Hyper Muscle Growth Stories

54,716 results
Orientation
Length
Source
Infinite Scroll

I Wish For... Ch. 03: A Swelling Sensation

by mistyfdfa on Apr 25, 2018
Transsexuals & Crossdressers

A Tale of [The Far Shore] continuing the story of Jeanie, a fitness nut whose wish to be a miracle worker resulted in her becoming a jinni. Summoned to grant her first wish, this chapter features women getting buff, female to altersex transformation, a character becoming a centaur, size play themes, sapphic romance, shared sensations, unexpected outcomes, an...

Autus Does a Mind and Body Good

by sexgundam666 on Sep 14, 2020
Sci-Fi & Fantasy

Visits from Chelsea were eventful. Though it was the same event played differently each time, it never ceased to stick out, witnessing the futa get lodged in the doorway. Marissa had a stock of oil for that purpose alone, helping her friend get in. Once, she left her in the door and took a nap, tired of the routine, and came back to Chelsea still trapped. Su...

See Label for Instructions

by ash_rigby on Oct 12, 2020
NonHuman

This is a weird one, guys. But that's just what we do around here on this account! Anyway, this is a male solo scene involving extreme cock growth and the alien also ends up fucking himself with his tail. This is your last chance to turn around if that isn't your thing! Thank you and enjoy! ~*~ Flyx's recently-polished horns glinted in the bathroom light....

Star Wars Futa Force

by silent soul ken on Nov 7, 2018
Fan Fiction

The Jedi would beat out the Sith in numbers, due to a device called the Orgasm Bomb, Sith are reduced to a select few, Palpatine, Maul, and Ventress with Palpatine hiding her Sith background by using her powers to shrink her assets to the point she seems like a normal woman. Also she uses her own powers to prevent the Jedi from seeing into the future or seei...

Open in Reader

Autus: Epilogue Pt. 02

by sexgundam666 on Dec 24, 2019
Sci-Fi & Fantasy

Author's Notes: WARNING!! This story contains extreme growth and Hyper sized cocks. If you've read the previous epilogue chapter, this may be up your alley, however if not, then I strongly urge that you either read it, or do not continue if cocks five stories tall does not appeal to you. You have been warned. Those who continue, enjoy. ***** Gwen's Journal...

Autus: Epilogue Pt. 01

by sexgundam666 on Oct 8, 2019
Sci-Fi & Fantasy

Diana's Journal – Entry 1 This is exceptionally late into the experiment. I honestly can't believe I didn't consider this before, though it's not all that surprising; I've been known to neglect things like this in the past. Allie says that it always makes her laugh, since I'm one of the more exceptional students in the university. I'd be lying if I said I d...

Autus: Epilogue Pt. 03: Final

by sexgundam666 on Dec 24, 2019
Sci-Fi & Fantasy

Author's Note: In case it's not obvious by the end of this, I do have plans to create a proper sequel to Autus, but it won't happen for quite some time. I have several other projects that have been neglected in recent weeks/months. Without further ado, enjoy. ***** Kona's Journal Entry #1: Well, since Gwen and Diana are writing, I figured; why not? I coul...

Sales Pitch

by mistyfdfa on Sep 14, 2017
Fetish

"That all sounds lovely, but how do I know what you're telling me is true. How do I know this product of yours works?" Xurnami quirked an eyebrow at her scrawny customer, starting to suspect he was just here for the thrills. He had seen before and after photos. He had spoken with other clients. Neither had convinced him that an AdonisMax regimen was going t...

Doctor Thickenstein

by TitusMoorhead on Oct 6, 2020
Sci-Fi & Fantasy

"You're sure this is safe?" Jason asked, shivering as another layer of the frigid gel was slathered over his exposed backside. Victor took his time working the chemical into the other man's taut, solid cheeks. "Safe...ish. We've talked about this...I'm confident the process won't be fatal, but beyond that, no promises." "Is there a reason I can't be doing...

Justine Ch. 01

by SuperVC10 on Oct 15, 2017
Erotic Couplings

Justine Thorsendottir was in Munich for Oktoberfest '74. The genetically gifted buxom blonde superwoman from Southern California with sexual power on par with a W53 nuclear warhead drank beer, and sang along with equally sloshed partiers. She wore a pretty brau-haus outfit tailor made for her exquisite body. Her ensemble was a red and black dirndl, off white...