The hero academic

Izuku groggily wakes up as looks over at the clock, noticing the time as 12:05, meaning he woke up earlier and should just go back to bed. Izuku tried that but something felt off, he tried to get up and off his bed only to fall face first and hit the floor. He then got up went to his bathroom expecting to look at himself and see his normal self, but all he saw was something he did not expect.

He was made of slime

Izuku looked like, well, he looks like himself just with his entire body made of a forst green slime, including his hair. His eyes were an emerald green color and stood out like a sour thumb compared to his skin color.

He was about to scream before he covered his mouth due to just how late it was. He wanted to get help but the teachers would probably have no idea on what to do, plus they were probably also asleep right now so that didn't help either. Instead he went to the next best option.

Momo Yaoyorozu

Not only was she the smartest person in class but she wasn't that far of a walk away. Izuku want to his door, opened it and walked to his fellow classmates room as quietly as possible.

Once he got to her room and tried to open it, he learned that she locked her door, which made sense since both Denki and Mineta are perverts. Izuku immediately got an idea and, using his new powers, squeezed his body underneath the door frame.

Once he solved that problem he then quietly approached his friends bed before tapping the sleeping girl on the shoulder. That didn't work so he than tied whispering in he ear

Izuku: Momo, uhm, I need your help with something

Thankfully enough his voice was still the same as before

Momo: no dad, five more minutes

Izuku: Momo, it's me, Izuku

The girl began to stir as she woke up from he sleep and looked her friend dead in the eye. She was wearing a white night gown that went to her knees so thankfully Izuku didn't lose his innocence on accident.

Momo: Izuku, are you, okay? You look like you—

Izuku: made of slime, yeah I know

The rich got out of bed before walking around her friend. She kept examining him with a single question in mind.

What does he feel like.

Momo: can I, touch you?

Izuku: uh, sure

There was a hint of shaky ness in his voice as the rich girl began to poke at her new slimy friend before enveloping him in a hug. He felt very slimy as to be expected but he also smelled really goo. The smell Izuku gave off made him smell very sweet making her rally hungry. This smell coupled with how late it was made her bite Izuku's arm by accident.

After she bite him, Izuku's whole body began to bubbly before getting sucked into the girls mouth like a vacuum. The girl watched in horror as she consumed her friend by accident, his clothes falling to the ground. She then fell on her bed before looking as he stomach, which now looked like she was pregnant with a child.

Momo: I just, ate Izuku

She then fainted due to the shock of it all.

——————————later————————————

Izuku began to stir as looked up at the ceiling, noticing himself inside Momo's room and on her bed, he wondered what happened after whatever Momo did but what next came as a shock. He looked down to not only see he was human, but he had boobs and a massive guy as if he were pregnant. He then, quietly, ran to the bathroom before looking in the mirror as the face of his friend stared back at him. The only difference was the fact that her eyes were an emerald green like his.

Izuku: oh. My. Gods, I'm Momo

The boy turns girl stare at the mirror for a solid minute as he began to pose. Sure he turned into one of his friends and now he needed to act like her which was the hardest thing in the world but there were two slight problems.

1). There was still the issue of getting out of Momo

2). The massive stomach he had going on that was impossible to hide

He kept thinking as weird thoughts began to cloud his mind. He knew it was a bad idea and he was not a pervert so he was against it. He began to look down as he looked at the clock, noting the time as 12:15, meaning only ten minute have passed since he got her. He looked down at his new body before he spoke.

Izuku: sorry Momo

He than thought is something, does he still have One For All. He powered and saw the familiar green lightning go across his new body.

Izuku: okay, that's done

He than tried Momo's quirk which worked like a charm as he made a small iron pole about two inches wide and a foot long.

His next step was to try and get himself out of Momo's body. He tried thinking of what Momo could have done before thinking about how she bit into him. He then tried to regurgitate himself by chocking but it didn't work.

Izuku: c'mon, I need to get out of Momo's body, wh—

He was cut off when he was launched out of her body and into a wall within her room. The rich girl fell onto her bed again as she looked back at Izuku, who was now a green puddle on the ground

Momo:(whisper yell) OH MY GOD, Izuku I'm so sorry I don't know what came over me

Izuku: it's fine, at least I now know how to get out of your body, just try not to eat me again.

