The buzzer had something of a Pavlovian effect on her, in that whenever she heard it—and she always, always heard it—she would get really really happy, and just a touch—ever so slightly—horny. There were numerous reasons for this: first, it meant that Izuku was here to see her, second, it meant that he might have food, and the horny part could be best attributed to her realizing a few years ago when she became his personal support maker—the job was good—that she was a girl with girly bits and he was a boy with boyie bits.

Though maybe she should start thinking of him as a man because that's what Izuku was. He was a man and then some, he had so many wonderful muscles that she could just fill to the brim with babies! Like the subsonic danger locator, the thumbpad communicator, the multi atmosphere breathing apparatus she installed in his mask, and so many others. And she had so many more just waiting for him to come and test.

But also. Did he bring food? She wasn't really hungry, but she was running low on stuff. Besides, it was part of their agreement that she stay here while he goes out there. Largely because while she could remove the tracker on her ankle, she apparently wasn't supposed to and that if she did it again she'd go to jail because of one or two (dozen) little (various sized) explosions. It wasn't like anyone got her but apparently property damage was a thing and offering to make it better wasn't really a thing.

So Izuku was part landlord, parole officer, bringer of food, best friend -only friend really-, object of sexual desire, partner, and, like, a bunch of other things. But mostly he was just Izuku.

Wait when was the last time she showered? Oh right, like a day ago. She was fine. Still maybe she should put a bra on. Then again, Izuku did like to sneak glances when he thought she wasn't looking. It made her feel like a woman, which was most of the time bad. Unless it was Izuku making her feel that way. He must like the big ones. And she had that in spades.

Apparently finding a bra for her was really hard.

So she made her own.

Mei reached over and pulled out a few small disks that made up her Breast Restraining Apparatus, or B.R.A. for short. It was basically a high tech bra that used electromagnets to keep her breasts safe and comfortable. Or she could use them to give herself a lot of cleavage. Which was something she was going to do right now. Why? Because Izuku.

Running barefoot towards the entrance way, Mei put on her best smile and bounced towards Izuku. "Izuku! You're here you're-"

"What the hell did you do to my babies?" She came to an abrupt stop and saw Izuku Midoriya, the pro hero known as Deku, in the tattered remains of his hero suit. The hero suit that she made him, one that was capable of withstanding all the shit he could do and then some while providing protection from just about everything and had a bunch of babies that she personally made. And now all of them were destroyed.

"Nice to see you too Mei." Izuku half laughed, he went to scratch the back of his head, his large visible muscles flexing as he did so, but stopped halfway with a wince. "I uhh, won."

"Against a train?"

"Yes."

"Really?"

"Yeah."

Mei sighed and looked over Izuku's body, parts of his suit were burned, other's torn, ripped, or shredded. Well At least the system did what it was supposed to. She put so much work into those babies. Wait. This was good. If his old suit was destroyed she could make something even better. "Alright Izuku! Take it off! You're probably going to want to get back into the field as quickly as possible right? So that means I need to get to work on making a new one!"

"I knew you were going to say that. Thanks Mei. I'm going to uhh, go see a doctor-"

"What?" Mei turned and looked at Izuku. He really was injured and there were numerous, numerous bruises on him. Izuku was injured. She had a way to fix that! "Oh! This is actually perfect!"

"Huh?" Izuku raised a green eyebrow at her, a smile appearing on his face. "How is my injured perfect?"

"Oh, not that part!" she grabbed Izuku by his strong firm hand and began to pull him into a seperate room. "I meant that you're going to give me a chance to show off my new skills."

"Huh?" Izuku half stumbled as she pulled him into the washroom. "New skills? Should I be worried?"

"Nope! Since I've been here I've been reading a lot of medical books and stuff, you know house arrest and a whole no explosion thing doesn't give me a lot of room for fun stuff. So I've been learning medicine."

"That sounds like a different kind of dangerous."

"Relax. None of this stuff explodes." Mei pulled him into the washroom and sat him down on the stool near the wall. "So just trust me alright?"

"I trust you Mei." Izuku said softly, but then his face went red and he glanced down her cleavage. Score. "But are you sure you want to wash me? I mean that's what you're planning right?"

"Yep! I've analyzed Recovery Girls quirk and managed to develop something similar to it. It's nowhere near as powerful, but it doesn't drain your stamina. It should be able to take care of your broken bones though." She moved over to a large bright blue cylinder on the wall and began to twist the knobs, watching as the bubbly liquid moved into the pipes that went around the room.

Now the fun part. Stripping Izuku.

But first. Time for what Momo called Accidental Seduction Technique #3: The Ponytail. She posed making certain that Izuku had a good view of him and grabbed another baby she had around her wrist. This one was of similar design to her B.R.A. only it was just a fancy hair scrunchy. The loose collections of disks hung from her mouth as she gathered all of her behind her head. With the slightest flick she brought the disks around her hair and made a night tight ponytail.

