The big box by BRK Dave didn’t remember ordering anything from Metaboy. 3 parts 3,202 words Added Mar 2003 13k views 4.4 stars (9 votes) •Multicock•Multiarm•Multileg•Multilimb•Three Legs •M/M
What I learned on my vacation by BRK (Hint: it involves extra limbs and stuff.) 2 parts 2,038 words Added Jan 2006 12k views 5.0 stars (6 votes) •Multicock•Multilimb•Stretchy •M/M
A big year by Dancer Andy gets a big surprise when a fortune teller tells him he will have big gains this year. 4,316 words Added Mar 2018 25k views 4.8 stars (43 votes) •Cock Growth•Huge Cock•Immobility•Muscle Growth•Muscle/Strength•Gradual Change•Plausible Size Difference•Size Increase •M/M
Gettin’ merged by Jefftaur Roommates and friends Mark and Eric are told their dorm is too small for the both of them. Thankfully, they have a solution. 3,207 words Added Aug 2009 21k views 4.7 stars (27 votes) •Multicock•Multihead•Multiarm•Multileg•Multilimb•Multipec•Merging •M/M
How it’s done by phallicphan College centaur shows his younger brother how to breed. 4,189 words Added Oct 2017 11k views 5.0 stars (9 votes) •Muscle/Strength•First Time/Virgin•Incest•Brothers•Centaurs •M/M
It could happen to you by Josef Howard The author is singled out by his fans to try a bootleg muscle growth serum. Is it fiction or fact? Could it happen to you? 3,947 words Added Jan 2003 17k views 4.7 stars (9 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Hair Growth/Getting Hairy•Nonconsensual change•Nonconsensual sex •M/M
Jason’s surprise by Jefftaur Jason comes home with a surprise. Hint: it involves extra shoes left by the door. 3,355 words Added Jan 2001 13k views 4.8 stars (8 votes) •Multicock•Boytaur•Multiarm•Multileg•Multilimb •M/M
The mirror by msclundylvr At an estate sale, a man who’s disappointed with his life (and body) finds a full-length mirror that shows him what he wants to see. 2 parts 3,595 words Added Jul 2006 13k views 4.9 stars (7 votes) •Cock Growth•Muscle Growth•Muscle/Strength•Getting Handsomer •M
Raygun-nomics by Ziel Elliot is eager to show his pal Lance his newest invention, but Lance has some ideas of his own how they should use it. 4,755 words Added May 2018 17k views 4.7 stars (9 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Giants•Size Increase •M/M
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… 6,594 words Added Jan 2014 12k views 5.0 stars (7 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious •M/M
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