Work Text:
Katsuki could remember what exactly sparked his interest.
He had been doing his homework in the same room where his parents were watching some sitcom. The rowdy hoots and laughter of the 'live’ studio audience grabbed his attention and he glanced up to see what was so scandalous.
And paused.
He didn't know why a man was on the screen wearing women's clothing, but there he was. He was posing, the white corset and frilly, lacey panties on display, a long filmy robe draped over his shoulders. It was a daring look, barely passing network censors and clearly played for laughs, but Katsuki found himself enthralled.
The man looked… nice like that.
Pretty.
Blood rushed in his ears and he couldn't hear what was going on on the TV, focusing on the guy. He seemed to have started an argument with some woman who was trying to push him back out the door he apparently made his dramatic entrance through. There was just something about the outfit that fascinated Katsuki, but his eyes kept getting drawn to the panties in particular. Honestly, their cut wasn't that different from plain white briefs, but the high cut of the legs, how low they sat on his belly (he had to have shaved his pubic hair they were so low) the hint of a light blue ribbon along the scalloped edges… He never thought about men wearing something so pretty and delicate, and he was fascinated.
The man and woman on the screen stopped yelling at each other and the man turned to leave, flinging the robe out dramatically behind him and giving a peek at his backside. The panties had a little bow right at the top of his ass.
Cute.
The woman said some inane line and the studio audience laughed and the show cut to a commercial, shaking Katsuki out of the stupor he'd found himself in.
He snapped his face down to his homework, hoping that his cheeks weren't as red as they felt.
Why would a guy wear something like that? Wasn't it embarrassing, something that would just invite ridicule? Hell, the show itself seemed to think that way, just listen to the laugh track.
But that guy looked so good…
What did that feel like?
Katsuki had been called a lot of things in his life, but 'pretty’ was never an adjective that applied to him. He hadn't been called 'cute’ non-sarcastically since he was five, and even then it was the generic cute of little kids, not out of how he presented himself.
What would it be like to be pretty like that?
He had to find out for himself. Just once, just to see.
_*_*_
The next day he had off from school he told his parents he was heading out, told his friends to fuck off, and went to a department store an hour train ride away just to cut down on the chances anyone he knew would bump into him, allowance money burning a hole in his pocket.
He left with a basic four-pack of cheap panties in black, white, beige, and pink. He didn't want to spend that much on what was just an experiment, just dipping his toes in. The package said that they were 'bikini cut,’ whatever that meant, and the particular style he picked out were simple solid colors except for an elastic hem in white.
He hid his purchase the moment he got home, god forbid his dad, or worse, his MOM finding them, and tensely waited until he went to bed for the night before pulling them out. The entire day he had been irritable and snapish (well, more than usual), the thought of what he'd bought and was waiting for him upstairs putting him on edge.
Finally, finally, he was alone with his prize.
His hands shook as he peeled open the pack, wincing with every crinkle of the plastic packaging as if his parents would barrel in at any moment and find him red-handed.
He unrolled the topmost pair, and he finally had them in his hands.
They we're just simple cheap cotton, nothing special, but he still rubbed his fingers against the material like it was the finest silk because they were his.
He stood up, holding them up to his hips to check the fit. He was unsure about what size he was so he took a guess based off what looked okay, and he seemed to have had about the right size. They looked so tiny against his usual boxers, but the waist looked right.
He had to try them on.
He stripped right there and stepped into the panties, pulling the narrow sides up over his hips. They were definitely not designed for male anatomy, his cock and balls pulled tight against his body, the waist in the front pulled down a bit, but… they fit.
He looked down his body, breath starting to quicken, just looking at himself in the underwear, in the panties.
He had to get a better look.
Inside his closet door was a full length mirror. He stood in front of it for a long moment and just stared. The panties he'd chosen were the black ones, maybe subconsciously thinking that the color would make them less soft, less cute and more tough. But instead they clashed against his pale skin, drawing attention to themselves.
They were just as cute as he hoped (feared?), and he couldn't help but twist a little to the side, the high cut making his legs look ridiculously long as he peeked at the back and how they hugged the curve of his ass. The lighter trim softened the harsh black, a gentle demarcation between the fabric and his trim legs.
He reached down to cup himself through the stretched fabric of the panties.
Yeah, he liked them.
He wanted to wear them as often as he could.
_*_*_
Unfortunately, if he didn't want to get caught wearing them he couldn't wear the panties as often as he wanted to. There were days he had gym and like hell would he change into his gym uniform while wearing a pair of panties. But when he could, oh hell yeah he'd wear them whenever he could get away with it, a thrilling secret that only he knew.
He returned to the department store every now and then, picking out different styles and colors. He learned that boy shorts (which felt and most importantly looked nothing like REAL boy shorts) and cheeky panties were more comfortable than thongs, but he loved how he looked in them. But mostly he wore anything that he could find in soft colors and delicate material, lace and ribbons and floral patterns.
When he got home at the end of the day he'd jerk off, adrenaline from keeping his secret running in his veins. Sometimes he'd palm himself through the panties until he came (always the cheaper pairs, never the softer, prettier ones that he'd save for special occasions), but more often he'd tease himself, standing in front of the mirror and staring at how he looked, so soft and so goddamn pretty in lace and bows, until he couldn't take it anymore and he'd pull his dick out.
At one point he tried on a pair of stockings which were a complete disaster; a toenail snagged one leg when he was putting it on and laddered it instantly,he ripped a hole in the waist trying to tug them over his hips, and though his leg hair was fine and light colored, it was too distractingly obvious under the nylon and no way was he going to shave his legs when he was sharing a locker room. He ended up balling them up and exploding them, making his room stink so bad that his mom chewed him out the next morning.
