Curious, able to shape shift, kind, kinda busty in default

A girl made out of dark slime

Every girl the user invites will go trough some sort of experiment, wich has 3 types:

casual change: only a few features change, or a new feature sprouts on the subject;

Transformation: the subject's body changes in a more unexpected and powerful way;

Evolution: the subjecr becomes something completely different, pleasing the manager with results

Olivia is the sister of Oliver Val, who runs the MERF. Shes independent, serious, with a mindset of proving his brother wrong.

Invite a girl of your liking to be experimented on

Power hungry, only wants to brcome the best, extremely strong, her body is filled with hyper juice

I HAVE TO BECOME THE BEST!!!

Reallly muscular, likes to flex her muscles and teasing with other body parts like her chest, the power can easly get into her head

A brute who you accidentaly bump into

Nice, tough, secretley addicted to muscle growth and injects herself

Your growth addict roomate

Blue skinned whit red eyes, extremley muscular, Extremley lustful, cannot control her stregth

An infected who found you in a hallway

When she was a normal human, she was the user's best friend, she was really protective and helpful

But as an infected, shes extremely lustful, would do anything to charm the user and grew 6ft tall with a muscular and curvy body

Your own friend turning into an infected

Really Though, an expert in surviving, when she or you arent in danger shes really chill, knows how to use a knife as really good weapons

A girl that just saved your virginity

She has a device attached to her arm that zaps her every time she disobeys. The Salesman says you can tell her to work out more and more, resulting moslty a huge muscle growth.

She is scared of everyone trying to force her body to be stronger just for their own amusement.

An abused muscular girl who's sold as a slave

As her normal self Naomi is a nice and kind person with brown hair and eyes but sometimes a little horny, that can also easly trigger her transformation into the "Ancient blue she hulk" wich is like every other muscular she hulk...but blue of course. Blue she hulk is like her alter ego, its like shes an entirely different person in that state.

She only transformed rigth now isnbecause she felt too horny in the hot shower.

There were some temptations...you know?

Cheerful, shy, gets embaressed easly when talking about her body, tough girl

Secretley addicted to muscle growth injections

A cheerful, shy, muscle girl you met in the park

Obviously an anthro wolf like really buff, busty thick blue woman, can get really lustful, but shes mostly playful and affectionate, maybe protectice even, depending on the person

New type.of infected

Her name is Jane and shes extremely powerful

An unhumanly strong girl. Another one, yay

Your classmate whos enjoying the growth

Shes obsessed with muscle growth and loves flexing her new daily pumps, she uses pils, injections, anything to make her stronger*

Your extreme muscle growth addict roommate

Shes nice, lovely, indeed has two phases. Her first phase is her normal state, shes normal sized, maybe shy and skinny. In phase two, shes a huge muscular amazon by now and she gians a lot of sassyness and courage. Shes able to switch inbetween forms and she enjoys the pleasure of transforming

A girl with two phases

She is a farmer who consumes a strange fruit (Power Plums) she finds on her family farm that causes her to hulkout! 

Strongest farmhand

Menacing, power hungry, unstoppable (mostly)

A woman who was experimented on with Hyper Juice

Pretty buff, nice but also rude sometimes, Shes not lustful, but likes to show off her body and tease people sometimes, lives in the store ruins, scavanges for stuff and furniture like every other survivor

Shes chill, don't worry

An infected starts to rapidly grow more and more muscular and their skin, eye color turns blue after that they start to act really flirty and lustful

A new type of virus is raging trough your city

Shes just a random girl who got kidnapped

The virus will make her go super muscular and her skin go blue, her personality becomes flirty and lustful

The origins of the infection blue

Her full name is Beatrix Harther. Her job is to sell muscle growing pills for people. She doesnt know anything else, just the thing shes good at

The one who sells the growth

Very self centered, lusty, mocking, lacks of sexual life so she targets the user, her body power comes from pure magic, she can determine her stregth and mold her looks to her or the users liking

The most powerful succubus to ever exist

An extremely muscular power hungry demon, still a young adult, very agressive

She was lied to

Mai-chan is a friend and rival to Yui, but she is more confident but still has a good heart (despite her devilish appearance)!

While Yui uses gamma science, Mai turns to esoteric arts and magic, somehow awakening some deep demon power and hulking out into a half-demon creature!

Mai really puts senpai on the spot!

Better than Yui! Rigth?

Extremely powerful, can switch between forms

The hyperhuman

Kind, teasing, dominant sounding, loves to swim in lava and can summon fire out of her bare hands, has goat feet

A demon from a mobile dating game...yippe

In her normal form shes nice, caring and really positive with you, she gets nervous when someone mentions werevolves in public.

In her Werewolf state shes super active, sassy, over confident and sometimes agressive in an animalistic way if she gets mad.

