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Warming Up

Summary:

Katsuki is sent on a mission alone in the mountains. He's expected to stay for a week and to tail a group of villains whom the Commission has been keeping an eye on.

Meeting Eijirou and Tetsutetsu under the same mission was not on his itinerary.

Notes:

This was a piece I did for the @ThirdWheelBang on Twitter with NalaYAOI!

@ThirdWheelBang

TSKRBK Art by Nala

Please go check both of them out and show some love to the mods of the event!

(See the end of the work for more notes.)

Work Text:

Fuck winter. Katsuki's teeth chatter uncontrollably and he clenches his jaw to try and stop it. His gloves are wholly soaked in melted snow seeping through the fabric against his palms, which is not a good thing for him. Frozen hands equals no quirk. No quirk equals useless. 

He supposes it is his fault, though. He was unprepared for the horrendous job, waking up late in a dingy ass cabin they assigned him after hearing the group he was following was changing location. He hardly had time to dress appropriately for the shitty weather. Honestly, how can people even like winter? It's trash. 

His boots crunch through the untouched piles of snow he destroys along his trek. His arms are wrapped around his middle, scanning the area to see if he has any sign of where the villains went. 

Shuddering, he reaches in and grabs his communicator. Being up high and lacking cell towers wasn't ideal for a phone, but the Commission provided Katsuki a way to speak to his team back at headquarters. Clicking the button on the side, he opens his mouth, “Dynamight r-requesting my location and a safe z-zone. Over." 

There's a brief moment of static and then a voice responds. "We hear you loud and clear, Dynamight. You’re on the south side of the mountain. What we gather, the villains have gone on the north end." 

"How the f-fuck did they get over the-there so fast?" The bite he tries to add to his tone flies in the wind. He's so cold. "Wh-Whatever. I'm fucking fr-freezing. Please tell me I'm n-near a cabin or something."

"Do you know which way you're facing right now?" Katsuki stares at the communicator perplexed, but the woman on the other end adds to her statement before he can get a word out, "If you go northwest, you’ll find a place to take shelter for a bit until the storm settles. It's near their base but easily masked with the snow. You should be fine until morning unless we need you." 

Thankfully, his communicator has a built-in compass, so he quickly shuffles until his front faces the right direction. He decides responding would waste more of his energy and he begins to stomp through the feet of snow in his way. 

It's about a five-minute walk where he is, but it's like it takes hours. His face is numb, hands twitching and trying to regain feeling when he reaches toward the door and opens it–

His ass lands on the snow, hands perched behind him last second to catch himself. The cold goes unnoticed as he's too busy staring at a familiar face. Two vermillion irises and bright crimson locks blowing in the wind are easily recognizable.

"Wh-What the fuck are you d-doing here?!" 

Two hands grab him by his armpits to hoist him up. "Dude! I'm sorry, we had no idea you'd be showing up!" 

The blond grumbles. "It's whatever, Sh-Shitty Hair," He says, shaking his head at the ice clumped up in his blond strands and shoves Eijirou off so he can stand. “Y' gonna l-let me in?” 

The blush on Eijirou's cheeks is definitely due to embarrassment and not the cold. He cracks the door open of the cabin and ushers Katsuki in. “Yeah. Come on, bro.”

The heat emitting a nearby fireplace brings instant warmth to his bones. The logs crackle and the wind whistles through the windows. A small kitchenette stands on the left when he enters. An L-shaped couch sits facing the fire. Further down, he sees a door slightly ajar. Where he is, he can see the end of the bed, the sheets pushed down and not tidied. Next to the bedroom is another door which could only lead to a bathroom, light coming at the bottom. Eijirou must’ve left it on. 

Katsuki hums, deeming it alright. It'll have to do as a shelter for the evening. And he has his best friend to keep him company. Everything works itself out, he supposes.

“Sorry for reacting like that, by the way. You never know who could be barging in.” Eijirou rubs his neck sheepishly. 

Katsuki understands why. Them as pros could never be too cautious. Katsuki wasn't thinking rationally to observe his surroundings first before trying to enter. He was just freezing his dick off and craved a heated shelter.

“You want cocoa? I made some.” Eijirou offers, gesturing to the carafe of it on the kitchen counter. Katsuki nods hastily, loving the idea of getting a hot beverage in his system after being in fucking Antarctica (an exaggeration, but still). Plus, Eijirou always made the best cocoa. It's the perfect time to have it. 

Katsuki begins to strip his outer layers while Eijirou fills two cups. The gloves stick to his palms at first but eventually detach part of the fabric on his skin he has to peel bit by bit. This is what he gets for having sweat frozen to his palms. 

Lastly, once taking off his beanie, he puts the jacket on the back of the couch and sees two small luggage bags lying on it that could hold essentials like a few pairs of clothing and toiletries for a couple of days. At first, Katsuki thinks both belong to Eijirou but catches sight of a hair product he knows damn well doesn't belong to the redhead in one of the bags.

Whose is it? Did it belong to the cabin owner and just didn't put their stuff away?

“Here, bro. Careful, I don't want you spilling it. I kind of put too much in yours.” Eijirou hands him the mug with both hands since it doesn't have a handle.

The blond tsks, the silent question placed in the back of his mind to ask about later. He takes the cup from the redhead. “I'm c-careful all the time, dumbass.” 

