Even though I used to be plain and unpopular, I worked hard on self-improvement and eventually succeeded in establishing myself as a model. One day, I reunited with my former classmate, Chiharu, who is now married and living with her husband, Riku. When the three of us met for dinner, I seized the opportunity while Chiharu was asleep and stole Riku away. After that, I began meeting him frequently, repeatedly engaging in intense reverse anal training sessions where I dominated him. I became consumed by an uncontrollable desire to see the look on his face as he experienced female-like orgasms—something I knew Chiharu had never witnessed.