Max plays a step-brother suffering from an injured groin, and I play his step-sister, who is a physical therapist by trade. These two siblings have an extremely believable rapport with each other-- teasing, insulting, and dismissive: but ultimately, caring. She insists that he needs her help, and as she gives the area more and more attention, he naturally starts to get hard. The progression towards sexual play is amazingly realistic, evolving with teases, innuendo, and disbelief. But you still see a lot of action as they fuck in multiple positions, trying to make it all happen before step-Mom and step-Dad get home.