"Ow," he says, because what else does she expect? They've got this routine down pat by now.

And then he pulls an exaggerated sadface, flicking a finger against her back (the closest he'll come to smacking her, there's no way he's going to even think about physically fighting with Plourr) and looking put out.

"Oh, that's nice. I could probably use that as grounds for divorce." An arm still snuggled over her hips should take any sting out of the words.