Needless to say it worked and Izuku was staring at her with his mouth hanging open.

"Okay, now then, let's get that old baby off of you and start the treatment." Mei clapped her hands and tried not to think too much about how Izuku was mere moments away from being naked. Okay, well now she was really thinking about that. But, first, she needed to heal his wounds. "Hold still."

Izuku nodded and let her strip him. Which was really really fun. Maybe her next baby should make it so it could come off easier. Oh, wait, Melissa had just sent her the blueprints for that advanced material right? Hmm maybe that would do and oh look back muscles. Izuku's strong, firm, well defined back was exposed to her now. Several large black and blue bruises were scattered about, some the size of her hands.

Soon enough, Izuku was sitting in nothing but a towel, looking like a giant awkward muscled teddy bear sitting in her custom washroom. Technically she had a couple of babies that would be able to clean and apply the solution to Izuku far better than she could. But this was one of those cases where she wanted to be far more hands on than normal.

She grabbed the shower hose and tested the solution. It was thicker than water, and warm against her hands but it left her clean almost instantly. That was good. "Alright, I'm going to start washing you."

"Yourself?" Izuku half asked. "I was half expecting to be horribly contorted by one of your babies."

"Nah," She wanted to touch his muscles. "Some things require a human touch."

She brought the nozzle up to Izuku's back and began to cascade the solution down his back, her other hand gently moving a towel around the more heavily damaged areas.

"Woah." Izuku gave a half groan, his massive back muscles churning like the ocean for a moment. "That feels pretty good Mei. You sure you're not just spraying me with a dozen painkillers?"

"Nope! This is all the healing solution! And it's working wonderfully! It's a good thing you showed up as a test subject." She muttered that last bit watching as the bruises on Izuku's back slowly faded. The largest of the black bruises shrunk, turning blue, then pink, then it was gone under the constant spray of the solution. She pressed her chest against his back, her own body growing hotter by the second. Now that Izuku's injuries were vanishing, she could let herself be herself.

And by being herself she meant give in, just the slightest bit to her more human desires. Izuku was currently naked in front of her and there was no way that she was going to let this pass. Besides, the solution had a side effect of heightened arousal. She tossed her now soaking wet tank top off to the side, making certain that Izuku could see it as she continued to rub her large breasts against his back. Her nipples felt so good grinding against him.

"Umm. Mei." Izuku's voice cracked like it did when they were teenagers. That was right, he liked her boobs back then didn't he? Well they were larger now. Were there other parts of her body that Izuku liked? She should find out. "Wh- what are you rubbing me with?"

"My breasts."

"Why?"

"Why not?"

"Because Uh. Well" He squeaked, his hands going to cover his crotch. "Was there a side effect in this stuff you aren't telling me about?"

With his back cleaned, Mei walked over to Izuku's front. Many of the bruises she had seen were already diminished so his large sculpted muscles were free for her to gaze at. Muscles were neat. And Izuku's muscles were extra neat. But her eyes went down to that towel, where Izuku was struggling to keep something down.

And that something was his dick.

She sprayed his front down with the solution, ignoring—rather relishing—his eyes lingering on her chest, and her stomach, and her hips. The solution that sprayed on her was causing her pants to constrict her hips ever so slightly. At this point she couldn't blame her horniess on the solution, rather, all of her desire was natural affection for Izuku. Especially now that he was healed.

"Okay, I uhh, think I'm all healed up Mei." Izuku said awkwardly, looking at his arms. "That stuff is amazing, but I-"

"Not so fast." She pressed a button on the nozzle and watched the hose retract back to its spot on the wall. She placed both hands on Izuku's shoulders, keeping him in place as best she could and moved down, touching his muscles along the way before getting towards something she had desired for a long time. This was his fault after all, he just had to show up all wounded and in need of her help.

How was she supposed to not take advantage of that?

"There's still one more thing I need to take care of." She got as close as she could to Izuku, her breasts touching his face for a moment before she began to slide down his body, savoring each and every touch until she was in front of his crotch, the towel was putting up a valiant effort to conceal the beast below, but Izuku, Izuku was virile. "It's bad if it stays hard for too long right?"

"I uhh, what are you-"

She pulled the towel off and felt just a hint of shock as Izuku's penis sprung forth, it bobbed for just a moment. Up close like this it seemed so large. Her experience with them before now were limited to pictures, videos, models, and other media, but she could tell that just from the shape of Izuku, the curve and the thickness, that he was going to feel so good. The size, she wasn't quite as sure of.

But she was more than willing to try.

Momo Purposeful Seduction Technique #1: Tit Fuck.

