Yukiko Matsunaga is 45 years old. She has been married for a long time, and now she hardly has sex with her husband. However, her sexual desire doesn't fade no matter how old she gets... When her son got a job, she decided to apply for a photo shoot. There, she discovered the forbidden pleasure of being a woman, and a new door beyond that. She climaxes in agony as a stranger's dick is forced into her asshole.