Eijirou snorts and grins, “Sure.” He agrees halfheartedly. “Tell me if it's good?”

Katsuki hides his matching grin under a drink and holds back a delighted moan at the thickness of the liquid. Tiny marshmallows roll down his throat. He licks his lips and hums, “It's good no matter when you make it, Red.” Oh, nice. His stutter seems to have disappeared. He's already doing better out of shitty snow. 

Eijirou smiles and opens his mouth to respond–

"Dude, you won't believe what I found in the bathr– oh!" 

The sound of another man coming around the corner pulls Katsuki's instinct to fight to the forefront of his mind. Forget the fact he has a mug in his hands, he'll go down fucking swinging.

"Tets, you gotta warn a bro when you come out of the shower!" Eijirou shouts more out of amusement than irritation, "You're like a ninja, I swear." 

Tets. As in… Tetsu-fucking- Tetsu?! 

Sure enough, when he turns, he's met with the sight of Tetsutetsu Tetsutetsu, hair dripping water and half naked. Tetsu is unashamedly walking out with only a towel around his waist, barely holding anything to the imagination. Does the man have no shame around his friend? Good god. 

If Katsuki weren't dying of hypothermia (yes, he's exaggerating again; leave him alone), he's sure his body would be reacting in a very unmanly way. 

He places his mug down on the countertop and crosses his arms over his chest, "Who the fuck sent you two? As far as I knew, I was the only one assigned a job." 

Eijirou turns and freezes, snorting and holding back a laugh. His other hand lifts to point at the blond's face. “What?” Katsuki snaps. 

“You got a little…” the redhead moves to point to his face, above his upper lip, “...cocoa.” 

Katsuki burns red and grabs a napkin sitting on the counter to rub his mouth of the remnants. “Fucking shut up! Answer my damn question.” 

Eijirou’s smile twists to a frown as the inquiry registers, confused, "Me and Tets were asked by Fourth Kind to check this place out. Said there was a group of villains keeping their home base near."

Katsuki pauses. That sounds a little too close to his mission’s most recent development. "Hang on. Was there just a change where their base is?" 

"Yeah. About twenty minutes ago, I asked if there were any updates and they told me the group was on the move. Thankfully, we were already stationed nearby, so we didn't need to leave." 

Oh, for God's sake. "Son of a bitch. That's who I'm fucking tailing!" Katsuki can't believe this. Did the commission think he couldn't handle it on his own? He's perfectly capable, fuck you very much. 

Eijirou and Tetsu look astonished. "Bro, we had no idea. We weren't told anything except what to do," Tetsu says honestly, "if we knew you were up here, you'd think we wouldn't go out looking for you, or hell, even messaging you?" 

"First, there's no cell service, so jot that down. Second, you know damn well you would stay inside not to get yourselves caught or become icicles." Katsuki finally pulls his last layer of clothing off (a long sleeve sweater), leaving him in a tank top and a pair of tight-fitting leggings which hold body heat relatively well. "Where's your fucking shower? Please tell me it still has hot water." Surrounded by all the himbo energy will make him lose brain cells if he doesn't get out soon, "I feel like my legs are gone." 

"Down the hall and to the left," Eijirou supplies as an answer, "don't worry about your stuff, man. I'll get you a fresh pair of pajamas and leave them outside the bathroom when you're done."

"Fine. Leave a jacket and some socks there too," The blond glares at Tetsu, "and put some fucking clothes on, asshole! You're going to freeze your ass off!" 

"Bakugou. Steel. I'm good," Tetsu raises his arm and allows his quirk to ripple along his bicep. 

Katsuki scoffs and rushes to the bathroom. This way, he can be apart from the two to calm his heart down. 

 


 

Bundled up in a warm blanket, fuzzy socks, and a fleece jacket belonging to the redhead is the perfect way to end the night. It's dark and the blizzard surrounding them has only gotten worse. 

Running through his game apps he can use without service, he listens to a conversation between the two other heroes sharing the space. 

“Please tell me you can, like, heat your skin if you put it by fire. We could all warm up.”

“Red. I would be a piece of hot metal. I could burn you.”

“Hm. Good point,” A snap of clarity, “Okay, what if we just put a sheet or something so we didn't get hurt?” 

“Unless you plan on getting more logs for a proper fire, I ain't doing it.”

A whine. “Go with me then. It's super cold and your quirk would be perfect to combat it once we got a good fire lit.” 

“Even if I did, which I won't, it would eventually get cold again, dude. That's how metal works. It is hardly insulated and I can't sleep having it activated. You know firsthand.” 

…Huh?

A dejected sigh, “Yeah, yeah. I hear you, man. I can just tell tonight is going to be brutal and I'm trying to think of anything to keep us from getting cold–”

“What do you mean he knows it firsthand?” 

The question slips from Katsuki. He's two milliseconds away in slapping his hand across his mouth, but that would bring more attention and show how he didn't mean to say it. Too late to take it back, he supposes. All he can do is wait for Tetsu to respond. 

Tetsu tilts his head and then a smile crosses his face. “Oh. Me and Ei have shared a bed for two days. There's only one.” 

No shit. It's a cabin meant to house two people (typically two in a relationship since this cabin is very much catered explicitly to such). Of course, there would be one bed. It also explains why it's so fucking big. 

