In the soft glow of the nightlight, Matt's fingers dance over his keyboard, his other hand working his throbbing member. His mind's eye is filled with the image of his step-sister, sleeping innocently nearby. He can't help but imagine her feet, so small and delicate, as he strokes himself. His breathing grows ragged, his grip tightens, and with a final, low grunt, he releases, painting her feet with his hot, sticky cum. The room is filled with the scent of sex and the soft sound of his sister's peaceful breathing.