Ross: But see, I happen to have a girlfriend.
Isaac: Right. That Rachel chick from the coffee place.
Ross: That's the one. Listen, I don't want to hurt her.
Isaac: Oh, I know. It doesn't matter how much we love them. Monogamy is too cruel a rule.
Ross: Listen, can you keep this information to yourself?
Isaac: No problem. We gotta look out for each other. We're the same, you and me.
Ross: Actually, no, we're not.
Isaac: Yeah, we are.
Ross: No, we're not.
Isaac: Yeah, we are.
Ross: No, we're not.
Isaac: Okay, we're not.
Ross: Right.
Isaac: But we are.
Ross: Fine. I just need to know that you're not going to tell your sister.