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This was not how Atsumu expected his short trip home to go. Osamu had promised to pick Atsumu up from the airport, but just as Atsumu landed, he texted him to tell him he was caught up with work or something and couldn’t get him, so Atsumu had to take the subway to Osamu’s apartment.
The subway carriage hadn’t been full when he got on, actually, it was almost empty, and he managed to find a seat where he could spread his tired legs out, but it seemed every stop a horde of people piled on. Of course, he had to land during rush hour.
Atsumu had wanted to sit the entire ride, stubbornly looking at his phone so he didn’t see anyone in need. Of course, bad luck had to hit him, and a pregnant fan approached him and asked for a picture, and upon seeing her practically bursting belly, Atsumu had blurted out an offer for his seat, which she had happily taken. He wondered if the woman was even as big a fan as it seemed, or if she had just done it to get the seat, but he didn’t have time to think on it much when another crowd piled on, and Atsumu ended up halfway down the carriage.
It was there that Atsumu spotted someone standing, leaving an empty seat behind. He bee-lined for the space, no care for who he accidentally nudged. But, just as he reached it, a familiar face slid into the spot.
Osamu Miya, still in his work clothes, a plastic Onigiri Miya takeout bag in his hand, looking up at Atsumu with the biggest foxy grin that the blonde would almost say he missed, almost.
“Thought an athlete would be faster than a normal civilian.” Osamu’s voice floated to Atsumu’s ears like birdsong in the morning, refreshing his mind and soul.
“You’re no normal civilian, ‘Samu.” Atsumu’s voice did little to portray the relief he felt seeing his brother after so long apart, sharp at the edges and a glare on his face to accompany it.
Osamu chuckled and placed the bag between his feet, spreading out his legs ever so slightly. Atsumu gulped at the action, his eyes flickering down for a fraction of a second, enough time for it to look an innocent gesture.
“You can sit if ya’d like.” His twin patted his large thighs; they almost looked like they’d burst from his work pants. Atsumu sometimes wondered why Osamu bothered to keep up with his excessive workout routine if he wasn’t going to play volleyball anymore, but he also found he enjoyed the sight.
“I’d squish ya’” Atsumu squinted at his brother, crossing his arms over his chest. Osamu hummed, mimicking the action.
“I can take it.”
So, Atsumu, never one to back down from a challenge, inched forward, testing Osamu’s reaction. His brother looked indifferent, even when Atsumu planted a hand on his meaty thigh to stabilise himself before lowering himself down onto the limb. Osamu’s hand wrapped around his twin’s waist, holding him steady. Atsumu flushed, gripping his suitcase with a force that made his knuckles turn white.
His other hand rested on Atsumu’s own thigh, rocking a shiver through the blonde’s body that he hoped no one else would notice. His mind drifted, wondering what the supposed fan from earlier would think of the display, if they’d take a secret picture, send it to a newspaper and have rumours surrounding the brothers' relationship twittering through the air by the morning. Atsumu was quickly taken out of his thoughts when a hand squeezed his thigh.
“I waited long enough to see ya’ least you could do is pay attention to me.” Osamu himself had the smallest pink tinting his cheeks when Atsumu looked down at him. His twin was always easier at hiding how he felt, but seeing that he had some effect on him made Atsumu swell with pride.
“Missed you too, ‘Samu.” Atsumu grinned, teasingly. Osamu squeezed his waist.
“Didn’t miss your heavy ass.” Osamu didn’t give any warning before shifting Atsumu, moving him as if he weighed the same as a piece of paper. Heavy ass, yeah right.
Atsumu gripped his suitcase, pulling it closer until it hit Osamu’s legs, which had locked Atsumu’s above his, their calves intertwined. Atsumu’s thighs were spread apart, putting him on display like a piece of meat. Speaking of meat, Atsumu could feel Osamu’s prodding at his ass.
Osamu’s hands were wrapped around his waist, fiddling with the waistband of his shorts. Atsumu hadn’t changed after practice in the morning, in a rush to get the flight home to see Osamu. He could always use his brother's shower.
“I’m hosing you down when we get home,” Osamu grumbled in Atsumu’s ear, though the blonde could feel the younger twin sniffing at him like a dog. Osamu always liked how Atsumu smelled after a workout, especially a long game.
“You don’t smell too peachy yourself.” Atsumu lied, his brother smelt like he’d spent the entire day in the kitchen, all the assortments of foods he prepared sticking to him. It made Atsumu’s stomach rumble with want, his mouth fill with saliva.
Osamu hummed under him and didn’t speak again for a few minutes. Atsumu could almost enjoy a peaceful ride home, pointedly ignoring how every jostle of the carriage made him bounce on his twin's lap, and his erection, which had started taking effect on Atsumu himself, too.
His brother always liked to have his hands on Atsumu, though he’d never actually admit to needing the physical contact. Atsumu was more than happy to provide it; he loved having Osamu’s hands on him, it made him feel grounded, safe. Until two stops away from their own, one of Osamu’s hands snaked down into Atsumu’s boxers and started twirling fingers in his pubes.
