Joey: Hey, hey, hey, hey. None of that. Not while you're living under my roof.
Monica: What?
Joey: Look, just because I know about you two doesn't mean I like looking at it.
Chandler: Aren't you supposed to be at an audition for an hour?
Joey: Well, I'm sorry if I'm not a middle-aged black woman. And I'm also sorry if sometimes I go to the wrong audition. Okay, look. If I have pretend to not know about you two, then you two are going to have to pretend there's nothing to know about it.
Monica: Okay. Sorry.
Chandler: Sorry.
[After Joey goes into his bedroom, Monica and Chandler start kissing]
Joey: I can hear that!
Monica: Rachel's at work. [Chandler and Monica leave]
Joey: I can still hear you!