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"What's wrong with you?" came Tetsuro's sleepy voice straight from under his pillow, after yet another snort from his boyfriend.
"Nothing." he wants to sound cold and neutral, just sounds sullen.
One arm wraps around him tightly, drawing him against the solid body.
Kuroo's rooster head, now free of his 'night shield' is close to his own, tickling him with his hair as the rough voice and warm breath reach his ear, sending shivers everywhere.
"Tsukki..." he scolds.
"Don't call me...!" but the protest is interrupted midway by another hot breath.
"Kei, what's wrong?"
"I can't sleep."
"That's something I can help for..." the voice, it's increasingly hoarse, but it's also tinged with a bit of mischief, the hand resting on his heart reaches down to find the hem of the t-shirt Tsukishima sleeps in, before climbing back up his bare trunk and stopping to tweak a nipple as he blows at his ear again.
Tsukishima's body tenses like a violin string, before melting completely into his partner's arms.
He arches up, his bottom juts back, pressing against Kuroo's erection, his neck stretches, exposing himself to kisses and bites, and Tetsuro doesn't let him beg: kissing, biting, caressing every part of his body, going along with his every movement, as if in a perfectly rehearsed dance.
"Tetsu..." moans excited and frustrated.
He wants more and Tetsuro has no intention of making him wait, not tonight.
He reaches down with one hand between their bodies, caressing the firm bottom, Kami! He will never stop loving this habit of her boyfriend's of sleeping with only a too-long shirt and no underwear!
He goes further with a finger and... "Fuck! Kei you want me die!"
"I couldn't sleep." he replies again, the mocking voice would work better if he wasn't panting heavily.
Kuroo throws his head back laughing, a hoarse, guttural laugh, not his usual hyena laugh.
He returns with his lips to her neck, kisses, licks, bites every sensitive spot, goes up to her earlobe and back, while his hand torments the toy between Kei's legs, moving it with exasperating slowness.
It is only when a pleading moan comes out of his mouth, almost a meow, absolutely unaccountable to anyone else who knows him, that Kuroo grabs the plug and pulls it out to replace it with his own member.
He would like to continue moving gently, in that slow torture of pleasure, but it is becoming too much for both of them, so he lets himself go completely with deep, steady strokes, a relentless rhythm in search of orgasm.
When they collapse exhausted, still in a tangle of limbs, Tsukishima has a smile on his lips, his breathing heavy and his eyes half-lidded.
"Good night Tsukki, happy birthday."
He doesn't answer, already half in dreamland.
The reason he couldn't sleep, momentarily out of his thoughts.
It's 27 September 2022, he's officially passed the quarter-century mark, but in Tetsuro's arms, it doesn't seem like such a big deal anymore.