The Larry Sanders Show, Season 5

[Stevie is raving about promoting an episode where Ellen DeGeneres comes out as a lesbian]

Larry:
All right, look, you know, I think we're avoiding one little question here: what if she's not a lesbian? Did you guys ever think of that?

Stevie:
Oh, man, I- she's a lesbian, I can tell, right? I've had sex with a lesbian.

Artie:
So you had sex with a lesbian. You gotta have sex with two lesbians, that's the whole point.