His stepsister's voice echoed through the walls. It was muffled, but he knew it was her. He carefully tiptoed to the door and peered through the keyhole. His cock hardened as he saw her lying on the bed, her skirt hiked up, and her panties around her ankles. His heart raced as he watched her play with herself. Unable to resist any longer, he pushed open the door and stepped inside.
She screamed in shock and embarrassment, covering herself with her hands. He closed the door behind him and approached her slowly. "I'm sorry," he whispered, "I shouldn't have looked." He didn't know why he said it; he was far from sorry.
Her eyes met his, filled with a mixture of fear and lust. "It's okay," she whispered back, her voice shaky.
