A horny teen stepdaughter, left home alone, invites her friend over for some fun. They start making out, and things quickly escalate to heavy petting. Meanwhile, her army stepbrother returns home early, catching them in the act. Instead of getting mad, he joins in, much to the teen's delight. They engage in a passionate threesome, but when the stepbrother's condom breaks, they're forced to confront the potential consequences of their raw, unprotected encounter.