Getting Dumber

Usually occurs in stories where guys relentlessly pursue (or have imposed on them) phenomenal muscle growth, the trade-off coming in the form of lost of intellect and even reduction to a more animal-like mental state.

  Child of:  Mental Changes. Related tags:  Addiction;Butch-to-Fem;Dom to Sub;Gay to Straight;Getting Dumber;Other Mental Changes;Straight to Gay.

  Tag Group:  Mental Change.

A 3

Administrator by FanTCMan Added Apr 2003 29k views 4.3 stars (10 votes) 1,784 words •Cock Growth•Huge Cock•Getting Dumber•Muscle Growth•Muscle/Strength

Anything to grow by Big Bull Trainer There are some with an unquenchable desire to not only grow, but to grow to unnaturally large proportions, and will go to any lengths to do it. This is a story of just such a person. Added Aug 2016 46k views 4.5 stars (18 votes) 7,815 words •Getting Dumber•Immobility•Muscle Growth•Muscle/Strength•Transformation•Size Increase

An app for the ages by Seth Peterson An app that can change people on a whim? A totally ego-maniacal straight boy with a strong distaste toward his nerdy, unappreciative roommate? Well, things can only get more exciting from here, can’t they? Added Dec 2018 35k views 4.9 stars (24 votes) 3,147 words •Cock Growth•Huge Cock•Butch-to-Fem•Getting Dumber•Straight to Gay•Muscle Breast•Muscle Growth•Muscle/Strength•Getting Taller•Getting Hairy•App•Nonconsensual change •M/M

B 4

Beauty is in the eye of the beholder by Transformheaven Nerdy Andrew has a crush on a cheerleading bimbo. He gains an app that allows him to make changes to his body. How will this end? Added May 2022 12k views 3.7 stars (11 votes) 5,327 words •Cock Growth•Huge Cock•Hyper Cock•Getting Dumber•Straight to Gay•Hyper Muscle•Muscle Growth•Getting Taller•App•Retcon•Misogyny •M/M

Bloody pumpkin fuckers by NioSatyr Three frat bros go into the dark forest on Halloween. The blood moon shining on a wild pumpkin patch promises growth and transformation. Added Oct 2021 17k views 4.9 stars (14 votes) 7,196 words •Always Hard•Cock Growth•Cockfucking•Huge Balls•Huge Cock•Nipcocks•Prehensile Cock•Hyper Cum•Nipple Emissions•Multi-balls•Multicock•Multiarm•Multipec•Stacking•Wings•Getting Dumber•Straight to Gay•Hyper Muscle•Muscle Breast•Muscle Growth•Stretchy•Increased Libido•Transformation•Getting Taller•Giants•Plausible Size Difference•Size Increase•Human to Animal/Anthro•Getting Hairy•Hyper Tongue•Tongue Growth•Mouthcock•Tailcock•Plants•Anthro/Furry•Dragons•Werewolves•Supernatural•Halloween •M/M/M

The boost by Cris Kane The mysterious boost in a health club’s smoothies causes fast and dramatic changes. 2 parts Added Jul 2015 24k views 4.9 stars (9 votes) 13k words •Getting Dumber•Straight to Gay•Muscle Growth•Muscle/Strength

Boy in a bag by Absman420 Maybe there’s such a thing as too much hormone therapy… Added Oct 2020 18k views 4.8 stars (13 votes) 7,534 words •Cock Growth•Huge Cock•Getting Dumber•Other Mental Changes•Muscle Growth•Muscle/Strength•Age Regression•Nonconsensual change •M/M

C 4

Chronivac in the workplace by Dusk Skull King When a good looking straight guy comes in with his wife, how can I resist not messing with them? 2 parts Added Jul 2022 Updated 6 Aug 2022 8,244 views 4.4 stars (8 votes) 5,227 words •Cock Growth•Getting Dumber•Straight to Gay•Muscle Growth•Age Regression•App•Retcon•Nonconsensual change •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 Added Jun 2017 Updated 22 Dec 2017 118k views 4.6 stars (30 votes) 42k words (#90) •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•Getting Hairy•Getting Fatter•Inflation•Nanotech•Destruction/Violence•Nonconsensual change•Nonconsensual sex•Absorption •M/M

