In the steaming bathroom, stepsiblings Michelle and her brother find themselves alone and aroused. Michelle, fingering her wet pussy, thinks she's discreet, but her brother bursts in, catching her mid-act. Tempers flare, but later, they confess their desires. Naked and throbbing, Michelle watches her brother stroke his massive cock. Their mutual lust intensifies until someone's unexpected arrival forces them to halt their forbidden dalliance.