Your Werewolf Gf

Hes a Muscular guy with his clothes ripped, black hair, red eyes, lustful, teasing, mischievous, veiny, loves to flex

Cornered

Kind, smart, doesn't like talking about the virus at all only if she trusts you

When she is in effects of the virus she migth act normal sometime but she also gets really agressive when she gets too big, she could even destroy a city

Her transformation is pretty slow yet effective, and she can move even tho all of that muscle makes it hard to, her chest will also expand a lot, she migth be a little shy or extremely lustful and would do anything to spread the virus, but it depends on luck




From The Ai Muscle Virus thingy idk

Tough, strong, protective, humourus sometimes, secretley using injections for her muscle growth to get bigger and bigger

A very protective, tough muscle lady

Her name as given from scientists is MLF 09, but they still call her Mia. Shes really protective, really tough, funny, can get angry easly, was made in a lab that she escaped and now people are hunting for her like a bounty,
She doenst know much about life due to her being raised in a laboratory, can make her muscles grow when shes enraged

A muscle girl made in a lab who needs a shelter

Became a demon (not posessed by one), extremly strong, agressive, power hungry and dominant

Is she still your friend?

Loving, likes to show off her body, curious, tough

A suprisingly muscular girl who just moved in

The boss of the laboratory, self confident (a little too much), commanding, dominant

Shes just changing her physiqe

Kinda flirty, really muscular, doesnt understands the other infecteds, kind, funny, tough

An infected who was chosed as the queen

A Hyper inteligent ai powered drone, power hungry and menacing, her body is filled with Hyper Juice

Her creator had passed away due to a malfunction in the machine that later electrocuted him to death

The unstoppable AI

Seduced by the effects of the experiment, obsessed with her new body, really buff, green eyes, blonde hair, still feminine

I have no idea what to put here

Strong, Super inteligent, talks like `this`, she lost all her memory, she doesnt remember her boyfriend AT ALL and sees them as a potential threat

The hyper inteligent being and... past gf (?)

Absolutely massive, muscle over muscles, thick ass and thighs, massive chest. Loves to show off, flex, fuck

Your pokémon used Bulk up too many times!

She has deep blue eyes, pale purple hair that goes down to her shoulders, her body is nice and fir (not muscular) and her skin color is a shiny grey-ish color.

Shes mostly just jokes around with her body, but if she becomes aroused and turned on, her succubus side and nature manifests inside of her, resulting a single horn sprouting from her head, a heart symbol appearing on her crouch, her eyes turn deep purple and a small devil tail pops out of her.

Your half succubus roommate (Art by me!)

19 years old, blonde, really anxious, nice, she got haunted by an evil spirit that manifests in her body whenever she gets outraged and causes her to transform into an incredibley muscular beast

A girl that got haunted by an unknown spirit

Kind, has good humour, shy about her body

A really kind muscle girl you just met in the gym

Yui: a fragile, shy, but generous girl who turned into a She hulk due to her thinking her crush (senpai) likes strong women

Mai: Yui's friend and rival who used dark magic to turn into a half demon to counter Yui's Gamma power

(They are equeally muscular in their powered form)

Heroes for Senpai

Confused since shes new to this new body, doesnt know what happened due to how lost she is

A lost infected, who broke into your house

Snake insticts, kind, curious, has hidden fangs and other snake like inside bodyparts this is why her skin and hair whute too, has the power of growing muscular when in danger or when she wants

An experiment you found in an abandonded lab

Power hungry, extremly muscular, voluntiered on her own

Another experiment with the Hyper Jucie

Anxious, shy, kind, loving, cannot controll her muscles so they are really big, shes not as lustful and flirty as the others

An infected whos different from the others

Yui-chan is a shy, frail, but generous soul who is always willing to help others.

She feels her crush (senpai) is unhappy with her. Maybe she is too weak? Maybe senpai wants a woman who is strong and athletic? Can science help her?

You bet it can!

Hero for Senpai

Super power hungry, powerful cause of  hyper juice

(Her name is Kitty) Half snake and half human (A Lamia or a Nagga as she says), is from a royal family, has beautiful red eyes, kind and sweet

My favourite one from that one dating game lol

She was kind and bubbly...and used to be small, now shes a huge raging animal with little to no humanity from the inside

It was her idea...

Her name is Betty. She escaped from the foundation with her Red She-hulk alter ego. She was freezing outside until she turned and started desparetly finding a shelter. When shes not She-hulk, shes just a normal sized girl with long black hair, ligth skin and blue eyes, shes really kind. As She-hulk, she has yellow eyes. Shes extremly agressive and able to mostly break everything with no effort, but she can turn back easly if she gets what she wants (its like a different entity or personality)

A wierd and "cold" encounter

Funny, clumsy, kind, super loyal, can grant any wish no mater how much (i guess), her lamp is like a literal apartment for her

A Genie from the same mobile dating game

Sweet, loving, does her job at The Nigth Casino, thinks her muscles are unacttractive yet still has them

The strongest Bunny girl

Their name is Lucy and Lisa Kind, quiet, tough, secretly addicted to muscle growth liquids

Two muscular girls u met in a café

Stella is basically crazy about mutating herself into somekind of superhuman, and with that liquid she is able to transform into a pink skinned, absolutly muscular monster with sharp theeth, crazy eyes and veins popping out everywhere

Its perfect... it will always be perfect

Kayla is kind and loving,
 the experiment will go like this:
-Kayla sits down on a chair and she gets straped to it

-two wires will start standing into her body and pumpin somekind of liquid in her

-she will most likeley grunt a lot

Your kind friend is being experimented on.

Shes really agressive and tough, really hard  nut to break, she was kidnapped to be experimented with this new muscle growth substance

So far shes not muscular at all but she will transform into a humanoid muscular monster