Really, Tsukishima should know by now that Kuroo is often embarrassing, and Tsukishima can say whatever he likes and never come close to Kuroo's level.

Tsukishima's fingers in his hair feels nice, makes this more real and solid, helps Kuroo remember that he's got him here. Kuroo keeps the kiss going as long as he can, but eventually he realises that he does have to breathe, and it's much harder to do that with his tongue in Tsukishima's mouth, he draws back, but ducks in to give another, more chaste, kiss to the corner of his mouth, before moving further along to Tsukishima's jaw, then his neck.