I decided to go to my husband's parents' house to visit his mother's grave. Rie also tolerated her kind father-in-law, but was caught masturbating without her husband's attention. The next day when we are alone, my father-in-law tries to convince me that I can satisfy Rie-san better. Even though she was resisting, she became captivated by the pleasure as her stepfather made her cum over and over again.