Sasuke's laugh is a fucking cackle, but it's also completely sane.

It also genuinely sounds like real mirth. What's that? Is that - Sasuke having fun?

Surprise!

He is still laughing, though it's lighter and easier than that initial burst completely at Naruto's expense, as he turns those elbows easily with his forearms, backing away light on his feet. It does back him into the lapping of the waves, putting him in up to his ankles, and he knows he's not gonna keep his balance forever. He finds he doesn't mind, tussling easily arm to arm and hand to hand without putting a single bit of vitriol into it.

"Originally it was gonna be to get the mud off. Then I just thought it'd be funny."