The detail of the structural integrity of Leo's shell has slipped Donnie's mind for the moment, so it's probably good that the water's doing sneaky things.

Oh, but it feels good to laugh, and to not think about anything else but what's in the moment. He's missed this, and even if the wet just makes things feel a bit gross he forces himself to put up with it as he leans against his brother, relaxing with a sigh once his snickers have worked themselves out. Well, mostly. It's impossible to stop completely when Leo's still giggling.

"Truce," he agrees.