"Let me know if this feels good," Mei hummed, wiggling herself closer and bringing up her large breasts and sandwiching Izuku's dick. It smelled salty, musky, primal, sweaty, and oh so arousing. Seeing that thick head of his sticking out from her cleavage sent a jolt of warmth up and down her entire body. She wanted to make Izuku moan.

How much pressure was too much pressure? Should she be gentle? Should she apply a lot of force? What would make Izuku feel the best? She looked up at his face, testing the pressure she placed with her breasts and watched him, carefully studying each and every gesture his face made.

His eyes were closed, and he was biting his lip while his fingers clutched at the base of the stool. Apparently, everything felt good to him. And when she licked his tip, just the tip, a low grunt escaped Izuku that made her even more horny than that solution ever could. She liked that groan.

Her breasts began to tingle, her already hard nipples burning pits of something close to pleasure as she continued to work his healthy primal shaft up and down, her tongue licking up that thick white spunk that was leaking out ever so slightly. It was salty.

"Mei, I'm-" Izuku's low primal grunt was followed by his hips pushing against her, his already hot dick grew even hotter, swelling even more and pumping, before he came. White hot sperm erupted out from him covering her breasts and her faces. "Yeah."

"Did that feel good?" Mei asked smiling as she tasted his sperm a bit more. It wasn't terrible, but she didn't really like bitter things. She grabbed one of the still wet towels, partially aware that it was still covered in the solution and cleaned herself off.

"Yeah, it did. Umm. Do I say thank you or umm." He was still having a hard time looking at her. And he was still hard. So very large. His virile dick pulsing with every movement he made, its constitution unphased by the orgasm he experienced moments ago. Another side effect? She should experiment more.

Her pants were tight due to the solution, but she was able to slide them off of her hips and wiggle them down her thighs before they fell to the ground with a wet slap that drew Izuku's eyes to her. She was completely naked, he was completely naked. She could feel his eyes looking at her face then down towards her breasts, her stomach, her arms, her hips, her thighs, her vagina, his gaze feeling like a thousand little fingers tingling her ever so slightly. "Good. Now it's my turn."

"By that you mean sex?" Izuku asked, now staring at her without any of his shyness.

That was good.

She liked it when Izuku was confident.

"Yep! Let's see how it feels!" She grabbed his hand and pulled him out of the washroom. She was going to drag him to bed and mount him there. But the moment they got into the hallway, Izuku pulled her into his chest, her face smashing up against him before he picked her up by the legs. She felt her heart do something funny.

Not bad funny, but good funny. A really really good funny. What was it? Oh. She was in love. Huh. Was it love? Or was it just lust.

"I know where your bed is." Izuku whispered in her ear making her entire body tingle in delight.

She'd decide the difference later. But for now, both would work.

True to his word Izuku took her to the bed, she had only been looking for the nearest flat surface that wasn't ground and or wet to have sex with him, but this was so much better.

She laid naked on her own bed, thankful for once that she made a baby to clean and make it every so often. Izuku was on top of her, his large muscle bound body looming over her and she could feel the heat of his still hard dick eagerly awaiting entrance into her body. Her own body began to react to it, she could feel it yearning for her, she could feel her hips gravitate towards it.

Every part of her was ready to experience sex with Izuku. Every part of her was so willing to be torn in two by the monster that lurked in Izuku's pants. She wanted it, she needed him. Instead of all those things, Izuku did something so much more wonderful. His hand pressed into the mattress above her, his fingers sinking in deep; the indentation, a sink hole of lust that she was desperate to feel.

He kissed her.

Yep.

It was love.

That first kiss, her first real kiss, felt awkward, clumsy, unexpected, and completely unnatural. All in the best possible way. Parts of her she didn't know existed were reignited like a long forgotten foundry that was now driving her forward with pure wholesome desire for Izuku. She wanted to kiss him more, so much more. She cut off his escape by wrapping her arms around on his neck, her fingers deep inside that curly green hair of his as she pressed her lips against his, opening slightly, exploring his mouth, sucking on his lips, biting, nipping, kissing, it was all so wonderful.

But she wanted more.

"Izuku." Her voice sounded so completely pathetic, almost like a whine. She wiggled her hips towards him, trying to get his attention down there and to finally stop kissing her and groping her breasts. Well, not stop that. She loved all of that. But she needed him down there. "I need you inside me."

Izuku looked down between them, his elbow landing to her side as he shifted his weight. She had one leg resting on his hip as she beckoned him in. She felt so hollow. So unfulfilled. "I umm, are you sure? I've never done anything like this, and umm, I know that I'm a little on the large side and I don't know if-"

"I'll make it fit." She snapped and kissed him. "If you don't put it in me now I'll do it myself."

He moaned. Apparently he liked it when she was aggressive. Noted.

"Okay." His hand moved back, pausing for a moment to grace her entrance, her wet, entrance that was wide open and waiting for him to enter her. A finger slipped in. "Here?"