But then he got accepted to UA and his opportunities to dress up under his clothes were even fewer.
With his coursework being so physical, he was sharing a locker room almost every day. He was finding himself changing into a pair every time he left his room if he knew he didn't have training. He was still careful though, for the most part only wearing items outside of the safety of his dorm room if they were fairly simple in style or color, something that if someone caught a glimpse of them they could be taken as plain briefs.
Plausible deniability.
Until he fucked up.
_*_*_
It was during a long holiday weekend. School was out so most of the students were visiting their parents, and Katsuki was bringing home a bag of groceries for dinner when he'd heard the scream. It wasn't far and he'd reacted instinctively, dropping the bag and launching himself up into the air, trying to get a good look at whatever the commotion was.
There, just a few blocks away, he could see people running, scattering away from a specific area like cockroaches. He launched himself in that direction with short blasts from his hands, eyes peeled for the cause.
The green blur at his side was sudden but not entirely unexpected, Deku popping up from wherever he was and jumping from rooftop to rooftop, energy sparking around him as he beelined for the ruckus.
"Out of my way, Deku," Katsuki snarled, pulling ahead of him.
"I'll get the north end of the street," Deku shouted in reply, not even bothering to pretend to listen to Katsuki. "You get the south!"
"You don't tell me what to do!" Katsuki said, altering his course towards the south. If he and Deku could surround whoever was causing the commotion, the only place they could run was down a dead-end alley. There they could fight them without having to worry about any civilians getting in the way.
They were able to see the cause of the commotion as they approached; a villain was leaving a convenience store, a bag of cash in one hand, his other brandished threateningly as loose bills fluttered around him.
"Stay back!" the villain said, high and pitchy, panicking as a bubble of some sort of liquid began to form in front of his outstretched palm. "Nobody get close, damnit!"
Katsuki and Deku landed at the same time on either side of the villain but didn't approach. There was no telling what that bubble was made of, and attacking without having a good idea of what the guy's Quirk was could be dangerous.
"Hey," Deku called out, hands raised in an attempt to talk the villain down, first, while Katsuki readied himself to attack the second the villain showed any sign of aggression.
Deku didn't get a chance to say anything, though, because at Deku's voice the villain startled, sending the bubble into the gathering crowd before either Hero-in-training could move.
Katsuki blasted forward to try and get people out of the way before the bubble hit, and he was able to shoulder away a couple people, but not before the bubble hit the ground and bust, sending foul-looking green liquid splashing on the arm of a guy who was watching everything go down.
"Fuck," Katsuki hissed, looking at where the liquid splashed the guy, expecting screams of agony, flesh dissolving, something. Instead he and the guy both watched as his shirt dissolved slowly where the liquid hit.
"...Does it hurt?" Katsuki asked, thrown off. He didn't want the guy to be in pain, he was just expecting something… more.
"...it kind of itches?" The guy responded. He craned his head to look at the back of his sleeve where the liquid hit the worst. "Probably going to have to throw my shirt away, damnit."
"Kacchan!" Deku's voice ripped Katsuki's attention away from the guy right in time to see Deku following the guy down the alley Katsuki saw earlier.
With a curse Katsuki took off after the nerd and the weak-ass villain who was apparently trying to bluff his way into riches.
The moment he entered the alley he had to duck another bubble of the acid, paying it no attention as it splashed harmlessly against the wall.
From there the fight went quickly. The wannabe villain had no fighting ability whatsoever, and since Deku and he knew just how weak of a Quirk the guy had, they were able to take him down with little issue.
He didn't go down quietly, though.
"I'm so sorry!" The guy sobbed while Deku held him down and Katsuki wrapped capture tape around his wrists and hands, making sure they were pressed palm to palm do he couldn't make any more of those fucking annoying bubbles. "I promised my girlfriend I'd take her out to an expensive restaurant for her birthday but I'm broke! I didn't realize her birthday was so soon, or else I wouldn't have spent all my money on that new console!"
"And now your girlfriend gets to visit you in jail for her birthday," Katsuki growled, finishing tying off the tape and standing up. "Dumbass."
He took a step back and almost tripped over his own damn feet when something was restricting his legs that wasn't there a moment ago.
He managed to catch himself, but the second he looked down to see what had wrapped around his knees he froze and nearly fell over again.
It was his shorts. Specifically, it was about half of the waistband of his shorts, the rest of it eaten away by the acid that he thought had missed him. Apparently not, enough had splashed his side and hip that his shorts were slowly dissolving away, leaving the legs intact but the top and side completely gone.
His shorts were ruined, but not what he was wearing under them.
And of fucking course he was wearing panties that day. And not just any pair of panties, but because he had no school and therefore no expectation of having to change in front of anyone, he was wearing probably his frilliest, prettiest panties he owned.
They were such a pale shade of pink that they were almost white, made of a stretchy lacy material that itched a little but looked cute. They had an embroidered flower detail across the top, and two white bows on each hip.
Cute, adorable even, and Deku was looking right at them.
"What are you looking at, Shitty Nerd?" He roared, gathering the tatters of what was left of his shorts together, trying to hide them, trying to pretend that there was nothing to see, but he knew his face was bright red, his fair complexion a goddamn curse.
Deku jumped, his eyes bouncing between Katsuki's face and where he was desperately trying to keep people, keep Deku from seeing what he was wearing under his casual shorts. Katsuki could see the moment it hit Deku what he actually saw, could see the way his cheeks flushed, see his eyes grew big and wide.
