A daughter attending junior college comes home with her boyfriend, Takuya. A chaste and beautiful mother greets her young visitor with a kind smile. Cheerful laughter can be heard from her daughter's room. The mother heads to the room with a tray of tea and cookies, hoping to buy the two a snack. However, she stops in front of the room, feeling something is off. She feels a little uneasy, but when she peeks into the room, the young, rock-hard, fully erect huge cock of her daughter's boyfriend jumps into the view of the mother in her prime...!