Reiko (Reiko Sawamura) was so turned on that she lost control and pushed her son down when she heard the moans of her neighbor in her son's room. Excited by the lewd voice, Reiko masturbated on the spot. But she still wanted a dick... Just as she thought this, her eyes fell on her son's crotch, who had also become erect upon hearing the neighbor's voice. At the sight of it, Reiko became a sexual beast.