Sia Lust and her stepbrother, Nathan Bronson, have gotten together in the past. Their fuck fest was supposed to be a secret, but Sia couldn't stop herself from sharing with her best friend, Lily Larimar. When Nathan drops into Sia's room to deliver her cell phone that she left lying around, Sia gives him a hug. Lily picks up on how awkward they are and asks if it's because they boned down. Nathan and Sia are unhappy with Lily for talking about it, but Lily stays the course. She claims that it's national brothers day and they should therefore get together again so Sia can prove how much she appreciates Nathan being her stepbrother.