In this episode, Gaby seeks Lee and Bob's support with her new tenant, suspecting that she is a sex worker. She wants one of them to catch her in the act, and insinuates that Bob is the more believable choice as a "straight man" (and that Lee definitely isn't). In real life, the actor who plays Bob is gay and the actor who plays Lee is straight.
Felicity Huffman (Lynette Scavo) & Justine Bateman (Ellie Leonard) also worked together on Out of Order (2003) as Lorna Colm & Annie respectively.