It has been one year since her husband passed away. A mother moved from the countryside to Tokyo to live with her daughter and son-in-law. However, starting yesterday, her daughter went to Kyushu for a class reunion for about a week, leaving the mother and son-in-law alone together. One morning, the mother-in-law saw her son-in-law's erect dick and, unable to calm her excitement, masturbated. But the son-in-law secretly took a photo of her with his smartphone. Aware of this, the mother-in-law pressured him into sex, even making him creampie her. Furthermore, she climaxed in a threesome with her son-in-law and his friend, forcing them to creampie her. The insatiable sexual desire of this big-breasted mother-in-law, who wants to get pregnant, knows no bounds.