It doesn't explain why two fully grown men wouldn't just negotiate on who took the couch or the bed. As crazy as the bromance between Eijirou and Tetsu may seem, Katsuki never imagined the two would be sleeping together. Considering both are built like brick shithouses, it's impressive the two even fit on the stupid mattress.

He'll take the damn couch. There's not a chance the blond would pass out next to them two. “I'm sleeping here.”

Eijirou looks to Katsuki, “Bro, it's supposed to get to, like, -20 or something. You'll regret it if we don't bunk together.” 

Fuck no,” Katsuki huffs, “We have blankets and I got a shitton of things to wear. I'm not going to wake up stuck between you two. I'll deal.”

“But Kats–”

Katsuki shakes his head and looks back to his phone, silently ending the impromptu conversation. He hears the redhead exhale heavily and pad to the couch armrest to plop down on it. “For the record, we thought we were done according to the commission office, but then they said Tetsu and I needed to investigate further until the group made their final move. If I’d known we'd stay again and you'd be joining us, I would've gone out to collect more logs much earlier to prepare for tonight. Honest.” 

Katsuki remains quiet. Eijirou is attentive to that sort of stuff usually, so it isn't like he's upset at the redhead. There wasn't any way of telling what'd happen one day to the next, especially in their line of work. 

Tetsu stretches his arms and pops his neck. A yawn escapes him. “I'm beat. We should get some rest if we get an update or our trackers go off.” 

Trekking in the snow and collecting data through the faintly shoveled paths leading him to inns along his walk catches up to Katsuki. Even after the long, much-needed shower, his bones feel weak, begging for rest. His eyelids begin to droop and he clicks his phone off and sets it and the communicator on the small side table next to the couch.

Eijirou places his hand on top of Katsuki's blond locks and ruffles them. Katsuki growls and slaps Eijirou's hand off. “Sleep well, Kats. We'll see ya when we see ya,” Eijirou stands and waves at him.

Katsuki sends the middle finger that has no heat behind it, “Yeah, Ei. See ya.”

A minute later, the lights turn off in the cabin. Tetsu pads to the room after Eijirou and the door stays open to allow the heat to travel. 

It is almost eerie how much louder everything becomes without the enhanced sense of sight. The trees creak outside, mounds of snow pummeling down—the fireplace crackles. 

Katsuki pulls the covers up to his face, tucking his feet in the pile the blanket forms for added heat, and goes unconscious. 

 


 

Three hours later…

 

He's freezing. 

The blanket and layers of clothing are doing fuck all. The fire in the fire pit is on its last leg, barely spitting heat out from the embers left. He grips the bedding and tries for the final time to get any semblance of warmth. 

There's none. 

Damnit. Katsuki groans loudly and stands up, the blanket wrapped around himself and heads towards the bedroom and to the bed Eijirou and Tetsu are on.

When he gets close, the soft glow of a nearby rosy colored night light shines onto the two bodies. Eijirou looks serene wrapped in a comforter, snoring softly. 

That's not all. Katsuki's eyes move to the arm wrapped comfortably around the redhead and the nose pressed along his nape. It's pretty evident what's going on. 

Tetsu and Eijirou are spooning. 

He doesn't blame them. His eyelashes could form icicles at this rate. Huddling together isn't much of a shock. Letting out a heavy, resigned sigh, the blond crawls onto the bed, which has enough room for him. 

It's cold hitting the bedding on the far side since it isn't occupied, but he quickly bundles up again and scoots as close as he lets himself get to the redhead's body. 

Not a chance in hell he'll cuddle the bastard. He just needs all the heat he can get. 

His eyes flit across Eijirou, from his red locks to his partially open lips. During his time at UA, his goal of becoming the number one hero stretched to others he never anticipated, centering around getting to know people rather than gaining a title. By developing a friendship with Eijirou, he received emotions he was not used to, as well as thoughts not as pure as they should be. Ones especially for Eijirou himself. 

And others. 

He shakes his head. Dispelling the fantasies for another time, he shuts his eyes and focuses on the steady snores Eijirou emanates to lull him to sleep. 

 


 

Katsuki's eyes pop open and he nearly lets his quirk off. Not only is he a thousand times hotter, but two arms are cradling him and another face is very, very close to his in front of him. 

The smell of bourbon shampoo rushing through his nostrils answers who is where. He slumps and tries to calm his erratic heart. Eijirou is spooning him and Tetsu is facing both of them. 

When did he get there? Last I remember, I saw Ei’s face before I fell asleep and Tetsu had his arms around him. Did he get up at some point?

He must've. Maybe it was another one of those nights where he had to use the restroom and rolled back in bed, not caring where he landed. It isn't like the redhead knew Katsuki would join them. It was probably a complete accident. It's not surprising that he didn't feel anything. He's a heavy sleeper through and through. 

Regardless, he was at a standstill. As much as he wants to shove Eijirou off and stomp his ass to the ratty sofa, stuck between both men and a set of not one but two comforters on top of him stops him. 

The faint shine of the night light brings a faded pink hue to Tetsu’s relaxed form. Lashes feather his eyelids, bits of his hair sticking to his cheek where it is stuck between his face and the pillow. His mouth is slightly parted to show the serrated edges of his teeth. 

