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Izuku wakes up to calloused fingers stroking his face.
“Why aren’t you in my den, baby?”
Izuku groans but doesn't say anything. He knows Katsuki wouldn’t particularly care for his answer anyway, and he’s proven right a moment later. Strong arms scoop him up from his warm cocoon, covers and all, and ignore his whining noise at being disturbed. Steps rock him back to sleep as he’s taken from the guest bedroom – unofficially Izuku’s room, not that Katsuki ever leaves him alone for long enough to use it – and to the master bedroom.
Barely lucid, he vaguely remembers being laid down and pulled back into a warm chest, legs tangling with his, and what might have been Katsuki scenting his neck, deep sniffs as if checking that the alpha was the only one on him.
“Good boy,” Katsuki murmurs, and Izuku knows he was right. Stupid possessive alpha. As if Izuku would be stupid enough to turn up smelling of someone else.
The last thing he remembers is a warm hand settling low and proprietary on his tummy before he surrenders back to sleep.
Izuku technically knew Kacchan before the alpha became his sugar daddy.
They were childhood friends and the day Katsuki and his family moved away was a defining moment of his life. Katsuki, tear stricken and fuming as he was forcibly pulled away from Izuku, and Izuku wailing as he tried to reach back.
Izuku had never had much money growing up. His father had disappeared from the picture sometime before he was five, and it left his mother to earn and look after him. Even with her long shifts as a nurse she couldn't afford day-care, so she often left him with her closest friend, Mitsuki Bakugou, who just so happened to be one of the richest women in their neighbourhood.
Well, with Mitsuki's nanny, and Mitsuki’s son, eight years older than Izuku and independent enough that the nanny was almost unneeded. Izuku still suspected that Mitsuki just kept hiring her as an excuse to pay for Izuku's childcare for Inko. That was the sort of thing she'd do.
But that's not important. What's important is that that was how he met and lost Katsuki. But he'd been young, and gradually but eventually his memories of his best friend dulled and faded.
(The same couldn't be said for Katsuki.)
By the time Katsuki and his parents moved away, Inko’s and Izuku’s situation still hadn't changed but at least he had been old enough to not need the nanny.
Izuku learnt about sugaring in his first year of university. His tuition was fine, his student fees would be debt he'd carry for life but he wouldn't have to pay until he was earning: and that was for future Izuku to worry about. The more immediate problem was his rent. His food. His bills. His goddamn coffee from the university cafe. The loans covered some of it, but not enough.
The problem was, he was not the only student in a similar situation. The job market in the city of his campus was oversaturated and Izuku never managed to find a job that would pay enough. He didn't want to put the costs on his mother, so he figured it was either selling his kidney on the black market, or getting rich people to pay him for his time and fully intact body. It wasn't a hard choice.
The first high society function he attended with a date, green in more ways than the obvious, vastly overwhelmed and feeling like he stuck out in the swathes of rich elite, he reunited with Katsuki. Twenty-six years old and heir of Dynamite Group, a company so prolific it was a household name. Still young, but so confident and well dressed, with an air that demanded respect, that he made the rest of the people in the room look fumbling and poor despite the fact that the majority were at least ten years his senior.
Somehow, Katsuki stole Izuku from his date with a look that dared the other alpha to fight him and a possessive arm around Izuku's waist. That night ended with Izuku's throat, knees, and arse sore, and his dress ruined beyond scraps of fabric that had left chafe marks on his wrists. He'd expected that to be the end of it.
It was not the end of it.
When he'd left Katsuki's town house late the next day, he did so wearing Katsuki’s shirt, cut-off shorts that used to be a pair of designer jeans (complete with a belt with new holes pinned through it), and – somehow – a new phone that was worth more than his life that had Katsuki's number and Katsuki’s number only programmed in it burning a hole in his pocket. The chauffeur of the car that Katsuki had called to take him home didn't dare meet his eyes.
The alpha had decided then and there that he'd be Izuku’s sugar daddy.
His only daddy. The sole provider of Izuku's… everything.
And he didn't take no for an answer.
Izuku would soon come to learn that this was a trend in Katsuki's behaviour.
Izuku wakes up to liquid heat running through his core, three fingers spreading his pussy wide, and a hard cock pressed between his asscheeks, as he’d half-expected. He hadn’t expected it to be so early though. The room still dark and the night quiet apart from the wet sounds of Katsuki’s fingers within him and the chuffs the other makes into his neck. The pillow the side of his face is pressed into is damp with drool; he tries to shift but can only move slightly with the way Katsuki has him pinned on his tummy.
Izuku still doesn’t particularly want to wake up yet. He hovers on that line between wakefulness and slumber. He’s exhausted, a combination of exams and intensive labs over the last couple of weeks meaning he hasn’t had much sleep.
Sensing Izuku's awakening state, Katsuki starts hushing him. Scent rising to soothe him back into sleepy pliancy. Soft lips on his temple, the fingers in him stilling, but the hand on his hip tightening in warning when he tries to move.
Izuku’s wet, very wet, but he’s not the hot, frantic mess he usually is when Katsuki goes to town on him. His clit untouched, as are the pleasure points Katsuki usually abuses until Izuku’s gushing slick and desperate to be filled.
It can only mean that Katsuki hadn’t wanted him to wake up.
“Kacchan?” he murmurs sleepily.
“Shh, go back to sleep,” Katsuki coos, pulling his fingers out slowly and making way for an aching emptiness. A shift, and the head of Katsuki’s cock slides to take their place. Izuku vaguely wonders how that’s meant to soothe him; the head enters with a pop that makes Izuku jolt, while the rest slides in smoothly with an embarrassing squelching sort of noise, pressing deliciously as always with only the barest hint of a burn. Nonetheless, Izuku shuffles out a leg to the side to make the stretch easier.
It's been a while since Izuku’s taken it. Exam season means he hasn’t seen Katsuki for a few weeks. Normally, he would’ve given himself a day off, but Katsuki had demanded his availability immediately.
Either way, Izuku should be tighter than this. It always takes a while to adjust to Katsuki the first time. The girth ensures there's always a little bit of a hitch in his breath as he takes it.
Well, normally. Not today, it seems.
At the back of his head, the logical part of his brain wonders just how long Katsuki’s been prepping him.
