I heard a few wet farts and her dropping some kids off at the pool, but I didn’t say anything. She slid into the shower with me and that led to us g...ing at it like lust crazed teenagers with just inches of metal bars separating their naked bodies as they were forced to watch people fucking like rabbits all day long.“You’re going to be sore in the morning,” I told her as I was pulling my dick out of her ass.After we had washed up in the shower she was sucking my dick hard for me to fuck her. I knew she was at least in her twenties, perhaps thirties.She had hair. I had no idea how full or what color it was, because it was wet and very dirty. Both our bodies were filthy from the muck, mud, and silt, not to mention the old ragged carpet they used as a makeshift coffin for her. The BETH ANN had an outdoor shower on the back deck for use after water skiing, or some other dirty task, and I unhooked it, and began to wash the filth off of her. She was dirt from head to toe, and most of it. . I couldn’t let my Dad or anyone else find out about Hiro and I. Are you sorry about marrying my Dad? God I hope not.” I replied.She shook her head no. Then she said, “This is not the only time I saw incest. Just the first time I saw a penis. Other than my husband’s. The others were always in pussy before.” she saw I was confused. “My father was worried about decline in birth rate in family. Thought family line would die out. So he mate with all women in my family. Because all their husbands. They'd often sit over a meal and talk about which guy and which girl was the sexiest of those they'd swapped with and when there was a couple they mutually agreed were very sexy and enjoyable to swap with, they'd try to arrange another evening together. One couple both of them admitted they'd really enjoyed swapping with had been Sam and Lauren. Phil didn't know why but the wife's name -- Lauren -- turned him on. He coudln't say if it was because he'd known some sexy girls in his school days.