Bored siblings Michelle and her stepbrother, unsupervised one afternoon, find themselves drawn to the forbidden. Michelle retreats to the bathroom, fingers exploring her wetness, her other hand squeezing her ample ass. Her brother, overhearing her muffled moans, bursts in, catching her in the act. A heated argument ensues, but cooler heads prevail as they decide to explore their mutual attraction openly. Naked, they masturbate in front of each other, Michelle's eyes locked on her brother's huge, throbbing cock. Just as they're about to give in to their taboo desires, an intruder forces them to abort their heated encounter.