“I’ve got you, just relax and keep my cock warm for me.” Katsuki’s voice deepens, a growl catching the rasp of it. Katsuki’s hips swivel once, and then settle, root deep inside. With Katsuki's hands on his hips, Izuku is helpless to do anything but take it. “Just like that, good boy. Such a good omega for me. It's been so long since I've gotten to see you, I just want to sleep like this. Makes me feel close to you.”
This bastard, knowing the precise words that turn Izuku into putty.
He doesn’t move any further. Hands softly caress Izuku’s spine in a mimicry of a massage. “Go back to sleep, Deku,” he orders this time.
Izuku fights the combined force of his drowsiness and Katsuki’s soothing pheromones.
“Couldn’t you wait until–” Izuku opens his eyes enough to squint at the clock on the bedside table, and has to take a breath when he realises it’s only 6 am– “a more reasonable time of the morning?”
Katsuki gets a hand under him and twists and presses his fingers against his clit in a way that has his breath speeding up, rocking as much as he’s able, legs still pinned down by Katsuki’s. He’s got him caged, and Izuku tiredly wonders if the alpha had planned this.
“Didn’t mean to wake you up,” Katsuki says as if it were an apology. “Sleep, Deku. It’s my day. Let me have this.”
His day: it’s Katsuki’s birthday, and he should be relaxing on his time off.
He’d asked Izuku to spend the next few days with him instead, shelling out an obscene amount in his demand for Izuku to accompany him for the entire 24 hours of each day. Izuku isn't even allowed to leave the house unless Katsuki says so.
Izuku has been in this arrangement for long enough to know that Katsuki woke up early by habit – like he normally does for work – but was already horny and decided he couldn’t wait, even though he knows Izuku doesn’t like waking up until the sun is visible.
At least he wasn't demanding Izuku to wake up for it. He isn’t sure if Katsuki even wants to finish (he still isn’t moving) or if he really does just want to sleep like this, but either way it won’t bother Izuku.
Izuku decides to let the birthday boy have what he wants, and drifts back off to sleep easily. Exhaustion too much to fight against, and the soft rock of Katsuki’s occasional shallow thrusts and pleased rumbling only helps send him off.
When he wakes up at a far more reasonable time, Katsuki is still rocking inside him. He's not attempting to hide it this time.
“Wha-?” Izuku moans on a particularly hard thrust, hitting that spot that makes his toes curl. A mouth curls across his neck, sharp teeth warning him not to move. He goes still, and gets a rewarding growl.
He’s somehow been flipped on his back, a pillow under his lower spine to elevate him, legs held wide but not spread enough to make him uncomfortable; Katsuki a writhing mass above him.
His tummy is clenched tight and warm. He’s close to coming. It's very bewildering to wake up to.
“Isn’t this what you call a more reasonable time of the day?” Katsuki teases, licking up his throat. The skin feels tingly and sore, like he’s been at it for a while. The faint rasp of stubble on Katsuki's chin ticklish against it.
His hips ache, his cunt aches, and he feels distinctly wet and hot. He’s been moved from one side of the bed to the other, he realises. He sticks a hand out and, yep, there’s a wet patch where he had been.
How long has Katsuki been going?
“Not long. Had a nap. Woke up again a few minutes ago” Katsuki grunts, hips slapping. It feels like a little lie. Izuku can feel his knot, it’s almost fully expanded, and that takes time. “Lemme knot you, baby." It should be a question, but it doesn't sound like one in Katsuki's mouth. "I’ll make you feel so good. You moaned for it in your sleep, I know you’re feeling good. I know you want it.”
Katsuki pushes deep, so Izuku can feel the beginnings of a stretch as the knot fills out. It knocks a high pitched whine out of him, and he knows without looking that Katsuki’s grinning smugly. He’s anticipating Izuku’s yes, self-assured in his ability to get what he wants.
Izuku so rarely lets him knot him, not outside of his heat.
“Condom?” Izuku says, and knows that it’s as good as giving his acceptance.
Katsuki hisses a victory, mouth moving to devour the words out of Izuku’s mouth with bruising pressure, tongue curling around his possessively. And then he pulls back, swivels his hips in such a distracting manner that Izuku is very much reminded that he's on the verge of what feels like a world-moving orgasm and so almost doesn’t hear him say. “None left.”
Izuku groans, and hopes Katsuki thinks it’s out of frustration. He really doesn't want to encourage the alpha’s breeding kink more than he already has. Katsuki always takes a mile when you give him an inch: it's probably why he's such a good businessman.
And Izuku really is frustrated, a little bit. For more than the obvious reasons. Katsuki always comes so much, but it's even worse with a knot. They had some sort of morning plans Katsuki had organised and Izuku doesn't want to have to empty himself out in the small amount of time before they have to leave.
“No condoms at all?” he asks, hopefully. It's not his heat, they’re both on strong contraceptives, and both he and Katsuki are clean so that’s not an issue, but it’s just such a hassle to get out, even as much as he likes the feeling of Katsuki coming in him raw.
Katsuki likes it too, almost too much. He gets huffy when Izuku keeps making him wear a condom, so it's not much of a surprise that his answer is a very satisfied, "None at all."
"I swear there were still a few left in the bathroom last time I was here."
Katsuki doesn't bother to answer, too caught up in chasing his orgasm, so Izuku presumes he's remembering wrong. It has been nearly a month after all, and he's still sleepy and not thinking straight.
Katsuki's pistoning speeds up until his heavy balls slap against Izuku's backside with every thrust. His fingers slip down to Izuku clit, working with expert precision and his orgasm catches up with him, shocking him into full alertness.
Katsuki groans as he squeezes down and follows suit, the sound unhinged as his knot inflates and he comes and comes, filling up Izuku’s tummy with warmth. A howl smothered at the back of his throat as his teeth snap over Izuku's jaw once more. Izuku’s not much better, writhing as he’s forced to clamp down on the swelling girth, too out of it to be prepared for how it splits him apart, sending any higher thought scattering in the wind.
It’s barely discernible, but Izuku feels much more bloated than he usually does after one knot, and he deliriously wonders if alphas truly were able to get backed up after a few weeks of not coming.
But that's ridiculous. Surely if Katsuki was that pent up he'd have called Izuku, or even gone to someone else. God knows the number of high-end escorts Katsuki knew before Izuku became his baby.
Izuku has become very practised at ignoring the swell of discontent that fills him at that thought.
