The obscene kiss and sexual intercourse of a married woman - the secret of a brother-in-law's wife who is addicted to her tongue technique -

It has been several months since my husband's younger brother Kazuo lived in the Sawamura family to take the exam. In order to encourage Kazuo, who is feeling uncomfortable about having passed the second round of the exam, Reiko makes a verbal promise to "give me a reward if the mock exam is good." Kazuo, who secretly admired her, said, "Then I want to kiss my sister-in-law!" As a result, Reiko achieved a great performance and was given a reward. However, she felt a violent and violent kiss that her husband had, and the passionate kiss she couldn't get out of her mind...