Saturday Flashback: Rated M for Mature

Love/shift by BRK Maxfield has very mixed feelings about leaving the city and all his tech behind to spend the summer after graduation halfway up a mountain in the family’s backwoods cabin—just him, his dad, and a whole lot of secrets. 11 parts 68k words (#44) Added Dec 2017 Updated 27 Apr 2019 45k views 4.8 stars (37 votes) •Muscle Growth•Muscle/Strength•Always Shirtless•Man Scent•Gradual Change•Transformation•Size Increase•Hair Growth/Getting Hairy•Age Difference•Incest•Father/Son•Werebears•Supernatural•Complete •M/M

Bull’s strength by muscl4life On a quiet farm far from anywhere, an orphan named Joshua grows up so huge and strong that he’s bullied for being a freak. His aunt and uncle raise him with love and teach him to accept who he is, but Joshua yearns to be among men who don’t just accept his giant body, but love and admire his amazing size and power. 28 parts 88k words (#29) Added Jul 2018 Updated 6 Oct 2018 93k views 4.8 stars (45 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Multi-abs•Multicock•Muscle Growth•Muscle/Strength•Muscle Worship•Transformation•Getting Taller•Plausible Size Difference•Size Increase•Age Difference•Bestiality•Incest•Father/Son•Destruction/Violence•Infectious•Flying •M/M•M/M/M•M/M/M/...

Chuck, the size thief by spacevlad Chuck, a middling-sized construction worker who wishes he were bigger, finds a way to grow huge. 16 parts 42k words (#96) Added Jun 2017 Updated 22 Dec 2017 124k views 4.6 stars (32 votes) •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

Company guys by FanTCMan You can’t even imagine how excited Joey and I were, excited and scared, when Dad said he was going to give us the formula he’d been sampling. We were going to be models for what he called the Company. 2 parts 7,919 words Added Dec 2002 36k views 4.6 stars (11 votes) •Cock Growth•Huge Cock•Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Increased Libido•Hair Growth/Getting Hairy•Age Difference•Incest•Father/Son

Danny gets big by StudMscl Danny is unexpectedly given some brown paper packets that are supposed to turn him into everything he wishes he were. He quickly learns that changing your body changes your life in unexpected ways. 3 parts 9,501 words Added Nov 2003 68k views 4.6 stars (20 votes) •Cock Growth•Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength •M/M

Derek’s rebirth by muscl4life An elixir from the dawn of time is turning Derek into the ultimate muscle daddy, which he demonstrates by wearing out three young admirers. Taking on a personal trainer as his acolyte, Derek prepares himself for an even more impressive Phase Two of his transformation. 3 parts 12k words Added Nov 2018 34k views 4.6 stars (21 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Nipple Emissions•Straight to Gay•Muscle Growth•Muscle/Strength•Giants•Plausible Size Difference•Size Increase•Age Difference •M/M

Massive by Alex Rif James finds the superhero costume his stepson had ordered from a strange website for Halloween, and decides to try it on. 2 parts 2,851 words Added Feb 2016 39k views 3.7 stars (17 votes) •Size Increase•Body Suit•Age Difference•Incest•Father/Son•Lycra/Spandex•Halloween•Superhero/Supervillain•Stories with Images •M/M

The masters class by Corwin Even if they’re still hale and strong, senior bodybuilders are bound to think wistfully of what their bodies were like back in the day. And, if they’re really lucky, they might get the chance to feel the potency of muscular youth all over again. 4,004 words Added Oct 2018 7,806 views 4.0 stars (4 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Age Regression

Musclove, Texas by Max Mann Moving to Musclove, Texas with his sons to take up a new teaching position, Rick Long is startled to find a town full of huge, hung, and horny men, all of them eager to have the newcomers join them (in more ways than one). 9 parts 26k words Added Sep 2004 74k views 4.8 stars (51 votes) •Cock Growth•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Twins•Restraints •M/M•M/M/M•t/t•t/t/t•M/t

Practical FX by MuscleMonkeh A special effects movie mogul, used to getting his own way, tries to muscle an especially gifted young producer into working for his production company. 5,070 words Added Jun 2018 15k views 4.9 stars (12 votes) •Cock Growth•Muscle Growth•Muscle Gut•Transformation•Size Increase•Human to Animal/Anthro•Age Difference•Nonconsensual change•Anthro/Furry•Fantasy Realm•Mind Control •M/M

Public relations by Maximilian When Jamie gets an out-of-the-blue invitation to meet up with a friend he’d fallen out of touch with, he doesn’t realize Adam has an ulterior motive—or that it involves an unwilling introduction to growth and magic. 18 parts 125k words (#13) Added Jun 2015 Updated 27 Apr 2019 68k views 4.8 stars (44 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle Gut•Muscle/Strength•Getting Taller•Giants•Plausible Size Difference•Size Decrease•Size Increase•Hair Growth/Getting Hairy•Destruction/Violence•Restraints•Witch/Warlock/Wizard•Gay Pride •M/M

Santa’s big surprise: Family visit by Silverfox Dad Muscle studs Jeremy and Marco are incredibly happy together thanks to Santa’s gift the year before, and with their stunning physiques they have money and fans and everything they could need. Now, if only their families weren’t coming for Christmas... 2 parts 6,719 words Added Dec 2018 10k views 5.0 stars (5 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Age Difference•Seniors•Christmas •M/M

Spice by Mr. X and Mad Dog In this epic story, the transformative powers of a certain substance are tested by a couple of very horny guys. 50 parts 221k words (#4) Added Oct 2009 Updated 9 Nov 2019 239k views 4.4 stars (63 votes) •Cock Growth•Huge Cock•Other Mental Changes•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Theft•Muscle/Strength•Muscle Worship•Man Scent•Foot Growth•Gradual Change•Transformation•Voice Deepening•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Age Difference•Incest•Father/Son•Supernatural•Gay Pride•Alcohol •M/M•M/M/M

Tales from the dark city by Ogrebear A human cutpurse escapes his pursuers, finding safety in, of all places, an orc buck bar. You can figure out what happens next. 7 parts 46k words (#83) Added Jun 2005 27k views 4.9 stars (15 votes) •Cock Growth•Huge Cock•Cum inflation•Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Pointy Ears•Transformation•Plausible Size Difference•Size Increase•Race/Ethnicity Change•Hair Growth/Getting Hairy•Destruction/Violence•Dom/Sub•Humiliation•Restraints•Demons•Orcs•Fantasy Realm•Mind Control •M/M

21-year-old scotch by Cris Kane On his 50th birthday, a closeted man enters a gay bar and is given a drink with an unexpected side effect. 9 parts 46k words (#82) Added Aug 2019 Updated 21 Sep 2019 11k views 4.7 stars (7 votes) •Huge Cock•Muscle/Strength•Age Regression•Time Travel•Witch/Warlock/Wizard •M/M•M/M/M

X-Dream Makeover by Cris Kane Rich from selling his tech stocks, David hopes to improve his love life with a makeover from a mysterious shop in Chinatown. 4 parts 16k words Added Sep 2018 11k views 5.0 stars (5 votes) •Getting Dumber•Other Mental Changes•Muscle Growth•Transformation•Age Progression •M/M•M/M/M