Behind her family's back, Mom secretly smuggled a large quantity of vibrators into the house. (Oishi Saki ROE-362)

My father decided to go on a business trip. Even to me, his son, my parents seemed to have a good relationship, and their nighttime sex life was still going on… Because of my mother, I originally thought she would go with my father, but it seems she couldn't leave me, being lazy… But a month later, my mother, seemingly unable to suppress her loneliness, bought a vibrator on Amazon. Although I pretended not to know anything, from that day on, my mother's behavior gradually became strange…