My wife likes some spanking/ass slapping but only when she is fucked doggy style. She doesn't want a lite slap either, slap her like you fuck her good and hard. But she is not into the bend over and spank thing. I have spanked her a few times doing some role play but not often.
Well for the critics, if you can't tell, Ms. Knightley really go in to the role. And 'got off' on having it recorded for anyone you wants to watch it, over and over