JAV Tokyo

When he visits a personal gym, he finds a bare-chested female trainer! The trainer gives the man a frank instruction, but the man can't resist and gets an erection. The trainer tells him, "You've got a lot of blood flow here. If this continues, the blood won't flow to all the muscles in your body, so you need to get it flowing. He then stripped off his trousers.... The beautiful trainer's nude and dirty instruction begins!