He concentrates on splashing cold water on his face. It's another simple thing that improves his physical wellbeing more than he thought it would. The other is Kaworu's joy. Catching sight of himself in the mirror, he attempts to calm his bedhead--fails--exits the bathroom, drawn by the abrupt stop of Kaworu's laughter.

Faint concern turns into a dubious look when Kaworu produces another stray condom. He now has to wonder if Johnny Lawrence planted the condoms like a scavenger hunt, or if they more innocently fell out of their package and were strewn around the room. Surely just hurling them into someone's bed is too irresponsible. He hopes Shinji-kun doesn't discover any of them.

He knows Paul's slyness. It's adjacent enough to be sultry, given the subject matter, but Midoriya's on guard now. Paul won't get him a second time if he can help it. (He still can't help another tinge on his freckles, but he refuses to avoid those green eyes with his own.) He has another thought, knowledge that must be imparted, now that he has a closer look at the slimy transparent wobbling thing in Kaworu's hand. He strides (gamely, he thinks) over and prods it.

"Maybe not a banana. This needs something huge, like an eggplant. Since you know so much, Paul-kun, I don't need to tell you this won't actually be useful, since Lawrence-sensei got the wrong size."