Quote from Janice in The One Where Rachel Has a Baby (Part 2)
Chandler: Janice, I didn't even know you were pregnant. Who's the unwitting human whose essence you've stolen? Janice: It's you. This is yours. Chandler: What? Janice: Ha, look how nervous he gets. We haven't slept together in years. [laughs] Chandler: That's funny. Does it hurt? Does the labor hurt?