Was watching Unfriendly Skies from season one yesterday. Listening to Grissom and Sara talking about their sources for the mile high club theory, my sis TruKeh and I came to the conclusion that Grissom had more than one source and choose the one that he could live with Sara knowing about. LOL

So here's the challenge: Grissom tells Catherine about his conversation with Sara about the mile high club and she laughs at his response. Both then think back to their own initiation to the club, both glad he didn't tell Sara about that!