It's kind of grossly adorable, the way his smile widens - in a way it doesn't too frequently either, mind - once he sees her reaction. Not that he was expecting her to jerk her hand away, but the warmth of her fingers curling around his makes him feel warm, too. He tugs right back.

"Yes, ma'am," he says, giving her a small salute with his free hand.

The movie they will be watching is Guardians of the Galaxy, just in case audiences at home were wondering.