Hitozuma, Mitsu to Niku

A lovely housewife, Takamura is invited to a fitness club by the wife of the managing director at her husband's job. Then she founds out that most instructors are young and handsome hunks with big bulging dick. After that sweaty workout, there's more to come between the instructors and the customers and Takamura enjoys the membership and the hot sex with younger hard studs. Then the owner of the gym and Takamura goes even more daring when they have a group sex in a hotel.