Okay, a few things before we start. One, this was a requested story, though one I'm actually excited to write.

Two, this was the first place drabble poll winner, making it the record holder for fastest movement from drabble to full story.

Three, I know it's spelled Izuku, I'll be spelling it Izuka for a more feminine feel.

Four, I'll do my best to skip over the bits we've already seen. Sure I'll try and add little changes to specific events here and there, but for the most part the bulk of the detail will go to lemons so I don't spend too much time writing about what you can already see watching the actual anime.

And lastly five, this story will take more time than my other, shorter stories. It'll probably only be updated once a week unlike the two chapters per week that others get, and probably won't even get its second chapter immediately after this one (as at time of writing I've got a certain monster girl finale to write that'll probably take me all week).

Alright, with all that settled, let's begin properly.

Izuka did not consider herself to be an especially lucky person. In a world where eighty percent of the entire world was born with their own super power, referred to as a quirk, she was born without one.

This had rather kneecapped her hopes of becoming a hero, though it didn't stop her watching the videos of All Might, the number one heroine, nor her studying of other heroes, nor her applying to UA, the top hero school.

It had attracted the wrath of Izuka's regular bully. Bakugo had had it out for Izuka since they were kids, hating how she could be so upbeat without a quirk, and determined to break that spirit down.

But even with her, nothing ever came too far. Cruel or not, Bakugo was still aiming for being a hero, just like Izuka.

It was while walking home from school one day that the quirkless futa received her first moment of true action and excitement; though it came in the form of something admittedly horrifying on a number of levels.

As she crossed under a large bridge, she heard a sound from behind her. Turning, her eyes widened as she watched a manhole cover lift up, a dark green slime pouring up out of it and taking a roughly humanoid shape in front of Izuka.

There was a split second of silence as both of them realized what the other was. Then Izuka spun on her heels and tried to sprint away from the slime beast before he could do anything to her.

But the slime quirk was faster, stretching across the distance like tendrils and ensnaring the futa schoolgirl. He reeled her in, chuckling to himself at how she looked as she tried to struggle free of him, really giving it her all. It was completely useless, and amusing to watch.

"You'll make a great skinsuit," He said, tendrils holding her body still and mouth open for him to flow into her body and take over from the inside, "No one will suspect a thing. Hold still, it'll only hurt for a bit, then you won't feel anything ever again."

He really had only intended to slip into her body and parasitize her. He'd had no other agenda. But as he moved close to her to begin the process, something struck him. Without knowing that someone's quirk could possibly be causing it, the slime man assumed it was just a normal rush of excitement from being in complete control of the captured girl, and with this belief in mind, figured he might as well take advantage of the situation while he could.

After all, he rationalized to himself as his slime tendrils began pushing into Izuka's clothing, her will power would be much easier to overcome once she'd been broken physically. Izuka let out a terrified whimper as she felt the thick, slimy tendril push into her underwear and press against her slit, realizing what he was about to do to her.

She tried to beg him to stop, but her mouth was silenced by the man's member, made larger and thick from the slime, thrusting into her throat as the tendrils rammed into her small pussy, fucking her from both sides.

He moaned happily as he began fucking her throat roughly, figuring it'd probably be nice to relieve his pleasure before he had to spend however long trapped inside her body for stealth. There would be no telling when he'd next get a chance to leave her and have fun on his own again.

Perverse thoughts of what he could do with a female body suit, granting him access to female only locations, flooded him mind, making him thrust harder into her throat. She gagged around him cock, hated the feeling of being used like the monster's toy.

The thoughts only got more perverted and exciting as his slime tendrils explored Izuka's body and realized she was a futa. Tendrils wrapped around her cock painfully tight, squeezing it hard to molest her there as well, her pussy already being stretched painfully by the slimy tendrils inside.

The slime monster would not get a chance to reach his climactic finish however. Before he had a chance to, the manhole cover he'd snuck out of exploded upwards, embedding itself in the roof of the bridge.

Looking over, the slime man's blood went cold as he saw who was stepping out of the sewer. It was All Might herself, the world's top heroine. The slime beast kicked himself mentally for letting lust cloud his judgement. If he'd stayed focused, he'd have been able to possess the girl and be on his merry way by now.

