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Katsuki's home when you get back from work, which is unusual with his current pro hero schedule. What's even more unusual, however, is that he's not in the kitchen or bustling around cleaning, still too worked up from patrol to relax right away, which means he's been home for a while. You watch him with narrowed eyes, eyeing him where he sits on the couch with a smirk on his face.
He has something planned.
Which would make sense, considering it's Christmas eve and he hasn't once mentioned his schedule for the day. That, of course, changes the second you ponder it.
"I'm off tomorrow." Katsuki murmurs, voice low and heavy with something you can't parse.
You raise your eyebrows, glancing at him in your periphery. Taking your time removing your shoes, you don't respond right away. "I'm guessing you have plans."
He just hums, the sneaky bastard. You hear the couch creak as he stands up, making his way towards you with long strides, that smirk growing wider as he grows closer.
"I was thinking we'd start tonight." He purrs. And—oh. You know that tone very well.
After some more research into your 'hobbies,' Katsuki has become very confident in the bedroom, quickly becoming knowledged in things you didn't even know about yourself. It's annoying. You miss the flustered mess he used to be, the nearly virgin pro hero who was barely used to his quirked animal features, much less how to flirt.
Especially considering he does not need any extra help to seduce you.
To prove you right, Katsuki's hand curls around your hip, fingers digging possessively into the flesh there. It sends heat right to your core.
You hum, eyeing him carefully. "You found something new you want to try." It's not a question. You already know it's true. He quickly confirms this, though, with the dark look that suddenly crosses his face, gaze sharpening as it trails down your body.
You don't think you'll ever get used to his confidence.
"Yeah," He says simply, resting one hot palm on your lower back, corralling you towards the bedroom. Despite the fact you've barely taken off your shoes, much less your jacket. "What do you feel like tonight?"
You consider his question carefully. "I'll bottom."
Katsuki pauses for a moment, and you have the pleasure of watching as his chest stutters for a moment, breath catching in his throat at the thought. He likes bottoming, sure, but you're well aware topping is his favourite, even if he doesn't say it out loud. He licks his lips, swallows thickly, and nods, opening the door for you.
You take back your earlier musings. You can still somewhat get him that same flustered mess.
You're pulled into a kiss barely a few steps into the bedroom, wet tongue probing at the seal of your lips. Katsuki, as usual, tastes like spice as he licks into your mouth, spreading that taste wherever he can reach. He probably ate when he first got home, likely those spicy chips he likes so much. You don't like them as much as he does, but you can appreciate them now as he moans against your lips. His hands settle on your waist once more, squeezing lightly in that way he likes to do.
When you pull back to catch your breath, his eyes are completely dilated. You only have a moment to miss the wolfish shape they had when you first met him before he's tightening his grip around you and throwing you over his shoulder.
"K-Katsuki!" You yelp, caught off guard. He cackles, cracks his palm down on your ass, and throws you onto the mattress.
Katsuki crawls after you, grinning. "What?" He asks innocently, though his expression is mischievous. You glare up at him, playful and lacking heat, as he hovers over you, using his larger mass to press you into the sheets. You can feel his erection through the layers of clothes separating you, his cock already straining against the front of his sweats.
You don't bother with that right now though.
Instead, you wrap your arms over his shoulders, chuffing quietly as you pull him down into another kiss. It's nice to just be close to him. The kiss starts chaste, this time. A gentle press of lips, again and again, until he's humming against your skin. Of course, as does any intimacy with Katsuki, it quickly turns heated. He presses against you insistently, growling low in his throat in that same way he usually does—different from when he'd been under the effects of the quirk, but no less amusing.
You laugh under your breath, a low sound that has him pulling back with a frown. "What." He says, sounding more like a demand than a question. Shaking your head, you grin up at him.
"Have you always growled like that, or was it the quirk?"
Katsuki just scowls down at you even as his face flushes bright red, a sight that just makes you laugh harder. Instead of saying anything, some gentle ribbing or one of his gruff dismissals, he leans down and presses a sloppy kiss against your neck. It draws a sharp gasp from you, hair standing on end as he licks and sucks his way down your neck. You only realize what game he's playing at when he leans up to glance at your face, smirking when he catches sight of your red cheeks.
He's trying to fluster you. And it's working, considering even your ears feel like they're burning, standing straight up with interest.
"What do you have planned?" You murmur suspiciously, eyes quickly narrowing. Katsuki doesn't respond, just continues to grin at you as he reaches to grab something from the side table. He holds it up in front of you, gaging your reaction.
It's a prostate massager. Which, considering your anatomy, wouldn't quite work as intended.
You shoot him a confused look, which just causes him to roll his eyes. "It's for me." Katsuki explains, handing you a pack of lube. "You like being marked, right? I'm gonna cover you."
Holy shit.
Your eyes blow wide, pupils no doubt quickly dilating as you process what he's saying. Glancing once more at the toy in his hands, you swallow thickly, tail beginning to wag at just the thought.
"Yeah," You eventually reply, voice breathy. "Yeah, okay." Fingers fumbling with lube, you take his invitation to prepare him with glee, quickly slicking up your fingers and tugging insistently at the hem of his sweats.
