YSN-631 Kotone Fuyue as a Sister Who Finds a Toy and Gets a Creampie

While cleaning her dad's room, a woman named Kotone Fuyue finds an adult toy on a shelf and picks it up out of curiosity. Her brother, who has a strong sex drive, catches her and teaches her how to use it, playing with her, licking her, and using his dick until she masturbates. His demands keep growing, and he eventually gives her a raw creampie.