[Laughing more even with the smack, giving him a wink when he dips in to kiss him lightly, Oikawa pulls his own towel down to tie it around his hips and reach to press a steadying grip to Iwaizumi's side.]

I love seeing the mess I've made of you, Iwa-chan. [He knows what Iwaizumi is talking about though, he knows how embarrassed he is about being caught just after having sex. What a cute guy, upholding his pure reputation.] But yeah, I don't really want to share that sight with anyone else.

[With another smooch, Oikawa starts leading them for the door - they're luckily going to be alone in their walk to the bathroom, and the locker room is good and empty.]