Corporate growth by screamingmoist Corporate growth can take on a whole new meaning if you cross the wrong people. Added Sep 2021 9,593 views 4.1 stars (7 votes) 6,574 words •Cock Growth•Getting Dumber•Straight to Gay•Muscle Growth•Butt Growth•Nonconsensual change •M/M

Crack the code: Employee of the month by screamingmoist A burnt-out young man with eyes on his boss hopes to have his code rewritten. Added Aug 2022 5,744 views 5.0 stars (4 votes) 5,761 words •Cock Growth•Getting Dumber•Muscle Growth•Butt Growth•Retcon •M/M

D 3

Daddy’s boy by Seth Peterson What happens when a cocky, overly narcissistic businessman oversteps courtesy? Why, muscle-growing, mind-altering, submission-inducing karma, of course! Added Jun 2018 33k views 4.8 stars (14 votes) 2,534 words •Cock Growth•Huge Cock•Nipple Emissions•Getting Dumber•Straight to Gay•Muscle Breast•Muscle Growth•Muscle/Strength•Getting Hairy•Dom/Sub•Humiliation •M/M

David devolving by FanTCMan 2 parts Added Sep 2003 46k views 4.8 stars (18 votes) 9,538 words •Cock Growth•Huge Balls•Huge Cock•Getting Dumber•Straight to Gay•Muscle Growth•Muscle/Strength•Nonconsensual change

Detention by octavian Is it mistaken identity? Or is something darker at work here? Whatever the case, when our main character gets sent to detention, he’s sure there’s been a mistake. The guy sitting next to him, however, sees things differently. Added Jul 2022 9,004 views 4.8 stars (13 votes) 6,534 words •Cock Growth•Huge Balls•Huge Cock•Self-suck•Getting Dumber•Straight to Gay•Muscle Growth•Foot Growth•Getting Taller•Size Increase•Human to Animal/Anthro•Getting Hairy•Retcon•Nonconsensual change•Anthro/Furry •t/t

F 4

Fantastic island by FanTCMan Gene’s island vacation takes a sudden twist when he meets a handsome stranger and has a drink with him, only to wake up blearily to encounter the man’s muscle giant fuck toy... and his own body is feeling very strange... Added Jul 2014 32k views 4.6 stars (32 votes) 5,249 words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Getting Dumber•Muscle Growth•Muscle/Strength•Nonconsensual change

Frat boys, bro!! by Seth Peterson What happens when a handsome boy and his buddy finds some frat boy pills? Sick bulky results, BRO!! Added Jan 2018 42k views 3.9 stars (37 votes) 2,556 words •Huge Balls•Huge Cock•Getting Dumber•Muscle Growth•Muscle Gut•Muscle/Strength•Belly Growth•Size Increase•Getting Hairy•Getting Fatter •M/M

Frat transformations by Shrinkingmen.com A fraternity party goes wrong when a bottle of transformation pills is introduced to a game of spin the bottle. Added Jan 2023 5,650 views 2.8 stars (4 votes) 2,018 words •Cock Shrinking•Getting Dumber•Muscle Theft•Belly Growth•Size Decrease•Getting Fatter•Humiliation•Complete •M/M

Friendly transformations by Richard Buttstuff A group of four college guys leave a wrestling match angry at each other and at the world. They meet an entity that makes them learn to love instead of hate. Added Sep 2023 4,879 views 4.2 stars (6 votes) 7,424 words •Cock Growth•Cock Shrinking•Cock Theft•Cockless•Human to Cock•Hyper Cum•Multi-balls•Multicock•Boytaur•Four Legs•Getting Dumber•Straight to Gay•Muscle Growth•Public Nudity•Man Scent•Stretchy•Getting Handsomer•Transformation•Size Increase•Getting Hairy•Hairless•Nonconsensual change•Nonconsensual sex•Merging•Centaurs•Urban Fantasy•Complete •M/M•M/M/M/...

