CW : anal fingering, kinda first times, all characters are 18+

It was hot under the covers.

Kirishima wasn’t sure if the heat was coming from him or Bakugou, but it didn’t really matter. Not when their tongues were literally too tied to speak to one another.

Bakugou had pulled Kirishima on top of him, one arm around his neck, fingers deep in his hair, pulling his head this way and that; angling him into the best position to shove his tongue as far down Kirishima’s throat as possible.

Eijiro didn’t mind that Katsuki was rough with him, he didn’t mind the lip bites or the teeth clashes. He just loved that his boyfriend couldn’t get enough of him – because that was Katsuki’s love language, haste, passion, impulse.

Kirishima could live with being grabbed and pulled, he really just wanted to make Bakugou happy. And by the way Katsuki’s hard cock was digging into his hip bone, he could tell his boyfriend was more than satisfied with the situation.

Katsuki’s free hand was already down Eijiro’s boxers, tossing him off furiously with slippery fingers. It wasn’t really Eijiro’s style – certainly not how he sorted himself out – he generally liked it slower, more indulgent,—

—but this was good too because it was Katsuki, so automatically it became the best handjob ever.

Every handjob from Katsuki was the best handjob ever. And the blowjobs? Indescribable. Katsuki sucked his dick like he needed it to fucking breathe.

Obviously, Bakugou was good at everything he did, was always the best, aggressively competitive. Even at sucking dick.

But his ability to conquer all might be down to his straightforwardness, his /shamelessness/. His ability to run his dirty little mouth and coax exactly what he wanted from Eijiro.

Kirishima didn’t mind, he enjoyed it in every aspect.

What he didn’t enjoy, however,—

was when Bakugou’s hand left his hair, trailed tantalisingly down his back, slipping over damp skin, dancing unsuspectingly over the dimples of his back before suddenly, and quite unashamedly, darting beneath his boxers and shoving the pad of his finger right against Eijiros rim.

Startled, Eijiro ejected himself from the bed immediately, falling to the floor with a heavy thump.

“The fuck?” Bakugou was leaning over the mattress, looking pissed as all hell. Even in the darkness of their bedroom, Kirishima could see that smouldering scowl.

“You made me jump!” Kirishima shot back defensively, wincing as he brought himself up into a seated position.

“What? Did I sneak up on you or something?” Came the snap of a response, followed by a loud huff and a muted thud as Bakugou fell against the mattress in a strop.

Kirishima scrambled up from the floor, “You can’t just shove your finger in another man’s arse, Kat.”

“What? Not even when you’re making out with them and have your other hand around their dick?”

“We haven’t…” Kirishima started, but he trailed off when he didn’t know how to broach the situation, “I don’t know, we haven’t spoke- erm, I’ve never, /we’ve/ never- I-“

“Use your fucking big boy words and spit it out.”

“I’veneverputanythinginmybuttbefore.”

Bakugou blinked, watching as Kirishima slowly, like a naughty puppy hanging its head, clambered under the sheets beside him.

“Excuse me?” There was a quirk to his voice, a choke of a laugh.

Kirishima whined loudly, shoving the balls of his palms into his eyes in shame, “I’ve never done anything like that before.” He could feel how red he was, his cheeks were burning and he was sure Bakugou was about to laugh at him and call him stupid or something.

Much to his surprise, there was a very casual, “Wanna try?”

Kirishima dropped his hands and blinked at his boyfriend through the darkness. Katsuki was turned to face him, propped up on his elbow, head in hand.

When Kirishima didn’t immediately reply, he pressed, “Well?”

“I haven’t… I don’t know, it seems kinda scary.”

Bakugou /did/ scoff then, although it wasn’t really in mocking, more just general amusement, “Call yourself a gay man,” He teased /almost/ playfully.

“Hey, don’t shame me, you’re my first!”

Kirishima /heard/ Bakugou roll his eyes that time, “Whatever,” He sucked his teeth, “wanna do me first?”

There was a pause, “What?”

“Wanna finger me? Show you how not scary it is.”

“A-are you being serious right now?”

“Why wouldn’t I be serious?”

Even in the darkness, Kirishima could see his boyfriend's hard expression because yeah, he was being totally serious.

Eijiro swallowed loudly, “Okay, then.”

There was an awkward pause, “What?” Bakugou snapped suddenly, “Do I need to do everyth-hm!”

