15 shots in total. My stepsister, born when my parents remarried, is still a virgin. I was fucked by my unsuspecting, big-breasted older sister, and she fucked me too. Although the movements were messy, it was so erotic... Mikage Reimi FJIN-082

Reimi Mikage, 28 years old. Always a listless, lethargic woman. Her older sister was a born gambler. And a superstitious person, always saying things like "socks must be worn from the right side" or "you must eat natto for breakfast," basically believing in things without any reason. One day, for various reasons, I ejaculated, and from then on, the superstition that "ejaculating on your younger brother will make you win at gambling" became popular among the older sisters. From then on, the fantastical story of being manipulated by her older sister began.