Tony Profane, a lustful stepbrother, bursts into the bathroom, catching Kimmy Granger, his brunette stepsister, masturbating. Their attraction palpable, they resist at first, but Kimmy can't help but show off her gorgeous body. Tony's massive cock tents his pants, and Kimmy, intrigued, licks her lips. They strip, and Kimmy takes Tony's thick dick in her hand, imagining it inside her. Just as they're about to fuck, a noise startles them, leaving their taboo encounter unfinished.