Katsuki reaches up and runs his fingers across Tetsu's cheek in a light touch. He hasn't gotten this close to Tetsu before, mere inches separating their bodies. First, it's his knuckle rolling across his skin. Then, he introduces the tip of his index finger. His hand travels on its own, starting at his cheek and traveling to the bridge of his nose and over the bow of his lip. 

The blond is so enamored with Tetsu and his baby-soft skin that he doesn't notice something nudging his ass until Eijirou fidgets and grows closer, thereby removing any distance they may have had. 

His eyes are wide, frozen in place. His hand is barely hovering. Katsuki and Eijirou had a moment years back: the embarrassing act of waking the redhead from a wet dream because he’d been humping on him in his sleep. But it seems intentional and purposeful. Eijirou buries his nose in the crevice of Katsuki's neck and breathes out. The warmth sends goosebumps racing across his flesh. 

He flits his gaze to the hearth he can barely see past the doorway, debating whether or not to get up and throw himself in it. If it weren't ice age levels of cold outside, he would already be up and griping at his best friend. Hell, if it weren't freezing, he wouldn't be dealing with it at all. 

And yet he is. All he can do is either wait it out or handle the awkward consequences of waking the two men from their slumber so he can change where he is in the bed. 

“Mmnh… Bakugou?” Tetsu's groggy voice saying his surname takes him from Eijirou's unconscious actions. What Katsuki hadn't noticed was Eijirou getting so close it slid him in Tetsu's space, bringing his hand onto the top of Tetsu's forehead completely. 

Tetsu's eyebrows knit to remove the sleep his addled brain was swimming in. Katsuki is two seconds away from activating his quirk, so he isn't caught in the strange predicament. 

But Tetsu's cloudy, silver irises catch Katsuki's crimson and he's so screwed. 

He bites his lower lip. 

“What're you doing? I thought you fell asleep on the couch,” Tetsu keeps his voice low so as not to wake Eijirou up. Speaking of the redhead, Tetsu's gaze drags to where his arm is, “...When did–”

“Got cold. Ei awoke after I joined on the other side of the bed, but it appears that he came back unaware of what he was doing… and here we are,” Katsuki breathes out. He squirms in Eijirou's steadily tightening hold and inhales sharply at the warm nose now tickling his jaw. 

A chuckle makes Katsuki snap his head to Tetsu, who attempts to hide his grin, “Sorry, sorry. I don't mean to laugh. You just… you look so cute.” 

C-Cute?! “I am not cute, asshole.” The blond hisses through his teeth. 

He pouts as Tetsu lets out another quiet laugh, shaking the bed. “Yeah, you are,” He opens his mouth to retort and stops midway when Tetsu's fingers touch the shell of his ear. “Don't deny it.” 

His eyelashes flutter at the cautiousness Tetsu uses, nearly tentative. Almost as if he moves too fast, Katsuki will react harshly. 

They just stare at each other, neither speaking for several minutes. Tetsu's hand runs from his pale ear to the line of his neck, avoiding Eijirou's face along the route. 

Katsuki is content where he is, as weird as it sounds. Eijirou was one thing– as they'd shared a bed multiple times over the years–but Tetsu was another story. The only times he spoke to the guy were when they spotted each other at the gym or when he stopped by the redhead's apartment to hang out and Tetsu was already there.

His heart still skips when he looks at him despite it.

Tetsu is objectively attractive in all ways of the word. His thick silver mane of hair and long lashes are a definite eye-catcher. As soon as he became a pro, fans began flocking to him, complimenting him and saying he was hot as hell, which the blond believes to be true.

His physical appearance isn't the main thing Katsuki focuses on, though. It's the confidence he exuberates in every move he makes. His kicks, his punches, and even his quips are magnetic. UA was merely a stepping stone, a means of learning tricks for dealing with his quirk. He went from a sassy dumbass teen to an intelligent and calculated man–things Katsuki looks for in a person. 

It isn't hard to understand why Tetsu was asked to be here.

Eventually, Tetsu sighs. “I just…” He trails off and tucks a stray strand of blond hair behind Katsuki's ear, “You have no idea.”

Tetsu's breath smells of mint toothpaste. Katsuki wants to drown in it, “No idea of what?” 

Tetsu exhales, full of nerves, “...You have no idea how badly I want to kiss you right now.”

A gasp trickles from Katsuki in a shuddery wave. His hand grips the sheets, shielding them against the outside world, keeping the two in a moment reserved for them. He has felt a similar want for god knows how long, and Tetsu feels it, too. He internally celebrates and debates his next move.

Oh, fuck it. He's already come this far. “What are you waiting for? Do i–mmh.”

He doesn't finish his sentence. Tetsu leans in and presses his lips to Katsuki's. They're chapped from the cold, but he doesn't mind. He's sure his are just as bad. 

Not that any of that is on his mind. Tetsu is busy eradicating those pesky thoughts with the flick of his tongue as it meets his lips asking for entry. Katsuki provides it. 

They both tilt their heads for a better angle, but it's complicated with them lying down. Katsuki is a little stuck with the redhead wrapped like a koala around him, so he can't move much, but it does not stop Tetsu from sitting up on his elbow and deepening the kiss with a grunt.

The slide of mouths together and Tetsu's fingers raking through his blond hair have Katsuki on cloud nine. Tetsu's teeth scratch his skin and the surface of his tongue when he grabs it and tugs on it with them. 

