Quote from Chandler in The One with Phoebe's Birthday Dinner
Monica: Sex. This is the last day I'm ovulating. If we don't do it now, we're gonna have to wait until next month. Chandler: You're serious? Monica: Oh, yeah. Chandler: All right, fine. I'll do it, but no talking. Monica: And no cuddling. Chandler: And no kissing your neck. Monica: Oh, good. I hate it when you do that. Chandler: And lots of kissing your neck.