"Fuckin' pushy," Katsuki grumbles. His voice lacks heat, however, and he practically tears off his sweats. He's getting excited now that you're aware of the plan—more than that, you're into it—and the fingers of his scarred hand have already begun twitching in response to his frantic energy. You bring your hand over the swell of his ass the second his sweats have been pulled past his hips.
And immediately pause.
You prod against the silicone there, caught off guard by the lack of warm skin against your fingers. Fuck, he'd prepared himself ahead of time. The lube wasn't an invitation to stretch him out, you're realizing, it's another gift. What a sap, collecting knowledge of what you like and putting it all together for you. You'll have to reward him well.
"You really thought through this, huh?" You murmur, using your dry hand to gently grasp the base of the plug sitting in his hole. "Prepared all my favourite things for me. Now I'm wondering what else you have hidden."
"I don't know what you're talking about."
"Right, then what's this?" You press on the silicone in his ass.
Katsuki hums, the sound trailing off into a soft moan as you slowly pull at the plug. You rock it in and out of his hole for a few moments, teasing him with a low growl. He shudders when you finally pull it free, shoulders practically shaking as trembles run up and down his spine, a low, choked noise escaping him. You have a front row seat to the way his eyes roll back in his head, teeth digging firmly into his bottom lip as he fights back any noises.
It's cute how sensitive he is.
Before you continue, you pull off your own clothes, tugging at his shirt until he gets the memo to follow along. Somehow, by the time you've stripped yourself bare, he's still slowly pulling up his usual black tank, staring at you with sharp eyes. Somehow, he's only managed to free one shoulder.
"If you're mad I left you empty, hurry up and get over here so I can continue."
Katsuki pouts. "Tryin' to be sexy."
"Mh," You pull him into another kiss, pulling away after a short moment. "You'll be sexy cumming all over me." When you say it, you can't help but think it sounds corny but it must work for Katsuki.
He groans, pulling you back into his chest once more. "Yeah," Katsuki agrees easily, giving himself a slow, tight pump of his cock.
You track the careful motion, watching as a bead of pre cum forms on the tip of his cock, the sight incredibly tempting. You, however, have a different goal in mind. Shuffling under him once more—certainly not so when he cums it'll all land on your abdomen—you reach slick fingers around to his backside once more. The lube had to be reapplied, having been wiped off in your haste to undress, but you don't mind the loss. Not when he's clenching around you the second you push two fingers in, practically sucking you inside.
Better than the tight, wet heat around your fingers is the sound that's practically punched out of Katsuki's chest, a strangled moan falling from his lips. His eyes flutter shut for a moment, eyebrows pinching together as he continues to fuck into his fist. Focusing on the way his walls flutter invitingly around your fingers, you miss the way he glances down, coming to some sort of decision.
Before you can react, Katsuki surges down to latch his mouth onto your throat once more, a guttural groan vibrating against your skin. "Ah, fuck," He mumbles, teeth pressing into your collarbone. "Gotta finger you open before I cum."
"Wanna get inside me first, huh?" You flex your hips up, the head of his cock bumping against your T-dick, which is engorged with arousal. You can feel your pulse in your erection, throbbing in time with the fluttering of your hole. Katsuki nods, hair brushing against your chin. You can feel him trail the fingers of his free hand along your abdomen, tracing a line of fire down your skin. It just makes you throb harder, hips flexing as he teases you.
He slips a finger inside you just when you're considering landing a smack on his ass for making you wait. Instead of a complaint, a groan falls from your lips, fingers instinctively matching his rhythm as he pumps his finger inside you, slowly opening you up for a second.
"Cutting it close?" Katsuki grins down at you. His face and ears are flushed, nearly matching the bright red of his irises. You're surprised there's still enough blood for his erection.
Frowning up at him, you crook your fingers into his prostate, making sure to press against that spot until he's shuddering before you bother responding. "Teasing me like that… you're lucky I like your plan too much to change it up."
He just laughs, breathy and surprisingly high-pitched. He's on the edge already. He seems to recognize this too, as he begins to really stretch you out in earnest, his fingers squelching as he forces another one in. You match him with another one of your fingers, scissoring him open at the same time—albeit lazier than he is; the prostate massager isn't as wide as his cock is.
"Hn, fuck." You groan, thighs twitching around his hips. "Hurry up."
Katsuki huffs, his breath washing over your face. "Yeah. Get the toy ready."
Both of you are barely speaking, really. Just groaning out slurred syllables against each other's breaths, too caught up in the rush of heat and skin-on-skin to properly enunciate. It's a little embarrassing, so you ignore the way you sound and focus on his voice, letting it wash over you. He always sounds so good.
He'll be a mess by the end of the night. You'll have plenty of noise from him to savour.
As Katsuki is lining himself up with your hole—fuck, you're so wet right now—you take your time lubing up the silicone toy, taking note of a button on the case. You don't have much time to think about that, though, because he's pressing inside you barely a second later.
