ER, Season 13

Pratt:
When [pauses] did you know you were gay?

Weaver:
Are you coming out to me, Greg?

Pratt:
No, no, no, no. I came home and found my brother with another guy.

Weaver:
Really?

Pratt:
Yeah. He says he's just experimenting, that it's only a phase.

Weaver:
And what do you think?

Pratt:
I don't know. Can a straight guy go through a gay phase?

Weaver:
I think it's more likely that he's gay. Hey, and he's telling you what he thinks you want to hear.