I could feel something hard rubbing up and down my arse crack. I soon realised that this must be Geoff's cock and it was clearly oozing precum as my b...m was getting very wet.Just as I felt his hardness pushing firmly against by bum hole, Susan's wriggling intensified and she pulled my head firmly into her as she convulsed in what I now know to be a female orgasm."Oh yes that's my baby, such a good boy, make mummy cum yesssss!" She screamed as the pressure against my botty intensified until I. Our sessions were simple and unfortunately resulted in me cumming alone. Suzy didn't seem to mind and convinced me that our lovemaking felt great to her. I suspected she simply did not know what she was missing. I tried to get Suzy to let me satisfy her orally but she dismissed the attempt as "nasty."A month after moving into our new house, Suzy asked if we could join a health club. I ask her why? Her figure is terrific. She correctly reminded me that although she was trim, she needed to work. But your hand starts to slide up my thigh, revealing that I am wearing a garter belt and stockings. As you go further north, you stop just short of my pussy. I spread my legs as far as my skirt will permit, not caring who is watching. Your hand brushes across my pussy, confirming your thought, that I wasn’t wearing underwear. Your hand retreats to my thigh again and stays there. We finish our drinks and you kiss me again and take me hand and we retire to our room. The minute the door. .we'll see.I've lived over 50 years and never before had any inclinations toward incest. Whether this incident was a one time anomaly or not, I don't know. All I know is that I ended up having sex with my grandniece Jenny.When and how did it start? Probably the best way to say is to tell you a little something of my family.My older sister Karen and her husband Bud live here in Vermont, about a mile from me. Karen's daughter lives in Florida with her husband and their daughter, the.