Cramped in a closet, two devout sisters maintain their virtue by remaining semi-clothed. As they rub against each other, religious guilt gives way to taboo lust. Michelle guides her brother's virgin cock inside her, and they begin to move. Their father's voice echoes, commanding them not to move, but their innate lubrication and overwhelming desire drive them to a shameful, intense climax, leaving them to collapse in post-coital remorse amidst smeared juices and spent fluids, praying for absolution.