Big Bang Theory Quote
(after Penny lets Sheldon stay over when he locks himself out of his apartment)
Leonard: What were you doing at Penny's?
Sheldon: Well, we had dinner, uh, played some games, and then I spent the night. Oh, you'll be happy to know that I now have a *much* better understanding of "friends with benefits."
Quote from S02E21 - The Vegas Renormalization