The one shred of rationale that saved them from further damage was the wisdom in pulling out before he came. Michael had not yet cum inside his sister's pussy, and although they both wanted to desperately do that and feel that, they both knew what the consequences would be. There were a few close calls, his big cock spurting out just as the head popped from her hot little pussy, and they both realized that they had to be more careful, but the pleasure was far too great for them to stop walking down the incestuous path that they had found.

"So what do you like about it best?" asked Jill as they both swam around in the pool. Now that they had shared their bodies together, Michael found himself enjoying his time in the pool with his sister much more than before.

"What do you mean?" he asked, his muscular shoulders above the water, his bronze muscles shiny and wet.

"Well you know," she went on, her eyes twinkling in the sun as their conversation carried across the water. He did know, and his cock twitched underwater, but he wanted to hear her say it. "Do you like it better when I take you in my mouth, or when you are deep inside my body?"

"I love them both," he told her with a smile, his cock now growing harder and harder as he contemplated his twin sister's question. "I think I like it better when I am inside you, when you are talking to me and begging me to do it. I like it when I can hear you, and you can tell me how much you like it and what you want."

"Yeah, I like that too," agreed Jill, her own body raging with a desire to have her brother doing just what he was talking about. "For some reason I really like it when you take me, control me. When you just really do it hard and pound me. That just feels so good."

"Really? I have been worried about doing it too much, about actually hurting you."

"No....I like it when you do that," she told her twin. "It's like I'm helpless in your arms. That is so good."

"So what do we do when Mom and Dad come home?" Michael asked, broaching the one subject that they had not discussed. Unbeknownst to him, Jill's thoughts had been centered on her father lately, especially when Michael was inside of her. She found herself imagining that it was her father inside of her.....(cont)