Deku spun around, fucking finally giving Katsuki some privacy, and said over his shoulder, "I can wait for the authorities if you want to go."
Katsuki bristled. He knew Deku was trying to look out for him, save him from the embarrassment of Pro Heroes seeing him with his literal pants down, his secret bared to the world. Especially since the media should be there any moment, on any Hero activity like flies on dog shit. All his instincts screamed at him to flip Deku off, tell him to fuck off, he was fine, but… he wasn't. His pants were still slowly dissolving, and if he waited too long he'd be standing there in just his panties.
Thank fuck the alley was so dark, otherwise the rubberneckers starting to trickle into the mouth of the alley would have gotten an eye full. At least the wannabe villain was still blubbering into the dirty concrete of the alley.
"Fuck you," Katsuki snarled, launching himself one-handed to the roof of the building next to them. "I don't need your help," he continued, as he fled from the scene, awkwardly escaping as he tried to keep from flashing the entire fucking world.
He didn't bother trying to find wherever he left the groceries, just got home as soon as he could, slamming the door to his room behind him.
There second he let go of his wadded up shorts they fell to the floor in scraps. The panties, too, were spotted, drops of the fucking acid eating away at the cotton in spots. Katsuki was almost impressed they hadn't completely fallen apart on the way home.
On top of everything, his favorite goddamn panties were ruined.
Fuck.
_*_*_
There was a box on the floor outside his room.
It was two weeks after he and Deku took down the wannabe villain and Katsuki was still waiting for the fallout. There was no way Deku missed seeing his panties, but so far the nerd hadn't said anything about them. Katsuki was still checking as many gossip sites as he could find to try and see if someone managed to get a picture of him with his literal pants down, but still nothing.
Even when school resumed and they were back in the dorms, Katsuki was waiting for one of the nerd squad to open their mouth and prove that Deku blabbed. So far nothing, and it was driving Katsuki nuts.
Until he found a box in front of his door.
Katsuki looked up and down the hallway, eyes peeled for any signs of a cracked door, ears ready to hear muffled laughter. He couldn't put it past any of the fucking clowns in his class to try and play some dumb prank on him.
He couldn't spot anything (not that that was a guarantee of anything, there were people in his class that were invisible after all), so he nudged the box with his foot, ready to move if it exploded or whatever.
The box just shifted silently on the carpet at the push, about half the size of a shoe box and surprisingly light. Katsuki wasn't even sure there was anything inside.
Curious now, he picked up the box and retreated back to his room, giving it a shake. He could definitely hear something inside, at least.
In the safety of his room (and away from any prying eyes) he took the lid off the box.
And paused, fury building from the pit of his belly to burn molten around his heart and making sparks jump from his palms, scorching the cardboard box.
Panties.
The box had one pair, brief cut and fairly plain at first glance, other than the lace trimming around the edges. Nothing too flashy, but still noticeably feminine.
Someone knew his secret, and had the balls to make fun of him by leaving them outside his door.
It could only be one person.
He slammed the lid back on the box and tucked it under his arm as he stormed out of his room.
It didn't take him long to get to Deku's room, where he pounded his first against the door until the little asshole opened up. As soon as the door was cracked open he pushed his way in, forcing Deku to back up or risk getting run over, slamming the door behind him. He didn't want anyone to hear a fucking thing he was about to say.
"What the fuck is this about, huh?" he snarled, holding up the box. That was when he first got a good look at Deku who, instead of looking scared or properly intimidated, just looked resigned, just standing in the middle of the room staring at Katsuki, like he expected Katsuki's reaction. Which just stoked his the even higher. "Is this some kind of fucking joke to you?"
How dare he. How dare he use his knowledge against Katsuki, lord it over him that Katsuki was fucking broken enough to like… to wear… He was so furious his eyes stung, and it was hard to breathe through the clenching sensation in his chest.
"It's not a joke," Deku said, voice mild, calm where Katsuki was pissed. "I just thought you'd like a replacement because your old ones got damaged."
"You thought?" Katsuki echoed. "What made you think that I wantedyou to replace them, huh?" Just the idea of it, of Deku browsing the racks of a store, trying to find something for him… it was infuriating. What if someone asked him who he was buying for? What would he say, it was for his girlfriend? Or would he say the truth, and say it was for his male classmate, his rival? Deku, hell, their entire class was getting more recognition, it wouldn't be difficult for someone to put two and two together and realize that there were not that many guys in their class around Katsuki's size.
"I just wanted to do something nice for you," Deku said, his voice rising in defensiveness. "I thought…" he faltered, then said, quieter, a blush blooming in his cheeks, "I thought you would look nice in them."
Katsuki gaped.
Deku… wasn't trying to insult him? He wasn't looking down on him, wasn't teasing him? He wanted Katsuki to look nice? What sort of game was he playing?
But then… Deku didn't look like he was playing a game. In fact, he looked like he could barely look Katsuki in the face, freckles standing out on flushed cheeks as his eyes darted around, alighting on Katsuki's own for a moment before looking away, and then back again. Not to mention, despite Katsuki's knee-jerk reaction, Deku wasn't there sort of person who played games with people. Hell, he couldn't even obfuscate the truth about his borrowed quirk for shit, Katsuki was pretty sure that outright lying was beyond his abilities.
So, was he telling the truth? That he bought Katsuki a pair of panties out of the desire to make Katsuki look 'nice?'
And the way he couldn't look Katsuki in the eye, the blush on his face, fuck. Deku really had a hard on for Katsuki in panties, didn't he?