G 2

The great pumpkin by screamingmoist Four young vandals learn that it’s bad luck to destroy jack-o’-lanterns on Halloween. Added Oct 2021 6,974 views 4.7 stars (6 votes) 8,028 words •Public Orgasm•Getting Dumber•Other Mental Changes•Straight to Gay•Butt Growth•Increased Libido•Transformation•Size Decrease•Hairless•Nonconsensual change•Horror•Supernatural•Halloween •M/M/M/...

Gym class hero by Portowulf Engineering student Dominic Wilde becomes the unexpected recipient of the “gym class hero” title during his college senior year. Added May 2020 9,278 views 3.8 stars (4 votes) 2,219 words •Cock Growth•Getting Dumber•Muscle Breast•Muscle Growth•Muscle/Strength•Belly Growth•Getting Fatter

H 3

Hashtag by screamingmoist Troy downloads the Facets app and opens up a world of possibilities. 4 parts Added Feb 2023 Updated 4 Mar 2023 8,375 views 4.6 stars (5 votes) 14k words •Cock Growth•Cock Shrinking•Butch-to-Fem•Getting Dumber•Other Mental Changes•Straight to Gay•Muscle Growth•Butt Growth•Transformation•Size Decrease•App•Retcon •M/M•M/M/M

The hike by Unknown Trying to get away from things after a breakup with a hike into the wilderness, Steve discovers a strange cavern adorned with drawings of men possessed of freakishly large muscles and cocks. It’s not long before he discovers the reason for the drawings. Added Sep 2003 17k views 4.6 stars (11 votes) 4,189 words •Hyper Cock•Getting Dumber•Straight to Gay•Muscle Growth•Muscle/Strength•Getting Hairy•Nonconsensual change •M•M/M

Hypno muscle: jock dreams by Douglas Benjamin Toby and Liam have picked up a hypnotic audio tape that promises to grow their muscles. When they fall asleep to the hypnotic induction, they have a dream that seems all too real: Suddenly, they have to power to transform each other into big-muscled meatheads, flexing and posing for each other and talking like dumb jocks. Even more transformation is possible, but there is a catch. Added Jul 2019 22k views 4.5 stars (4 votes) 4,333 words •Getting Dumber•Hyper Muscle•Muscle Growth•Muscle Theft•Muscle/Strength•Man Scent•Transformation•Getting Taller•Size Decrease•Size Increase•Human to Inanimate•Suggestion•Orcs•Hypnosis•Mind Control •M/M

I 1

The institute by FanTCMan Two intrepid newsmen get a little too close to the story. Added Dec 2002 15k views 4.2 stars (6 votes) 2,641 words •Cock Growth•Getting Dumber•Other Mental Changes•Muscle Growth•Muscle/Strength•Increased Libido•Getting Hairy

K 1

Karma pills by Musiker Steve has been bullying the other members of Matt's Gym for ten years. When Matt gives Steve a new kind of muscle-enhancing pill, he conveniently forgets to mention some significant side effects. 5 parts Added Jun 2019 Updated 27 Jul 2019 30k views 3.8 stars (19 votes) 24k words •Cock Growth•Cock Shrinking•Cockless•Huge Balls•Huge Cock•Hyper Cum•Getting Dumber•Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase•Dom/Sub•Humiliation•Nonconsensual change•Sex-Slave•Bodily Fluids•Anthro/Furry•Mind Control•Hyper Anus •M/M•M/M/M

L 1

Livin la vida loca by Onix I wasn’t always like this… but Steve—I mean my Master says I won’t be able to remember any of that in a little while. Added Apr 2003 16k views 4.4 stars (5 votes) 9,347 words •Getting Dumber•Straight to Gay•Race/Ethnicity Change•Nonconsensual change•Sex-Slave•Hypnosis•Mind Control •M/M

M 3

Mariposa honeymoon: A six-pack story by Cris Kane Their flamboyant best-man Pierce gives strait-laced newlyweds Derek and Charles a mysterious six-pack to liven up their Cancun honeymoon. 19 parts Added Dec 2018 Updated 16 Feb 2019 20k views 4.6 stars (12 votes) 106k words (#22) •Cock Growth•Cock Shrinking•Huge Cock•Getting Dumber•Other Mental Changes•Muscle Growth•Muscle/Strength•Butt Growth•Belly Growth•Increased Libido•Size Decrease•Size Increase•Age Regression•Race/Ethnicity Change•Getting Hairy•Witch/Warlock/Wizard •M/M•M/M/M/...

