My father remarried so I had another step-sister, Iori. She sleeps very soundly, almost never waking up before dawn, even if there is an earthquake. I am very jealous of her, she is loved by the whole family, but I am like an extra person in this house. Because I knew she wouldn't wake up, I decided to sneak into her room while she was sleeping and do it with her. Seeing that she didn't wake up, I became even more daring. I ejaculated all my semen inside her and then wiped it away, as if nothing had happened. The following days I continued to make love to her. Today my parents returned home, and only my two sisters were left at home. I immediately came up with an idea to let other people come and have sex with my sister and make more money. Thinking of doing it, I posted and quickly there were many perverts lining up to have sex with her. And then just like that, the innocent stepsister did not know that every time she fell asleep, a man would come and make love to her and ejaculate all his semen inside her...