My childhood friend Satomi came to stay at my house for a week due to some family circumstances. We met for the first time in six years, and she had become very cute, but she was still as tomboyish as ever and made fun of me. Furthermore, she straddled me, a virgin, licked my nipples, and played with me in a cowgirl position, mocking me for ejaculating as a virgin... I can never forgive her! My dormant sexual desire and anger were ignited, so I started training my hips to the death, and while my parents were away on a trip, I got my revenge on Satomi!