He knows they're both a mess, and he's not even daring to look down right about now. He's happy knowing that he was able to get Yu off, he definitely would have felt a little bad if he couldn't return the favor. He gently rubs the other's back, letting him lean against him all he wants.

"I'm...definitely going to need a nap after this." He feels tired, and unfortunately all he can think about is lying down with Yu and falling asleep, but they have a little clean up to do before that.