Work Text:
There’s something in his cave. Katsuki flicks an ear lazily toward the sound but doesn’t move his head yet. His nest is soft and warm still, but there’s a chill to the air, like maybe some of the rocks shifted while he slept and a new draft has formed. Winter obviously still has its grip on the forest, and Katsuki isn’t interested in getting up to greet it. Some snow or leaves probably drifted into the cave and their movement across stone is what woke him.
But the sound comes again, just as Katsuki is starting to drift off.
This time he’s actually able to make some sense of it: the shuffling of hooves on rock. With a low growl he finally lifts his head, blinking away months of sleep from his eyes. His cave looks the same as ever, quiet and dark, but now that he’s paying attention he can clearly pick up the breathing of someone else.
The cave has a natural bend in it that prevents Katsuki from having a direct line of sight of the entrance. He could just scare whoever is out there away with a roar and be done with this entire situation. Hooves mean that it’s a prey animal, nobody who would be interested in trying to fight him for the cave. But there’s a scent in the air, something soft and minty that’s piqued his interest.
Decision made, Katsuki stretches leisurely and pulls himself out of his nest. His body immediately protests, a faint shiver working through him from the chill in the air. He’s lost a lot of weight already, he notices, so spring must not be long coming. The snow and cold are always at their worst just before spring. He hates it.
His padded feet are silent on the stone as he moves through the cave, red eyes perfectly suited for the darkness. There are faint shuffling noises coming from where he keeps his stores of food.
When he rounds the bend he’s unsurprised to find a young stag rifling through his stores, popping dried nuts and berries into his mouth as he goes. He’s shed his antlers and is dangerously lean, the shape of his ribs visible under fair, freckled skin. Must be close to starving if he’s risking a bear’s cave just to find a meal. Bad luck that he woke Katsuki in the process.
Great luck for Katsuki though. Even as thin as he is, the stag is kinda cute, at least from behind, and he smells amazing.
Katsuki manages to get a few feet away, close enough to pick up the stag’s near-constant shivering, before he’s noticed. The stag jumps and whirls around, ears straight up at attention and breathing shaky. His face is round and even more freckled than his body, these big green eyes staring back at Katsuki with obvious fear.
“I-I’m sorry!” he stammers out, trying to back away, except there’s only rock behind him. He bumps into the cave wall with a squeak and realizes with a flush and a hunch of his shoulders that he’s trapped. “I was j-just looking for a place to wait out the storm, a-and I smelled the food and thought—”
“Thought you’d just help yourself?” Katsuki finishes for him, voice coming out low and ragged from disuse. The stag must think he’s growling because he flinches back.
“I-I-I—”
“Relax, fawn, you’re too skinny to eat and not worth the effort of killing anyway,” Katsuki says, waving an errant hand. The stag’s eyes follow the movement, probably tracking Katsuki’s claws.
“O-oh,” the stag says, slumping a little. “Thanks, I think.” His gaze finally moves away from Katsuki to the cave entrance and the winter storm billowing just beyond. If Katsuki turns his head he can see the flurry of snow and ice, and knows that as skinny as the stag is, even with some of Katsuki’s stores in his belly, he wouldn’t survive the night. Not alone.
“You can stay,” Katsuki says, and the stag whips around to face him again, eyes still just as big and green as ever.
“What?”
“I said you could stay.” An idea forms rapidly in Katsuki’s mind, and he’s speaking again before he can think it through. “You’ll die huddling with the rocks for warmth though, so come here. Unless you’d rather freeze to death?”
The stag shifts his weight uncomfortably, but he’s still shivering, and even the added shelter of the cave won’t be enough to keep him warm through the storm. “N-no,” he says, and takes a tentative step forward.
Katsuki rolls his eyes. “I’m not going to eat you. Get over here, it’s fucking cold and I want to go back to bed.”
The stag moves quicker after that, as if enticed by the thought of Katsuki’s nest. Which he should be. Katsuki spent a lot of fucking time getting it just right, and not just anybody gets to sleep in it. Up until today, in fact, nobody but Katsuki himself has ever received the pleasure.
When the stag is close enough, Katsuki grabs him by the elbow to haul him along to the back of the cave. His skin is freezing cold and he jumps as if burned, but doesn’t shy away. Katsuki rumbles his approval as he tugs the stag down into his nest with him, every part of his body sighing in relief at being back in its warmth and comfort. It still holds his body heat and feels almost sinfully good against his chilled skin and fur. It must be even better for the stag, who lays down stiffly but then almost immediately melts back into Katsuki, like he simply can’t help himself. He gives a little wriggle and a sigh of appreciation.
“See? Much better than rocks,” Katsuki mumbles, tugging the stag closer. The nest isn’t exactly built for two, but with both of them on their sides, Katsuki can tuck the deer up against his front. Katsuki’s so much bigger that the stag is almost underneath him, but he doesn’t seem to mind the closeness. Probably too cold to care.
“Much,” the stag answers. Then he wriggles again. “I’m Izuku, by the way. Um. Why are you doing this?”
“Katsuki. And because you’re cute and smell good,” Katsuki responds, leaning down to run his nose along the back of Izuku’s neck. Mint and green growing things and like the air just before rain. Not like prey at all, but rather something so tantalizing Katsuki wants to lick and suck the taste from the stag’s skin.
“Oh,” Izuku says, wriggling again. “That’s good, I guess.”
