Satsuki, who had been living alone for a long time, ended up living with her daughter and son-in-law. The couple was quite active at night. Satsuki couldn't help but peek. Her son-in-law's hip movements made her body hot and her crotch wet. One day after his daughter left, Satsuki found her son-in-law napping in the living room. Remembering what she had seen of her daughter and son-in-law's nighttime activities, she instinctively reached for her crotch. The son-in-law woke up, but Satsuki was too engrossed in masturbating to notice. She stopped abruptly when she heard his voice and covered herself. After a moment of silence between them, Satsuki pleaded, "Just once is fine. Hold me. Please."