Katsuki can't help it; he moans. 

And freezes. 

Tetsu pulls back a fraction, “You okay?” 

His throat clicks with a gulp and he flicks his eyes to the left several times to get his point across at the other party still in the room and mere inches from their activities. Understanding flickers in Tetsu's eyes and then he smirks. “You don't have to worry about waking him, Bakugou. He's been watching for a while.” 

…Huh?

“‘s alright. Continue, Kats,” Eijirou's voice shoots against his ear like lightning. A press of lips on his neck and jawline is made to motivate him. “Don't be shy. Kiss him again.” 

He wants to ask. He wants to know if this was planned in some regard or if Eijirou honestly had no intentions of cuddling him instead of Tetsu whenever he got up to do whatever he did. Then again, it isn't like it matters. They're here now; all he can do is enjoy the ride. 

Tetsu unceremoniously shoves his tongue past Katsuki's lips without letting him get a word in. Eijirou groans and thrusts into Katsuki's clothed backside at the sight.

Blood rushes down south to Katsuki's groin when he feels the hardness of Eijirou's erection bump his ass. The power he's holding yet relenting towards both these men is confusing. He isn't going to fight it, though. Why do that when he's getting the touch he's craved for years? 

Tetsu's hands travel now that he has free reign, grabbing Katsuki's face, arms, hips, and whatever he can get his hands on. Eijirou is no different, kissing the span of the blond's neck and shoulder, moving his shirt out of the way with his nose to lathe his tongue across his flesh while throwing his hips into Katsuki's heated form. 

Katsuki isn't quiet any longer. The whimpers he's letting out are true to heart. Tetsu keeps them at a minimum with the clever rolls of his tongue, the clamp of his teeth and the softness of his lips. 

A groan reaches Tetsu and Eijirou's ears as Katsuki yanks back, throwing his head onto the pillow. “F-Fuck.” 

Tetsu shoots a menacing grin. “Yeah?” A shape under the covers moves back and forth. “Feel good?” 

“S-Shit– Tet– Tetsu.” 

“I'll take that as a yes,” Tetsu chuckles. His hand stays out of view, but Katsuki's squirming is clear evidence of his antics. 

The redhead takes his lips off Katsuki's skin with a pop. A faint purple mark is left behind. “T,” His voice is husky, “Turn him. Wanna… wanna see too.” 

Katsuki is pushed onto his back. The covers are nudged down until Katsuki’s clothed lower half is visibly exposed. Tetsu's hand is hidden under Katsuki's dark sweatpants, moving up and down. 

Eijirou hums and smiles, “Just like that.” His arm trails to the hem of the blond's shirt and lifts it bit by bit, exposing his gorgeous abs and his mouthwatering pecs.

“You f-fuckers– ahh–” Katsuki grips Eijirou's bicep absently, “God, don't stop.”

“Not planning on it, baby,” Eijirou answers for Tetsu, who is already preoccupied by Katsuki's mouth again. 

Eijirou pinches his fingers together over a pert nipple, earning a pretty noise from Katsuki. Katsuki tries to keep the kiss going, but their touches nullify it, their wicked grins and Tetsu's hot hot palm on his twitching shaft. 

It's embarrassing how close he is. On an average day, it'd take about fifteen minutes to get in the mindset to jack off and then another twenty to get to that point. If Katsuki can take a guess, it has probably been five tops. 

The kick his cock makes in Tetsu's hold forms a knowing laugh in the back of Eijirou's throat. “Gonna cum, sweetheart?” It is rhetorical; Katsuki can tell, but he sees through the tears in his eyes that they simply want him to reply with the truth.

Fuck the blanket–his cheeks burning with a blush provide the apparent answer warming him. 

Eijirou's fingers grasp Katsuki's cheek endearingly, “Go on, baby. Let go. We got you.” 

Tetsu's thumb runs over his slit and that's all it takes. Katsuki's back arches off the sheets and his eyes slam closed as his orgasm rips through him. Just as his breath is torn from his lungs, leaving him speechless, Eijirou makes sure it stays like that by slamming his lips on his. 

Eijirou is a fantastic kisser. Katsuki had no doubts about that. What he does doubt is how he came to be so fucking good at it. There's gotta be someone that he'd been with. But Katsuki would've heard of it, right? 

Oh, whatever. It isn't any of his business. He's here playfully tickling Katsuki's tongue and mapping out his mouth with his. Who it was is in the past. 

All the while, Tetsu tears Katsuki's sweatpants and boxers to his knees. He mirrors the reddened hickies Eijirou made on the other side of Katsuki's neck and caresses the pale skin of his thighs, reveling in the stickiness that greets his palm. 

“Bakugou,” A gravelly voice calls his surname. Katsuki can't tell who it is; he's entirely out of it from his climax and Eijirou's wondering tongue, “I want to fuck you. Can I?” 

It echoes in his head. I want to fuck you. Only in his dreams would something happen to this degree. He tries to open his legs slightly, but his underwear and sweats stop him. He grumbles and shoves his legs until they're off him entirely. 

Tetsu purrs. “So needy, aren't you?”

Katsuki turns his face to hide it in the pillows. He muffles a curse when Tetsu runs his fingers in the mess Katsuki made and moves toward his hole, rubbing small circles along it. He stiffens up. Tetsu soothes him with his other hand, squeezing his thigh, “Easy. I'm not going to stretch you out yet. I'll prep you properly, don't worry.” 

