A.I. by Corwin Tim’s homemade A.I. software decides to help him get huge. 11 parts Added Dec 2013 72k views 4.8 stars (43 votes) 31k words •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
Bull’s gene by Opin Dean goes on a date with Henry, a huge professor, whose strength exceeds every expectation. 8 parts Added Aug 2020 39k views 4.7 stars (25 votes) 12k words •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
Click bate by Dream Big Andy didn’t remember ordering this weird butt and cock pleasuring equipment, but, hey, it looked like it might be fun to play with… 26 parts Added Nov 2020 27k views 4.9 stars (34 votes) 23k words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Other Mental Changes•Increased Libido•Transformation•A.I.-Controlled Change•Dildos/Toys•Merging•Set during the Pandemic •M/M•M/M/M/...
Hollyville by Tereshky The sleepy town of Hollyville, Alabama finds that strange things are happening to some of its people. It’s one man’s job to find out, but is he prepared for the mystery, suspense, and life-altering changes to come? Are you? 9 parts Added Nov 2019 20k views 4.8 stars (20 votes) 44k words (#80) •Cock Growth•Huge Balls•Huge Cock•Prehensile Cock•Hyper Cum•Multi-abs•Multiarm•Multilimb•Multipec•Replication•Stacking•Wings•Muscle Growth•Muscle/Strength•Transformation•Size Increase•Selfcest•Tentacle•Horror •M/M
Magic eye by RdyRoger Once he found out the secret of magic growing things suddenly seemed really easy for Al, until the day he was startled by Turner while he was staring deep into his hot friend, Tony. 7 parts Added Aug 2019 20k views 4.8 stars (17 votes) 21k words •Cock Growth•Cock Shrinking•Huge Balls•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Getting Taller•Size Decrease•Size Increase•Lycra/Spandex •t/t
Massive musclemonsters, Part 2 by TonnyGiant Roger meets his new neighbors, three impressively muscled bodybuilders, just as his boss, Dr. Alejandro, experiences a very dramatic breakthrough with a serum designed to produce muscle growth and regeneration. 3 parts Added May 2018 20k views 4.7 stars (9 votes) 6,902 words •Huge Cock•Multi-abs•Muscle Growth•Muscle/Strength•Muscle Worship•Always Shirtless•Giants•Plausible Size Difference•Size Increase •M/M
Reality Pack by Thorn What happens when the program you’re working on for school has a downloadable mod? You investigate it of course! 15 parts Added Nov 2020 51k views 4.9 stars (38 votes) 79k words (#34) •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
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. 13 parts Added Nov 2013 40k views 4.7 stars (25 votes) 29k words •Cock Growth•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Gradual Change•Incest•Brothers •t/t•t/t/t
Seth’s life changing adventure by Navy Alpha Pup Seth has settled into his post-corps life, or thinks he has—until he meets a fellow ex-Marine who offers him everything he didn’t know he wanted. 10 parts Added May 2019 26k views 4.9 stars (22 votes) 37k words •Cock Growth•Cock Shrinking•Huge Balls•Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Man Scent•Voice Deepening•Destruction/Violence•Dom/Sub•Humiliation•Sex-Slave•Bodily Fluids•Alcohol •M/M
Stuff in the cellar by Charles Westfall Richard is already good-looking and abnormally hung when he discovers some alien equipment in the cellar of his new house—including a vat of goo that transforms him into someone even hotter and more hung. And there’s no way Richard’s keeping his new gifts to himself. 4 parts Added Jul 2002 22k views 5.0 stars (8 votes) 15k words •Cock Growth•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Pointy Ears•Size Increase •t/t•t/t/t
2525 Doubled Lane by TwinReplica After a long search, Lane has finally found his dream home, but finds there may be more to the house’s technology than meets the eye. 2 parts Added Jan 2022 2,285 views 5.0 stars (9 votes) 6,940 words •Replication•Selfcest•Metabods 25 •M/M•M/M/M/...