"Let's go out for a meal and a drink to celebrate my being a granddad," he said.Susan and I went to the bedroom to change. I looked at Sue who was sta...ding there in her tiny panties wondering what to wear. She looked lovely. I asked her to wear my favorite, a Grecian-style dress that comes down to just below the knee, slit up the side, and backless. Sue put it on and also wore gold high-heeled sandals. All she was wearing underneath were her panties. She never wore pantyhose and hardly ever. Jim stands and takes Amy’s hand helping her up and laying her down on middle of the living room floor,he goes and gets condoms as I get down between her legs and lean over kissing her as I slide my cock inside her,I slowly move my hips back and forth guiding my cock deeper into her warm pussy.Then sit up and with firm grip I hold her waste and thrust myself harder and faster and Jim kneels next to her and watches us fuck on his living room floor.With condom on I slow down and slide out of Amy. Fuck ME, now. You can talk, later."She pulled her nipple out of his mouth, and bent forward to kiss him. "Here goes numbah FOUR!!!" THIS time he joined her with another load. It was weak, as expected, but was enough to make a stream run down her leg as she rose. She kissed him, again and took a knee, to clean him. She loved the tastes of a man's cum, and her own pussy juice.She went toward the bathroom, after asking if either of us wanted to eat her cream pie. Neither of us did, THAT TIME, so. “Now we can never talk abut this and you can never tell any one. It is just between us OK?” I nodded and she said we could never do it again because it was not right for a mother and son to do sexual things together. I think it may have happened because Dad had been traveling a lot and she always seemed to get horny when she was pregnant. That night I ate my sister’s pussy and she sucked my cock and made me come twice. . I turned thirteen just before the baby was born and I was attending.