She nodded, hips moving at having something besides a toy entering her for the first time.

"Kay." Izuku nodded and grabbed his dick, angling it towards her. She felt that head press up against her, for a second she wondered how it would ever fit. And then. It just slipped inside. Pain washed over her as Izuku spread her wide. But so too did pleasure. She bit her lip, hands clawing at the bedding, her back arching, chest heaving, hips wanting more. So much more.

"Woah," Izuku muttered, his eyes rolling slightly as his face twisted in a weird way. "That feels really good Mei. Are you okay?"

"Give me a second. You're unh, you're bigger than I thought you'd be." She took a few deep breaths to try and relax. It felt like she was becoming shaped by Izuku's dick just by it barely entering her. That was good. "Okay, you can keep going, but go slowly okay?"

"Uhh, sure." Izuku grabbed her hips with one hand, keeping her steady as he slowly slid into her. Pain came first as he stretched her even more, then a rush of pleasure as she felt him touch everything. Every part of her was being filled to the brim and she loved it. "Do I keep-"

"Yes!" She half screamed, her back arching as her head pressed deeper into the mattress, her legs wrapped around Izuku's hips as she felt him move further into her. Then. He was in. Completely. She felt full.

"Woah." Izuku looked a little spacey as he moved to kiss her again, one of his hands grabbing a handful of her breasts. "Can I start moving now?"

Mei bit her lip. Her eyes met his. She moved her hips and nodded.

Izuku's first stroke was shallow, short, sweet, as though he was testing the waters, his eyes focused on her face. A moan escaped her, and she bit her lip, staring up at him as a smile spread across his face. The second stroke was longer, so long she thought he might pop out of her. But then, he went back in, a long, steady, stroke that had her gasping for air.

Another one followed, she matched it this time her hips moving in tandem with his. Sex felt great. Sex with Izuku felt amazing. His strong hands were firm, gentle and kind. Every touch of his felt so wonderful, to say nothing of the feeling of her being all but completely consumed by those steady powerful strokes. Each and every one had her tingling, while she moaned, her breasts bouncing and swaying.

Izuku likewise groaned, his hips moving faster, each thrust a bit more desperate. She could feel his groan, that primal grunt of his was what really started things inside of her. She felt her entire body clench like a spasm, every muscle wanting to go in every direction all at once before that came to an end and she was falling. Her mind going blank and her heart pounding in her chest.

An orgasm? It felt different than those few self-inflicted ones she had experienced before. And a lot more powerful.

Still it wasn't enough. She needed more.

She pushed forward, using her legs that were still hooked around Izuku's hips and moved to kiss him. He greeted her with opened arms and fell back onto his butt, his legs spreading out over her bed. His hips kept making small little thrusts that were building up inside of her while she kissed him with her everything.

More. She wanted more.

Izuku growled, his hands firmly on her hips as he kept thrusting up into her, doing his best to kiss her.

Another one? She could feel a second orgasm building. No, that wasn't right. This one was different. Bigger. Like the first was just a prototype of something completely amazing!

"Izuku," she pushed back softly, stopping his onslaught of kisses. He didn't relent; he just started to kiss her breasts. "Izuku, it feels good. Mmmh. Let me- let me be on top. Let me finish."

He looked at her like she had grown a second head for a second before he nodded. He moved carefully, keeping himself inside of her while she straddled him and laid down onto the bed, his wide chest fully exposed to her. She explored those muscles for just a moment before she placed both hands onto his chest and began to move her hips, rocking slowly back and forth, feeling his dick stir her up before she started to move up and down on it.

It didn't last long. He hit something. Izuku's dick hit something inside of her that had her lean forward, pressing her chest against his as that building orgasm made itself known, there was still so much of it. There was still so much, but she could barely move. She needed to move her hips.

Izuku's hands wrapped around her hips and he guided her. Keeping her motions steady as they both raced towards that climax.

She felt Izuku's entire body tense. His dick swelling again and then something hot entered inside of her as he got there first.

Feeling that warmth inside of her was what brought her to the edge.

She screamed, moaned, groaned and grunted, lurching forward to kiss Izuku and wrapping her arms around his neck once more, once again feeling empty as his dick slid out from her.

They kissed, panted, and relaxed for what felt like a long time, their bodies slowly coming down from that sexual high.

Then she felt something unexpected, something she never knew how bad she wanted until she had it. Izuku pulled her in tight, his arms wrapping around her as they cuddled in her underused bed. She should fix that. They were going to fix that. They were going to use her bed a whole lot.

"So, uhh," Izuku started slowly, still holding her softly. "What was that about?"

"I think I love you." she kept her back to him, enjoying the sensation of him holding her like this.

"Oh." He was silent for a long time. "If it helps, I think I love you too."

"Good! That means we can find out together." She turned to face him and kissed him again.

AN: I got paid to write this :3 But it was fun!