Given time and adequate reassurance that she's laughing with him and not at him...shit, if you're not having fun you're doing something wrong, right? But for now just joking around is progress enough. He's overwhelmingly relieved that things haven't gotten weird between them, but not quite ready to push any further.

He lifts his chin a little, drawing himself up as best he can, which given his position, is not actually that much.

"Do I?"