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Interactive Stories
INTERACTIVE STORIES
Interactive Stories are "choose your own ending" stories started by an Author and continued by any Writing.Com member that wishes to participate. At the end of each chapter of these Muscle Stories, readers are given a few plot choices and must choose the direction of the story. When you come to the end of a storyline, it's your turn to add a chapter!
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Search results for

Muscle Stories

Fanfiction Gender Change
TG, shrink, age, and morph your favourite characters. Now with 50% more Princess Peach.
Rated: 18+
2,773 Chapters
Fanfiction, Erotica
Type: Interactive
Updated about 7 hours ago
*Dollar* 113 GPs per review
Giantess/Growth Interactive
'Too big' is never big enough!
Rated: 18+
328 Chapters
Other, Erotica, Fantasy
Type: Interactive
Updated a day ago
Growing Revenge
What happens when a jock causes an all powerful being to lose a bet?
Rated: 13+
97 Chapters
Erotica, Adult, LGBTQ+
Type: Interactive
Updated 2 days ago
Poké Titans
The Pokémon gang find a strange meteorite that causes muscle growth!
Rated: 18+
125 Chapters
Erotica, Fanfiction, Action/Adventure
Type: Interactive
Updated 5 days ago
How I got my super powers
A socially inept young man or woman gets impressive powers.
Rated: 18+
430 Chapters
Sci-fi, Erotica, Action/Adventure
Type: Interactive
Updated 5 days ago
*Dollar* 75 GPs per review
Wand of Wishes: Muscle Growth
A teen finds a wand that causes amazing muscular growth! Who does he use it on?
Rated: 13+
428 Chapters
Erotica, Teen, Adult
Type: Interactive
Updated 7 days ago
Little Bro Grew Huge
What happens when your little brother suddenly became huge?
Rated: 18+
167 Chapters
Adult, Erotica, LGBTQ+
Type: Interactive
Updated 8 days ago
*Dollar* 75 GPs per review
The Kiss of Muscle Growth
Kyle gains the ability to grow any high school girls' muscles... With a kiss! FMG Only!
Rated: 13+
148 Chapters
Action/Adventure, Fantasy, Sci-fi
Type: Interactive
Updated 9 days ago
His Huge Pecs
A growth story about the biggest pecs ever!
Rated: 18+
90 Chapters
Adult, LGBTQ+, Erotica
Type: Interactive
Updated 9 days ago
*Dollar* 150 GPs per review
Changing Circle of Life
The circle of life moves in mysterious ways. Find out how in this Lion King story.
Rated: 18+
630 Chapters
Animal, Supernatural, Experience
Type: Interactive
Updated 9 days ago
Big boys
A young boy who can change the size of others finds himself in a rather enjoyable position
Rated: E
408 Chapters
Other
Type: Interactive
Updated 11 days ago
Expansion Virus: The Next Generation
In the far future, the expansion virus continues to infect!
Rated: 18+
34 Chapters
Erotica, Sci-fi
Type: Interactive
Updated 12 days ago
MegaMilk
Genetically modified milk causes unexpected growth in those who drink it.
Rated: 18+
295 Chapters
Sci-fi, Fantasy, Erotica
Type: Interactive
Updated 12 days ago
Dominance from Bullying Master
Your gay muscular or fat master dominates you in fun ways!
Rated: 18+
5 Chapters
Erotica, Adult, LGBTQ+
Type: Interactive
Updated 12 days ago
*Dollar* 375 GPs per review
High School of Female Muscle Growth
High School nerd Justin has made a muscle growth formula, watch as the chaos unfolds.
Rated: 18+
99 Chapters
Action/Adventure, Technology, Other
Type: Interactive
Updated 12 days ago
The Growth Gun
A strange ray gun causes women's bodies to grow...
Rated: 18+
232 Chapters
Adult, Erotica, Sci-fi
Type: Interactive
Updated 13 days ago
Video Game Women Grow Muscles
Eh, pretty self-explanatory.
Rated: 18+
112 Chapters
Fanfiction, Erotica, Comedy
Type: Interactive
Updated 13 days ago
Becoming Outgrown
You're trapped somewhere with a boy (or boys) who is smaller than you... But not for long!
Rated: 18+
245 Chapters
Fantasy, Sci-fi, LGBTQ+
Type: Interactive
Updated 15 days ago
*Dollar* 75 GPs per review
Naruto, Completely Different
The same Naruto story, Only with any number of interesting twists, from WG to GTS and more
Rated: 18+
1,427 Chapters
Fanfiction, Erotica
Type: Interactive
Updated 17 days ago
*Dollar* 75 GPs per review
Muscle Milk
Tainted milk is distributed and sold. Anyone who drinks it will experience muscle growth.
Rated: E
199 Chapters
Action/Adventure, Fantasy, Sci-fi
Type: Interactive
Updated 19 days ago
*Dollar* 75 GPs per review
The Superpower Chronicles M/F
You can be either a boy or a girl who finds out you're an alien being with super powers!
Rated: 18+
155 Chapters
Sci-fi, Fantasy, Teen
Type: Interactive
Updated 19 days ago
Universal Program
A program with the power to alter reality and you're about to make some "big" changes!
Rated: 13+
133 Chapters
Erotica, Sci-fi, Adult
Type: Interactive
Updated 19 days ago
Star Wars: the FMG awakens
The ladies of Star Wars undergo some much needed growth.
Rated: 18+
67 Chapters
Fanfiction, Other
Type: Interactive
Updated 24 days ago
hotel anthro STINK
you are in a hotel filled with anthro
Rated: 18+
