Miyu is a popular idol and also my beloved younger sister. She was the cutest, most talented girl I knew—someone truly special to me. But her feelings for me were real, and I couldn't betray her heart. Then one day, she suddenly confessed, "Would it be okay if you used me, your idol sister, as your masturbation toy?" I was stunned, but as she stripped off her clothes and seductively approached, my reason shattered. Before I knew it, we were passionately entwined, tongues clashing, driving each other to climax. I didn't betray her—I fulfilled her deepest desire. She didn't want to be just an idol to me; she wanted to be mine alone, completely. And from that moment on, I was trapped in the forbidden pleasure of having an affair with a celebrity.