"What," Katsuki huffed out, almost a laugh. "You think I'm hot in em or something?"
Katsuki wasn't sure what he expected, but Deku going quiet, drawing in on himself and looking away, the blush intensifying, it wasn't that. There were no laughing taunts or jeers, no vociferous denials, just Deku quietly waiting for Katsuki's reaction.
Katsuki let out a hissing breath, running the hand that wasn't holding the panty box through his hair. It was too damn early to deal with this.
"You're not gonna say anything to anyone, are you?" Katsuki asked, voice low.
Deku's blush fled as he frantically shook his head, hands up and waving back and forth. "Nonono," he yelped, and that was more like the Deku he knew. "I wouldn't tell anyone about a secret like that! Not unless you gave me permission, obviously!"
"Good," Katsuki grunted, retreating to the door, the box still tucked under his arm. "Make sure you don't."
"Um," Deku said, freezing Katsuki where he had his hand on the doorknob. At the glare Katsuki leveled to him, he squeaked out, "Are… are you going to wear them?"
"Like hell, shitty Deku!" Katsuki roared, wrenching the door open and slamming it behind him as soon as he was clear.
It was late enough in the morning that there were already people out in the halls, but Katsuki ignored them all as he stomped over to his own room, arm clamped tight around the box containing the panty Deku bought him.
He managed to get to his room without anyone annoying him, and the second he shut the door behind him he whipped the box at the wall, scattering the contents across his bedroom floor.
He glared at the mess for a long moment, and eventually gingerly picked up the pair to get a better look.
The back had a fucking ruffled butt; layers of delicate fabric soft to the touch. The front looked like a regular pair of black panties at first glance, a satiny material with lace edging. But the crotch had a bit of extra fabric, forming a pouch. They were designed for a male body, he realized - that way he could wear them and be more comfortable, without his junk being squashed.
Which… was nice of Deku, even if Katsuki kinda liked the feeling.
But more importantly, Katsuki knew that there weren't any stores nearby that sold them, or else Katsuki would have bought something from them already. Which meant that Deku had to have ordered it online.
For some reason, the mental image of Deku browsing online for something for Katsuki to wear was very different than him looking at a rack in a store. More intimate. Like maybe he was browsing his phone on his bed, trying to find something that would be perfect for 'Kacchan.' Katsuki knew then that Deku thought he was attractive, and he didn't deny it when confronted. So did that mean that Deku was getting off on the idea of Katsuki wearing the panties he bought for him? That maybe he had been touching himself to the mental image of Katsuki wearing the things he was looking at?
Katsuki shook his head and buried the panties deep in a drawer.
Later. He'd think about it later.
_*_*_
Deku was a lot of things, Katsuki knew, but 'subtle' was not one of them. From his quirk to the way he focused with laser intensity on anything that caught his interest, Deku couldn't half-ass anything if he tried.
Which made it a minor fucking miracle that nobody else seemed to notice how Deku was suddenly obsessed with Katsuki's ass.
Katsuki would have his blazer off and would stretch his arms up and Deku would be looking at where his shirt rode up. Or he'd bend over to grab a fallen pencil and Deku would be staring at the curve of his ass. The worst was the locker rooms; they'd be changing and Katsuki would glance to the side to see Deku watching him slide his pants off and the flash of disappointment at Katsuki's plain boxer briefs.
Katsuki wasn't a fucking dumbass, he knew that Deku was trying to catch any sign that Katsuki was wearing panties. Maybe the ones that Deku himself bought him.
The weird thing was that Katsuki didn't mind it.
In fact, having all of that focus on him felt good.
Katsuki was honest with himself enough to know that he liked attention. He thrived being the center of attention, and having Deku's focus on him was particularly thrilling, especially since they got to UA and there nerd was becoming an actual rival, someone to keep an eye on.
Therefore, he couldn't be blamed if he sort of… encouraged Deku, could he?
Once he realized just how much Deku was obsessed with catching a glimpse of Katsuki in women's underwear, he couldn't help himself but tease him a bit. He'd scratch his belly, hitching his shirt up just to see Deku's eyes slide to the edge of his waistband. Or he'd stand in front of Deku hipshot with his hands in his pockets, looking casual to everyone else but knowing his baggy uniform slacks were pulled just tight enough across the ass to show off some VPL.
The best moment happened during training.
Katsuki wore two pairs of underwear that day, a pair of regular black briefs and a powder blue thong. He and Deku were paired up to spar against each other, which was perfect for his goals. It took some maneuvering, especially with how thick his costumes gloves were, but he was able to hike up the strap on one side of the thong just high enough to peek over his hip.
Katsuki had drawn his arm back in a wind up to a big attack, feeling his shirt ride up just a little, and saw the moment Deku saw the strap. He froze, eyes wide and locked on his hip, eyes wide and mouth parted, completely open to Katsuki's attack.
He did shake himself out of it to block, but he couldn't avoid the attack entirely and was blown out of bounds from the circle they were in, sliding to a stop.
"Hah!" Katsuki crowed, tugging his top down before anyone else could sneak a peek at what he was wearing. Thankfully everyone else were busy sparring against each other in their own circles fast enough away that a stray attack wouldn't interrupt. "You got to do better than that if you want to beat me, shitty Deku!"
Deku glared up at Katsuki, face red for any number of reasons, and muttered low enough for just Katsuki's ears to hear, "You don't have to get your panties in a knot over it."