The knot goes down some time later, Katsuki idly grinding now and then, pulling Izuku back and blanketing him until there’s barely any space between them. He’s sweet in the aftermath. Doting as he pressed butterfly kisses to any part of Izuku’s skin he can reach, nuzzling affectionately, even if the resultant scenting is a bit obnoxious on top of the obvious sex pheromones that have been caked on them both. Izuku just dozes and lets him do as he likes, still tired and now knotted and achy on top of that.
“We’ve got 20 minutes till we need to leave,” Katsuki says when the knot finally goes down. He sounds a little mournful.
Izuku sighs, feeling Katsuki’s cum leaking already. He knows that’s not enough time to entirely clean out the deep seated come of a knot and also get ready. He thinks that's maybe why Katsuki waited to wake him up. “Get me a plug?”
He rolls his eyes at the light of victory in Katsuki’s eyes. The small plug, shaped like a beta’s short cock with no knot, slides in easily.
They shower together, and Izuku means to use the time to get some out, he really does, but Katsuki is wet and distracting, his mouth even more so. Izuku comes on a tongue sucking at his clit and lapping carefully around his slit, but Katsuki’s still hard. Shakes his head when Izuku tries to sink to his knees, just slides the plug back in with slick fingers.
In retrospect, this perhaps should’ve been a red flag. Katsuki never turns down head.
“We’ve got no time," Katsuki says, stepping out of the rainfall shower. He wraps Izuku in a robe before donning one himself. "We need to get dressed if we want to leave on time. My assistant picked up breakfast for us, we can have it in the car.”
That definitely should have been a red flag. After all, Katsuki rarely if ever cares about inconveniencing others by being late.
Katsuki carefully lays down a set of clothes on Izuku's side of the bed, as always. He likes picking for Izuku when they go out together, and Izuku prefers it too. He’s never been fashionable, and the places Katsuki tends to take him to often have strict if not silent dress rules. Plus, Katsuki always dresses him so pretty, kind of idol-like, in clothes Izuku would never feel brave enough to experiment with on his own. He likes it, as much as he resists Katsuki buying more than the occasional outfit for him.
The alpha tends to get carried away if Izuku gives him even an inch. Last time it had been Izuku admitting he wanted some new kitchen equipment, and ending up with half of Harrods' kitchenware section in the tiny, shared kitchen of his flat while his flatmate, Ochako, broke a rib laughing at him. He’d only wanted a new frying pan and a good spatula.
Most of that stuff is in Katsuki’s kitchen now, who actually knows how to use it all.
In fact, a lot of Izuku’s stuff stays at Katsuki’s. Not enough space at home for all the things Katsuki likes to gift him with.
It's easier this way, anyway. Katsuki likes him to be in the apartment to meet him when he comes home on the days Izuku is scheduled to come over, and he often stays the night. Or the weekends if it lines up.
It's just easier, that way.
Talking of getting carried away.
The place Katsuki takes them is one of his many businesses, a beautifully decorated boutique with ample space and high arching ceilings. There’s few other clearly rich customers in the shop who glance at them, but Izuku barely manages to catch a glimpse before they’re ushered upstairs and towards a set of private rooms. Katsuki acts like this is completely normal, pulling Izuku down on an ornate settee and accepting a glass of whiskey one of the attendants offers him. Bewildered, Izuku asks for some water when they offer him his own drink. He’s given what he can only describe as a chalice to drink it out of.
“The models will be out shortly, sir,” the ringleader of the attendants says, bowing slightly.
Katsuki just nods and waves a hand, dismissing them all. Cuddled against his side, Izuku is treated to a number of snide looks from some of the group and he sighs, used to it. He knows that many would kill to be in his position.
Izuku’s not entirely sure what Katsuki does, exactly. The alpha gave him some jargon-ridden explanation the first time he asked and now never answers when Izuku presses, just says he’s working under his mother who’s the company leader, but Izuku thinks it has something to do with clothing. A fashion empire Katsuki’s parents had started and he’d taken over. It's the only explanation he has for the number of clothing stores Katsuki seems to own.
Whatever it is that Katsuki is in charge of, it’s just one of the many companies Dynamight Group owns. Something a quick google search had impressed very thoroughly upon Izuku in the car ride back from Katsuki’s the night after their reunion.
Whatever it is, Katsuki and therefore Izuku are treated with the utmost respect wherever they go. People running around to get them anything they’d like on the drop of a hat. Katsuki swans through it all like it’s normal, but Izuku can never get used to it.
Katsuki has this type of irreverence to rules that Izuku assumes is due to him growing up rich and growing richer with age. It’s kind of assholish and, to be honest, when they first met it was one of the things Izuku only stuck around with because he was there for the money. If he high-tailed it every time a rich person he was sugaring for acted like a dick he wouldn’t be able to stay in the business.
These days he just kind of sighs and goes along with it. Katsuki is generally a good guy. He tips everyone in the service industry he comes into contact with; tips them more when he thinks Izuku is looking because Izuku smiled once when he did and now Katsuki looks for it each time like a dog performing a trick and anticipating the reward. But at least he’s not completely rude, he saves that for the other rich arseholes in his life.
But it leads to fun things too. Things Izuku had never thought he'd have the guts to do but that with Katsuki make him feel young and stupid but safe. Always so safe.
“What are we here for, Kacchan?”
“Your new wardrobe, of course. I’ve been meaning to get around to this.”
"It's your birthday, Kacchan, why are you shopping for me?"
Katsuki just takes a sip of his drink, waving at the attendants in an indicator to begin.
The attendant nods. “We shall begin with evening wear.”
On queue various models come out, already dressed in various gorgeous looks, and do a walk of the room before going to stand to the side as more models come out. It’s a catwalk, just for them.
“Kacchan,” Izuku whispers, “I really don’t need all this effort. I could just try on a dress or two.”
“Hush, baby, this is most efficient. We can’t keep buying last minute when I take you out somewhere new, you need a wardrobe.”
“I have enough clothes already, Kacchan,” Izuku tries to resist, but Katsuki is determined.
“I’m taking you to the annual company dinner in two weeks’ time. You’ll need a new dress, at least, and we’re already here.” Katsuki finally says, impatient. “Don’t argue with me on this.”
When Izuku remains stubbornly silent, Katsuki growls. "Fine, I already know which one you'll wear, anyway." Contrary to his irritated tone, Katsuki's eyes look victorious. Izuku rolls his eyes; he knew that Katsuki had already planned Izuku's look.
