In this adult sibling role-play, a brother and his older sister have shared a room for years. One night, after they are both adults, he rubs his hard cock against her thighs as she sleeps. She suddenly wakes, but instead of getting angry, she guides him into her pussy without a condom. That shocking night begins a relationship hidden from their parents, and over the next ten years they keep secretly having creampie sex despite the risk of pregnancy.