Katsuki choked on his next words, face blazing because holy shit he didn't expect Deku to just call him out like that. And maybe that made his heart suddenly speed up, and though part of him wanted to just dismiss it as all the exercise, he knew it was all fucking Deku and his big mouth actually saying it.
"Fuck off," he said in response. "And get back in here. I'm not done with you yet."
Deku wiped under his nose and stood up, returning to the circle and crouching in a ready pose, face set and determined. Katsuki thought about trying to distract him again, but some instinct told him to hold off for the moment. Deku was smart enough not to fall for the same trick twice, though the fact that he fell for it the first time made wearing a woman's fucking thong during sparring worth the discomfort.
However, if Deku was going to actually say something aloud, even if nobody else could hear, Katsuki knew he had to confront him about it. Something had to give, and Katsuki knew that the next step was on him. Either he had to stop teasing Deku, or he had to… what? Give Deku what he wanted?
What the hell did Deku want, anyway?
The easiest answer was 'Katsuki.' As far as Katsuki figured, Deku wasn't obsessed with women's underwear specifically - or at least he was more subtle about perving on their female classmates than he was Katsuki. And Katsuki couldn't deny that the constant attention from Deku felt good, addictive. He was used to Deku fawning over him for his quirk or his accomplishments, but that look of slack-jawed awe? That was new. That was fucking hot, was what it was, and Katsuki wasn't ready to give it up.
So, ok. Deku wanted Katsuki, and Deku wanted Katsuki wearing panties.
Katsuki could work with that.
_*_*_
It was nearly a week later when class was letting out that Katsuki had made his move.
The halls were full of students heading home, and Katsuki was waiting, leaning up against a wall, when Deku and the rest of the nerd squad passed by.
"Oi," he said over the noise. "Deku."
Deku stopped almost mid-word, freezing in place. Katsuki didn't know if it was his expression or what, but when he simply jerked his head to the side and started walking Deku said some hasty goodbyes and promises to meet up later and followed.
Katsuki didn't lead them too far; just to a small room that might have been a meeting room for some club or another, but the important thing was that there was nobody in there and only one door, one that locked.
Katsuki used that lock once Deku was through the door, leaning against it and taking the chance to just look at Deku for a moment.
Deku was just looking at him, his wide eyes and clenched fists betraying his nerves. For some reason that made Katsuki breathe out a silent sigh of relief. His own heart was thumping in his chest, so knowing that Deku was nervous made him feel a little more secure.
Katsuki didn't say anything, he just hiked his shirt up a little and began working at his belt.
Deku's sudden intake of breath was loud in the silence of the room, but Katsuki didn't let it distract him, undoing the buckle while staring the entire time at Deku, just daring him to say or do anything. The other boy seemed frozen, eyes focused on where Katsuki's hands were working, a slight flush blooming across his cheeks.
If anything Deku's eyes grew even wider when Katsuki finally slid his zipper down and let his uniform slacks fall off his hips. He was wearing the panties Deku had bought him. All day he wore them, just waiting for that moment. Every shift, every movement he could feel the satin slide against his skin, feel the ruffles on the butt crunch underneath him. They were a constant reminder of what exactly he was wearing, what he was planning on doing. He'd been half hard most of the day.
He was soft then, though; nerves finally getting to him. He and Deku just looked at each other for a long moment before Katsuki swallowed, dry throat clicking. "Well?" He said, voice rough and yet still softer than he wanted it to be. "You gonna stand there all day?"
Deku jumped at the sound of Katsuki's voice, his gaze darting between Katsuki's face and his waist, like he want sure if Katsuki was trying to trick him or not. When he took a hesitant step forward Katsuki found himself standing up straighter, flattening his hands against the door, opening himself up to Deku.
Deku got close enough to Katsuki that he could feel the warmth bloom off the other, could smell the scent of Deku's shampoo. When Deku lifted a hand towards Katsuki's hip and paused, meeting Katsuki's eyes, he nodded, closing his own eyes because having Deku so close was almost too much, watching him actually touch...
He gasped at the barely there sensation of fingers at his hip, the back of Deku's knuckles brushing the skin just above the lace edge of his panties. Deku seemed to pause at the sound, but after a moment where all Katsuki could do was bite his lip so that he wouldn't, couldn't make any other noise his hand moved again fingers trailing down onto the material itself while his thumb brushed the spur of his hip.
"It looks like they fit okay," Deku said, voice soft.
Katsuki snorted, cracking one eye open to look at Deku. "Is that all you have to say, idiot?"
"They look good on you," Deku added, and fuck that made Katsuki shiver. Just having someone acknowledge him wearing them. He couldn't believe it.
The feeling of another hand on his opposite hip was both expected and wholly new, because that meant that Deku really was right up in his space, and that was Deku's breath against his collar, wasn't it?
"Kacchan," Deku said, and there was a note in his voice that Katsuki didn't think he'd ever heard before, a yearning, a desire for something that only Katsuki could give him. "Can I…?"
"Fuck," Katsuki breathed, closing both eyes again. "Do what you want, Deku."
His eyes flew open when Deku dropped like a sack of bricks, half expecting the nerd to have fucking passed out or something. But no, instead Deku was kneeling in front of Katsuki, hands sliding his pants down further as he helped his thighs, fucking rubbing his face into the stretch of fabric over Katsuki's hip, nose just inches away from Katsuki's dick.
Katsuki let out a breathy laugh; fucking Deku going from zero to a fucking thousand. Going from quirkless to inheriting One for All, from just looking at Katsuki to practically slobbering over him.
Fuck, the panties really did it for Deku, didn't they?
"Perverted freak," Katsuki said, grinning down at Deku.