Izuku began to reconstitute himself into a more human shape. The slime color change back to his normal skin tone as Izuku went back to normal. The boot looked at his hand as he could see a normal skin tone on it.

Izuku: hey I'm back to norm— Why are you starting at me like that?

She than pointed down wards at himself as not only was he naked, but he also had boobs. Izuku walked into the bathroom to look in the mirror a second time. His body's as still muscular, he still had his man parts and his head was normal but anything else was more like Momo's body than his.

Izuku quickly grabbed his clothes and put them on as Momo turned around and looks away. The boy walked out as he tapped Momo's shoulder.

Izuku: hey, you okay

The girl turned around at looked her friend, who was now eye level with her, in the eye.

Momo: can we, do it again?

Izuku: heh

Momo: I dunno, I really like that feeling, whatever that feeing was. It was if when you were in my stomach that I was at peace. I know it's asking a lot but I'll let you do whatever you want when you posses my body okay?

The boy though about it for a moment before taking his clothes off and focusing on his slime form before retuning got said form. He turns wiring only to see Momo having taken her clothes off.

Izuku: alright, let's do this

He walked forward only to trip on his own feet and collide with Momo's body as the Slime merged with her skin. He added to he already amazing boobs and ass as they grew. Her thighs got larger as her entire body got muscular. The most noticeable difference was Izuku's cock in between her legs that was at least 18 inches long and two inches thick. Momo bolted to her mirror before examining herself as Izuku's face appeared on her stomach

Momo: uhm, Izuku, you okay?

Izuku: yeah, that jus—

Izuku saw himself as he began to think Momo looked really hot. He then looked up only to see Momo struggling to do, well, whatever it is she wanted to do.

Izuku: hey Momo, can you move at all?

Momo: no, I can't move my own body

Izuku immediately began to pose Momo's body with the girl getting frustrated as he began to move her body against her will. Izuku got an idea as he tried to focus on growing one specific part of her body.

The muscle that was on Momo's body disappeared as her boobs grew bigger and bigger to the point the looked like the size of watermelon's as her butt expanded. She also got taller as well with her only about five inches away from the ceiling. She now looked even bigger than Mrs. Midnight

Momo: wow, Izuku, I look amazing

Izuku: do you hate me?

Momo:(confused) why?

Izuku: I possessed you body and now I changed it and all of this is out of your control. If you wish for me to leave I can

Momo: actually I kinda like it

Izuku:(shocked) really?

Momo: I mean, it's not that bad. You just made me looked like Midnight

Izuku: well, anything else you want me to add to?

Momo thought on it for a moment before deciding.

Momo: I can you add more body part, like arms or boobs?

Izuku: let me see

Izuku did a few adjustments before Momo's height and figure began to shrink as a new pair of boobs appeared underneath her old ones. She than felt more arms on her side as they began to move. Momo now has four boobs and four arms and was about Shoji's height.

Momo: wow, this feels

Izuku: weird?

Momo: amazing actually, can I control them

Momo tried moving her body as he new arms began to grip her new set tits. Momo chuckled before remembering Izuku was still here.

Momo: uhhhh, don't tell anyone, please?

Izuku: okay and don't tell them about what I did either

Momo: okay

Izuku: I wanna try something

Momo: what?

Izuku: get me off of Momo's body

Izuku shot off of her body as he formed back into the form he had before fusing with Momo.

Izuku: great, there still there, well le—

Momo: Izuku?

Izuku turned around and his eyes widens as he looked at Momo. Her body was still the same as before he infused with her, extra part and all.

Izuku: uuuuuh, well, that's gonna be hard to hide

Momo: please fix this

Izuku: hold on let me try something

He extended a hand as he called back the slime as her extra adjustments left her and returned to Izuku. Izuku than took on the extra parts as he grew in height and gained extra parts.

Momo: wow, you look good

Izuku: thanks, but if I use this form we might have to explain to them about what happened here

Momo:*sigh* okay, that's fair

Izuku: but I'll tell them about how we just did it as an experiment, okay

Momo: thank you Izuku

Momo looked at the clock as she noted the time as 30 minutes past midnight

Momo: you should probably head back

Izuku: yeah probably

Momo: I'll get the door for you

Izuku: thats okay

He went back to his slime form which looked like he normally look which was good. He put back in his clothes as he waved Momo goodbye, slipped under the door and went back to his room. He opened his door room and quietly closed it before going to his bed and falling asleep.