173 Chapters
Animal, Fantasy, Adult
Type: Interactive
Updated 27 days ago
Pokemon: The Candy Chronicles
A special batch of Rare Candies has been unleashed...
Rated: 18+
33 Chapters
Fanfiction, Adult, Erotica
Type: Interactive
Updated 28 days ago
Harry Potter Transformations
Harry and his friends experience muscle growth and many other transformations!
Rated: 18+
479 Chapters
Fantasy, Fanfiction, Teen
Type: Interactive
Updated 28 days ago
Anime/Game Girls get strong and busty
Anime and Video Game girls become Strong and Busty!
Rated: 18+
142 Chapters
Erotica, Fanfiction
Type: Interactive
Updated about a month ago
The Magic Pen
What happens when you find a pen that makes everything you write come true?
Rated: 18+
4 Chapters
Action/Adventure, Erotica
Type: Interactive
Updated about a month ago
Hot Male Weight Gain
A collection of Weight Gain (Muscle, Fat, or Both) of various males in different genre.
Rated: 13+
1,347 Chapters
Fantasy, Erotica, Entertainment
Type: Interactive
Updated about a month ago
High School Musical - Expansions
The cast of HSM grows in different ways, choose how they're going to grow.
Rated: 13+
6,107 Chapters
Teen, Fanfiction
Type: Interactive
Updated about a month ago
BodyMod: The App
A new app allows you to change the bodies of you and your friends as you please...
Rated: 18+
42 Chapters
Adult, Erotica, Other
Type: Interactive
Updated about a month ago
The cave of dreams
A boy falls into an ancient cave and recieves the power to change the world and people.
Rated: 13+
44 Chapters
Fantasy
Type: Interactive
Updated about a month ago
*Dollar* 150 GPs per review
Total Drama Muscle Growth
This is an MG Story for Total Drama! Feel free to add!
Rated: 13+
77 Chapters
Other
Type: Interactive
Updated about a month ago
TV Shows Male Expansions
The guys from different TV shows as they grow in different ways. Reward for good chapters.
Rated: 13+
6,809 Chapters
Teen, Fanfiction
Type: Interactive
Updated about a month ago
Full Moon Muscle
A wolf anthro grows muscle during the full moon! MG ONLY!!!
Rated: 13+
69 Chapters
Mythology, Animal
Type: Interactive
Updated about a month ago
Wand of modification
A wand changes reality as holder wants changes lives of all. Open to anyone to add10/3Edit
Rated: 18+
355 Chapters
Adult, Teen, Other
Type: Interactive
Updated about a month ago
A boy and his Dad
When the girls are away, your father will play
Rated: 18+
49 Chapters
Men's, LGBTQ+
Type: Interactive
Updated about a month ago
Extreme Size Differences
A slightly different story that focuses not wholy on the growing aspect of everything.
Rated: 18+
105 Chapters
Adult, Erotica, LGBTQ+
Type: Interactive
Updated about a month ago
Generation XL
An entire generation of boys are about to grow bigger than the last one!
Rated: 18+
82 Chapters
Adult, Erotica, LGBTQ+
Type: Interactive
Updated 2 months ago
Sam's Size Change Adventures
Sam gets mixed up in size changing including height change & muscle change.
Rated: 18+
577 Chapters
Action/Adventure, Fantasy, Sci-fi
Type: Interactive
Updated 2 months ago
Male Muscle Growth
It is what it sounds
Rated: 13+
11 Chapters
LGBTQ+, Teen, Young Adult
Type: Interactive
Updated 2 months ago
Christmas Transformation
Santa Claus makes your Christmas wish come true. 450 GPs for every good non-choice chapter
Rated: 18+
61 Chapters
Other, LGBTQ+, Fantasy
Type: Interactive
Updated 2 months ago
Persona 4: Growth Edition
The girls from the RPG title, Persona 4, are about to experience sudden growth spurts.
Rated: 18+
796 Chapters
Fanfiction, Fantasy, Supernatural
Type: Interactive
Updated 2 months ago
Superman's BIG Problem
Superman is the ultimate superhero. However, he is about to face some BIG trouble!
Rated: 13+
95 Chapters
Fanfiction
Type: Interactive
Updated 2 months ago
Medication Madness
College girls bit off more than they can chew with body changing science project.
T
Rated: 13+
5 Chapters
Erotica, Sci-fi, Technology
Type: Interactive
Updated 2 months ago
*Dollar* 113 GPs per review
Star Wars Male Expansion
Expand the males of Star Wars.Come and add!!!
Rated: 18+
96 Chapters
LGBTQ+, Other, Fanfiction
Type: Interactive
Updated 2 months ago
The little bottle
Group of college kids renovating a house find a bottle of Jumbo Gro. Hormones take over
Rated: 18+
80 Chapters
Adult, Erotica, Action/Adventure
Type: Interactive
Updated 3 months ago
Muscle Growth adventures
Just enjoy the growth
Rated: 13+
3 Chapters
LGBTQ+, Teen, Young Adult
Type: Interactive
Updated 3 months ago
*Dollar* 75 GPs per review
Kristi's Power
Kristi has the power to grow the muscles of every boy in high school!!!
Rated: 18+
180 Chapters
Fantasy, Supernatural, Sci-fi
Type: Interactive
Updated 3 months ago
Giant Muscle Guys
Pick a guy and watch him grow in size and muscle.
Rated: 18+
1,276 Chapters
Fanfiction, Action/Adventure
Type: Interactive
Updated 3 months ago
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Muscle Stories

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