The four jocks book 2 by BRK The game has been passed on to a bunch of swim team hotties, who elect to play immersed in a hot tub. 2 parts 3,968 words Added Sep 2009 22k views 4.7 stars (7 votes) No comments yet •Cock Growth•Huge Cock•Multilimb•Replication•Muscle Growth•Muscle/Strength•Incest•Twins•Selfcest•Complete •M/M•M/M/M/...
The four jocks: Knights of the Round Table by BRK Disguised as a young knight, Merlin accompanies Arthur, Lancelot, and Gawain on a minor quest. Sheltering from bad weather in an abandoned castle leads them to a night of danger, transformations, and new connections. 5 parts 19k words Added Feb 2019 12k views 4.7 stars (10 votes) No comments yet •Cock Growth•Huge Cock•Multiarm•Multilimb•Muscle Growth•Muscle/Strength•Werewolves•Witch/Warlock/Wizard•Complete •M/M
Mutation, Part 2 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. 4 parts 9,583 words Added Jun 2010 Updated 27 Jul 2018 76k views 4.9 stars (21 votes) No comments yet •Cock Growth•Huge Cock•Hyper Cock•Multicock•Four Legs•Multiarm•Multileg•Multilimb•Three Legs•Multipec•Replication•Stacking•Selfcest
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. 23 parts 104k words (#25) Added Dec 2013 Updated 22 Feb 2025 128k views 4.7 stars (40 votes) No comments yet •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
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. 18 parts 50k words (#84) Added Jan 2012 73k views 4.9 stars (27 votes) No comments yet •Cock Growth•Huge Balls•Huge Cock•Self-suck•Muscle Growth•Dildos/Toys •M/M
Boytaur swim program by Bud Boytaurbody These swimmers can wear literally a pair of Speedos. 927 words Added May 2002 11k views 4.7 stars (3 votes) No comments yet •Boytaur•Four Legs•Multilimb•Wristfeet
Chuck, the size thief, Part 10 by spacevlad Chuck goes back to the gym and continues to grow, luring unsuspecting worshippers into the locker room to absorb their size⦠including Drew, an admirer in the wrong place at the wrong time, and Brant, a helpless swimmer. 16 parts 42k words Added Jun 2017 Updated 22 Dec 2017 145k views 4.6 stars (33 votes) No comments yet •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•Hair Growth/Getting Hairy•Getting Fatter•Inflation•Nanotech•Destruction/Violence•Nonconsensual change•Nonconsensual sex•Absorption •M/M
Cock boy conversions, Part 5 by CockTFBoi A gift of wish-power to a horny teen leads to some hot guys at school being turned into cock-creatures. 19 parts 14k words Added Mar 2014 51k views 3.8 stars (12 votes) No comments yet •Human to Cock•Multicock•Straight to Gay•Transformation•Size Decrease•Nonconsensual change •t/t•t/t/t...
The G, Part 5 by Braun1 Midnight, a pool, an ultra-man… and maybe some answers. 6 parts 43k words Added Mar 2013 38k views 5.0 stars (24 votes) No comments yet •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Hypnosis •M/M•M/M/M
The good freak, Part 25 by Also Known As Dr. Jack shares his pool with Kevin and Paul. 33 parts 34k words Added Nov 2002 57k views 4.9 stars (27 votes) No comments yet •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•t/t•t/t/t•M/t
Growth school, Part 4 by Writ Bro This year, the coaches have decided to try something new: a captains’ retreat—a whole weekend of sex and growth for the newly initiated junior captains. 12 parts 56k words (#71) Added Jun 2018 Updated 11 May 2019 69k views 4.7 stars (26 votes) No comments yet •Cock Growth•Huge Cock•Pec Fucking•Muscle Breast•Muscle Growth•Muscle/Strength•Dom/Sub•Restraints•Sex-Slave•Lycra/Spandex •M/M•M/M/M
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. 4 parts 8,133 words Added Oct 2015 Updated 20 Jan 2016 49k views 4.9 stars (11 votes) No comments yet •Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Djin/Jinn/Genie •t/t
Muscle milk tit freaks, Part 5 by TitMorpher Sunday is pool day at the muscleboy bodybuilding camp. 9 parts 27k words Added Sep 2011 Updated 13 Jun 2012 114k views 3.8 stars (8 votes) No comments yet •Nipple Emissions•Muscle Breast•Muscle Growth•Muscle/Strength•Muscle Worship•Stories with Images•Set in the Future •M/M
Puberty is a bitch, Part 10 by Lover Boy 2 When a second puberty is growing your junk, swim team practice can be a drag (figuratively, but also literally). 11 parts 15k words Added Sep 2009 186k views 4.3 stars (31 votes) No comments yet •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Gradual Change•Size Increase •t/t
The salt, Part 6 by RdyRoger Some time at the pool leads to some unplanned growth for Trav and his guys. 9 parts 36k words Added Jun 2010 94k views 4.8 stars (24 votes) No comments yet •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Muscle Worship•Increased Libido•Gradual Change•Getting Taller•Size Increase•Tongue Growth•Incest•Brothers
The swimming hole by JayPat When Matt laments the sadly unmuscled state of his young body, all he hears is that he has to put in the work. Only, his swimming buddy Jimmy seems to be getting muscles all on his own, and he’s not even hitting the gym… 8 parts 43k words Added Sep 2018 37k views 4.9 stars (15 votes) No comments yet •Muscle Growth•Muscle/Strength•Giants•Size Increase•Destruction/Violence•Nonconsensual change•Complete •t/t
X-Dream Makeover: Where’d he go?, Part 2 by Cris Kane A billionaire ropes a lowly accountant into going on a mysterious mission to Mr. Lee’s notorious shop. 2 parts 11k words Added Nov 2018 10k views 5.0 stars (3 votes) No comments yet •Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Transformation•Getting Taller•Nonconsensual change
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