Mimbo drops by Absman420 Tom receives a secret serum that turns men into horny, dumb, huge-cocked muscle hunks. He decides to try it out on his bicycling buddy Sam, and discovers it’s extremely effective—especially in multiple doses. 2 parts Added Jul 2011 56k views 4.7 stars (33 votes) 14k words •Cock Growth•Huge Cock•Getting Dumber•Straight to Gay•Muscle Growth•Muscle/Strength•Transformation•Nonconsensual change•Nonconsensual sex•Mind Control •M/M

My big dummy by MegaMaker After years of no contact from his old friend Mylo, Arlo gets a random text from him asking if he can come over. It seems Mylo has recently come across these pills that enhance your body. At first Arlo doesn't believe him, but he stops by anyway to make sure everything is okay. Added Feb 2023 9,880 views 4.0 stars (6 votes) 6,057 words •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Public Orgasm•Getting Dumber•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Muscle Worship•Public Nudity•Man Scent•Butt Growth•Gradual Change•Getting Taller•Giants•Size Increase•Complete •M/M

N 1

No shirt, no service by Cris Kane The uptight clerk at a beachside art gallery is given a makeover to better suit his surroundings. Added Jun 2019 7,712 views 4.8 stars (4 votes) 3,879 words •Getting Dumber•Other Mental Changes•Muscle Growth•Muscle/Strength•Transformation

P 3

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

Position wanted by Cris Kane A job agency tailors a middle-aged man’s resume to make him a more attractive prospect. Added Jan 2020 8,891 views 5.0 stars (4 votes) 3,430 words •Huge Cock•Getting Dumber•Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Age Regression•Race/Ethnicity Change•Retcon

The potion shop by Alpha Pup Templar A new potion shop has opened in the countryside of Marketh. Strangely, they don’t sell healing potions. Instead they sell transformation potions of every kind imaginable! So what happens when adventurers don’t read the directions? 3 parts Added Jan 2023 Updated 11 Feb 2023 11k views 4.7 stars (7 votes) 5,540 words •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cum•Public Orgasm•Multi-abs•Multi-balls•Multicock•Boytaur•Multiarm•Multileg•Multilimb•Multipec•Getting Dumber•Other Mental Changes•Immobility•Muscle Growth•Public Nudity•Man Scent•Butt Growth•Increased Libido•Getting Handsomer•Transformation•Getting Taller•Forced Growth•Size Increase•Cocktaur•Nonconsensual change•Bodily Fluids•Hyper Pheromones•Centaurs•Dragons•Fantasy Realm•Mind Control •M•M/M

S 7

Sk8r dreams: Odds and ends by Reaver This story is set in the Sk8r Dreams universe, but is intended to stand alone. It's a little like the “Spells 'R Us” (SRU) stories, but with hopefully a slightly different slant to it. Added Oct 2003 7,010 views 3,295 words •Huge Cock•Getting Dumber•Transformation•Age Regression•Mind Control

So you wanna be a hunk? by YellowJester The new game show So You Wanna Be a Hunk offers men down on their luck an opportunity to participate in various challenges to win the chance to improve their bodies and become hunks! 5 parts Added Mar 2023 Updated 17 Jun 2023 19k views 4.9 stars (39 votes) 21k words •Cock Growth•Ball Growth•Huge Cock•Nipple Emissions•Getting Dumber•Other Mental Changes•Straight to Gay•Muscle Growth•Public Nudity•Man Scent•Getting Handsomer•Voice Deepening•Getting Taller•Age Regression•Getting Hairy•Hairless•Hyper Pheromones•Complete •M•M/M•M/M/M/...