Rather than take offense, Deku just smiled up from where his nose was buried in Katsuki's junk. "I'm not the one wearing frilly underwear," he said.
"If you're going to insult me," Katsuki said. "Do it right. Don't just call em underwear."
Deku nodded, closing his eyes to nuzzle at where Katsuki's growing erection was stretching the fabric, his hands sliding up the back of Katsuki's thighs until they cupped his ass, fingers buried in the ruffles. "Panties," he corrected, voice low and almost reverent. "Katsuki's pretty panties."
"Fuck," Katsuki hissed, feeling his cock twitch at Deku's words. "Say that again."
"Pretty, pretty panties," Deku said easily enough, giving Katsuki's thigh a kiss. "Pretty Katsuki in her pretty panties that I bought.
"No," Katsuki gasped out. Deku's words were so close to what he wanted to hear but they weren't right. "That's not why I… fuck…"
"Of course not," Deku said, switching tracks smoothly. "You just want to look pretty, don't you. Everyone thinks you're so tough, they don't realize how cute you really are."
And fuck, Katsuki's legs fucking quivered at Deku's words. His head fell back, thudding against the door.
"Tell me to stop if you need to," Deku said, giving the head of Katsuki's cock a kiss through the fabric of his panties. Katsuki just nodded, unable to look away from where Deku was kneeling between his legs. Deku didn't waste any time; giving Katsuki's cock a long lick up the length of it, suckling on the head through the fabric. When he pulled back there was a wet spot there, dark against the smooth material. Deku stared at the spot, the look in his eyes hungry, famished, and it made something in Katsuki's belly clench to see it.
"What are you waiting for, Deku?" He asked, voice strained.
"Patience, Kacchan," Deku mumbled, leaning in to give Katsuki's dick another reverent nuzzle, and what the hell, the diminutive never hit him like that before, but fuck if it didn't do it for him in this context. It was cute, harmless. He wasn't Bakugou like this, brash and loud and angry. He was Kacchan, who Deku called pretty.
"Fuck, fuck," he gasped, and if it wasn't for the fact that Deku still had his hands on Katsuki's legs he would have probably collapsed. He didn't let Katsuki fall, instead held on harder, hard enough that Katsuki would probably be finding bruises later, and lipped at the waist of Katsuki's panties, pulling them down enough that the head of his cock was freed.
Deku didn't waste any time, pausing just long enough to give the head a kiss and then he was swallowing it down, hands moving back to Katsuki's hips just so that he could grab at either side of his panties and tug. The panties strained but didn't rip, but more importantly they were pulled down just enough that Deku had plenty of room to work with.
He couldn't take all of Katsuki's cock, more enthusiastic than skilled, so he let go of one hand so he could stroke what his mouth couldn't get. Katsuki didn't care, though, he was too distracted by the sensation of Deku's mouth on his fucking cock, holy shit.
It didn't take him long to cum like that, already on edge all day just thinking about what he'd do after class ended. He did try to warn Deku, just let the guy know he was about to cum by tugging at his hair, gasping out, "Shit, I'm gonna, fuck…" Despite how he couldn't get the fucking words out, Deku still seemed to know what he was trying to say and instead of pulling away or slowing down he just fucking hummed and took Katsuki deeper. He couldn't help but cum down Deku's throat at that, holding back a physical impossibility.
Deku choked a bit, apparently taken by surprise even though he literally fucking asked for it, and Katsuki couldn't look away, panting as he watched Deku pull away, a line of something sticky connecting his cock to Deku's bottom lip until it snapped. The way Deku was kneeling Katsuki could see his erection pressing up against his slacks.
"Get up here," Katsuki rasped, tugging where his hand was somehow still tangled in Deku's hair until he was standing, wrapping an arm around Deku's shoulders so that they were pressed close together. His free hand caught Deku's cock, making the other boy let out a choking noise, and, after a moment of finding a good grip at the unfamiliar angle, began stroking him off.
Deku whimpered, burying his face in Katsuki's neck, panting breaths puffing hot against his skin, and Katsuki needed more. He needed to feel Deku's mouth against his, that fucking fantastic mouth that made him feel so good. Deku was apparently on the same page; when Katsuki nudged him with his nose Deku just turned his head and there they were, mouth to mouth, breathing each other's air, and then, fuck, that was Deku's lips on his. Wet, desperate, and tasting of Katsuki's cock, and it was hot enough that Katsuki felt a pulse of arousal and if they kept this up Katsuki was going to get hard again.
"Come on, Deku," Katsuki pulled enough away to growl. He hooked one leg as much as he could around Deku's, as hobbled as he was still by his pants, bumping his hips against seems
Deku's. At that angle Deku had to be able to feel the satin of his panties. "Stop wasting my time and cum for me. Mess up these fucking cute panties you got me."
That did it for him. Deku shuddered, hard, letting out a pained-sounded whine as he came, spilling all over Katsuki's hand and, yeah, on those cute little panties Katsuki was wearing.
They just breathed for a long moment. Finally Katsuki pulled away, just a little too look down at his wrecked panties. "Ugh," he grunted, wrinkling his nose. Fucking gross.
"Sorry, Kacchan," Deku said, still panting. "I'll buy you another pair."
And that… Okay. Katsuki could live with that.
"You better, nerd."
Deku just laughed.
_*_*_
"I look fucking ridiculous," Kacchan grumbled, his voice low through the door of the bathroom attached to their room.
"You look fine," Izuku said, trying to keep the humor out of his voice and not sure if he succeeded. He leaned back from his position in the bed, hands skimming over the covers, just fidgeting a bit as he waited more or less patiently for Kacchan to leave.
