When I got to their asses, and soaped up between their cheeks they giggled even more and started petting around and rubbing on me, even without a bar ...f soap. I sensed almost at once that I was about to get some pussy, so my dick got even harder and I took more time to enjoy things.By the time I got around to sudsing up their bushes they were beginning to tumble to the fact that this was foreplay, whether they knew what the word meant or not. It didn't seem to distress them at all and before. I sat on the bed and started to yank away. The picture of my mother in her transparent blouse came to mind. Only in my fantasy, the blouse was still wet, very wet. Before long I was again at the verge of exploding with ecstasy when I head mom shouting out that she had finished and wanted me to use her bathroom. The voice sounded as though it was nearing as she spoke. Realising that I had to shut the door entirely, I sprang to my feet and apparently just in time, as mom entered.I must have. That is exactly what happened, when lowering her hands from the helpless Karen’s generous breasts, Joan first massaged and then spread apart and exposed the inner folds of Karen visibly wet cunt lips.Karen’s anger was by then battling for supremacy against an ever growing sexual desire and despite, or perhaps even because of her appalling and dreadful yet crazily erotic situation, she began wondering, what the hell, why not just surrender to the moment, after all, although these people were. They had sworn together to be faithful. Without Betsy's knowledge I had a DNA test carried out, a simple scraping off the inside of her cheek carried out with all the blood tests and vaginal swabs. Betsy was different in every way to all of our family members, physically, emotionally and psychologically. The test cost a fortune and the results took months to come through, but were absolutely conclusive that Betsy was not related to either of Gail or me. There was not a single shared genome.