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Karamatsu arches one of his thick eyebrows, bemused by the sight in front of him.
“Again?” he asks, scanning the bruises and blood covering his older brother's face.
“Again,” Osomatsu says with a huff, wincing afterwards because even that small muscle movement sends sharp pain to the rest of his swollen face. “Man, she really did hit hard this time. Feels like my head's splitting in half...”
“You probably deserved it,” Karamatsu says with no sympathy. “No, you definitely deserved it. Don't you know better than pissing Totoko-chan off by now?” His usually complicated vocabulary always takes a backseat when Osomatsu is involved. “What have you done to her this time?”
“N-Nothing! Just... peered a bit when a gust of wind lifted her skirt.”
“... You perverted bastard.”
“Hey! You would have done the same if you were there!” Osomatsu points an accusatory finger at him. “Karamatsu, your innocent and painful act won't work on me! Deep down you really are a Shittymatsu who'd look under a girl's skirt given the occasion! Oniichan knows his little brothers like he knows every detail of his own crotch by now! All of you are different degrees of Shittymatsu, but you're the worst and it makes Oniichan sad!”
“If I am a Shittymatsu, you're number two. No, actually, you're number one. The worst guilty guy in this family.” Sighing, the second eldest grabs Osomatsu by his red hoodie and pulls roughly, starting to walk through the path that leads upstairs. “Come on, let's get you patched up. I don't care if you get an infection but I can't see you like this.”
“Aww... you actually worry about my health, Karamachu~! You do love Oniichan after al- ow ow ow stop that you idiot!” Osomatsu whines as Karamatsu halts by their shared bedroom and pinches his bruised cheek. “What's that for?!”
“You're saying too many unnecessary things.” The tinge of pink dusting Karamatsu's cheeks is proof that Osomatsu is striking an odd nerve. The eldest of the two grins, obediently sitting on the floor when instructed to. “Wait here a minute.”
Karamatsu reaches for the upper shelves to find the first aid kit laying there. They have one pretty much in every room since it's not a weird occurrence for at least one of them to get injured at least once a day under various circumstances. He kneels on the carpet floor facing Osomatsu, sets the kit next to himself, and opens it to reveal bandages and other medical tools.
“Stay still,” he says quietly, like Osomatsu hadn't heard it several times before. Some things won't change no matter how their personalities morph and develop every single day. Osomatsu is content of that fact.
The sensation of skilled fingers working to take care of his face is pleasant, though it still hurts like a bitch to have disinfectant soaked against an open wound. Closing his eyes, Osomatsu merely focuses on Karamatsu's hands touching him. He winces and lets out a little growl once in a while, but it's not a terrible kind of hurt with Karamatsu because his little brother grew to have an expert level skill when it concerns patching people up. Osomatsu knows it's because of how much the other man gets hurt from the abuse his brothers inflict towards him on a regular basis and the many times he had to treat his own injuries by himself. A pang of guilt sits inside Osomatsu's chest for the next minutes.
“What's wrong?” Karamatsu asks suddenly. “Am I causing too much pain? You're frowning deeply.”
“Huh? Well, it's supposed to hurt!” Osomatsu rescues a grin, despite how doing that is like planting needles into his face. “Oniichan ain't weak like the rest of you! Just keep going and shut u- ow, ow! Careful!”
Karamatsu chuckles, pulling his hand away after pressing a patch over Osomatsu's cheek with a little too much strength. “Sorry, my hand slipped. What were you saying about me being weaker than you?”
“Tch. My little brother ain't cute at all.” Osomatsu grumbles, looking away.
“You're not cute, either.” Karamatsu retorts, picking up another band aid.
They sit in general silence until the treatment is finished. Karamatsu closes the first aid kit and leans back. “All done.”
“Finally! My back's all stiff!” Osomatsu stretches his arms and yawns. “I'm taking a nap.”
“Hey,” Karamatsu intercepts. “Don't get in trouble like this again. Remember that Totoko-chan doesn't have gentle hands like most girls. She might straight up murder you someday.”
“... I know. You don't have to say that.” Osomatsu pouts, unmoving when his brother scoots closer and wraps an arm around him, lips already pressing against an uninjured spot on his forehead. He fights back the heat prickling his cheeks. “What, are you jealous that I'm gonna take her away from you losers someday? Cuz it's gonna happen, whether you like it or not!”
“That's not what I mean.”
The kisses laid on his face sting lightly, pumping adrenaline into his body.
He knows that Karamatsu is jealous for a whole different reason.
Groaning in pain and embarrassment, he lets himself sit on Karamatsu's lap, loosely wrapping his arms around his brother's frame. He hums softly once Karamatsu mouths at his neck, touching the spots he knows would make Osomatsu's toes curl from how sensitive they are. Foreseeing what is about to happen next, he pulls away from those pleasant kisses and cups Karamatsu's face.
“Stop that, I really am sleepy.”
Osomatsu kisses his brother, gentle strokes of lips that quickly become lashes of tongue on each other, looping and disgustingly emitting spit over their chins. The eldest of the two is the first to pull away, wiping his own chin and chuckling at the flustered expression on Karamatsu's face. He's more attractive like this than those moments when he tries too hard.
“Lemme rest a little, then you can do whatever you want to me.”
Karamatsu inhales sharply, and nods. They cling on each other for a while longer before Osomatsu feels himself getting swept off the ground and carried towards the green sofa. He sighs contently, resting his pained head on the pillow Karamatsu has provided him, and curling himself against Karamatsu's chest once the other body joins him within the little space available and wraps him in a protective embrace. Just as Osomatsu wanted.