When her (step)sister's) pussy was discovered to be pregnant, she was no longer able to pay any attention to it. Her (step)brother pretended to be considerate of her and rubbed her lonely, throbbing vagina, but it turned out to be a sign that he was OK with doing it! At first, he was just gently thrusting in and out, but before he knew it, he was tasting the cock and groaning in pleasure, and he couldn't help but cum inside her!