Atsumu sucked in a breath. The suitcase did enough to block the sight of those sitting opposite him, but since the pair sat down, even more people had crowded around them, and if one of the businessmen decided to look up from their phone, it was too obvious that Osamu’s hand was down his pants, in a public space, for all eyes to see. A career-ruining moment. Yet, Atsumu’s cock filled out more.
Slowly, Osamu’s hand lowered, and lowered, until it delicately wrapped around Atsumu’s cock. He tensed, moved his free hand down to dig his nails into Osamu’s thighs. His twin chuckled lowly in his ear and started moving his hand up and down his length.
Atsumu wasn’t exactly known for being quiet. Sure, he had his moments; he was capable of it, but it wasn’t his default. Especially during sex, which his twin knew better than anyone. By the time they reached the next stop, and thankfully, more people left the carriage than entered, his lips were swollen from biting down, and his cheeks were a deep red from holding his breath.
Osamu’s free hand reached under Atsumu’s shirt, holding his waist in a tight grip. His hand was cold, and Atsumu inhaled a sharp, shaky breath. He looked around, head snapping side to side, to see if anyone had heard him. Everyone was too focused on their phones to even glance at the pair.
The hand moved faster, and Atsumu bucked up into it in small movements. He was close, the thrill of what they were doing turning him on in ways he hadn’t expected something like this to. But, just as Atsumu was about to reach his peak, Osamu retracted his hand, and the train came to a stop.
Atsumu whimpered; his entire body shook. Osamu didn’t say anything, but he shifted them, pushing Atsumu into a stand and gathering the takeaway bag and Atsumu’s suitcase with the hand that had just been in his twin's pants. The other hand had stayed under Atsumu’s shirt and was all that kept Atsumu standing.
Osamu dragged him out of the carriage casually, as if they weren’t both very noticeably hard, as if there wasn’t a giant wet patch soaked into the front of Atsumu’s shorts from his pre-cum. As if they weren’t both flushed and panting, Atsumu clearly more out of it than his twin. Anyone who looked closely would be able to tell what the pair had been up to, and even in his dazed state, the phrase ‘career-ending’ floated through his mind.
At the very least, Osamu’s apartment was only a short walk away from the station, though it took significantly longer with each shaky step Atsumu took. When they reached his apartment, Osamu shoved the bags in without care and lifted Atsumu into his arms, the blonde gasping in shock.
He kicked the door shut behind him, taking his shoes off and kicking them to the side. Atsumu clung to his brother, hiding his head in his neck and taking in shaky sniffs of his scent. Osamu walked them, carefully, to his bedroom, and gently placed Atsumu on his bed.
Osamu moved back from the bed, quickly taking off his clothes, tossing them across the room before pouncing back onto Atsumu. He wasted no time in lifting the blonde’s hips and shimmying his pants off, freeing his still hard cock. Atsumu whined, bucking up when his twin ignored the sight, moving up his body and lifting his shirt. He shakily lifted himself, helping Osamu pull his shirt off.
“‘Samu please,” Atsumu whimpered, bringing a trembling hand up to try to pull Osamu’s hips down. His twin hummed, ignoring him as he leaned down, nosing at Atsumu’s neck.
He opened his mouth, breath fluttering against Atsumu’s skin, making him shiver. His tongue poked out, licking a stripe up his twin's neck. Atsumu whined.
“Can’t mark me this time.” He breathed out, though moved his neck to give Osamu better access.
“Don’t care.” Osamu nibbled his skin. Atsumu frowned, trying to push him away.
“I’m serious, got a’ interview on Saturday.” His voice was breathless.
“You’re here Saturday.” Osamu leant back, staring down at his twin.
“Online.” Atsumu rolled his eyes, “Tried getting out of it.”
“Whatever.” Osamu sighed. He leaned back down, moving to Atsumu’s chest. He nipped Atsumu’s pec harshly, glaring up at his twin. Atsumu whimpered again, writhing, trying to get away. Osamu nipped him again, holding him down, his harsh grip almost certain to leave bruises on Atsumu’s hips.
His twin moved, nosing at Atsumu’s arm, inhaling his sweaty scent as he dove into his armpit. The blonde twitched, ticklish. He hummed when he moved to the next pit, getting his fill. Atsumu could never really understand Osamu’s obsession with his smell; it had been a thing since they were sweaty, smelly teenagers, exploring their newfound urges.
Osamu moved down, nibbling as he went, stopping when he hovered over his twins' leaking cock. Atsumu shivered, Osamu’s panting breath delicately kissing his tip. Osamu looked up at him, sticking his tongue out, watching the anticipation grow in Atsumu’s eyes, and revelling in the way his twin groaned, disappointed, when Osamu retracted his tongue.
He moved down again, nibbling at Atsumu’s plush thighs, moving a hand off of his hips to squeeze at the flesh. Atsumu whined above him, bucking his hips up with need. Osamu grinned into the flesh.
“‘Samu, please.” He whined, high in his throat. He dragged a hand down, grabbing hold of Osamu’s hair. His brother roughly nipped at his thigh in response, which only made Atsumu grip his hair harder.
“Won’t let ya’ fuck me till next time I’m home.”