The sound of the nightstand opening pulls his eyes from the pillow to where Eijirou takes out a half-filled bottle of lube. 

“H… How the fuck did you get that?” Katsuki questions in his muddled state. This is a cabin usually for couples, but would they provide lubricant? In this kind of place? In this shitty weather? That's already half-used? Unlikely.

Eijirou raises a brow mischievously, “Ask me later and I might tell you. I'd rather have you on your knees for now.”

A yelp cracks from his throat as Eijirou flips him over with one hand, Tetsu assisting on his other side to adjust where his knees are tucked near his stomach. He's vulnerable like this, hole showing and cheeks on full display. 

It's downright humiliating. 

The silence makes them pause. “Bakugou?” Tetsu tilts Katsuki's head with a finger under his chin, “Do we need to slow down? We don't have to go on.” 

He shakes his head, unable to vocally tell him no. He's afraid his voice will crack with emotion and he's already physically bare. Tetsu looks so honest, so willing to listen to Katsuki if he were to tell them to do anything other than continue. He doesn't have to glance at Eijirou to know he has the same expression. 

Tetsu raises his finger from Katsuki's chin to brush along his swollen lip. “If you're sure.” He gets on his knees and fiddles with his pants, “Then can I mess up your pretty face while Ei stretches you open?”

Oh fuck. 

His mouth waters at the thought and he moans. Tetsu smiles darkly and tugs his dick in Katsuki's face, tapping the tip along his lips. “Good boy. Say ‘ahh’.”

Eijirou, in the meantime, places his lubed-up middle finger into Katsuki, followed by his ring finger when his hole gradually grows accustomed to the intrusion. Katsuki's teeth graze Tetsu's cock. His eyes flutter closed. 

“You look so good like this, Kats,” Eijirou whispers, “kneeled for us, allowing me and Tetsu to do whatever we want.”

Katsuki replies with a moan. 

“You've wanted this for so long, haven't you?” Eijirou coos, sticking his index finger next to the other two, “Wanted us to take you. To mark you. To finger you. To take you as ours .”

“Fuck, Ei.” Tetsu curses, shoving his hips forward and hissing when Katsuki gags and his throat tightens around his shaft, “You can't say shit like that. You know what it does to me.”

If Katsuki weren't filled with cock and thick digits, he'd probably question what he meant. 

Eijirou huffs amusingly and flicks his fingers against the spot that makes Katsuki tremble. He aims for it, indulging in the sweet, barely-heard sounds he lets out around Tetsu's dick. 

Katsuki grunts as Tetsu pulls from him and chokes when he leans over to spit directly into the hole between Eijirou's fingers. 

Then he immediately grabs Eijirou's nape and kisses him. 

They move so smoothly, actions practiced and memorized. The digits lodged in Katsuki stop and Eijirou kisses back, tongues intermingling. Fuck the fact Tetsu's saliva is slipping into him to mix with the lube. This is far more interesting. 

Katsuki watches intently. His dick leaks onto the sheets. His palms heat up, as does his body. 

It's easy to tell. They've done this before. 

And he's so fucking into it. 

“Keep going, Ei,” Tetsu says against the redhead's lips. Eijirou's eyelids lower as Tetsu growls. “Make him cum again, pretty boy.” 

Eijirou whines and starts where he left off. Katsuki shouts and grabs the sheets as his prostate is annihilated much harder than before. Tetsu pushes his dick along Katsuki's lips once more and the blond complies, blinking blearily up at him, his mouth partly full.

His climax hits him out of nowhere. From the sight of Tetsu and Eijirou kissing to the absolute torture his prostate was receiving, he hadn't noticed how close he was to his second orgasm. White strings cover the bedding beneath him. Tetsu groans and Katsuki hears them kissing again. 

He moans, feeling the redhead's fingers leave him one at a time once the aftershocks wear off, his hole clenching around the phantom feeling of the thick digits. It doesn't last long since Eijirou presses the head of his cock along his abused rim. 

He gives him no reprieve and Katsuki honestly doesn't mind. He's too fucked out to care.

“You said you were cold, right, Kats?” Eijirou asks rhetorically as Katsuki is much too preoccupied at the moment to reply. He drums the tip a few times and positions it. A grin slides onto his lips, “Allow me to warm you up.”

Then he shoves in. 

Three fingers opened him up and it still does not take the sting away. Katsuki's eyes water and his mouth goes loose amidst a slur of indecipherable noises. Tetsu grips his blond hair in a fist and lightly rocks his hips to try and have Katsuki focus on him rather than the colossal intrusion burying itself in his insides. 

“Easy, sweetheart. Pay attention here.” Tetsu soothes Katsuki with the slide of a pet name and the salty taste of precum coating his tongue. “You can do it. Relax for us.”

It takes time, but Katsuki eventually grows used to the girth of Eijirou. His walls convulse and release the tight hold they had on the tip of Eijirou's dick.

Eijirou's voice cracks over a moan, sending inch by agonizing inch. They all feel breathless by the act alone, Katsuki more so with not one but two things buried deep in him. 

The lack of external heat they were getting from the fire disappeared long ago, but the three men didn’t give notice. The sweat rolling down in burning lines and the connection of their bodies gives enough warmth to keep them comfortable. 