All he could do now was lift Izuka's body with his slime tendrils and try to run off with her to All Might. His escape was stopped by the shocking force of All Might's Texas Smash, a punch to the air that fired such intense wind pressure that his slime body couldn't even hold itself together, popping like a balloon and freeing Izuka, who passed out in part from shock and in part from the force that hit her as well.

When she woke, All Might had trapped the slime villain in plastic bottles and signed Izuka's hero study book before she'd even asked. All Might had been about to super jump away, but Izuka had too many more questions to ask to let her get away so quickly, and so clung to All Might's waist as she jumped.

Neither of them noticed how Izuka's flailing as she flew through the air attached to All Might dislodged the bottles containing the slime villain, causing them to fall into the alleyway below them at the time.

All Might landed, and before she was able to answer any of Izuka's questions, or even just get away from her, the time limit ran out. In a puff of steam, All Might's form vanished, leaving her a thin, unhealthy looking woman in baggy clothing.

Izuka's jaw nearly dropped to the ground at the sight of this, and with no real alternative, All Might explained that she could only maintain her powered up hero form for about three hours out of the day, an off the record battle with a villain five years ago having damaged her badly.

Izuka was shocked by this, but it wasn't this revelation that deflated her. It was the following words from All Might, the heroine saying that some villains just can't be beat without power, that she didn't believe Izuka could become a hero without a quirk, that truly shut her down.

With Izuka promising not to let the press know about All Might's weakened form, the two of them left the building All Might had jumped them to. Not long after though, both met up quite by coincidence at the same place again.

The slime monster had escaped, and had chosen a much less subtle target this time. He was attempting to merge with the body of Bakugo, the explosions from her hands as she tried to escape making the area too dangerous for any of the other heroes to get in and help despite several attempts from all of them.

The heroes resolved to wait for someone with a more suitable quirk to come and help, and even All Might felt that it was helpless since her time limit for the day had been reached. But Izuka couldn't stand by and watch Bakugo get taken over.

Her feet move before she even knew what was happening, and she rushed towards the monster. Mimicking the primitive techniques she'd studied form other heroes, Izuka threw her bookbag at the slime beast's eye, preventing it from attacking her while she began trying to free Bakugo from the slime.

She didn't succeed, but seeing her trying at all gave All Might the push she needed. 'Time limit be damned.' She thought as her body returned to its full powered state, rushing in to defeat the monster in a single powerful strike. It hit so hard that the resulting updraft altered the clouds, causing it to rain.

Shortly afterwards, when All Might had been able to sneak away from the paparazzi, she'd found Izuka. She felt it important that Izuka know that she'd played just as big a role in saving the day as All Might had, that All Might wouldn't have even tried if Izuka hadn't.

And after she made sure Izuka knew, she told her something else as well. "Young Midoriya, you too can become a hero."

It was exactly what she'd needed to hear her entire life, and hearing it from All Might brought her to tears so intensely she almost didn't hear All Might's following words of, "I deem you worthy of inheriting my quirk!"

All Might had explained how her quirk, One for All, worked, and how she planned to pass it on to her. To prepare her body for it, and for the UA entrance exam, All Might was putting Izuka through an intense training program that, among other things, included clearing the various kinds of garbage from a once beautiful beach.

It was hard, monotonous work, but Izuka knew she could do it. If anything, having a routine that would make her goal actually possible allowed her to work even harder, even if All Might told her she needed to pace herself.

Neither of them were expecting what happened next though.

It started when Izuka had finished the day's training and was about to head home. Tired from hauling the trash around and ready to get some food, and shortly after, some sleep, the soon to be UA student waved goodbye to her new mentor and started on her way away from the beach and to the house.

It was always a long walk home from the work out. Not because it was a massive distance, but because Izuka's muscles were always rather sore afterwards, and she had to walk slow to keep from it hurting too much. Today was no exception in that regard.

Something that did make that particularly day different from the ones before it was when Izuka realized she was being followed by All Might. She turned to her mentor, thinking that she'd just had something she wanted to say before, but had forgotten to at the beach.

"What is.." Izuka trailed off when she saw the look in All Might's eyes. Her expression was just off somehow. It looked hungry, like a wild animal. It wasn't a hostile look really, not the same kind of look she'd seen heroes get in the middle of intense battles, this was different, this was… longing.