Osamu snorted into his skin, pulling back and sitting on his heels.
“You’d suffer more than me.” He hummed.
“Don’t act like ya’ weren’t beggin’ me ta’ come back.” Atsumu smirked down at his twin, “I was ‘sposed to go with Omi-kun to that event.”
“Don’t mention him,” Osamu growled, his eyes darkening. Atsumu giggled.
“So fuck me then, ‘Samu.”
Hands were on him in an instant, firmly grasping his hips. Osamu growled as he lifted them, and Atsumu instinctively lifted his legs to rest on his brother's shoulders. He squirmed when Osamu reached a finger down to his hole, and blindly grabbed towards the nightstand, searching for the lube he knew his twin always kept on standby.
He threw it towards Osamu, who smirked up at him as he squeezed a good amount onto his hand. Atsumu gasped when his finger finally entered. It had been too long since they’d felt each other like this. He closed his eyes, focusing on the sensation as Osamu started thrusting it in and out.
“So fucking pretty, ‘Tsumu.” Osamu mumbled, just loud enough for Atsumu to hear. He moaned, bucking up, and Osamu added a second finger.
“‘Samu, need ya.” Atsumu ground back on his twins fingers, blinking up at him. Osamu licked his lips, leaning back and removing his fingers. Atsumu twitched.
Osamu wasted no time in lining himself up, bending Atsumu’s legs up to his chest. He entered him slowly, groaning and throwing his head back. Atsumu gasped, hands grasping at Osamu’s shoulders as he felt his twin fill him up.
Their noses touched, nuzzling together as they panted, recycling each other's breath. Osamu bottomed out, capturing Atsumu’s lips when he did. Atsumu hummed sweetly, a hand moving to his hair to pull him impossibly closer. Osamu started thrusting.
Atsumu’s orgasm hit him suddenly, the sensation of his twin taking up all of his senses and overwhelming him. Osamu moaned into his mouth as Atsumu clenched tightly around him. The blonde trembled as Osamu fucked him through it, fucking him slow and deep. Osamu always liked taking his time.
He had missed this; they had both missed this. Atsumu loved volleyball, but there was nothing quite like having sex with his twin. Osamu knew every way to draw pleasure from him, everything he liked, and Atsumu knew the same for him—though thanks to being twins, they tended to have similar tastes, for the most part.
Osamu stared down at him, lips parted and wet, pants fanning onto Atsumu’s face. His hand clenched in Osamu’s hair, and he watched as his twin winced. His brother kissed him messily, biting his lip. He licked into his mouth hungrily, his thrusts becoming uncoordinated.
Atsumu pulled Osamu away by his hair, his twin growling at the action. He moved his hand round, cupping Osamu’s face. He moved his own hand down to Atsumu’s sensitive cock, matching the pace of his thrusts on it. A guttural moan was forced from the blonde, and he threw his head back onto Osamu’s pillow.
“Missed ya’, ‘Samu, so so much, fuck, missed ya’.” He babbled almost incoherently, pleasure overwhelming him.
“Missed ya’ so bad, ‘Tsumu.” Osamu whined, leaning into his neck. Atsumu could tell he was on the edge.
“Love ya’,” Atsumu repeated himself after, losing himself as Osamu squeezed his cock tighter.
Osamu came, biting down on Atsumu’s shoulder, muffling his moan. He thrusted deep, stilling as he pumped his cum into his brother's hole. The sensation made Atsumu follow, coming with a high pitched moan that echoed throughout the room. He felt his cum spurt between them, covering both of their stomachs.
Osamu collapsed against him, panting heavily. He brought his hand up from Atsumu’s cock, bringing it to tangle in his dyed hair. Atsumu leant into the touch, letting out a deep sigh.
“How long are ya’ stayin’ this time?” Osamu asked, his voice vibrating against Atsumu’s shoulder.
“A while, gotta few events but most of them I can stay here for.” Atsumu fiddled with Osamu’s hair as he spoke.
“Mr celebrity.” Osamu hummed, lifting himself up, just enough to hover over Atsumu’s face. He brought his other hand to his cheek, squeezing it gently, “Don’t know why ya’ don’t just move in with me, if ya’ miss me that bad.”
“I like my own space, ‘Samu” Atsumu grinned.
“Could at least live closer,” Osamu grumbled.
“Ya’ can’t tease me for missing ya’ when ya’ miss me more.” Atsumu squeezed his hair. Osamu glared at him, pinching his cheek roughly.
“Omi-kun’s a good roommate, ya’d just distract me.”
“So I’m a distraction?” Osamu leant down, biting his cheek, “And what’d I tell ya about that?”
“You can’t be jealous of Omi when ya’ just came in me.” Atsumu giggled, “I’d move in with ya’ if ya’ lived closer, ‘m not getting a plane to every match, shoulda’ thought about it when ya’ set up ya’ restaurant.”
“We agreed to have some space, didn’t know it’d be this hard.” Osamu kissed the corner of his mouth delicately.
Atsumu hummed, leaning his head to the side to meet his lips, smiling softly.
“You agreed, I told ya’ from the start.”