Chapter Text
Everything had been going just fine – well fine enough, at least - in Amajiki Tamaki’s life until the day he’d accidentally called his boyfriend ‘bunny’. Toogata Mirio had been elated about the nickname, cooing over Tama while the dark haired man blushed hard enough to pop blood vessels.
“M-Mirio, it’s not a big deal, I’m sorry-”
“Nonsense! I love it!” Mirio burst out into his typical booming laugh, Tamaki shrinking further into himself. He adored Mirio, really, but he was so loud. At least Nejire wasn’t also here. The two of them together were too much for Tamaki’s poor heart, and if she’d been here to witness the ‘bunny’ mishap… he didn’t want to think about what would have happened.
Unfortunately for Tamaki, Mirio decided to fixate on it. And he wouldn’t be happy until Tamaki had a suitable nickname of his own. Dating Mirio was like dating an east-blowing breeze – the blonde would appear, prod at Tama and chuckle, ask questions, and then be gone. It was even worse when he was excited about something, because then his quirk would get involved. Tamaki would be doing something, minding his own business, and then suddenly his boyfriend’s face would just BE there.
The first time this had happened since the ‘bunny’ incident, Tamaki was reading under a tree. He was leaning against it, and then Mirio’s face was in the tree next to his own.
“Hey buttercup!”
Tamaki about flung his book and threw himself to the side. “M-Mirio!”
The blonde scrunched his nose. “Mmm, no. That one doesn’t fit. I’ll try again.” And then the face was gone. Tamaki was left on the grass, blinking and trying to slow his heart rate. It continued like that for ages – Tama would be washing some dishes in the dorm and Mirio would pop up behind him, call him ‘darling’, then crinkle his nose as he decided against it and vanish again. It scared the crap out of Tamaki every time, and what was worse, he knew that Mirio was going to keep coming at him like this until he found something that he decided suited the dark haired man.
It was going to give him a stroke. And there was nothing he could do about it.
The nicknames didn’t always come as a surprise, however. They were in a combat training course and Mirio sidled up to him. They usually have a short conversation about strategy so Tama isn’t surprised, but he almost trips over his own feet when Mirio rumbles out a ‘hey, honey’ in a voice a few octaves lower than he’s ever heard him use outside of their bedrooms. Mirio chuckles as he catches Tamaki, preventing him from falling onto his face, and Tama looks at the blonde with wide, panicked eyes.
“Mm, no. Still not the reaction I’m looking for.” Mirio gives Tamaki a bright grin and pulls him along as they go to catch up with Nejire. Tamaki’s blush doesn’t fade from his face for the rest of the training, but lucky for him (or unluckily?) his reputation of crippling anxiety means his classmates don’t take his blush as anything but normal.
They’re eating lunch in the lunch room, Tama with a mouthful of tea when Mirio tries his hand at calling him ‘pumpkin’. He narrowly avoids a spit take and stares at the blonde, who laughs and rubs the back of his head.
“Ah, sorry! You just have some on your tray and I thought it might work.” Mirio gestures to the roasted pumpkin on Tamaki’s lunch tray. Tama just gives him a look. “I guess not. I’ll find it though, I promise.” His grin darkens a little, and Tama shivers under the weight of that promise.
Mirio invites Tamaki back to his dorm room to study after class ends since Nejire has her hero study. That isn’t an innuendo usually – being two of The Big Three meant that they needed to have top grades as well as being top heroes. It wasn’t uncommon for the three of them to hole up and cram for exams together. Mirio and Nejire were both very smart but easily distracted, and Tama would spend half the time trying to corral his best friend and his boyfriend. They do study for a while, quietly sitting together on Mirio’s bed and reading their text books, when Tamaki feels a kiss ghost across his neck.
“Tama, angel… I’m bored.”
Tamaki blushes immediately. “I’m not, you shouldn’t-” He covers his face in his hands and Mirio chuckles.
“Ah, sorry cupcake. Or should I call you Gillette? You know, the best a man can get?” He laughs at his own joke and Tamaki curls in on himself, blushing brighter. “Aww, baby, don’t be like that.” Mirio gently grasps his hands to pull them away from his face, kissing his lips softly. “I do think we need a break from books though.” The blonde pulls Tamaki into his lap, and then starts pressing kisses to the indigo-haired man’s neck. Tamaki shudders in his grasp and brings a shaky hand up to play with the baby wisps of hair at the base of Mirio’s neck. It had taken ages for Tamaki to feel confident enough to return Mirio’s affections, and the blonde had been so patient with him while he fought his anxiety. It was something that Tamaki would appreciate for as long as he lived, even if some day Mirio moved on from him.
