Izuku walked down a different path home. Going under an underpass he silently walked under. Too deep in his own thoughts about repairing his notebook to notice the gurgling and oozing man-hole cover.

'Ah. A new body to inhabit? And quite a tiny one too? Oh I could just gobble him up!' The sludge villainess cooed. She swiftly moved to ensnare him. As she wrapped around his torso before he could notice, then she worked her way down-

"WHAT THE FUCK!?" The Sludge Villainess had taken over tons of boys. Most of them were around 4 inches though probably because they were scared shitless.

This kid. He had a fucking magnum under there!

She released his torso and stopped trying to get into his mouth. Allowing him to breath.

"HELP! HELP! VILLAIN- Ptu!" Izuku found the villain cover his mouth again. This times he wondered if he'd stop yelling this time.

"Look. Kid. Don't fucking scream cause I need you to do something for me aight?"

Izuku had no choice but to nod. Wondering what she wanted from him.

"I'm gonna go to those bottles over there. And I'm going to wring your magnum dry. No funny business aight?"

Izuku nodded to that as well.

As the sludge villainess slowly released her hold on his mouth Izuku asked a few innocent questions.

"E-erm. M-ma'am. Wh-what did y-you mean b-by "W-Wringing my m-magnum d-dry?" He stuttered out. Terrified yet curious at the same time.

". . .You're shitting me aren't you? Playing the innocent?"

"I- I don't k-know what y-you're t-talking about?"

"Kid you have a dick 9 inches flaccid.Why in the fuck are you pretending to be some virgin? How aren't you in a locker room or something getting your cock milked?"

"W-Wait what?!" Izuku shouted which lead to the villainess covering his mouth again.

"Well since you don't know how to fucking follow rules." From within the sludge she began ripping off his uniform's pants. Leaving them on the floor. She slowly and sensually brought down his underwear all while solidifying her entire body.

What came back was a voluptuous big tiddy slime girl currently towering over Izuku. She then purred something into his ear that he would most likely remember in certain dreams .

"Then get ready stud. Cause you're not gonna forget this first time~" She pecked Izuku on his freckled cheek leaving a small trail of slime. And she made a tentacle/ Coiling and wrapping around Izuku's dicku and motioning it to tighten and pull, making it feel like she was sucking on his cock.

"Mmmpppph!" Izuku moaned at the stimulation. Having never masturbated much since he was too busy with getting his notebook thrown out windows and the whole bullying thing doesn't do well for his libido.

"Ooh? You like that don't you? Then allow me to introduce to you a trick that got me tons of dick in highschool: "The Full Body Experience!."

She retracted her tentacle and shoved Izuku's cock into her pussy half-way, positioned it downward and through her slimy taint straight into her anus, which she shrunk herself and poked the bolgy wolgy in her body between her slimy tits, Which she then began to suck the tip of said bulge.

"MPPPPPHHHHH!" Izuku had basically all his first times related to his penis entering a woman all at the same time. He felt the warm slickness of her pussy, the tightness of her butthole, the plush and softness of her slime tits. And the rough sucking on the tip of his cock.

Izuku exploded so violently that his cum burst through the slimy bulge and into her mouth. Which thanks to the pressure went back through her pussy, anus, and essentially creating a loop Izuku or the Slime villainess couldn't begin to describe how abso-fucking-lutely great it felt.

The Sludge Villain released her hold on the teen's mouth. He was panting yet surprisingly his cock was still as rock hard as before. SV was utterly exhausted since there was a reason she kept taking people over instead of just walking around in her humanoid form. Suddenly Izuku bent forwards. Panting and humping on top of her like a dog in heat.

"I- I can s-still k-keep going!"

"W-wait let me t-take a breather- - Oh fuck!"

Izuku shoved his fully erect 11 inch magnum dong back into her slimy pussy. He fucked and thrusted all while grabbing onto her tits for leverage. SV began laying onto the dirty pavement wondering how in the fuck was he suddenly went from being an innocent bean to a fucking sex god!

Izuku proceeded to fuck and fuck and fuck for a few more minutes. Then All Might appeared.

". . . I'M JUST GONNA GO . . . "

All Might would never remember later giving OFA to the same kid he saw bloating the cum sludge villaness.

Meanwhile the Sludge Villainess laid low for a long while. After taking some pointers from the kid she decided to, erm, dye herself with his cum. Forming a disguise whilst somehow maintaining her humanoid form for longer periods of time.

Boy oh boy. She'd never forget that little rabbit.