Hotaru Mama comes to visit her friend's house. She is concerned about her son's naughty gaze. When she invites him to her room, the naughty kid hugs her. "Next time, come to my house to play," she invites him, and they take a bath together and wash each other. Hotaru Mama's overly erotic body makes the naughty kid want to insert his penis right there. He teases her by saying, "You have to hold back," and spreads the futon, using toys to teach her about the female body. Unable to hold back, he roughly inserts a vibrator into Hotaru Mama's body and makes her take the kid's dick deep in her mouth and gives her a deep throat. At first, Hotaru Mama takes the lead in sex, but the kid's dick is so strong that they switch roles and Hotaru Mama is made to cum over and over again.