I hastily reached for my shorts and laid them on my lower parts to cover my nakedness and apologised for being caught like that. Her reply was that I ...houldn`t worry about it because she had seen plenty of naked men when she had been on naturist beaches in France with her husband. Now I knew she was a naturist so I put my shorts to one side, enjoying the fact that my sister, standing there could see me quite naked. It was a bit of a surprise to me to find I liked my sister seeing me nude. Joan. Her slick strawberry slides around and over my finger, like my tongue slides in her vagina. Her movements begin to coincide with mine and my wool tights stick and unstick against my soaking crotch as I shift where I sit on my heels.I move my tongue out and take a quick firm lap of her clitoris."Uh!"I take a breath before I begin to finish our experiment.I stick my tongue out as long and firmly as I can and thrust it like a dagger between her labia, then out and in again over and over, as deep. I needed it so badly…Miriam was bisexual and sometimes she had fucked my sensual wife; but I asked Anita about her and she said she had not met Miriam during the last four months…Of course, I did not believe her, not even a single word…Miriam finally accepted an invitation to dinner.But she knew I wanted more; I wanted to fuck her, even in the ass.As we were having a delicious meal for dinner; Miriam told me she had something in mind, even better than be fucked on all fours…She wanted to take. We both knew what I wanted and the looks she gave me seemed to say, "Thank you for the interest. I'm flattered, but forget it."The day my dad announced that he and Mary were going to get married my brother George and I threw a party for them. I caught Mary alone in the kitchen after she'd had several drinks and was in a mellow mood. She smiled at me and asked, "Are you going to mind having me around all the time now?" "Not a chance" I said, "The more you're around, the more opportunities I'll.