JUFD-372 Lewd Instructor's Alluring Butt Management: Reiko Hayakawa

It is said that there is a fitness gym with a reputation that even the most slender man can get the body of the goal if he joins. Reiko, who is an instructor at a seemingly unremarkable gym, used her secret membership management method to stoically work on body remodeling. She said that the method was to feed the members with a chastity belt and give a "reward" of ejaculation only to those who achieved results. Members dream of ejaculation every day and continue to train at the gym.