Kirishima had jumped him, crashing their lips together partially to shut up Bakugou’s whining, but mostly because /holy shit/, he gets to finger his boyfriend.

Before he realised it, Bakugou’s hands were back all over him, running over his shoulders, squeezing at his biceps, moving to pinch at his nipples that had him groaning and biting into Katsuki’s mouth roughly.

Katsuki was practically purring as he rolled him over, “Sit up,” He instructed through a heated kiss, pulling at Eijiro already, “Against the headboard.”

Kirishima wasn’t entirely sure what was going on, but he did as he was told because it was easier for everyone that way.

He pushed some pillows up so he could sit up straight, legs out in front of him, as Bakugou moved to his bedside drawer and grabbed – what Eijiro noticed to be – a nearly empty bottle of lube.

“You do this often?” He squeaked.

“Yes,” Came the sharp reply, “what’s your point?”

“Nothing!” Eijiro watched with wide eyes as Katsuki clambered into his lap, shedding his boxers clean off moments later, his hard cock springing free. It sidetracked Eijiro for a moment and he made a move to touch it before his hands were slapped away.

“Then what of it?”

“I-I just, I don’t know, I guess I wasn’t expecting it,” He hesitated, letting Katsuki settle between his spread legs, his back pressed to Eijiro’s front, “next time, maybe you could ask me to help you out?”

“Depends if you’re any good.”

“Do you like it?” Eijiro trailed his lips over Katsuki’s temple as he got himself comfortable against Eijiro’s chest, shuffling his way between his legs.

He laid back comfortably, “Yeah,” He replied, “I do,” And then in one, swift motion, he spread his legs so wide he hooked them over Eijiro’s.

From this angle, Kirishima could see right down Bakugou’s front, his toned abdomen hid under the swell of his full chest, but just visible was his hard cock, kicking slightly as he moved to press right up against Eijiro.

He leaned back, dropped his head over Eijiro’s shoulder and mouthing at the soft spot just below his ear, “Fingers,” He demanded, and instantly Kirishima held out his right hand.

Bakugou quickly lubed up three fingers while Kirishima watched, breathing heavily, heart racing.

But then Katsuki was manoeuvring his hand, sliding it between his legs, below his balls that twitched at the barely-there touch and made Eijiro gasp a little.

“There,” Katsuki purred, sighing into his ear. He held Eijiro’s middle finger, slicked up and dripping slightly as he slowly circled it around his puckered ring. Kirishima held his breath. “Can you feel it?”

“Y-yeah,” Eijiro managed out and Katsuki sighed contently against his neck, nipping at his earlobe. He relaxed against the redhead, kicking his legs out wider and he grabbed Kirishima’s other hand and led it to his chest, forcing his fingers over a hard nipple.

“Touch me here, too.”

“Okay…”

Katsuki was surprisingly slow with his ministrations, although that could be because he was watching Eijiro so intently, getting off on the redheads wide-eyed stare and caught-in-the-headlights expression.

Kirishima could feel the ring of muscle beneath his fingertip twitch and give way, he could feel Bakugou’s cock dribbling against his forearm where he was leaning over it.

“That feels nice,” Bakugou purred again and Kirishima gasped when he felt Katsuki flutter beneath him, “wanna go for more?”

He didn’t wait for a response, he was already slowly pressing Eijiro’s fingers forward, letting his arsehole swallow up his slick middle digit.

It was tight and hot, and the pull around Kirishima’s finger made his head spin. His own cock was drooling in his underwear, soaking it through. Bakugou must have been about to feel the wetness against the small of his back.

Kirishima’s breath hitched when they went past the first knuckle, and then the second. Below him, he could see the steady rise and fall of Bakugou’s chest, smooth and fluid.

“Move your finger over just a little- oh, shit, /right there/.”

Kirishima almost jumped when Bakugou’s tone of voice changed, going up a pitch and becoming more breathy. But it was hard to dwell on that when he /felt/ the reason why his boyfriend was suddenly panting and shuffling his shaking legs.

“Is that your…?” He began.

“Yeah, fuck, yeah,” Bakugou was grinning over his shoulder, grinding his hips onto Kirishima’s finger and gasping, “that’s my sweet spot, my prostate, fuuuuuuck, Ei!”

