Risa's home hosted Michael, a black man who came to Japan at the request of her younger brother. Risa accidentally witnessed a black man's huge penis and couldn't stop thinking about Michael's dick. During her brother's absence, she couldn't help but try inserting that huge penis into herself, and things got out of hand! Risa had sex recklessly, regardless of whether her brother or boyfriend was right next door, and even allowed him to cum inside her!
