Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/ works/12169395. Rating: Explicit Archive Warning: Underage Category: F/M Fandom: 僕のヒーローアカデミア_|_Boku_no_Hero_Academia_|_My_Hero_Academia Relationship: Iida_Tenya/Yaoyorozu_Momo Character: Iida_Tenya, Yaoyorozu_Momo Additional Tags: First_Time, First_Kiss, Vaginal_Sex, Nipple_Play Stats: Published: 2017-09-23 Words: 2237 ****** cheers ****** by Birdschach Summary “Yaoyorozu, you don’t… you don’t mean that, do you?” Tenya asks, “I would never want to take advantage of you, I… well, I really look up to you! You’re so intelligent, and… well, of course you’re beautiful, and no one can deny your physique is… uhm, desirable, but…” Notes Woo, got this done in time for Momo's birthday! “It is completely deplorable, Yaoyorozu!” Tenya exclaims, gesturing wildly as the two linger in the locker rooms. It would generally be frowned upon for a male and female to be together in the same changing area, but due to their positions as class representatives, and their individual reputations, it’s not as though any real suspicion would be cast their way. “Kaminari and Mineta should never have deceived you like that! It’s an embarrassment.”   “That’s just how they are,” Momo answers, her eyes downcast. She’s still clad in the orange cheerleading uniform that has caused so much trouble, for both her and her female classmates. “I never should have believed them in the first place. As if Aizawa would enforce such a ridiculous rule, especially without telling the class rep first…”   “What?” Tenya says, sensing Momo’s upset with herself. “You can’t blame yourself for this, Yaoyorozu. I won’t have my fellow class rep feeling so melancholy over trusting her classmates! You should be praised for taking them at face value, it’s those two who should feel bad about this!”   “Y-you mean it, Iida?” she asks, her face brightening immediately. “I guess when you put it that way, you do kind of have a point…”   “Exactly! You should always be proud for trusting your classmates, it’s the mark of a true hero, after all!” Tenya answers, before going on. “But roping you and the others into this… well, regardless of how much physical appeal those outfits hold, it’s inexcusable!”   “Physical… appeal?” Momo asks, eyes widening. She glances down at herself, then, and is reminded that she’s still wearing the skimpy outfit… the tight top, that doesn’t even begin to cover her navel; that short skirt that lifts up at even the slightest provocation. “You’re not saying you like it too, are you?”   “Wha-!?” Tenya starts, his face turning bright red, “Of course I… well, I won’t say that I don’t, but it’s not as though I was looking or anything. I mean, I couldn’t avoid a glance here and there, and we have been talking for a while, so I suppose it’s unavoidable that I’ve seen the uniform, but I… well, I…”   “Iida…” Momo says, but she falters suddenly, her next words surprisingly difficult. She feels the room growing hot, even with how scant the fabric covering her is. “If… if it’s you looking, um… that would be okay.”   A moment of silence passes, as Tenya tries to process her words. It’s as if a computer was given a command it simply cannot understand, one which asks it to go against its very nature. As he struggles, Momo’s face turns red as well. The two stand together, suddenly very aware of how close they are in this large room, all alone… and Tenya moves. One step, then the next, the distance between them grows shorter and shorter.   “Yaoyorozu, you don’t… you don’t mean that, do you?” Tenya asks, “I would never want to take advantage of you, I… well, I really look up to you! You’re so intelligent, and… well, of course you’re beautiful, and no one can deny your physique is… uhm, desirable, but…”   Momo feels a surge of warmth at his words, and can’t explain why they make her feel so good . To hear Tenya praise her so highly, while tripping over his words… it’s amazing, and she finds that all she can think of is how to get more out of the reserved young man. So it’s only natural that she takes the remaining step between them, pushing up on her tiptoes, and kissing him.   Neither of the class reps have any experience when it comes to kissing, meaning their first kiss is a spectacular failure. Though, of course, neither of them know the difference anyway. To them, their first kiss couldn’t possibly be any better. Tenya feels Momo’s warmth, as he wraps his arm around her, pulling her in tightly. Part of him is worried, so worried that he’s going too far, that this is something he can never come back from. But when they break the kiss, and he looks into her eyes, he realizes he doesn’t want to go back.   