In the throes of a typical sibling squabble, Michelle and her stepbrother find themselves alone and horny. Michelle retreats to the bathroom, her fingers exploring her wet pussy and round ass. Caught mid-act by her brother, she's mortified but intrigued by his throbbing erection. They decide to masturbate openly, Michelle's eyes widening at the sight of his thick, straight cock. As they're about to cross the line, someone interrupts, leaving them breathless with anticipation.