M/F

Stories in which the erotic encounters and/or focus involves a man and a woman 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 3

Adventures of a selfsucker by willy8 Silas loves going down on his own big cock, and while the intense experience of autofellatio doesn’t help him with his girlfriend it does bring him closer to his handsome roommate Ben. 16 parts Added Jul 2015 Updated 28 Jul 2017 41k views 4.3 stars (22 votes) 42k words (#89) •Cock Growth•Huge Cock•Self-suck•Bisexual•Hetero Sex •M•M/M•M/F

Alpha encounters: Logan by Eric Aaldersen An eighteen-year-old alpha, Logan, needs some release as he waits to meet up with his smoking hot boyfriend. Someone in his English class ends up lending a hand. Or... mouth. Part of a collection of Alpha Encounters. Added Apr 2023 3,856 views 5.0 stars (2 votes) 2,549 words •Huge Balls•Huge Cock•Muscle/Strength•Muscle Worship•Bisexual •M/M•M/F

The alpha touch by Caliburn Young engineer Max has a good deed rewarded with a mysterious rune now tattooed to his wrist. Bestowed with the power to change the body of the men he touches, Max’s life and his friends’ change quite a bit. 15 parts Added Jan 2022 Updated 4 Nov 2023 84k views 4.9 stars (201 votes) 61k words (#47) •Cock Growth•Huge Balls•Huge Cock•Straight to Gay•Muscle Growth•Butt Growth•Increased Libido•Gradual Change•Voice Deepening•Getting Taller•Size Increase•Getting Hairy•Suggestion•Hetero Sex•Dom/Sub•Nonconsensual change •M/M•M/F

B 2

Bali encounter by LenZelig On a trip to Bali, a happily married couple, Pete and Lori, encounter a pair of irresistibly beautiful muscle twins named Wayan and Kadek, and then their family and friends… and things become deliciously complicated. 2 parts Added Nov 2017 Updated 8 Dec 2017 15k views 5.0 stars (10 votes) 29k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•First Time/Virgin•Incest•Brothers•Twins•Bisexual•Hetero Sex•Dom/Sub •M/M•M/M/M•M/F•M/M/F

Build-A-Hunk by YellowJester Hunk Tech’s new Build-A-Hunk allows you to customize everything about a man. Gwen seizes upon this opportunity to get the husband she always wanted. Added Jul 2022 7,070 views 4.8 stars (8 votes) 4,641 words •Cock Growth•Other Mental Changes•Muscle Growth•Getting Handsomer•Getting Taller•Hetero Sex •M/F

E 1

Easy cum, easy go by Noam de Pluma and Kuro Norman Aster is working his regular shift at the restaurant when a mysterious stranger walks in and changes his life forever… except his life has always been that way, right? Right? 3 parts Added Apr 2022 Updated 16 Apr 2022 12k views 4.4 stars (10 votes) 22k words •Always Hard•Cock Growth•Huge Balls•Huge Cock•Always Cumming•Hyper Cum•Public Orgasm•Gender Swap•Other Mental Changes•Straight to Gay•Muscle Growth•Always Shirtless•Increased Libido•Getting Taller•Size Increase•Retcon•Suggestion•Bisexual•Humiliation•Sex-Slave•Hyper Pheromones •M/M•M/M/M•M/F

F 1

Figurines: The next generation by squatch A new subject is gifted the incredible bracelets, only to find unexpected changes. Added May 2023 4,875 views 4.7 stars (9 votes) 1,679 words •Cock Growth•Muscle Growth•Foot Growth•Getting Handsomer•Transformation•Getting Taller•Plausible Size Difference•Nonconsensual change•Body Swap •M/F

G 1

Growing retribution by John Smith A woman decides to make a dick and balls growth serum to grow a group of guys up to the biggest size she can take. Added Jan 2023 3,702 views 1.0 stars (6 votes) 2,151 words •Cock Growth•Muscle Growth•Hetero Sex •M/F

I 1

The Ixlutani by Lloyd Irving Kyle Anderson set out with his best friend Ben Miller for one last hurrah, revisiting the woods behind their childhood homes and the mysterious cave they discovered there, before Kyle’s impending nuptials with his longtime girlfriend, Olivia. What neither man knew was that after that day neither their bodies nor their relationship would ever be the same. 9 parts Added Jun 2021 Updated 14 Aug 2021 20k views 4.9 stars (22 votes) 54k words (#60) •Cock Growth•Cut to Uncut•Cock Shrinking•Cock Theft•Huge Cock•Straight to Gay•Muscle Theft•Muscle/Strength•Increased Libido•Transformation•Getting Taller•Plausible Size Difference•Size Decrease•Size Increase•Bisexual•Hetero Sex•Supernatural •M/M•M/F

