Penny: You want to talk about crazy mothers, Leonard's mom wouldn't give him any sort of approval growing up.
Priya: Oh, the poor thing.
Penny: It makes him desperate to please women. That's why the foreplay goes on and on.
Priya: It does, doesn't it?
Penny: It's like he's trying to win a prize. A word of advice, don't doze off. You will never hear the end of it.