A low whine escapes you before you can stop it. "Big." Is the only word you can manage right then. Katsuki is just as overwhelmed, eyebrows pinching together and jaw dropping as he slowly bottoms out inside you. He wraps two large hands around your waist, squeezing gently, and pauses. When you finally manage to work past the overwhelming stretch, you glance up at him, huffing out a low laugh.
"Are you ready for the toy," You catch his attention, waving said toy in front of his face. "Or do you need a moment?"
Katsuki moans, swallows the saliva threatening to drip down his chin, and nods. "'S not like this will be the last one."
And, oh, does that send a lovely shiver down your spine. Heat quickly begins to pool in your lower abdomen, muscles winding tight. You don't hesitate, bringing the toy around to his backside and pressing it inside him. Katsuki releases a long, drawn out moan, eyes fluttering as the toy settles within him. His hips jerk forward in little aborted movements, thighs practically trembling with the strength it takes to hold still while you play with his ass.
"What a good boy."
He jolts at the praise. "I should be saying that to you." Katsuki's voice is wrecked, shaky and high-pitched with overwhelm. He's never done this before, fucking into you with a toy in his ass—fucking into anything with a something in him at the same time.
Really, it's a miracle he still hasn't cum.
Though that's about to change soon. You readjust you grip on the base of the toy, curling your fingers around the handle and pushing. Katsuki cries out, eyes blowing wide and hips twitching, pushing him forward where he's still seated inside you. The chain of events forces a curse from you, eyes rolling back when the spongy head of his dick hits that sweet spot inside you.
What follows is a loop that neither of you can quit. You press the toy against him, Katsuki's hips jerk forward, and the ensuing pleasure that runs through your limbs makes your hand twitch, forcing the toy inside him once more.
You'd be mortified at the sounds coming out of you if you were more aware, and you don't doubt Katsuki would feel the same. Both of you are panting and moaning, breathing out whines into the space between you as you grind against each other over and over again. There's something about today that has you feeling it more than usual—probably the anticipation for his earlier promise—and your core is tightening with an oncoming orgasm earlier than usual, with less stimulation than usual.
Katsuki is in the same boat, face pinching then relaxing in that same pattern you've grown used to, moans turning desperate and choked. His cock twitches so hard you can feel it, hips stuttering against your own, and then he's cumming. He groans, loud and relived, and the feeling of him thrusting desperately against you—marking you—has your orgasm rushing over you as well.
"Shit!" He shudders against you, hands clenching desperately at your hips and thighs, like he's not quite sure where to put them right now.
You take no mercy on him. The second he's done shivering his way through his orgasm, you fumble around for that little button you'd seen earlier. You know you've found it when he suddenly jolts forward, half-hard cock slipping out of you as he writhes. The noise that he makes is downright sinful, one you'd nearly call a squeal if it weren't so breathy and stilted.
"Not done yet, right?"
Katsuki glares at you, though the effect is lessened by the overstimulated tears forming in his eyes. "Asshole."
"I want the rest on me, not in me. Got it?" You don't know what expression you make then, but Katsuki visibly shudders once more. He slides further up on the bed, stradling your abdomen as he gets comfortable with his cock aimed right at your face. You can't help the way you lick your lips at the sight, mouth suddenly growing dry.
His hand wraps around his erection, stroking slowly and teasingly, working himself back to full hardness. It doesn't take long, especially not with the toy still vibrating away in his ass. With the way he's settled on you, you can feel those vibrations deep iny your tummy, sending butterflies through you as you watch him, eyes wide. Katsuki's thighs twitch the whole time, squeezing and tensing around you, which just presses that toy harder against your lower abdomen.
"'M more sensitive than I thought." Katsuki confesses, breathless.
You laugh, noticing how it jostles Katsuki and the toy inside him. "I can tell." You glance him up and down, teeth digging into your lip. He whines, rolling his hips into his hand.
This time, you sit and watch, heart pounding in your chest as he whines and moans, abs rolling with every flex of his hips. It doesn't take long for him to work himself up again, still incredibly sensitive from his first orgasm. When you catch sight of that telltale stutter of his breathing, the unsure flex of his hips, your pupils grow impossibly wider, pulse pounding in your ears.
Your tail is wagging before the first spurt of cum lands on your cheek.
"Fuck, fuck," Katsuki repeats, over and over as he releases all over your face, coating you on both ends. At the thought, your hole clenches once more, squeezing out a dollop of cum onto your sheets.
Fuck. You're gonna smell like him for days. Even if no one but you will be able to notice it.
Finally, Katsuki becomes too sensitive to continue, and he collapses on top of you with a low groan. His hips continue to twitch as the massager continues to vibrate away inside him, garbled whines and moans falling from his lips. You're quick to put him out of his misery, reaching around him and turning the toy off with another click to the button. Then, you slowly work it out of him, taking care to remove it without prodding against his sensitive insides too much.
"Thank you," You murmur against the side of his head, placing a chaste kiss there. He grunts tiredly.
"Next time," Katsuki forces his head up, making eye contact with you. "I'll get one more load on you."
He pulls you into another kiss, slow and deep and you growl against his lips at the thought of next time.