He's starting to understand Katsuki. He likes offering the illusion of a choice when it comes to Izuku. But really, Katsuki likes the control. Usually, Izuku is only too happy to let him have it, it just takes a bit of acting to get Katsuki to give in to his urges.
Katsuki clicks his fingers, and the models disperse.
To be honest, Izuku's very new to sugaring and Katsuki is his very first serious daddy. He doesn't exactly have many friends in the business, nor much experience in what to expect. He's amazed Katsuki's stuck with him for so long, to be frank. The alpha has such high standards and Izuku barely knows how to look and act presentable.
He's lucky that he found Katsuki when he did. It wasn't long after they met that the other daddies he'd been in contact with started to wither up. Ignored calls, missed meet-ups.
He'd been on the verge of having to drop out and move back home when Katsuki asked him to sign a contract and be his exclusive baby instead of continuing the consistent but unofficial dates they'd been having. An extensive list of rules and terms that Izuku had read through thoroughly but ultimately agreed to when he’d seen the sums Katsuki was willing to pay.
The first most rule, bolded, underlined, and in bright red, was exclusivity.
The second rule, almost easy to glance over compared to the emphasis on the first, was that as soon as Izuku entered Katsuki's territory, Katsuki had complete and final say over any of Izuku's sexual needs. It should've been a breaking point, but Izuku hadn't hesitated to sign anyway.
Sometimes he thinks Katsuki might know that he's inexperienced. Thinks he might use it to push the line. It's been happening more recently. Katsuki slowly encroaching on some sort of invisible divide between them. Never anything big, and he wouldn't be able to put it into words if he confronted Katsuki with it, but he feels it. Like a shark circling.
But that's a bad analogy. Makes it sound like Katsuki's dangerous or a predator. The alpha is headstrong and aggressive and kind of very intense, but Izuku's never felt scared of him. He's just being dramatic.
After some discussion between Katsuki and the attendants, Izuku takes the dress handed to him. The last thing he sees before the dressing room door closes is Katsuki languidly watching him from the sofa as a bowing beta offers him refreshments. He’s sitting like a king on the sofa in the main boudoir of the fitting rooms. All black suit and dangerous elegance. One leg up with his calf on his other knee, and arm spreading across the back of the couch, taking up space in the dominating way he likes to do.
The girl's shirt slips down her shoulder and exposes her neck, seemingly by accident if her eyes hadn’t been so carefully watching for Katsuki’s reaction. It doesn’t matter though. Katsuki had never looked away from Izuku; he didn’t see her.
Smirking, Izuku closes the heavy velvet curtain to the dressing room, holds up the dress, and gapes.
There’s no way this is right. It's way too revealing for such a formal event.
He puts it on anyway, curious.
It has a flowy, devil-red lace skirt, layered for volume but only barely covering his ass. The same red lace covers a tight, semilucent bodice that emphasises his waist. It pushes up his barely-there chest, giving him a hint of cleavage. Pearls drip in strings across the chest, following the dips of the cups. It's sleeveless, so more lace make up the straps that expose nearly his entire décolletage; a bold fashion statement in a world where one bite to the right area of the neck binds you to someone else.
He looks intensely fuckable, the sort of omega that you'd see being escorted out of high-end sex clubs, but the dress is so obviously well-made and expensive that it almost comes off as elegant.
He goes out, intending to make Katsuki get him the proper dress, but is stunned into silence by the way Katsuki’s entire body language turns predatory upon seeing him.
“Perfect. On the pedestal,” he orders, eyes dark. He takes a sip out of his crystal tumbler of whiskey, ice rattling against the sides, never looking away, before placing the glass down.
Legs feeling like jelly, Izuku takes careful steps up onto the platform set before the mirrors, but he feels very small under Katsuki’s eyes. The room matches those eyes, red red red. Warm but ample lighting makes the room feel intimate and expensive. Katsuki’s eyes make Izuku feel even more so. The plug, for all that it’s relatively small, suddenly comes into his attention as he clenches over it.
Katsuki clicks for a male attendant, who comes running. The previous girl is nowhere to be seen, Izuku is pleased to note. “The shoes.”
The attendant comes back with the shoes, and kneels at Izuku’s feet to help him into them. They’re high, and Izuku wobbles on one as he’s slipped into the second one. The beta below him looks up at him, cheeks pink, as he holds out a hand for Izuku to hold as he catches his balance. He can definitely see straight up the dress.
Nonetheless thankful for the help, Izuku flushes but takes the attendant's hand, ignoring Katsuki's warning growl as they work together to get him secure on both feet. If Katsuki doesn't like it, Izuku figures he's free to get on his knees and do it himself.
Izuku can feel Katsuki’s angry eyes burning a hole right through his back. Burning hotter when the attendant doesn’t leave once the shoes are on, staying to work the clasps around Izuku’s ankles. He lingers a little longer than necessary on the second, fingers whispering around the small buckle.
Katsuki snarls, threatening, and the attendant springs away from Izuku.
"I- I'm sorry, sir. I didn't mean – I'll excuse myself."
"Wait," Katsuki says before the attendant can leave, black-smoke voice smooth. Izuku is suddenly too warm, fever hot and rubbing his thighs together, feeling so empty.
Katsuki sounds dangerous, and Izuku knows what that means.
Flushed and embarrassed, the attendant ducks his head as he turns to wait for his instructions from Katsuki.
“Go and fetch the diamond decagon necklace and the matching earrings from the vaults,” Katsuki orders, a growl still in his voice. “Quickly.”
The attendant all but runs from the room. Izuku doesn’t notice, too busy staring down Katsuki in the mirrors.
“Deku, come here.”
Izuku approaches on shaky legs.
“Did you like being felt up by that extra?”
He’d normally fight back, because in no way shape or form did that count as being felt up, but Katsuki doesn’t look like he’d accept non-compliance. Too deep in whatever mood has swept him up.
“No one touches you but me, you know that.”
“I’m sorry, Kacchan.”
Fingers reach under his skirt and panties to pet around the base of the plug and feel the wet slickness of him. “You don’t seem very sorry.”
“How can I make it up to you?” he says, and hopes the quiver of it isn't completely obvious.
Katsuki blinks, languid but sinister. “Strip.”
Izuku gasps, looking around to make sure they’re the only ones in the room. “Kacchan-!”
