[MIDE-841] Naughty Girlfriend Helps Her Boyfriend’s Stepbrother With His Premature Ejaculation Problem While Her Man’s Not Home. Minami Hatsukawa

Minami lives with her boyfriend and the boyfriend’s younger brother.

One day, while the boyfriend was away, the younger brother innocently consults Minami about his premature ejaculation. She instantly takes the issue very seriously and begins to give him special training to cure him.