Mal: She’s a nice girl.
Book: Seems very anxious to please you.
Mal: Well, that’s their way, I guess.
Book: I suppose so… If you take sexual advantage of her, you’re going to burn in a very special level of hell. A level they reserve for child molesters and people who talk at the theater.
Mal: What — I am not… preacher, you got a smutty mind!
Book: Perhaps I spoke out of turn.
Mal: You may perhaps I’m thinking!
Book: I apologize. I’ll make her up a room in the passenger dorm.
(Book leaves, then pops his head back in a moment later.)
Book: The special hell.
Firefly — Episode 6 — “Our Mrs. Reynolds”