Ross Geller: Stop humping. Now, Marcel, come… Come here, Marcel.

Rachel Green: Oh, no. Not in my room. I’ll get him.

Monica Geller: You’ve got to do something about the humping.

Ross Geller: What? It’s just a phase.

Chandler Bing: Well, that’s what we said about Joey.

From Friends – Season 1 Episode 21: ‘The One with the Fake Monica’ (1×21)