"You got x-ray vision now, nerd?" Kacchan said, though there wasn't any heat in it. Still, he opened the door a moment later.
In a way they were celebrating. They had both celebrated top of their class at UA (Kacchan holding the no. 1 position because of course he did) and had gotten into an agency together. They were finally pro heroes, their dream achieved.
But most importantly, they were finally living on their own in a modest apartment. No chances of anyone walking in on them, no worries about making sure that anything embarrassing was left out. They had all the time in the world to actually do what they wanted.
For Kacchan to wear what he wanted.
That night he was wearing a full outfit in a delicate pale pink. A bandeau bralette wrapped around his chest matched the elbow length gloves, both made of the same stretchy lace material Izuku knew he'd come to prefer over the years. A satin waist trainer nipped his waist in, making it a little hard to breathe and harder to move freely. The attached garters clipped to a pair of thigh-high stockings that stretched down to a pair of white patent-leather heels. His panties were comparatively plain compared to some that he'd worn in the past, being just white cheeky briefs, but right in the middle of the back was a big white silk bow.
If anything happened Kacchan would be in no position to fight. Izuku knew he actually could, and could kick ass while doing it, but he was hobbled by his clothing, clothing that looked nothing like what a badass hero would wear in the field.
It was perfect.
"Say something," Kacchan muttered, shifting in place. Izuku knew he'd shaved all his body hair from the nose down, rubbed a floral-smelling lotion against all that smooth skin, and Kacchan seemed distracted by the way his inner thighs slipped and slid against each other. His face was bright red, and he couldn't seem to be able to meet Izuku's eyes for longer than a moment or two, the striking red of his eyes enhanced by the mascara and liner he wore.
"Come here," Izuku said, smiling softly at Kacchan. Kacchan glanced once more at him and then away, then slowly picked his way across the room, a little unsteady in his heels on the carpet.
"How do so many people fucking fight in these things," Kacchan grumbled, barely audible.
Izuku shrugged, reaching out for Kacchan as he got close. "Practice, probably," he suggested. When Kacchan was close enough Izuku wrapped his arms around his waist, resting his chin on Kacchan's belly as he looked up at him.
"You're beautiful," Izuku said, voice hushed.
Somehow it looked like Kacchan got even more red, somehow still shy about this even after so long. "Fuck you," he said, looking away. "I look like an asshole."
"Nope," Izuku denied, chin rocking on Kacchan's belly as he shook his head. "Beautiful. Adorable. My sweet Kacchan who dressed up all pretty for me."
Izuku could feel more than see Kacchan's gasp, but at least that got Kacchan relaxing a little, steel muscles softening under his arms.
Izuku's hand slid down, tracing the line of Kacchan's spine until the tip of his long middle finger dipped under the waist of Kacchan's panties and between the muscled curve of his ass. A bit of dampness greeted Izuku's touch.
Izuku grinned up at Katsuki, sure he looked like all of his birthdays came all at once, and said, "You already prepared yourself for me?"
"S-shut up," Kacchan grumbled. And hey, if Kacchan was already stuttering he must really be feeling shy. It just made him even more adorable in Izuku's eyes.
Izuku couldn't even say why Kacchan wearing such cute things made his heart beat fast, but there was just something about Kacchan looking so soft and cute, so different from the tough exterior that he tried to project the rest of the time, that just made it so special. That only he got to see this side of him.
… Did he prep himself before or after he put the stockings on?
"C'mere," he said again, pulling Kacchan forward by the grip he had on him. The only place Kacchan could go was Izuku's lap and do he straddled Izuku, smooth legs on either side of Izuku with his knees digging into the soft surface of the bed. He'd barely situated himself when Izuku pulled him in for a kiss, sort and sweet, Kacchan's lips a little sticky from the shimmery pink gloss he'd put on.
The kiss didn't stay sweet for long, Kacchan deepening it first, biting gently at Izuku's lips, tongue flickering to soothe the bites right after. Izuku let him take the lead, figuring Kacchan needed to assert himself somehow after putting himself out there, his hands tracing mindlessly tracing the curve of Kacchan's thighs and ass, thumbing at the straps of his garters.
Izuku let himself fall back on the bed so that Kacchan was crouched over him, still kissing, but as soon as Izuku was flat out Kacchan tore himself away to attack his neck with kisses and gentle bites, mouthing at the skin where it made Izuku twitch and hiss.
At the feel of Kacchan's hands sliding up Izuku's sides underneath his shirt Izuku had to stop him, blocking the path his hands were taking and holding them in his own hands.
"Hey, hey," Izuku said. "I thought I was supposed to be making you feel good tonight?"
Kacchan rolled his eyes. "What do you think thisis, nerd?"
"Not me taking care of you," Izuku said, sliding up and out from under Kacchan. "Lay down on your belly, please."
Kacchan grunted but moved, laying down with his arms wrapped around a pillow, Izuku's touch to the inside of his thighs encouraging him to spread his legs just enough for Izuku to kneel between.
Izuku had to take a moment to just appreciate the way Kacchan looked all spread out for him. It was always such a nice view, but with Kacchan wrapped up in pink and white, his shoulders still hunched a little shyly, Izuku almost wanted to take a picture to commemorate the occasion. He just had to settle for taking in his fill, storing the sight to memory.
"You gonna do something before I die of old age?" Kacchan snapped, impatient, testy.
"I will, Kacchan," Izuku soothed, reaching out to tug on one of the trailing ends of the big bow on the back of the panties. The bow was too large and bulky to be worn under clothing, designed to be seen. "This is my favorite part," he added.
