Is this really Japan...? I've never seen such an erotic gym! Miu and Ruka's double boin is on the rampage! I can't believe that personal gyms these days can do this much! They'll make men cum with their soft, wonderful-to-the-touch double boobs! In the locker room! In the gym! In the pool! A secret training session that only a busty trainer can do to maximize your male function anywhere!