I've heard from a few people that they didn't like the last "Weeds" episode because they felt that Esteban raped Nancy. Personally, I don't think that's what was intended. They established that he was into spanking, etc., and Nancy seemed intrigued by that to me. They also alluded to "rough" self-sex when Kevin Nealon got rope burns from his auto-erotic asphyxiation. (Well timed, considering David Carradine's demise.)
I just figured that Nancy is turned on by danger. How did you read it?