“That dress isn’t going to survive if you keep it on for much longer. Besides, as much as I like it on you baby, you know I much prefer you in nothing.”
Despite himself, he feels the warmth those words ignite in him settling in his core. His cunt clenches around the plug, slick wet. These last couple of weeks have been tough on him too. He’s gotten too used to his every need being met and raised by Katsuki. It had felt like he was going insane by being separated from the alpha for so long.
Katsuki sniffs and perks up like a bloodhound. He can smell Izuku slicking. “I won’t tell you again. Strip.”
Keeping eye contact, Izuku reaches behind him for the zipper and steps out of the dress as it falls to the floor with a muffled thump, careful not to snag it on his heels. He feels so exposed in just his underwear, a silk pair of orange lace panties that Katsuki had laid out for him this morning . The room is warm, but Izuku is burning up even beyond that.
“Sit,” Izuku goes to sit next to him, but Katsuki rolls his eyes. “Don’t try my patience. You know where I meant.”
Heart tripping in his throat, Izuku settles down on Katsuki’s lap, knees either side of him. Katsuki pulls him the rest of the way, forcing him to settle his weight on Katsuki’s thighs, his half-hard cock pressing along Izuku’s panty covered lips, pressing the plug in deeper. Izuku bites his lip to hold in the whimper.
“You know what I want, Deku. Better make it up to me before that extra you like so much comes back. Not unless you want him to watch.”
Izuku is so close, hips rolling in Katsuki’s hands. Even better, Katsuki seems to be thickening in him, pressing on all the best places inside him. So lost in his pleasure, Izuku forgets where they are.
“Gonna knot you, baby. Taking it so well. So fucking wet. Perfect and all for me. You will let me. Let me make you round with my come, so much that even that beta extra won’t be able to get close to you without knowing who you belong to. You want that, right?” Izuku clenches down hard, so wet and needy. He does want that. Wants everyone to know he’s Katsuki's, and that Katsuki is his.
Izuku comes down from his high with his face pressed to Katsuki’s neck and knot lodged deep inside him. It cramps a little, too many knots too close together outside of a heat, but feels good too. He’s so full, heavy with Katsuki’s release, and all plugged up with it unable to escape. Katsuki’s sweet in his post-knot frenzy, petting him and whispering to him how perfect and beautiful and tight he is. What a wonderful cocksleeve he is for Katsuki.
It feels a little bit ridiculously good.
And then Izuku remembers where they are.
“Daddy,” he whimpers, vulnerability hitting him too hard when he's so out in the open. He tests the knot, but it’s too thick to budge. He only succeeds in fucking himself on it, and it’s so good that he loses himself again for a little bit and starts grinding down. It's okay though, Katsuki’s fingers join the fray and work his needy clit until the warmth builds and he’s coming again, mouth sucking against the hinge of Katsuki’s jaw as his hips roll.
“Fuck, baby. You’re so good to me, feel how much you’re milking my knot. Needed this so bad after the last few weeks. You’re gonna suck me dry.” Warm hands come up to his side, soothing once again, even as the thumbs stroke over his tummy possessively. “Don’t know how you’re fitting it all.”
Izuku whimpers, because Katsuki’s right. He can feel the alpha’s dick twitching as he comes intermittently, feels a bit like he’s sloshing around.
“What if they come in?”
“Don’t worry baby, the vault is high security. It’ll take him ages to get in there.”
“That means he’ll probably be there now.”
Katsuki hushes him. “He’s still got to find the right things and get out and undergo another search to make sure he didn't take anything else. Plus, that necklace requires a security team to escort it outside of the vault that they'll need to gather. We’ve still got enough time for my knot to go down. Just don’t milk me, you know that keeps me tied for longer.”
Izuku pouts at him. “I don’t milk you.” he says, because he swears that’s just something Katsuki makes up. His knotting times vary on how much Katsuki’s unconscious mind wants to fill him; Izuku knows there’s very little he can do while stuck on it.
“Fuck off, you totally do,” Katsuki argues, deceptively aggressive for how softly his hands stritch through the roots of Izuku's hair. He's learnt to not run his hands through the curls and ruin them. “You’re doing it now.”
So, yeah, maybe Izuku’s fluttering over the cock inside him, testing its give as he clenches over it. But it’s not like he can help it. Katsuki’s knot is so thick, and his cock so long, that Izuku’s every movement works tight muscles over it.
“What if someone comes in?” Izuku asks, trying to deflect. “You want someone to see me like this?”
Because while Katsuki may be fully dressed, zip undone and trousers shoved down just enough to free his cock; Izuku’s only wearing his heels and his panties, which were pushed aside carelessly in Katsuki’s haste to sheath himself. Izuku dreads how wet and clingy they’ll feel after this.
It’s almost too easy to get Katsuki to react how he wants sometimes. As Izuku predicted, Katsuki growls at just the thought, arms coming round as if someone was trying to take him away that very minute.
Only, perhaps Izuku’s not as much a master of manipulation as he thought, because, still growling, Izuku doesn’t predict how Katsuki pushes him down harder on his knot, pushing it impossibly deeper like someone had threatened to take Izuku away. Trying to anchor himself in place as it spurts inside him, pressing thick on all the good spots, so deep it aches.
Izuku shudders over it, so deep. Hands in Katsuki’s hair as the alpha hooks his chin over his shoulder, pulling Izuku close as he searches for threats. Katsuki leans forward, taking Izuku with him as he stands, arms wrapped around him and hands on his ass. His legs cling to Katsuki's waist as the alpha moves. Every step makes him shudder as it pulls on the knot between them.
“Daddy, what are you doing!?”
Izuku comes while Katsuki walks to the stall he’d changed in and gathers the clothes Izuku wore here. Feels on the verge of a second by the time Katsuki’s sat back down on the couch.
He’s not the only one though. He knows Katsuki’s still coming, the twitches of Katsuki's dick that should have been slowing down by now still coming rhythmically every now and then. He knows what that means.
He tries once more to slide off Katsuki’s cock, but it’s still just as stuck as before. Hasn’t deflated in the slightest. It might actually be thicker than before.
Katsuki laughs at him, unconcerned. “I told you not to milk me.” Then he shoves Izuku’s shirt over his head before he can protest that it’s all Katsuki’s fault, not his.
The skirt is a little more of an issue. They work together to pull it down over his head and shoulders, until they can settle it at his waist. Izuku relaxes a little more now that it’s not obvious that they’re tied. They can always send someone out if they come now without it being visible what they’re doing. Katsuki may not care, but Izuku does.
