[HUNTA-624] My sister, who has overly large breasts, and I were alone in a cramped unit bath! Our three-day, two-night stay was unbearable! My sister came to stay with me in my small one-room apartment after moving to Tokyo from our hometown. It had been several years since we last saw each other, and I was surprised by how cute she had become, with her breasts also having grown... no, they had become my beloved large breasts.