Mirio’s kisses trail up to his mouth and his hands slide down Tamaki’s back, cupping his ass and pulling him in close. “Ah, Tama…” Mirio groans as Tamaki’s hardening dick grinds into his own, and Tama is partially surprised as how rock hard the blonde already is. He lets out a shaky moan, letting his fingers tangle in Mirio’s perfect hair. Their kiss deepens, Mirio immediately taking the reins and swiping his tongue against Tama’s bottle lip. Tamaki shudders and opens his mouth immediately. Mirio is always welcome to all of him, but he’s always gentlemanly enough to ask.
“Tama, take off my shirt.” Mirio whispers the words in between kisses, like he can’t let himself stop kissing Tamaki for as long as it takes to get out a sentence. Tamaki slides his hands down Mirio’s chest and grasps the blonde’s shirt in his thin fingers, dragging them up his abs as he pulls the fabric up. Mirio’s hips are gently rocking into his, and the blonde’s skin feels like fire where Tamaki’s fingers are brushing. “I want yours off too, Tama, please…”
Tamaki’s cheeks immediately flush and he dips his head, tucking his face into Mirio’s neck. The blonde’s hands slide up from his ass and grab onto his shirt, slowly pulling it up. Tamaki is still fairly uncomfortable with his body and nudity in general, but Mirio had absolute patience when it came to this too. It still wasn’t something he was a hundred percent cool with but he was comfortable enough with Mirio that he was okay with it happening. Mirio groans as their bare chests press together and captures his mouth with another kiss.
Tamaki has always been super reserved thanks to his near crippling anxiety, and he’d never been able to see himself this open and vulnerable with another person. He had honestly been scared of Mirio when he’d met him – even when young, the blonde had shone like the sun, and Tamaki was more than happy to remain hidden in the shadows. But Mirio had decided that they needed to be friends, and then when they had started their high school careers at UA, asked if Tamaki wanted to be more than that. It had taken Tamaki a long while to be able to open up but Mirio had the patience of a saint, all smiles and soft encouragement. Tamaki was certain that he wouldn’t be nearly as far along as he was today without Mirio in his life.
“Ah, Tama…” The blonde groans again and slides his huge hands down Tamaki’s back. The size of Mirio’s hands always made the dark haired man shiver. They were so strong, so powerful. He felt safe in them. Tamaki lets out the ghost of a moan in response, arching his back as Mirio’s hands slip into his pants to cup his bare ass. Mirio lets out another loud groan in response – the pair were just as mouthy in bed as they were out of it. Mirio was loud and encouraging, Tamaki was soft and quiet. Any noise that Mirio could draw out of his partner was treated like gold and only served to work the larger man up more.
“Tama, do you want…” Mirio trails off, pulling away to look Tamaki in the eyes. Tama looks back into Mirio’s blue eyes, knowing exactly what he’s asking, and blushes fiercely as he nods. Mirio breaks into an actual moan and slides his hands further, wide fingers gently pulling Tamaki’s cheeks apart.
“M-Mirio, do you… do you h-have…” He still has a tremor in his voice but it’s only partially due to his anxiety. Mirio nods, pressing their foreheads together.
“Of course Tama, I got you.” One of Mirio’s hands slips out of his pants and Tamaki almost whimpers from the loss of contact. He buries his face into Mirio’s neck again, gently grinding their hips together as he hears the drawer in the nightstand open. “I need to take these off…” Mirio’s voice is low and he squeezes Tama’s ass with the hand still in his pants.
“Yes…” Tamaki mumbles into Mirio’s neck, but the blonde responds with a swift kiss to his head. Tamaki doesn’t need to stand, Mirio is able to lift him bodily and slide the pants off of him. It helps that Tama is as lanky as he is, but even if he wasn’t Mirio is a literal powerhouse. Tama is quaking a little as he sits in Mirio’s lap fully naked, but Mirio is pressing kisses to his neck and sliding his hands back down to cup his ass and spread his cheeks. Despite his strength Mirio is so gentle with him. Tamaki shudders as Mirio’s hands vanish and he hears the pop of a cap. The blonde’s hands return, spreading his cheeks wide and one slick, lubed finger prodding as his hole. Tamaki lets out a tiny moan, leaning forward to stick his hips out farther, anything to get Mirio better access. The blonde carefully lets the first finger penetrate Tama and the smaller man shudders. Mirio’s fingers are thick, it only takes two of them to open Tamaki enough to be able to easily take the blonde, which means the first finger is a challenge.
“Sorry Tama,” Mirio mumbles, what he always says with the first finger. Tamaki shakes his head, trembling in Mirio’s lap as the blonde slowly moves his finger in and out, helping the tight muscle to relax. Soon Tamaki is rocking back and forth on Mirio’s finger, causing the blonde to let out a moan. “You ready for the next one?”