As All Might started moving closer to Izuka, she realized she'd seen the look before, and once she realized that, her eyes widened as several more puzzle pieces fell together in her mind, letting her understand what was happening.

She took off running, bolting down the nearby alleyway. If she was wrong, then All Might wouldn't chase her, or would at least ask what was wrong when she caught up. No such luck, and when All Might used her incredible speed to appear as if by magic in front of her, she forced her successor to the ground with a single finger.

"I'm sorry about this young Midoriya," All Might said, her voice sounding strained, almost dream-like, as though she were in some kind of trance, further confirming what Izuka had realized as the massive heroine began removing her clothing.

Izuka blushed madly at the sight, feeling ashamed for looking despite these being All Might's actions instead of her own. The muscled form matched with a still truly beautiful womanly form made it impossible for Izuka's futa member not to stiffen at the sight even as she tried to get back to her feet to get away.

All Might moved too fast though, and before she even noticed it Izuka was completely naked, her embarrassingly small breasts (well, embarrassing by comparison to All Might's) and more impressive solid eight inches in full view. As All Might straddled her, Izuka ran though this thought process, working out what was happening.

Izuka's father was able to breathe first, and her mother brought things towards her. Not levitation, very specifically drew them to her body. If a child were born with a quirk that combined the two, the result would be someone with the power of drawing someone's heat towards them.

Izuka, despite previous examination, was not quirkless. Rather, she'd been born with a combination of her parent's quirks, which allowed her to attract the sexual attention of those around her. She'd never known because she'd never used it consciously before, at least never known it when she knew what it was.

The attack from the sludge monster had been the first time Izuka had been in any real world danger before. In her desperation, she was doing everything she could to save herself. Her body had recognized this, and she'd unknowingly used her quirk; which had been why the creature stopped trying to possess her in order to start fucking her, giving All Might the extra time to get to her and free her from it.

And now that it had been triggered for the first time, Izuka had been using it every time she wanted to give anything her all. Like, for example, training with All Might every single day since learning about One For All.

Frankly, the fact that it had taken All Might even this long to get to this point was astonishing considering how frequently she was subjected to it. Without knowing it was Izuka's quirk, she'd probably just assumed it was just some naturally occuring lust, and a combination of guilt and will power had prevented her from ever doing anything about it.

But she'd only been able to last so long it seemed, and now needed badly to release the pent up lust. "I'll try to be as gentle as I can." All Might promised, though the fact that she was doing this in her full All Might form was evidence enough that she wasn't being truthful, as Izuka could only assume that even the gentlest of motions in such a form would be painful.

She turned out to be stunningly correct in this assumption. All Might jerked her hips hard, taking Izuka's entire length into her tight hole in a single motion. Her walls gripped Izuka so tightly it hurt, not to mention the almost crushing force with which All Might began to ride her.

All Might's legs locked underneath Izuka's body, moaning out in pleasure as she began to buck her hips harder, wanting more, needing it in fact. Izuka groaned as she continued, a sense of helplessness overcoming her from how impossible it would be for her to escape the situation.

Still, she couldn't feel too upset at All Might, as it was her own quirk causing these actions. And besides, painful as it was, it wasn't like there was no pleasure to be had. She felt that she might even be able to enjoy it even.

Assuming she was still alive at the end of it of course.

And that'll have to do for chapter one. Apologies if it seems short, though in comparison to my normal stories it was practically a double feature XD

I'll attempt to go into even more detail as the story continues. Now, I've got two things I want to ask the readers.

The first is that, as clearly seen, a few genders have been swapped around. Who would you like to see shifted to female or futa, and who should be left female or male as they are in the show?

I've already taken the liberty of bending Izuku, Bakugo, and All Might, and the one who requested this story had a very specific male character they wanted to see bent to female, but let me know what you'd like to see in the reviews.

The second thing I'd like to know is if the majority of the readers would be fine with a scene involving Izuka's mother. Personally I'm fine with it, and under ordinary circumstances wouldn't even ask, but I figured I'd be nice and actually ask and make sure anyone actually wants to read it before I just go and do it.

Let me know your answers to both of those in the reviews.