Reiko is depressed after her husband passes away. - Reiko's daughter and her husband suggested that they move in together. - Reiko and her daughter and her husband were satisfied with their life without any inconvenience. - Late at night, Reiko listens closely to the voices coming from her daughter and her husband's bedroom. - I secretly head to the bedroom and peek into the activities of my daughter and her husband. - Reiko began to comfort herself while watching the actions of her daughter and her husband who seemed to be feeling good. - Well, when Reiko first started living with her, she was like a girl who refrained from doing things at night, but ever since Reiko told her that she was starting to become a child, she started acting out frequently. - At first, Reiko was happy that her daughter and her husband were on such good terms, but Reiko couldn't help but masturbate repeatedly as she heard her daughter's moans of joy every day. - One day, my daughter told me she was going on a trip with a friend and we went. - The son-in-law's room was extremely quiet. - Reiko, who was intrigued by the fact that her son-in-law was acting out every day, secretly checked on him and found that he was masturbating. - In order to seize this chance, Reiko opened the door with force, approached her flustered son-in-law, and quietly sat down next to him. - I then told him that I didn't think my daughter was satisfied with what she was doing with her son-in-law, so she took him by the hand and suggested that she practice with me. - The son-in-law is confused by the events. - Reiko, who was already in heat, started massaging her breasts and openly invited her son-in-law. - The son-in-law swallowed and asked if he was really okay with it, and Reiko swallowed and silently nodded, then hugged him and gave him a deep kiss...