Next summer, I decided to go on an overseas trip with a couple of close friends. Although we planned to go diving, since I was the only one who wasn't good at swimming, I secretly started going to a swimming school. The instructor there was male and gave private lessons. My body, which hadn't been in contact with any man other than my husband for a long time, couldn't suppress its urges, and I ended up masturbating in the changing room. Little did I know that this scene would be secretly filmed, and using that footage as leverage, days of ●●●●●● lessons would begin...