Tamaki nods, rotating his hips in a light circle, blush coloring his cheeks. “Y-yeah…” His voice is breathy and he can feel Mirio’s cock throb against his own. Mirio removes the first finger and lubes himself up again, now carefully rotating two fingers around the outside of Tamaki’s hole. He slowly slips both fingers in, Tamaki choking out a moan. The hand holding Tama’s ass cheek clenches the flesh a little harder as Tamaki begins to grind his hips down. Mirio is practically panting, both boys know that it won’t be long now before they have what they really want.
Mirio starts to scissor his fingers slowly, loosening the ring of muscle even more. Mirio probably does more preparation than is actually needed, he always just want to make sure that Tamaki has no discomfort when he actually enters him.
“Mirio, I-I’m… I’m r-ready…” Tamaki lets out another small moan, tightening his fists in Mirio’s hair. “Mirio p-please…”
Mirio needs no more encouragement and yanks down his pants and underwear, using his muscular thighs to kick them off and across the room. Before he lowers Tama back into his lap he crashes their lips together, the smaller man kissing back just as urgently now. Ever the safe boy, Mirio grasps blindly for the condom next to him on the bed as their mouths dance, pausing the kiss long enough to rip it open with his teeth. He rolls it onto his dick, inhaling sharply at the touch. But then instead of letting Tamaki lower his hips and wrap around him, Mirio shifts. He moves so that he’s laying on the bed, Tamaki still in his lap, and looking up at the man.
Tamaki immediately feels self conscious, moving to cover himself, but Mirio takes that opportunity to pull Tamaki down onto his dick. Both boys let out loud groans as Mirio fully seats himself inside Tamaki, and they both stop moving for a few beats. Tamaki can never fully fathom how full he feels with Mirio inside of him, and he’s always impressed with himself that he can take his hulking boyfriend like this.
“Nngh, damn, Tama…” Tamaki’s head is lolled back, his eyes staring blankly at the ceiling. “You’re always so tight… I’m… I’m gonna move now, okay?” Tamaki can hear the strain of control in Mirio’s voice, and he knows the blonde is dying to thrust up into him.
“Yes Mir, god yes,” he whispers.
Mirio starts slow, and Tamaki’s head slowly pulls back down from the clouds and is more into the moment. That’s when he realizes that he’s more or less on display for Mirio, and his face immediately flushes. Despite the fact that Mirio’s hips are snapping into him he starts to reach for the lamp that is lit on Mirio’s night stand, the only light as the sun has more or less gone down.
“Tama, Tama don’t.” Tamaki pauses, his eyes flicking to Mirio, who is giving him a smile so full of adoration that Tama feels his chest contract. “I want to be able to see you, you’re so handsome.”
The word hits him like a freight train. Handsome. He’d never been called that before and he moans as his body tenses, causing Mirio to stutter out a moan as Tamaki’s hole clenches tightly around him.
“Ahhh, there it is,” Mirio chokes out a small laugh as he keeps thrusting up into Tamaki. “There’s the response I wanted. I think we’ve found your nickname, nngh, handsome.” Tamaki can’t help the moan he lets out, the way Mirio saying the word driving heat right to his core. Mirio’s fingertips are grabbing his hips, holding him still so he can thrust up. “Touch yourself for me, handsome. I wanna see you come undone.”
Tamaki, normally, wouldn’t be able to bring himself to do this. To touch himself so intimately with Mirio’s eyes on him. But he’s floating so high that his arm moves without thinking, hand wrapping around his own cock, and lightly flicking his wrist up and down. Mirio curses again and picks up the speed, his intense blue eyes locked on his boyfriend.
“Tama, Tama I’m gonna…” Mirio groans, trying to compose himself, “Tama, handsome, cum with me.”
Tamaki clenches around Mirio’s length again at the nickname, his fist tightening as he moans and releases all over Mirio’s chest. The tightening of his hole is more than Mirio can take and his hips snap up one last time, filling the condom. Tamaki falls forward, barely catching himself before he just faceplants into Mirio’s chest, pressing their foreheads together.
“I… I love you, bunny.”
Mirio smiles and slides his hand off the bed, rustling around for something. Tamaki leans up when he feels the blonde moving under him, his eyes widening in shock.
Mirio is wearing a pair of costume bunny ears and a huge grin. “I love you too, handsome.”
Tamaki stares at Mirio in shock for a second, then starts to laugh. It’s a small, quiet laugh until Mirio joins in, and Tamaki slips from Mirio’s lap and curls up to his side. Mirio cleans himself up with his shirt and tosses the condom in the trash. He wraps his strong arms around Tama, peppering his indigo hair with soft kisses. “I love you so, so much.”
Tama hums contentedly and wraps his arm around Mirio too.