Katsuki arms wrap around him to pull up the zipper for the skirt as Izuku arranges the folds of it around their laps. Only, Katsuki gets the zip about half-way up before it’s resisting.
“No way,” he laughs, until it tapers off into a dark purr. "Oh, darling, you're just perfect aren't you? So good for me. You don't even know."
Izuku makes a sound of confusion. Katsuki just glances at him, before his hands are back behind him. “This is a pretty tight skirt, huh, Deku?”
“Yeah, it was tight this morning.”
Katsuki huffs a laugh again, but his eyes are darker than they were before. “Yeah. I bet it was.”
Now Katsuki mentions it, the fabric strains around his waist where Katsuki’s trying to pull the material either side of the zip closer together. Strange, when it had been mostly fine this morning. It had taken a bit of a fight, but it pulled up eventually. It was just a bit of a form fitting skirt. It’s one of the pieces Katsuki gave him, which means it should be tailored to fit him perfectly. But the material is tight and doesn't have much give.
Izuku jolts as Katsuki forces the zip up a little higher. He’s too big for the skirt, and it’s pretty obvious why.
Katsuki’s dick twitches, signalling what Izuku is sure is more cum. Izuku puts a hand on his taut, overfull stomach.
“Two knots,” he says with a tone of accusation.
Katsuki flips the skirt up so he can feel around where they’re connected. His fingers come away dripping with Izuku’s slick. “... Five,” he corrects, and then sticks his fingers in his mouth, groaning around them.
“Two,” Izuku says, ignoring him because he's a tiny little bit preoccupied here to be distracted by how nasty Katsuki can be. “This morning and now.”
Fingers popping out of his mouth with a blissful sigh, Katsuki sits back on the sofa like a king, spreading his legs and forcing Izuku’s either side of him to part, showing off where they’re connected to his greedy eyes. His wandering hands. “Five,” Katsuki disagrees again, voice like tar. Wet fingers rub his clit lazily.
Izuku’s eyes widen, even as his hips jerk the tiniest amount. “While I was sleeping? Three times?”
Katsuki grunts an acknowledgement. “Once last night, then I woke up with you still on my cock and it was just too perfect to stop… And then this morning you were flushed and dripping with me and I couldn’t help myself. Missed you so much these last few weeks, baby. You were gone so long - why didn’t you come over, huh? Could’ve studied at home, I would’ve fed you, fucked you, and made sure you slept. Started to think you might try and leave me again, it drove me insane. You didn't even smell like me anymore, but you were slicking so prettily for me, just like right now. So soft and relaxed in your sleep, it just slipped in easy. You’re filled with me... You’re mine.”
Fuck, Katsuki had filled him. How he'd done it that many times without Izuku waking up, he didn't know. He'd barely been sleeping over the last few stressful, weeks, but surely he should have still woken up while Katsuki fucked him?
Izuku hates that he finds it hot.
He breathes in, sucking in his tummy with all his core strength as he gets his own hands on his skirt zip and forces it the final couple of inches.
He forgets about the cock inside him.
The next second, he’s on his back, legs akimbo as Katsuki forces him down. “What did I say about milking me, baby? I’m generous, but not so generous I won’t fuck you if you keep baiting me like this, knot-stuck or not. We can make it six if you want it that bad.”
Katsuki doesn’t send away the attendant when he comes knocking some pleasurable eternity later, apologising for the delay. Apparently the necklace was hard to find.
Lazily and in a much better mood than earlier, Katsuki waves his hand in a motion to set the necklace on the side table. “It’s fine. We’ll take them home with us."
"Very well, sir," the attendant agrees, head ducked in respect. He avoids Katsuki's eye, and won't even look anywhere near Izuku where he's sat on Katsuki's lap. "We have the other clothing and lingerie lines to go through as you requested." This was news to Izuku, he thought they were just here for the one dress. And what the fuck – did he just say lingerie? "Would you like your omega to demonstrate the clothes as planned or we can have the models come out to present them if he's… indisposed."
Katsuki hummed in thought, and they were so close that the deep sound resonated through Izuku's entire body. Izuku had to grit his teeth to hold in the whine it elicited.
There was absolutely no way he could stand up and try on more clothes. None.
"Bring out the models, we need to select the rest of his wardrobe. Isn’t that right, baby?” Katsuki eventually said, evidentially deciding to be nice.
Sat in his lap, legs forced cruelly together despite the thick girth and even thicker knot throbbing inside him, Izuku nods dazedly. He only half-hears Katsuki words, head leaning back on Katsuki shoulder as he tries not to make it obvious how he’s holding in his pants and mewls. Every time he tries to open his legs to relieve the pressure on his cunt or get some friction on his clit, just a little, Katsuki’s hands clamp on them, forcing them closed.
He’d been twisted around on Katsuki’s knot only minutes before, orgasm washing over him loudly as he found himself on Katsuki’s lap, fingers on his clit, seconds before the attendants walked back in.
He’s too dazed to argue as Katsuki browses through the selections. His previous protests quieten as he floats. Katsuki strokes his thighs when he finds something he likes, his mouth close to his ears as he whispers about how pretty Izuku would look in some, how ravishing in others. How much Katsuki would like to see him in some, just for him. No one else. How he’d rip it off before he fucked him hard, or pull it up and sink in for a quickie when they inevitably slip off at the next party. Won't Izuku make him so happy and say yes?
Izuku makes vague noises each time, too spent and distracted by his overfull tummy and the throbbing of Katsuki’s cock every time he comes more. He works over the cock inside him, feeling it deep in his guts as it pulses and he pulses around it in turn. Katsuki’s little grunts his whole world as the pressure increases. It feels like he's being moulded for Katsuki's pleasure.
Katsuki hums behind him, deep and sated. Pleased each time Izuku lets him pick. Even as the selection gets more and more out of Izuku’s normal comfort zone, the pieces that Katsuki had always wanted him to wear but Izuku had deemed too expensive, sexy or ostentatious for himself. Katsuki says yes to them all.
The bastard planned this.
It gets worse when the lingerie line comes out.
Models come prancing out in all manner of bralettes and panties.
There's a theme in the panties. Thongs and assless panties seem to dominate. Scraps of materials that were easy to slip aside if someone wanted easy access. They're the type of underwear Katsuki most often makes Izuku wear.
