On a midsummer day in record-breaking heat, I hurt my right shoulder during volleyball practice, so I asked my friend's mother, Mariko-san, to give me a massage. From the first day I met, I had a faint love that could not come true for Mariko, who has an adult sex appeal. It was me who received a massage with such a feeling in my heart, but when Mariko straddled, she got an erection. As if seeing through my desires, Mariko approached me with a bewitching smile.