Her breathing was fast and sporadic almost panting and her nipples were still very hard. Then he gave her what she wanted and pushed it across the thr...shold. She gasped and cried out loud?aggghhhh?. Hhmmmmm? she was really enjoying this.I watched fascinated as he slid that black beast inside her. I unzipped my fly and got my cock out and started wanking myself slowly. Dean was oblivious. He was now pounding Sarah, his pelvis slapping noisily against her bottom and thighs. He moved her expertly. Aware of his renewed attention, she posed for his admiration. She marveled at her own brazenness. Only days ago she would have found it impossible to stand here in front of Ron, completely nude and enjoying his eyes traveling her body in this special way. She refrained from giggling out loud at the thought, but this had been the last day of school and yet this afternoon had held some of the biggest lessons of her life thus far. All sorts of sexy new things were happening. If that wasn't enough,. And she was stroking him off every day after school. And, he was doing her. That meant they pretty much had to be naked, naked with that beautiful sister of his.I was now seeing my own sister in a different light, a view of her as a girl, a sexy-looking girl. I imagined it was her stroking me at night when I lay in bed moving my hand up and down.The next time Tim and I were together I asked him."How did you get your sister to do that, to get you off like that?" Well, she caught me doing it one. Daniels asked. We had none. On the way home I asked, ‘Is that pre-nuptial agreement anything to worry about?’ Mommy said, ‘Maybe a bit. It means that if you and Corey ever had a divorce then you might not have enough money. Your father was masterful in the discussion. He demanded that you have a trust fund for your education. We gave in on the pre-nup as part of getting that. You should probably be more concerned about having to pay back any money you use from the trust fund if you don’t marry.