The reason her stepmother, who lived with her, left home was, surprisingly, her stepfather's impotence... The two tried to comfort her grieving father-in-law by trying exercises to improve his erection, but it didn't work, and he became desperate. Unable to bear the sight, Serina gave him a groin massage, and her stepfather's penis, which hadn't gotten hard no matter what she did, suddenly grew bigger and he had his first full erection in six years! "This might be the last erection of my life... I want to have one last erection with a man..."