He grabbed hold of Kirishima’s wrist a little hard, angling it to thrust more purposefully into him, massaging it in and out.

“Like that, fuck, yeah,” His body rolled, back arching and he let out a breathy moan that Kirishima had never heard before. Usually, Bakugou was rough with carnal grunts and groans, but this was blissful, indulgent almost, slow and meaningful and fuck Eijiro was so fucking hard.

He wanted his dick to be bringing those sounds out of his boyfriend.

But his fingers would do for now, this way he had more acute control, massaging his finger slowly in and out, pressing the pad of his finger right over where the texture changed to something silky and soft.

Bakugou’s hips were rolling against his hand, cock hard and dribbling all over his stomach whenever it would jump back. Kirishima could feel Bakugou’s balls lift and drop against his wrist with every soft moan.

“That’s it,” Katsuki breathed, tossing his head, he reached up and back with one hand to bury his fingers into Eijiro’s long hair. He arched his chest some more, pushing it into Kirishima’s fingers that were still pinching at his nipple,—

—“Oh, fuck yeah, Ei, your finger feels so good inside of me.”

Kirishima’s entire body was on fire, his skin prickled with heat, sweat beaded down his spine, across his brow, Bakugou was igniting him and he couldn’t stop.

“Can you cum like this?” Eijiro asked, tongue-tied in his mouth.

Katsuki didn’t seem to notice though because he whined again, “Fuck, yeah I can. Fuck, yeah.”

“Shit, really?”

“Ah! Ngh! Yeah!” Bakugou’s voice broke again in a cry and Kirishima jolted from where he nearly came in his pants. He squeezed his eyes shut for a moment.

“Another finger, another finger, Ei,” Bakugou was tugging on his wrist again, pulling at his index finger to line it up with his wet hole, “fuck, I want to be so full with you.”

Kirishima had to squeeze his eyes shut again, blinking away the stars that were forming. But he couldn’t hide from Bakugou fucking himself onto his fingers now, whining and making the most delicious broken gasps and moans.

It was nothing Eijiro had experienced before, he’d never seen or heard his boyfriend like this, never when they were jacking each other off, never when he was on his knees and letting Katsuki fuck his face.

The stretch around his fingers was suffocating, and he could feel Bakugou’s breathing become shaken.

“I’m going to cum like this, Ei. I’m going to cum on your fingers. You want that?”

“Fuck,” Eijiro ducked his face into the crook of Katsuki’s neck and bit down gently on the soft skin there, making the blond cry out again. “Yeah, fuck, please do, baby.”

Katsuki whined again, legs bending at the knee as his toes began to curl, “Gonna cum,” He gasped, free hand pulling at his other nipple, Eijiro watched him roll the pebbled bud between his fingers and he tried to match it with his hand on Katsuki’s other tit.

“Another finger,” Bakugou started chanting again, “I wanna come on three of your fingers, please, fuck, give me another, give me anoth-/aaaaaah/!”

Kirishima pushed in a third, casting a lewd, wet noise across the room. He hooked his fingers around immediately, squeezing them in and pressing right up against Bakugou’s prostate.

He was cumming moments later, back arching, head thrown back and mouth open wide as he fell utterly silent for the first few spurts of cum that flew from his jumping cock.

Kirishima’s eyes went wide, breath hitching as he forgot to breathe. He wanted with bated breath as his boyfriend had what looked like an utterly mind-blowing orgasm.

His toes curled so hard his legs shook, and after a few seconds, after the initial crest of the orgasm, he let out a loud, broken cry, chest heaving.

“Fuck!” He slumped, falling back against Kirishima who still hadn’t breathed. “Fuck, fuck, fuck!”

Eijiro suddenly gasped, heart racing and in sync with Katsuki’s whose he could feel through his front.

“Holy shit,” He breathed, and he blinked down at Katsuki when he turned to look up at him, looking wrecked and blissed out.

“Still scared?” He breathed, blinking slowly and licking his lips.

Kirishima let out a breathy laugh, “No,” He said slowly, and he carefully began to slip his fingers free.

It made Bakugou hiss and moan, legs still shaking, and Eijiro had to help him move them back into a more natural position.

“Feel like jelly,” Katsuki hummed, snuggling into Eijiro’s chest.

“Shit, yeah, I bet,” Eijiro blinked down at the top of Katsuki’s head. “Is it my turn now?”