“Why’d you stumble into a bear’s cave mid-winter?” Katsuki returns. He’s still rubbing his nose gently up and down the stag’s neck, lips brushing the sensitive skin.
“I… was hoping you wouldn’t wake up?” Izuku tries, voice a little squeaky. Then he mutters something else under his breath, so quick Katsuki nearly misses it.
Katsuki pauses in his movements, breathing softly against skin that’s starting to flush with warmth. “What?”
“I said you also smell good. You know, for a predator.”
That startles a laugh out of Katsuki and, well, his mouth is already open and right there so might as well put his teeth to good use. They find purchase in the back of the stag’s neck, gentle enough not to break skin but firm enough to keep Izuku in place. At first Izuku tenses up, ears flicking straight up in alarm, hands briefly scrabbling at the nest’s edge as if to try and lever himself up and away. But then he relaxes again. All pale skin and freckles and angular form, leaning back into Katsuki and letting the bear take his slight weight.
“Maybe don’t bite the frightened prey animal on the neck if you want him to relax?” he says breathily, although if it’s from laughing or arousal Katsuki isn’t quite sure.
Very reluctantly Katsuki releases his mouthful, giving the slender neck a long, purposeful lick. “I already told you I wasn’t planning on eating you,” he says when he’s done. “Fucking chill.”
“You try having sharp teeth on your throat and see how relaxing it is,” Izuku challenges. His hand has somehow found Katsuki’s hip and while it isn’t doing anything, Katsuki finds himself liking the weight of it anyhow.
Nipping at one bony shoulder, Katsuki murmurs, “Shut up. If you’re too annoying I might change my mind and eat you after all.”
Izuku snorts. “No you won’t. You sound half asleep already.”
“It’s mid-winter. I’m supposed to be asleep right now, and I would be if it weren’t for stupid, pretty deer turning up in places they’re not supposed to be,” Katsuki growls.
The hand on his hip squeezes. “You think I’m pretty?” Izuku asks, laughing.
Instead of replying to such a stupid question, Katsuki goes back to nuzzling the stag’s neck, licking and scraping his teeth against it and reveling in the way the thin body in his arms jerks with the sensation.
They’re lazy movements on Katsuki’s part, his eyes half-closed, breathing slow. Izuku hadn’t been wrong; Katsuki is starting to fall back asleep, his body more than ready to hibernate again, slowing his world down until it barely moves at all. Just until it’s warmer out. But he fights against it, too interested in the prey animal in his nest to give himself over to slumber entirely.
He doesn’t realize he’s hard and that he’s started to lazily roll his hips against the stag until Izuku gasps and glances back at him. At this angle all Katsuki catches is a sweep of dark eyelashes and too big, too green eyes, but they wake him up enough to realize what he’s doing. He doesn’t stop though. Why should he? Instead, he just repositions himself until his dick finds the sweet space between Izuku’s inner thighs, velvety and warm and perfect. He presses in, the pressure just right when Izuku squeezes his thighs together.
“Oh,” the stag murmurs, and on the next roll of his hips Katsuki feels fingertips against his cockhead where it pokes through on the other side of Izuku’s thighs. Light and inquisitive.
Katsuki snorts, rubbing his face against the stag’s throat again. “Yes, I think you’re pretty.” He sweeps a hand down the stag’s flank to where Izuku is already getting hard. “Now be quiet. I want to go back to sleep after this.”
Despite Katsuki’s demand, Izuku’s mouth falls open on a moan, soft and sweet. “I’m not the one keeping you awake,” the stag says, arching his hips into the movement of Katsuki’s hand. “You’re the one who dragged me here and started touching me.”
“Would you rather I have eaten you?” Katsuki asks, all snark and rumble. It gets him a little laugh, as soft and sweet as the moan had been.
“No. Keep going.”
Warmth and pleasure settle over them comfortably, the nest growing humid with their breaths. The space between Izuku’s thighs is slick and hot and his throat under Katsuki’s teeth is flushed red. It’s almost dreamlike, this wash of sensation and scent, smooth skin and the smell of mint, soft skin under Katsuki’s tongue. He rolls his hips and moves his hand over Izuku’s cock in time with them, languid and unhurried despite his protestations about wanting to sleep.
“Mmm, you can help yourself to as much of my stores as you like if you keep my nest warm like this all winter,” he finds himself saying. He can’t imagine a better way to settle into hibernation than like this, with Izuku in his arms, keeping him warm as the air chills.
Izuku stiffens for a moment, as if surprised, but then softens. “Really?”
Katsuki nods against the stag’s shoulder, squeezing Izuku’s cock to earn himself another of those moans.
“Okay,” Izuku breathes, then, “I’m gonna come.” And he does, warm and wet and all over Katsuki’s hand, and Katsuki isn’t even annoyed by it. Just tips over into his own orgasm right there in that tight little space between Izuku’s thighs, dirtying them both.
Almost immediately Katsuki’s body attempts to drag him under, the rush of pleasure a perfect segway back to sleep. His mind blurs at the edges, muscles loosening until he’s heavy and limp. Distantly he can feel Izuku move against him, can feel delicate fingers against his face.
“Better be here when I wake up,” Katsuki manages, his lips nearly numb in his exhaustion. But he hears a laugh, faintly. Feels a touch against his legs and softening dick that might be an attempt to clean him up, which he distantly appreciates.
“Silly bear, of course I will be.”
And Izuku was.