My niece moved to Tokyo to attend university, and until she found her own place, she began living with me, her uncle. When she arrived at our meeting spot, I was stunned—there stood Mikan, her skin fair, her body grown curvy and voluptuous, with large, full breasts. Overwhelmed by her allure, our cohabitation began. From that day on, my life became one of confusion and turmoil. Daily life turned into a series of arousing encounters—upskirt glimpses, going braless, masturbating in bed while squirting. One day, Mikan smirked mischievously and said, "Uncle, you've been looking at me in a dirty way, haven't you?" Wearing a tank top that fully exposed her nipples, she captivated me completely, shattering my rationality as I gave in to her mature, developed body. What followed was an intense, impulsive relationship filled with erotic scenes: squirting with a vibrator, aggressive cowgirl-position sex, blindfolded bondage with titty fucks, handjob, and footjobs, and a relentless series of creampie orgasms. This is the lustful cohabitation with my seemingly innocent niece, whose H-cup, thick, busty figure hides an insatiable desire.