The source: a Henry Himura mystery by Proteus Henry is hired to track down a missing young man named Samuel Roth. The trail leads him to a gym and a mysterious serum called Hard-T. 11 parts Added Aug 2013 23k views 4.9 stars (15 votes) 16k words •Cock Growth•Huge Cock•Getting Dumber•Muscle Growth•Muscle/Strength•Gradual Change•Plausible Size Difference•Getting Hairy •M/M

The start of something good by falseeyedee Added Apr 2003 13k views 4.7 stars (3 votes) 3,544 words •Cock Growth•Huge Cock•Getting Dumber•Muscle Growth•Muscle/Strength•Nonconsensual change

The streamer by MuscleNexus Daniel psyches himself up for his first Twitch livestream. Maybe he should try doing a low-risk midnight dry run with that obscure game he downloaded… Added Jul 2021 7,820 views 4.3 stars (3 votes) 1,434 words •Getting Dumber•Other Mental Changes•Muscle Growth•Foot Growth•Voice Deepening•Social Media

Stuck in the neighborhood by Cris Kane Brett is annoyed that the gay pride parade won’t let him get where he wants to go. Added Jun 2021 4,553 views 5.0 stars (3 votes) 4,305 words •Butch-to-Fem•Getting Dumber•Other Mental Changes•Straight to Gay•Transformation•Nonconsensual change•Lycra/Spandex•Body Swap•Gay Pride

Summer research by spacevlad Dave, an ambitious researcher at a well-known university, hires an eager-to-grow football player to test an experimental growth supplement. The experimental growth supplement works much better than anticipated and Grunt gains over 50 pounds in just a week, though with some troubling side-effects. 12 parts Added Oct 2017 Updated 22 Dec 2017 54k views 4.8 stars (29 votes) 29k words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Getting Dumber•Other Mental Changes•Straight to Gay•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Gut•Muscle/Strength•Man Scent•Belly Growth•Getting Taller•Giants•Plausible Size Difference•Size Increase•Getting Hairy•Destruction/Violence•Sex-Slave•Fourth of July •M/M

T 2

Think bigger by MaxMorphs Mild-mannered Kyle gains an unexpected power over his hunky friends after they all enjoy a magic show during a fateful vacation in Vegas. 24 parts Added Jun 2022 Updated 20 May 2023 94k views 4.9 stars (113 votes) 57k words (#53) •Cock Growth•Huge Cock•Hyper Cum•Getting Dumber•Straight to Gay•Immobility•Muscle Growth•Muscle Gut•Muscle/Strength•Getting Taller•Size Increase•Suggestion•Dom/Sub•Hypnosis•Complete•Stories with Images •M/M

True pups by Douglas Benjamin Two men wander into the wrong bar, and soon find their bodies growing huge with muscle as their minds go to the dogs. Added Jan 2017 22k views 3.6 stars (7 votes) 3,904 words •Getting Dumber•Muscle Growth•Muscle/Strength•Transformation•Human to Animal/Anthro•Dom/Sub•Anthro/Furry•Mind Control

U 1

Under the knife by screamingmoist An older man desperate for a better body gets more than he bargained for. Added Jul 2023 3,507 views 5.0 stars (1 vote) 5,139 words •Getting Dumber•Straight to Gay•Muscle Growth•Butt Growth•Nonconsensual change •M/M

W 1

Wrong number by screamingmoist An ambitious young man starts receiving messages from a caller he can’t ignore. Added Apr 2023 6,907 views 4.0 stars (5 votes) 7,301 words •Cock Growth•Public Orgasm•Getting Dumber•Straight to Gay•Muscle Growth•Butt Growth•Humiliation•Nonconsensual change •M/M

X 1

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 Added Sep 2018 11k views 5.0 stars (5 votes) 16k words •Getting Dumber•Other Mental Changes•Muscle Growth•Transformation•Age Progression •M/M•M/M/M

Y 1

You don’t get something for nothing by screamingmoist A man has to decide if his new life is worth the cost. Added Feb 2023 6,397 views 4.6 stars (5 votes) 7,669 words •Cock Growth•Huge Cock•Getting Dumber•Straight to Gay•Muscle Growth•Size Decrease•Retcon•Complete •M/M