Determined to help classmate Elsa lose her virginity, Jenna asks her sexually experienced stepbrother Chad for assistance. Eager to take his BDSM relationship with his stepsister Marley to the next level, Tommy asks her to invite a friend over to join in on the fun. Karla lures her stepbrother Chad into a threesome with her best friend in order to play matchmaker for the two. Karmen's obsession with her stepbrother Anthony reaches a breaking point when her friend Samantha hatches a seductive and twisted plan.