The way Momo is looking at him now… desire in her eyes, lips parted ever so slightly, an almost inviting look. Tenya knows he has no chance of resisting her like this, especially not with a cheerleader’s uniform thrown into the mix. It's surprisingly easy for him to lean in, kissing her neck softly.   The contact proves too much for Tenya. Momo whimpers, as she feels the bulge of his erection brush against her. Tenya is nearly as surprised as her, hardly noticing the change with all that he's felt.   “Yaoyorozu… I want you,” he says, his expression deadly serious. They're not easy words for him, with the weight behind them. But Tenya cannot lie to himself, Momo is stunningly alluring, and even he has his needs, as much as he would rather ignore that.   “I want you, as well… Tenya,” Momo says, and the use of his first name might as well be a physical blow, with how it leaves Tenya reeling. Holding back becomes impossible, and he finds himself pulling at Momo’s top, working it upward, and it isn’t long before she’s helping, lifting her arms and allowing him to slip the top over her head. She still wears her bra, beneath the costume, but even Tenya’s clumsy attempts with the clasp see that falling to the floor in a moment.   Momo glances off to the side, apprehensive about being so exposed in front of a classmate, especially for the first time, and the blood rushing to her cheeks only serves to make her more adorable. Tenya can’t help himself from reaching out, from taking one of her breasts in hand experimentally, squeezing gently. After so much nervousness, even that light touch causes Momo to moan, which only urges Tenya on.   “That’s… nice, Tenya,” Momo murmurs, still looking away. He focuses entirely on his movements, trying to touch her in different ways, his erection still straining against his gym uniform. When his fingers brush against her nipple, squeezing it lightly, testing her, Momo whimpers. Tenya focuses in like a hawk that’s found its prey, teasing at her mercilessly. Surprisingly, Momo is quite sensitive, and Tenya intends to take advantage of that.   “If we’re doing something this bold, I’d like it if you enjoy it… Momo,” Tenya says, his tone oddly out of place for the way he’s touching her. He leans down, then, placing his lips over her nipple, licking at her, gently sucking, and his lover tightens up. Her arms tighten around him, as her nails dig into the fabric on his back. By the time he stops, breaking away from her, she’s panting, beaded with sweat, and the room feels so warm in spite of her state of undress.   “I am enjoying it, Tenya,” she says, smiling up at him. Tenya begins undressing, as she continues. “You’re doing a wonderful job, but I’m just kind of standing here, and… I want to do more!”   As he unzips his shirt, casting it aside, Momo can’t help but stare at his physique. Most of their classmates have quite athletic builds, but something about Tenya’s is unique, perhaps due to how much of his training involves running, he’s got more of a lean edge to him, and Momo enjoys looking at him. Still, by the time he’s moved on to his pants, Momo is reaching out, wanting to run her hand along his chest.   She starts at his shoulder, working her way down, but by the time she’s reached the middle of his chest, both have frozen. They share a quick glance, both blushing intensely, before they’re on each other. Momo guides Tenya down, seating him on one of the benches in the locker room, and then follows, settling in on his thighs. She reaches down, finishing the work of freeing his cock, amazed by how much bigger it looks in person, rather than the anatomical texts she’s seen before.   “Tenya, you’re quite large, aren’t you?” she asks, and her fellow class rep looks away.   “I suppose that… maybe, I might be. I’ve never really checked, mind you, it’s always bee-” he starts, but Momo’s hand wraps around his length, and she begins lazily stroking at him.   “I’m sure I’m doing this all wrong, but…” she says, but Tenya can hardly think straight, with her sitting on him, stroking him as she looks down at him.   “No! It’s incredible! But I’m afraid my body can’t take much of this, and I don’t want to… well, spend myself before we,” Tenya begins, but realizes he’s quite a bit ahead of himself. “Ah, that is, if you wanted to go that far, I realize I haven’t asked you or anything.”   “Oh! Well, I would be… more than willing to go further. If it’s with you, at least, Tenya,” Momo answers, finally able to look at him when she says his name.   “I’d like that very much, Momo. I think it would be an unparalleled experience, and… perhaps settle both of our nerves before the festival tournament begins?” Tenya says, “Perhaps we’ll each perform better beca-”   “Tenya, it’s okay,” Momo says, putting a finger to his lips. She releases his cock, and instead pushes her panties aside, surprised by how wet she is, and begins lining herself up with him. The dark-haired girl takes a deep breath, still finding it hard to believe she’s really doing this. That this damnable costume lead to something like this, with Tenya of all people. “I think we’re both ready.”   Tenya nods, and Momo sinks onto him, moaning as the heat of his cock fills her, stretching her as she moves further, and further. It’s an odd mix of pain and pleasure, but something about it drives her on, making her want more and more, until she’s taken him completely. Both are still, then, as she adjusts, neither one daring to move. Once she is ready, however, Momo begins lifting up slowly, only to sink back down a moment later. It takes her a few thrusts to build up momentum, but it isn’t long before she’s got a rhythm to her motions.   Tenya can do little more than hold on to her hips, watching the way her body sways as she thrusts down onto him. The feeling is incredible, and her expression is even better, and Tenya wants nothing more than to make this girl as happy as she makes him in this moment. He begins matching her motions, thrusting up into her as she comes down, urging her to work her hips from side to side, and even leans forward to take her nipple between his lips once more.   “Ah, Tenya!” she cries out, as the pleasure she feels builds. Though their union feels like an eternity, neither of them have much tolerance. Surprisingly, Tenya manages to hold on even against overwhelming odds, his determination allowing him to outlast Momo. When she finally reaches her limit, Momo slams down one final time, the walls of her entrance squeezing at Tenya as her climax crashes over her. She can think of nothing but his face, how happy he looks, and that it’s her causing that feeling.   Tenya isn’t far behind her, only just managing to pull out before he finishes, his seed shooting up, landing on both the underside of her skirt, and his gym uniform pants. Silently, he curses himself for having such horrible aim, wondering how in the world they’ll manage to clean up. Momo, however, seems unbothered, as she rises on shaky legs.   “Tenya, I… that was incredible! I feel as though I can take on the world now!” Momo says, beaming. The afterglow certainly looks good on her, Tenya must admit.   “I feel the same but… I’m afraid I must apologize for my poor conduct. I wasn’t quick enough when I pulled out, nor could I last long enough to finish in a more convenient way,” Tenya says, looking down. “I’m afraid what we’ve done will be obvious.”   “What size are you?” Momo asks, simply, and Tenya looks up to find a replacement of her cheerleading uniform already materializing out of her flesh. “I can make you a replacement as well, and no one will know the difference!”   “I… thank you so much, Yao- Momo, I’m in your debt!” Tenya says, rising to his feet, and telling her his size.   “It’s really no trouble, after all… well, we’re going to be dating now, won’t we? At least, I assumed we would, I… I like you, Tenya,” she says, growing a bit sheepish.   “Of course! I would never engage in such an act if I didn’t intend to lo-” Tenya says, nearly spouting off more than he means to. “To stay with someone! I would love to date you, Momo.”   “I’m so pleased! Tenya, you’re incredible,” she says, and by now both of their replacements are done. They change quickly, and throw away the evidence of their union. “Good luck out there!” “And to you, as well! Though I feel as if nothing can stop me now!” Tenya says, and Momo can’t help but grin. Her crush on Tenya had been present for quite some time, and she is happy to have finally gotten closer to him… even if it is much closer than she expected. Please drop_by_the_archive_and_comment to let the author know if you enjoyed their work!