J 1

Just a little bigger by Dream Big Drew has two problems: he’s got a crush on his two best friends, Vic and Sarah, and he’s self-conscious about being short and skinny. He’s not prepared for the changes that develop in both departments on their fateful post-graduation trip to New York City. 15 parts Added Dec 2019 Updated 7 Mar 2020 32k views 4.7 stars (18 votes) 31k words •Cock Growth•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Increased Libido•Breast Expansion•Gradual Change•Transformation•Getting Taller•Bisexual•Hetero Sex •M/M•M/F•M/M/F

M 3

Medicine show by Fafhrd and Longbow9 Underendowed College student Terry comes in contact with a mysterious “extension cream” that turns out to be the real thing. Soon, he and his male and female friends are transforming themselves, and some are unable to stop. 174 parts Added Feb 2012 Updated 22 Feb 2014 211k views 4.5 stars (25 votes) 250k words (#2) •Cock Growth•Ball Growth•Huge Cock•Hyper Cock•Self-suck•First Time/Virgin•Bisexual•Hetero Sex•Lycra/Spandex•Infectious •M•M/M•M/F•M/F/F•M/M/F

Meteor shower by Tym Greene A couple heads out to a costume party to celebrate a big meteor shower. Little do they know that the party’s host has other plans. Added Sep 2021 7,369 views 3.0 stars (2 votes) 10k words •Female to Male•Male to Female•Gender Swap•Gay to Straight•Other Mental Changes•Butt Growth•Belly Growth•Breast Expansion•Gradual Change•Transformation•Getting Taller•Size Increase•Human to Animal/Anthro•Getting Fatter•Retcon•Bisexual•Hetero Sex•Nonconsensual change•Anthro/Furry•Mermen •M/M•M/F•M/M/F

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 158k 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

N 2

A new world order by Kowalski The archive was missing the bulk of this classic hetero muscle story, so I’ve restored the lost Parts for those who are interested. 28 parts Added Mar 2004 Updated 25 May 2016 33k views 3.0 stars (9 votes) 50k words (#69) •Muscle Growth•Muscle/Strength•Muscle Worship•Size Increase•Hetero Sex •M/F

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 Added Oct 2020 Updated 8 Jul 2023 40k views 4.8 stars (16 votes) 27k words •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

O 1

OnlyFans blow up 2 by UberPump A football player and his girl star in a medical roleplay. However, the “nurse” has other plans for her patient as his cock starts to blow up bigger than either of them expected. His bloated cock expands with wild abandon as the roleplay goes awry and his cock becomes hyper erect! Added Oct 2022 5,244 views 5.0 stars (1 vote) 4,015 words •Cock Growth•Huge Cock•Hyper Cock•Hetero Sex•Blood•Nonconsensual change •M/F

P 2

The permanent cuddle by Cail Smith An unfortunate victim of the Merge Wave tells his story.  Added Apr 2023 1,714 views 4.6 stars (11 votes) 1,306 words •Multicock•Bisexual•Nonconsensual change•Merging•Shared Body•Complete •M/M•M/F

The pump by UberPump A young man and his wife find themselves at the mercy of a cock pump.  He's already quite big at 9 inches long, but how much bigger can he go and will they find a limit to his size? 2 parts Added Jan 2023 Updated 1 Apr 2023 12k views 4.6 stars (17 votes) 7,269 words •Cock Growth•Cock Pumping•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Cum Milking•Hyper Cum•Addiction•Increased Libido•Forced Growth•Inflation•Bisexual•Hetero Sex •M/F•M/F/F

S 1

Super serum by Jack is Jacked Jack’s dad develops a way to grow muscles and decides his son should try it out. Added Mar 2023 9,204 views 2.9 stars (7 votes) 1,649 words •Cock Growth•Muscle Growth•Muscle/Strength•Muscle Worship•Public Nudity•Increased Libido•Getting Handsomer•Voice Deepening•Getting Taller•Size Increase•Getting Hairy•Father/Son•Hetero Sex•Complete •t/t•M/F

T 1

Tripod by matt1008 A college student explains how he got his intriguing nickname. Added Aug 2022 6,305 views 4.9 stars (13 votes) 7,435 words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Bisexual •M/M•M/M/M•M/F

W 1

Wedding swap by squatch Another wedding alone, until you employ a service that makes it interesting. 2 parts Added Nov 2021 Updated 13 Nov 2021 8,626 views 5.0 stars (8 votes) 5,013 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Increased Libido•Getting Handsomer•Getting Taller•Plausible Size Difference•Size Increase•Retcon•Bisexual•Hetero Sex•Body Swap•Shared Body •M/M•M/F