Futa Muscle Growth Stories

52,040 results
Orientation
Length
Source
Infinite Scroll

Lab Rat

by agbsyamaha on Dec 28, 2017
Transsexual

("All of my writing is on hiatus until further notice, however, the story is still here and fully available. Any interaction, be it a like or a comment is immensely appreciated! If you have an idea for a chapter, be sure to let me know and I'll see what I can do! That being said, enjoy "Lab Rat"!) "Dear Jason, Congratulations from our com...

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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...

Growing Together Ch. 08

by sexgundam666 on May 30, 2018
Sci-Fi & Fantasy

Morning finally came. A blessed relief to the futa who sat, curled up in a ball, on the bathroom floor to hide away from her girlfriend's relentless libido. Hers wasn't any better. Alisa's erection had remained stoic throughout the night, leaking pre-cum into a puddle and waiting for her self-control to crack. The possibility wasn't something she even entert...

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...

Miss TallyWhacker's Academy for Futas!

by Sex-Shooter on Apr 13, 2020
Transsexual

As you know, Futanari are hyper sexual mostly female humans who have both cocks and vaginas. Because of their hyper-sexual, nymphomaniac natures, they are required to live in different areas far area from the general populace outside of work, especially for their education. Young futas are the most "dangerous" of futas given their developing minds,...

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Amy: The Amazon (Usually) Ch. 01

by sexgundam666 on Apr 10, 2018
Sci-Fi & Fantasy

Author's Note: This story was requested by Heromanbunny. *** Amy hugged her girlfriend tight and bounced her softly. The Amazonian futa's hands coiled around Amanda's waist, fingers almost touching, and felt it as her cock rammed up her lover's luscious canal. Just like her height would imply, Amy was endowed well beyond most futanari. Her cock stretched A...

Be Careful What You Wish For Pt. 02

by DontMindMePls on Sep 14, 2020
Fetish

This is a continuation from 'Be Careful What You Wish For'. It was originally supposed to be a one-off, but I thought it was too hot to leave! This one has some heavy BDSM elements, and has some pretty dark themes, so if that's not your thing then maybe skip this one. But if it sounds like your thing, then enjoy! :) All the characters are over 20 in...

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...

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Kelly’s Blue Book

by DemoonMunkay on Jan 28, 2019
Miscellaneous

(Author’s note: I’m going to try something weird here. The story is public and I’m going to try to be as hands off as possible, meaning I won’t post very many chapters. I’ll fix typos where I see them but the rest is up to ya’ll. Let’s see those imaginations work.) Chances are if you had any sort of childhood where “What ifs” took place you’ll have heard thi...

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Finding the Spark Again

by sexgundam666 on Mar 6, 2018
Sci-Fi & Fantasy

Author's Note: A story requested by a reader. *** Jennifer rolled over onto her side, facing away from her girlfriend. She felt her do the same, their butts pressing together, though it did nothing to add intimacy to the night. After a failed attempt at riling up her lover there was no redeeming it. All they could do was try and sleep, despite Jennifer's l...