I saw my sister-in-law, who was going through a rough patch with her husband, masturbating in the shower... and then I had sex with her while her hair was still wet!! Suehiro Jun HMN-396

I went to Tokyo to take university exams and decided to stay at my brother and sister-in-law's house. Although my brother and his wife Jun seemed to be doing well... lately my brother has been coming home later and later, and Jun complained that she was very unhappy. "We used to shower together every day when we first got married." One day, I saw Jun masturbating in the bathroom and getting excited. Unable to resist, I went into the bathroom with an erection! From that day on, we had wet sex in the shower many times.