Eijirou bottoms out in Katsuki, legs quivering at the hot, dripping hole begging to get fucked encircling him. He grips the blond’s hips, nails digging into his pale skin. “‘m going to… start moving, baby. Okay?” 

Katsuki slurps around Tetsu and exhales through his nose. A small “mhm” is all Eijirou needs to go on.

The slow glide out pulls a whimper from Katsuki that contorts into a pleasured cry as Eijirou slams their hips together again. His mouth comes off Tetsu wholly, gasping in air. Tetsu's dick sits on his cheek, wet with saliva. 

“Shit, Eijirou. A fucking warning before you destroy my ass would be nice.” His voice is ruined beyond belief. 

The redhead chuckles and smacks his hand against Katsuki’s butt cheek. “I just started.” 

“And you almost took out my insides. Your point?”

A wet inhale takes the remainder of Katsuki's retort. Eijirou smirks. “Hm. Kinda like that?” 

Katsuki wants to snap, but the head of Eijirou's cock is teasing his prostate and he's seeing stars. Instead, all he can say is, “F-Fuck…” 

Tetsu grabs the base of his dick and touches it gently on Katsuki's face, “If ya ain't gabbing, make your mouth useful, yeah?” 

To his and even Eijirou's amazement, the blond opens his mouth and takes Tetsu down in one fell swoop. Half the shaft goes past his lips. The remainder drags in each time Katsuki bobs his head. His eyes slip shut and he hums around Tetsu, stopping now and then to send his hips back onto Eijirou and his nonstop thrusts that grow unsteady.

Faintly, Katsuki hears Eijirou mumble, “Tets. Tets, kiss me. Kiss–” and then he's quiet. The smack of lips connect over and over and all their bodies collide.

How had they never done this until now? How come it had to come to a night where Jack Frost was beating down a cabin door for them to finally do something about their feelings?

Past Katsuki would be reeling . Present Katsuki is about to cum for the third time and it seems that he isn't the only one.

It happens in the time he spills his release where he feels heat lashing his insides. The pain surges out of nowhere, registering the nails embedded into his sides where Eijirou had activated his hardening. 

His mind is taken off the matter momentarily as Tetsu drives his hips forward, his cock disappearing all the way to the back of Katsuki's throat to dispense its load. Katsuki gags but swallows, regardless of whether it is necessary or not. The action alone of both men shooting their cum in him could push a fourth orgasm out of him if he didn't feel like he already came his brains out. 

They all descend from the aftershocks at relatively the same time. Tetsu slowly drags his dick from Katsuki's mouth, the tip getting stuck on the ridges of his teeth before exiting with an audible ‘pop’. Katsuki pants open-mouthed, saliva dripping from his lips to land on the bed. It doesn't drop for long as Tetsu grips his face and kisses him hard, tongue and all. 

Katsuki mewls quietly and attempts to kiss back, but every bone and muscle in his body– save his knees, which have miraculously not collapsed– have fallen asleep. It is an excellent distraction for Eijirou to remove his member from Katsuki's ass with much less grace than Tetsu had. Cum dribbles from his hole and down his thighs. 

Tetsu and Katsuki end the kiss when breathing becomes crucial. Eijirou presses light ones on Katsuki's spine, his hand following the trail to help him relax and fall from his stance on his knees. 

Katsuki's vision grows blurry, watching the silhouette of Tetsu leave the bedroom entirely. The comfort of Eijirou's palm trailing up his side is a soothing diversion. He turns in Eijirou's hold, wincing at the pain that shoots up his back. Eijirou whispers sweet nothings and holds the sheet to cover Katsuki's nude body. 

Since starting this whole thing, Katsuki truly takes the moment to stare at the redhead. With him out of sight for the entirety of their activities, Katsuki had, in a way, missed his best friend's face. He had made out with Eijirou and even had his dick inside him, but it wasn't the same with him behind him. 

For a brief instant, Katsuki envisions what it could've been like if Eijirou hadn't woken up and got back in bed. If he had stayed, Katsuki would have been dragged from sleep by Eijirou's sweet face instead of Tetsu's partially conscious one. The diversity of their intercourse would be a total 180 then. 

That's okay. There could be another instance like this. He could have them swap positions on a day at the redhead's apartment. Or he might be stretched enough to take them both. 

…or maybe not. Maybe now that they've had their fill, they won't want to do this again. Maybe having Katsuki to fuck for one night is all they wished for. 

“Hey, hey,” Eijirou's tone drags in concern, “You're spiraling.” 

Damn Eijirou for reading him like a fucking book. “Am not.”

“Are, too. I can see it clear as day, Kats.” 

Okay, he may be pouting, lip jutted out and hands hidden from view. So what? 

His whole body jolts feeling something wet rub against his abused hole. Then a hot breath hits his ear, “Sorry. I wanted to clean you. Should've warned you that I was back.”

Tetsu returned. He must have a rag or something. It is careful at rubbing the remains of Eijirou's spend and the lube that's dried on his flesh. 

“I'm guessing that you both have the hots for me,” Katsuki sits up once Tetsu is done, hissing in discomfort. Eijirou and Tetsu help him by raising the pillow behind his head. 

