They're all on the rooftop during lunch period. Kise is really grateful for Akashi sometimes; if he hadn't intimidated the rest of the school off the roof, Kise'd still be swamped by people everywhere he went. Today, he and Aomine are lounging a little apart from everyone else.
"Hey, gimme your hand." Aomine holds out his left hand with an odd look on his face, like he's swallowed water down the wrong pipes. Kise, despite himself, is instantly suspicious.
"For what?" Kise clasps his hands behind his back. Maybe he's just being paranoid, but he's been on the receiving end of too many Aomine Pranks to take anything at face value now. And who just sticks their hand out when asked to (except maybe Murasakibara but he's sort of a special case)? There's always a catch. Like a frog. Or one of those things that zaps your hand. Those really hurt.
"C'mon, give it here."
"But—"
"Kise-kun," Kuroko says, not turning away from his stare-down with Akashi (and what is that about, Kise wonders, they've been going at it every lunch period for a week), "you should just listen to Aomine-kun. He can be extremely persistent."
Yeah, Kise knows that. He looks at Aomine's hand reluctantly. Aomine wiggles his fingers.
"Aominecchi, you'd better not do anything weird," Kise grumbles, placing his hand in Aomine's palm. Aomine gets a look in his eyes, and before Kise can pull back he curls his fingers around Kise's hand and yanks him into his lap.
"Depends what you mean by weird," Aomine grins, their fingers now entwined. Kise's face is mashed into Aomine's chest and he can feel Akashi's amused tolerance, can feel Momoi trying not to burst into laughter, can feel everyone staring and yeah, he's not going to move, he's just going to sprawl out on top of Aomine and blush until he dies.
"You okay?" The question is a low whisper, meant just for him. Kise can't help the upturning of his lips, the tightening of his fingers on Aomine's warm hand.
"Yeah," he mumbles, "of course, shut up."