The thigh highs are another staple. Izuku wouldn't be surprised if Katsuki had designed this entire line and was showing it off to Izuku on purpose. Katsuki was a little obsessed with Izuku's thighs. He likes putting him in garters and suspenders and making him wander around the house with only them on for Katsuki's viewing pleasure. Liked pulling them taunt and letting go so they slapped against the freckled skin of Izuku's generous thighs. Liked getting his hands and mouth on them the most.
Even Izuku finds himself present enough to suck in a breath, his gaze arrested by all the soft skin, thick thighs and asses all enveloped by lacy straps and satin soft material that doesn't hide anything, only accentuates.
His wonderment doesn't last for long. Katsuki thickens just slightly within him, his scent going back deeper with interest and Izuku finds himself enraged that Katsuki could be looking at these other people with desire when he already has the perfect omega – Katsuki has said so – right here milking his knot.
He clenches down hard, aiming to force the alphas attention back where it should be – on Izuku – but Katsuki's own scent has changed to enraged in a blink of an eye.
Burning hands clamp back down on Izuku's hips and – Izuku truly hadn't thought it was possible – Katsuki somehow manages to force Izuku even further down on his knot, taking up all the space within him until he swore it was like his dick was knocking directly against his cervix in threat.
"Stop looking at them like that, omega," Katsuki growled in his ear, all alpha possessiveness and selfishness. Seeing threats where there were none and wanting his chosen omegas attention all for himself. Alphas liked it best when their omegas couldn't think past the knot in their cunt; when they were content to let their alpha choose everything for them.
Or maybe that was just Katsuki.
With a fierce look and sharp hand gesture from Katsuki to the attendant, the models all quickly leave the room. Their eyes snag jealously on Izuku in Katsuki's lap, eyeing his skirt and what they all know is under it, and Izuku meets all their gazes with a triumphant, superior look.
He's mine.
"I said stop looking at them," Katsuki near whines – if a whine could sound like a threat.
Stupid alphas. There was only one way to calm Katsuki when he got like this; Izuku squeezes Katsuki's knot and it obligingly gives him an extra strong spurt instead of the slow and steady pumping it had been doing, one so strong it may have been another orgasm from the way Katsuki rocks his hips and wraps himself around Izuku as he shudders, keening into his hair. It's too much on top of what was already in Izuku, but it effectively drains Katsuki's rage. It's almost worth it, despite the way it throws him right back into that fuzzy headspace.
It takes a few minutes for anyone to brave coming back in.
Last out are some suits for Katsuki to pick for himself, and once he’d made his choices he sends them away. One suit left behind for him to wear once he’s prised Izuku off his cock.
After all, the one he’s currently wearing is ruined with slick and cum.
Eventually, Katsuki’s knot goes down. He forces Izuku to clench tight as he stands on coltish legs. The plug slides in, butter soft. Katsuki pulls it out for just a second, just to see the sheen on it and Izuku’s lower-lips as they’re coated in his cum.
The plug isn’t quite enough anymore. Izuku cunt is swollen and throbbing, but he’s been spread too loose and wet by Katsuki’s knot to keep it inside, and it quickly becomes a problem. Slick and cum making trails down his thighs as Izuku desperately tries to suck it deep but can’t.
Still, Katsuki forces the plug back in. It just half-slides out, Izuku’s face scrunching in concentration.
“You can do it, baby,” Katsuki says, transfixed. "Squeeze tight, just like you were around me."
Izuku's dazed and kind of out of it in the aftermath, but even he knows that's just not going to work. “Mmm, can’t we go clean up and take some cum out? There’s a bathroom down the hall.”
“Don’t you want to be my good boy and keep all my cum nice and warm inside you? I’ve given you such a nice gift, you should keep it safe.”
“It's too much. It aches,” Izuku whines. Not sure if he’s talking about his cunt or tummy. "Daddy, please." A part of him wants to stamp his foot and demand that Katsuki take care of him.
He thinks maybe Katsuki catches on to that because his eyes go all stormy and disapproving.
“You don’t like my gift?” Katsuki says, a hint of disapproval in his tone that makes Izuku’s breath hitch. “That’s very ungrateful of you, Deku. I’ve told you before: I decide what’s too much. Your job is just to accept whatever I give you and – what are you meant to do when I give you a present?”
Izuku's forces down a sob, or maybe a full on tantrum. He thinks he could go either way right now. “Say thank you.”
“So what should you be saying right now instead of moaning, baby?”
He hesitates. This isn't fair.
Katsuki's eyes narrow, all dangerous and daring him to act out. "Baby, be good."
Izuku knows what lies in store for him if he refuses. Knows that this plug can vibrate and that Katsuki will force him through the rest of this trip still.
Knows what Katsuki's voice sounds like as he counts to ten.
“Thank you, daddy.”
Katsuki pets his flushed cheeks, any trace of disapproval melting into warmth. “You’re welcome, darling. Maybe I should get you a different plug in the future,” he says, almost to himself. “Not too big, I don’t want to ruin your pretty hole, but maybe a plug with a knot.” Izuku knows he won’t do it, even now Katsuki looks annoyed at even the thought of something else knotting Izuku’s cunt. Katsuki’s always been resistant to something other than him filling Izuku and bringing him pleasure, even if it’s just a toy. It's why this one's so small in the first place. “Or maybe a belt,” Katsuki mumbles, nodding to himself. “One that will keep it in for you.”
Izuku hopes he forgets, but he’s got a feeling it’s in vain. Katsuki is enjoying this too much.
"Actually, I've got a better idea. Since you’ve been such a good boy today and let me make you so pretty-” his hands press feather light to Izuku’s stomach and settle there possessively- “I’ll give you a reward, as incentive to keep behaving.”
“...What reward?” Izuku dares to ask.
“You’ll see. For now–” Katsuki once again pushes the plug fully in where it had half-freed itself, sliding Izuku’s wet and clinging underwear where they had been pushed to the side to cover it and hold it in place. “That will have to do. Go lay down on the couch, ass up and presenting for me. I'll be just a minute." Katsuki pushes him towards the sofa as he stands and puts his wet dick back in his trousers. Izuku hasn't even had a chance to clean it, what a waste.
"But daddy–" Izuku tries to protest. If Katsuki tries to fuck him again, Izuku doesn't think he'll be able to take it with his sanity intact.