"You," Izuku continued, leaning up to plant a kiss behind Kacchan's ear.
"Are so," another kiss, on Kacchan's spine right above the upper hem of the waist trainer.
"Damned," a kiss above that fascinating how, satin brushing Izuku's chin. Kacchan began to shiver, Izuku pet his sides in long strokes, like soothing a nervous horse, gently pulling his hips up.
"Cute," Izuku finished, planting one last kiss on the cotton covering Kacchan's hole, making him twitch.
"Fuck" Kacchan gasped, shifting his legs until he was able to cant his hips back for more, opening himself up for Izuku, who was continuing to kiss and lick Kacchan through the fabric of the panties.
Izuku was right where he loved to be; nose deep in Kacchan's panty-clad ass. It was such a nice ass, tight and perky and filled the palms of Izuku's hands just right, and he was torn between bemoaning the fact that Kacchan prefers his baggy pants whenever possible and smugness knowing that it was Izuku who was the only one who was able to properly appreciate it.
"I'm going to fuck you in those panties," Izuku said, his voice coming out more like a growl than he expected, and oh, Kacchan shivered and spread his legs wider, invitingly, canting his hips back to welcome Izuku right where he needed him the most.
"You going to fuck me anytime soon?" Kacchan asked, his voice a low gravel that just twisted in Izuku's belly, even as he smiled at Kacchan still trying to found so tough. "Or are you just going to keep sitting back there with your thumb up your ass?"
"How can you talk like that but look so cute?" Izuku asked, giving Kacchan's ass a little slap just to watch it wiggle. He didn't use even a fraction of his normal strength, let alone his enhanced strength, but Kacchan still jerked and moaned, though Izuku figured that it may have had mostly to do with what he said rather than the actual slap.
Izuku backed off just enough to hook his fingers in the waistband of Kacchan's panties and pull the back down, just enough to reveal the peachy globes of his ass. He couldn't get the panties down further without undoing the straps of Kacchan's garters, which he just wasn't prepared to do.
Izuku used his grip on said peachy globes to spread Kacchan wide, revealing Kacchan hole. Izuku didn't wait, just dived in, lathing the skin with long, adoring licks. Kacchan tasted clean and fresh, but almost overwhelmingly of…
"Cherry, Kacchan?" Izuku backed off to ask before diving back in.
"S-shut uuup," Kacchan moaned. Kacchan wiggled again, Izuku guessing he was trying to turn around to glare at him, but Izuku had more important things on his mind. "It… it was the only kind we had in there."
Izuku knew for a fact that wasn't true; they had a plain unflavored bottle of lube in the bathroom. He let Kacchan have his lie if it made him feel better. He really was more adorable than he let on.
Izuku had to reward him by taking his time eating him out, nibbling gently at his rim to make him twitch, tonguing him slow until Kacchan was whimpering into the pillow he still had a death grip on.
Kacchan was able to let go of the pillow for long enough to reach back, tangling his fingers in Izuku's curls and wrench his head back. "Come on," he panted, tugging Izuku's hair. Thankfully he was at an awkward angle or else it might have really hurt. "I'm ready, get up here and fuck me already."
"Kacchan is so impatient," Izuku teased, wiping off his mouth, messy from lube and spit, with his forearm. He knelt up on the bed, though, disentangling his hair from Kacchan's death grip. After Kacchan asked so nicely Izuku just couldn't deny him.
When Izuku finally, finally, was able to guide his dick inside Kacchan they both groaned at the feeling. Izuku because he'd been hard ever since he got a taste of the cherry-flavored lube Kacchan prepped himself with, Kacchan because, at a guess when Izuku reached around and could feel where Kacchan's cock was stretching it the front of the panties, he was so hard he was throbbing, leaking enough that the panties were damp and tacky at the head.
"Don't cum yet," Izuku warned. "You don't want to ruin these, don't you?"
Kacchan just groaned wordlessly into the pillow he'd pressed into his face. That wouldn't do; Izuku wrapped his arms around Kacchan's torso and pulled until he was more or less sitting in Izuku's lap at an angle, the perfect position for Izuku to nip and nibble on the long column of his throat, sucking loving kisses that may bloom into bruises later.
The new angle let Izuku fuck Kacchan deeper, harder. With every thrust Izuku could feel his balls brush up against that bow which, yes, might have been a little ridiculous but it was just so cute Izuku couldn't help but love it a little.
It wasn't long before Kacchan was fucking himself back on Deku's cock, his movements becoming jerky and stiff, desperate. Izuku gripped Kacchan hard through the panties rubbed once, twice, and Kacchan stiffened, a low whine clawing it's way out of his throat as he came, flooding the panties with his cum.
Izuku was brought over with Kacchan, the sudden hard squeeze of his muscles too much to resist. He fucked deep one last time, arms wrapped tight enough around Kacchan's ribs hard enough to feel them creak as he spilled, his clenching fingers tearing into the delicate material of the bandeau.
They both took a moment to breathe, Izuku pressing a kiss the sweat slick curve of Kacchan's shoulder.
"You're buying me new… everything," Kacchan said. Izuku huffed a laugh. Somehow they'd managed to put a run in one of Kacchan's stockings, the bra was torn, and the less said about Kacchan's panties the better.
"Okay Kacchan," Izuku said, voice soft and amused.
A moment later, Izuku asked,"Hey, Kacchan?"
"Yeah, nerd?" Kacchan said affectionately.
"Next time can we get something in green…?"