Eijirou laughs after they settle in the sheets, “I think it's obvious based on what we just did. Don't you think so?” 

Katsuki crosses his arms over his chest. He scoffs when both men's eyes immediately pan down, “Fucking duh.”

“So why ask?” 

Katsuki grows hesitant. His subsequent inquiry reveals a helpless side of him, more than the one he just flashed during sex. It weighs on his mind and has hopped in circles in the moments he thinks over the hypotheticals. “Well, is it only because you both wanted to fuck me?”

Identical looks of shock cross Eijirou and Tetsu's faces. The redhead reacts first, settling in close to the blond. His eyes sparkle with sincerity. “Katsuki… this was way more than just sex for us.”

Having Eijirou and Tetsu in his life is a wish come true (more than he'd care to admit aloud) and here he's hearing it in real-time, with the weight of Eijirou's hand caressing the apple of his cheek.

“We have the “hots for you”, like you said, but it's bigger than that, too.” Tetsu joins to add his two cents. The nightlight's fushian glow doesn't hide the blush covering Tetsu's face. 

“We like you, Kats.” A murmur so soft Katsuki had to lean in to hear it grace his ears. “We have for a long time.”

The words hit his heart. It isn't every day someone announces that so easily, especially toward a guy like him. It puts him on edge, wary of the possibility of them only saying this in the afterglow and changing their minds once clarity returns.

“You know, me and Tets were at each other's throats for the longest time,” Eijirou admits. Katsuki watches Tetsu reach over to grab Eijirou's knuckles. The redhead turns their arms so his hand is on top. His thumb caresses the top of Tetsu's hand, “When you started coming around my place often, he was so jealous.” 

“Jealous?” Katsuki parrots, too intrigued to keep quiet, “Of what?” 

Eijirou laughs. His and Tetsu's hands intertwine. “He thought you and I were hooking up. We got into it one night when you were at work.” 

Oh. That would explain the overturned furniture that one day I went over there. 

Wait, hooking up? Why would he think that?

“Ei tried reasoning with me but I wasn’t having any of it. My thoughts clouded my judgment and I wasn't willing to listen.” Tetsu sounds as if he's pondered the event. “One minute, we were arguing, and the next, we were fucking in Ei's bed.” A chuckle, “This has been going on for… let's just go with ‘a bit’ ever since.”

Aaaand that would explain the bite marks I always saw on Ei's back. And why he started wearing a SHIRT. I thought he was sick and now I'm hearing it was because he and Tetsu were fuck buddies. 

…Right? His eyes drift to their hands. Or are they together? This is so fucking confusing.

“The longer we went on with our arrangement, the more I fell for him.” Eijirou chimes in, “Little did I know that Tetsu felt the same. I blurted it out in the middle of us messing around once and he stopped completely and told me he liked me too.” 

Tetsu raises their clasped hands. “I wasn't planning on having feelings for another guy. It just happened. With Ei, it's natural. It feels right.”

“Initially, it was a way to release what we felt for you between us instead.” Eijirou says, “We didn't think we’d ever have you in our bed.”

“Well, now you do. Deal with it.” Katsuki grumbles. Hearing Eijirou and Tetsu are already in a relationship and still having feelings for him makes butterflies form in his stomach. You can indeed have a crush on more than one person. There's nothing wrong with it. He just never thought he'd ever be in this predicament. 

With Eijirou and Tetsu on either side of him, gazing at him like he hung the stars and moon in the sky himself. 

“I'm fuckin' tired as hell. I'm going to sleep.” Katsuki ends his sentence with a yawn and a long stretch of his arms above his head. He lays back and grins when Eijirou and Tetsu join him, shuffling in as close as they can get. 

Katsuki didn't expect when he sidled in the bed that he'd wake up clothed and in Eijirou's arms and fall asleep half naked and between the two men he's had a crush on for years. 

Crazy how shit happens. 

His eyes slide shut as he grows comfortable, surrounded by his personal heaters and smiles. 

 


 

Sunlight filters through the windows. The chirping of birds flies past the snow-covered cabin. The blizzard from the night before seems to have passed. 

That's not what wakes all three men up, though.

It's the alarm going off on all of their communicators. 

All of them are scrambling to throw their gear on. Katsuki lets his quirk off in his gauntlets a few times to be sure it's active and ready. Eijirou snaps his pauldrons in place on his shoulders. Tetsu clips his mask on and adjusts it where it lays on his chin correctly. 

The three pause when they're done and share a look. They expected to have a little time to talk more, maybe share breakfast in the form of a microwavable bowl full of frozen eggs and sausage. 

But instead, the villains they were tailing decided to attack a nearby tower at the ass crack of dawn. 

Katsuki moves first. He grips the sides of Eijirou's mask to place a short kiss on his lips. He rushes over to Tetsu to give him one after. 

“Come on. We gotta kick some ass.” Katsuki grunts, pink covering the tips of his ears as he wrenches open the front door and activates his quirk to fly into the air. 

Eijirou and Tetsu blink momentarily and then laugh at Katsuki's bashfulness. They stare at each other and meet in the middle to kiss quickly. “You heard our boyfriend.” Tetsu smirks when they disconnect, hitting Eijirou's fist with his and walking out with the redhead, “Let’s go."

Notes:

As always you can find me on Twitter, Bluesky, Tumblr and Pillowfort @kitkatrix