Season 6, Episode 11: "The Switch"

All right. Let's go over it again one more time.

All right. So I tell Sandi that I wanna have a ménage à trois...

-...with her and her roommate. -That's right.

And you believe this course of action will have a two-pronged effect.

Firstly, the very mention of the idea will cause Sandi to recoil in disgust.

Whereupon, she will insist that I remove myself from the premises.

-Keep going. -At this point, it is inevitable...

...that she will seek out the roommate...