M/t

Stories in which the erotic encounters and/or focus involves a man and a teenager (under 18 years old) together (or wanting to be together).

Note on stories involving multiple sets of characters: Categories apply to the narrative at any given point. If a story involves Andy wanting to be with Bob, and Charlie wanting to be with Dave, it’s M/M, not M/M/M. If Andy and Bob hook up with Evan, then at that point it becomes M/M/M.

A 2

Absolute general relativity by brazboy Matias, Murilo, and Marcelo are three brothers in very different stations in life, navigating a world organized by a single universal, albeit apparently contradictory, principle—absolute general relativity. Added Aug 2023 1,992 views 5,999 words •Huge Balls•Huge Cock•Public Nudity•Incest•Brothers •M/M•M/M/M•M/t

Alpha Coach and Mike by Eric Aaldersen Alpha Mike remembers the alpha who made him—his super-hot high school hockey coach! Added Apr 2020 9,986 views 5.0 stars (7 votes) 7,300 words •Huge Balls•Huge Cock•Muscle/Strength•First Time/Virgin•Supernatural •M/t

B 4

Bad suggestion by pkak2k12 I’ve learned what I say about others happens. However, I’m still figuring out how to use it, and my best friend and little brother kind of ended up being test subjects for it. Added Sep 2022 12k views 4.6 stars (25 votes) 1,619 words •Cock Growth•Muscle Growth•Muscle/Strength•Getting Taller•Plausible Size Difference•Size Increase•Retcon•Suggestion•Incest•Brothers •M/M•M/t

Brotherly love by TheSizeKing Reece is a 20-year-old guy who has everything going for him in life: good looks, good brains, good personality, even a well-above average endowment between his legs. His younger brother, Michael, is exactly the opposite. Michael is about to turn 18, and could use a little boost before he goes out into the adult world. 5 parts Added Apr 2020 19k views 4.9 stars (19 votes) 7,816 words •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Incest•Brothers •M/t

The brothers by FanTCMan Cory Callahan and his three sibs participate in a secret program, resulting in more muscles, body hair, cock size, and horniness. 8 parts Added Mar 2003 113k views 4.8 stars (94 votes) 23k words •Always Hard•Cock Growth•Huge Cock•Addiction•Straight to Gay•Muscle Growth•Muscle/Strength•Gradual Change•Getting Hairy•Incest•Brothers •t/t•M/t

The bunker by JayPat Fleeing some bullies, three teens hide in a secret abandoned bunker hidden in the Arizona wilds where they find some antiquated computer equipment that they really should’ve left alone. 5 parts Added Nov 2018 19k views 4.4 stars (22 votes) 28k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase •M/M•t/t•M/t

D 1

Daemos island by Charles Westfall A Polish scientist and explorer, Ferdinand Rolcek, discovers a hidden island where the lost secrets of the Daemos, alien pioneers of masculine beauty and sexuality far beyond anything known to humanity, are finally revealed to him; and what he learns makes him never want to leave again. Don’t worry, he won’t be lonely. 6 parts Added Feb 2003 31k views 3.2 stars (21 votes) 15k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Increased Libido•Size Increase•Age Difference•Incest•Father/Son•Twins•Destruction/Violence •M/t

F 1

Full potential by muscl4life and Redkage Coach Tanner hears about a young man named Corey who can lift more than is humanly possible. Fascinated, he tracks Corey down—only to discover he’s the last person he would have guessed. 2 parts Added Mar 2016 20k views 4.7 stars (13 votes) 11k words •Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Size Increase •M/t•NS

G 1

The good freak by Also Known As Kevin Peters is a cheerful, very fit young man who happens to be getting bigger and hotter in every way, much to the bemusement (and secret arousal) of his doctor. Soon the guys around him are growing too, and Dr. Donaldson discovers even he’s not immune... 33 parts Added Nov 2002 50k views 4.9 stars (24 votes) 34k words •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

L 1

Lucas gets everything he wanted, and more by Joven Lucas steals some of his researcher friend’s enhancement drug, and is elated when David decides to let him keep taking it once he turns 18. 8 parts Added Jan 2019 Updated 26 Jan 2019 16k views 4.7 stars (14 votes) 11k words •Cock Growth•Huge Balls•Ball Growth•Huge Cock •M/t

M 2

The maturing ceremony by brazboy Out of all the sacred moments in a lad’s life, none is more amazing and important than his maturing ceremony. Dinis will, led by his own older brother, find in it the chance to become an improved version of his hunkish self. Added Sep 2023 1,954 views 4.3 stars (3 votes) 3,858 words •Cock Growth•Huge Cock•Hyper Cock•Public Orgasm•Extra Mouths•Multi-abs•Multicock•Multiarm•Multileg•Multilimb•Multipec•Multitongue•Multitorso•Stacking•Muscle Growth•Transformation•Incest•Brothers•Complete •M/M/M/...•M/t

My roommate (complete) by LenZelig Bill’s hot adventures with his irresistible sex-god of a roommate, Andy Wang, and the others drawn into his adventures, combined with the stories of Andy’s son and his friends. (This revised and updated compilation version includes both “My Roommate” and “My Roommate: The Next Generation.”) 29 parts Added Jul 2002 Updated 19 Jun 2021 159k views 4.5 stars (25 votes) 223k words (#3) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Bisexual•Hetero Sex•Dom/Sub•Witch/Warlock/Wizard•Gay Pride•Mind Control•Complete •M/M•M/M/M•M/M/M/...•t/t•M/t•M/F•M/M/F

P 2

Pool party by FanTCMan Two young men are nervous but excited. They’re about to show off their muscle transformation in front of all the guys at the pool! Added Dec 2002 21k views 4.7 stars (9 votes) 1,575 words •Muscle Growth•Muscle/Strength•Getting Handsomer•Age Difference•Incest•Father/Son •M/M/M/...•t/t•M/t

The Porter Men by Inclytos The Porters are a family of perfect men, all uniquely perfect in their own way. It’s how it’s always been, right? 3 parts Added Oct 2022 Updated 5 Nov 2022 12k views 4.7 stars (22 votes) 8,809 words •Cock Growth•Cock Shrinking•Huge Cock•Dom to Sub•Getting Dumber•Pec Fucking•Hyper Strength•Muscle Breast•Muscle Growth•Muscle/Strength•Always Shirtless•Butt Growth•Increased Libido•Retcon•Incest•Brothers•Father/Son•Twins•Dom/Sub•Sex-Slave •M/M•t/t•M/t

T 1

Toy story by LenZelig During a storm Bob stumbles across a strange webpage offering something called “The Ultimate Sex Machine”. Intrigued, he clicks “order”, expecting maybe a sophisticated sex toy. Instead he gets Randy, a hunk-shaped machine dedicated to ensuring that Bob experiences ultimate sexual possibilities from now on and willing to reshape reality to make it happen. 2 parts Added Jul 2002 31k views 5.0 stars (27 votes) 6,947 words •Muscle Growth•Muscle/Strength•Age Difference•Incest•Father/Son•Twins•Androids/Cyborgs•Space Travel•Complete •M/M•M/M/M/...•t/t•M/t