Katsuki frowns. "Don't ruin this. You were being so good a second ago, and you'll like this reward."
With Katsuki's domineering pheromones burning away his resolve and the way Izuku still feels half-dazed from the last however many knots, Izuku has no choice but to do as he’s told.
Shakily, he lowers himself onto the sofa.
"Good choice, Deku."
Katsuki disappears out the door, leaving it slightly cracked behind him as he addresses the attendants outside. "Go run and get me… hmm, £2000 worth of £50 bills. Yes, from the safe. I want new, pristine ones."
Face down on the sofa, Izuku wonders what the fuck Katsuki is thinking. Is the money the reward?
It can’t be so simple.
Izuki keeps his cunt clenched shut around the plug as much as possible. Still, he feels a trickle of cum slowly trekking down his thighs in thick rivulets that he doesn’t dare to try and wipe away. He knows Katsuki won’t be happy with the loss, so Izuku tilts his hips in a more extreme presenting position, hoping to get gravity on his side and appease Katsuki with the sight when he returns.
It’s the least he can do for £2000.
Katsuki’s return is announced with a click of the door shutting and the feeling of fingers spreading his ass cheeks.
"Tsk, you spilled some, even with the plug. I guess it can't be helped with this gape I've fucked into you. Six knots is kind of a lot." Izuku barely manages to hold in the disbelieving chuckle. Yeah no shit six knots is a lot, not to mention Katsuki doing everything he could to lengthen the knots while they were already in him. How much cum does Katsuki think omegas can take? "It's a good thing I've thought of a countermeasure, isn't it, baby?"
Izuku would've replied, but Katsuki uses that moment to pull the plug from his pussy in one swift movement and he keens with the loss instead.
Katsuki pushes the escaping rivulets of cum up his thighs and back into his creamy pussy with a disgruntled noise. "Shh, I'll give it back in a moment. Just clench for now."
There’s a rustling sound for a few minutes, while Izuku steadily heats back up as he becomes overwhelmingly hyper aware of the flutter of his throbbing pussy, and how much effort he has to expend to keep it closed.
With a noise of triumph, Katsuki slides the plug back in, but it feels … different.
Almost like it has a very sudden, tube-like knot. Just as plasticky as the shaft, but weird and more pliable.
"Wh-what?" Izuku wonders.
Katsuki doesn’t reply, still pushing until Izuku's stretched out cunt grudgingly swallows the thickened knot of the dildo, naturally pulling it deeper to plug his cunt and closing behind it, keeping the knot and cum safe inside. Katsuki will have to finger it out later, as he likes to do.
The plug no longer moves, secured inside as Izuku naturally starts to work over the dense thickness of the fake knot.
Katsuki groans, hips pushing his half hard cock against Izuku's ass. "I told you I'd reward you if you kept it all in," he says, a dark purr to his voice. "How does it feel to be plugged up with £2000?"
"No-o, you didn't," Izuku denies, even though he knows that Katsuki absolutely did.
"Better clench hard around that cumful, Deku, it's worth quite a lot, after all."
"How?"
"I just wrapped it tight around the shaft. Plastic banknotes are actually quite useful, huh? Now come on and stand up for me. Let's see if your cunt is gonna demand more money to do its job." Katsuki snorts at his own joke.
Fucking alphas.
Katsuki literally just bought over Izuku's cunt.
It shouldn't make him wetter, but it does.
Katsuki wipes at the remnants of cum on his thighs with some tissues, but seems satisfied that no more is escaping and the money knot is working. Izuku just chokes as gravity once again asserts itself on his new addition. Just because Katsuki has found a solution for his problem, doesn't mean Izuku has. It's too much cum, and now he definitely won't be able to remove any before Katsuki wants him to.
"You're so messy, baby. It's good that I'm getting you new clothes.”
Izuku whines through it all, a hand on his stomach as he wordlessly begs Katsuki to make it better. Katsuki just unzips his skirt, the zip almost flying down, enough to stop constricting Izuku’s stomach quite so much.
"I've got you a new outfit to wear out, seeing as this one is a bit messy. It's going to show off your curves so nicely."
Mindless, Izuku lets Katsuki dress him in a new, more forgiving, skirt and a top whose hemline stops surprisingly quickly.
It's a crop top. Of course it is. Bright orange and eye-catching with BAKUGO stamped across it in thick block capitals. Katsuki is not the king of subtly.
Izuku glances in the mirror and reddens at how obvious the bump of his tummy is.
“The skirt is from our maternity line. Comfy, right?” Katsuki grins and swats him on the butt to get him moving. The hand lingers, clinging to his arse before moving to his hip as Izuku wobbles along in his heels to the exit.
“C’mon. You can wear my jacket if you’re that self-conscious. We're going home. I didn't get to see you model all that lingerie I just bought you, and that just won't do… I wonder if the garter belts will still fit. Maybe we should go look at the maternity line quickly and see what they have. It's just outside.”
Under Katsuki's arm, Izuku rolls his eyes. He’s not convinced by Katsuki's act at all. Even less so when he sees indications of a hasty stock reorganisation in missed signs indicating that the section outside the halls to the private changing rooms is meant to be the sports section.
He’s forced to cling to Katsuki as they leave the changing rooms, unable to hold himself steady. Katsuki acts like he doesn’t love it, even as his arm wraps around his side to hold him tight, hands occasionally lingering over his stomach whenever someone looks at Izuku slightly too long.
Still, it isn't as if Izuku doesn't make a point of rubbing his rounded tummy as they pass the omega attendants waiting just outside, eager to bump into Katsuki or run to get his every whim. They eye Izuku with burning jealousy, even more so when Katsuki doesn't even spare them a glance, the alpha more preoccupied with moaning into Izuku's ear with his theories about how many knots Izuku could take before he started spilling around Katsuki, even when his knot was at the fullest. How fertile and perfect he looks, plugged fat with Katsuki's come.
If this is him normally, Izuku dreads what Katsuki will be like during his rut.
The fact that these wonderings get filthier and more deranged the longer they linger in the maternity section does not go unnoticed by Izuku.
Maybe he's the silly one for ever thinking Katsuki would stray.
He does pick up some of the maternity clothes in the end. If Katsuki's rut comes as quickly as Izuku thinks it is going to, then he's going to need it. He doesn't want kids for a while, but he wants to keep his alpha satisfied in the meantime.
He is paying him so well for it, after all.