"Nothin'!" Jim shouts back, closing his eyes as Bones' clever hand guides him back into rhythm with only a touch. For once, he's not out to prove anything, except maybe that his lungs can still hold a full breath of air, that his heart can still race with something more than grief, that there's still light in the world, even if that world is only a fishbowl.

Jim slings an arm around Bones' neck and keeps him close, laughing a little as the music picks up. "Blank check, Bones. Just dance."