Nan, 28, has been married for five years. She met her current husband on a blind date. When she got married, she didn't have a strong sexual appetite, but after she quit her job and became a full-time housewife, her sexual appetite exploded! Unable to satisfy her husband's small penis, she masturbates incessantly every day. To say goodbye to those days, she searched for a sexual partner on a dating site and met one with a very large penis. When her husband isn't home, she continues to cheat on him...