That wasn't a natural response. Something was wrong there. It was the kind of thing a guy would dream about, but it couldn't ever happen. In his mind, he could hear himself moaning 'so good' over and over. Every time he did, she would moan and shake in response. "So good," he whispered. He realized that he had said it out loud, and sat up to pay closer attention to what the teacher was saying.
When he got home from school, he was once again delighted to see his sister bounding over to give him a hug. Her breasts bobbed beautifully and he loved seeing her hard n*****s through her t-shirt. She looked up at him after he hugged her back, and she seemed to be looking for something in his eyes. He kissed her on top of her head. "I'm going to go change," he said.
That look she had given him...T
