I could feel my balls tighten as they pumped my load to the opening at the top of my cock. Both Jennie and Sarah’s orgasms began at the same time. I... was pumping as fast as I could. Sarah was screaming. My sperm was shooting up through my wife. Eventually the pumping in my cock stopped, both Sarah and Jennie’s orgasms had reached their peak and were subsiding, I collapsed on the bed. The three of us had cum together.We lay on the bed for a while, nobody could move, nobody spoke. Pools of cum. The rest of the day went by fine, I did try to avoid Mom though the time or two we did run into one another, she seemed fine, even friendly and cheerful. Maybe reliving the story she'd told me about my uncle had cheered her up. She sure did seem cheered telling me about it.Then, as I was in bed later reading, a knock came to my door and it was my mom."Hi, can we talk for a minute?" she asked. "I'm sure you remember me telling you about how Uncle Ted and I used to, well, make each other happy. I even had 15 stalls for the cows and a primitive neck holder too. There was a wide opening with a plank on one side. Once we got the cow in the stall, another plank would come down holding the cow in place. I also had a hook set up in the roof so we could hang the tails and not get lashed to death with it swinging back and forth. We would also have to cut the horns down so we could know which ones we were milking. I made an area where we could hold the milk in pails and an area where someone. I don’t know if it was just her body that made the difference, so much as removing that frumpy grandmotherly nighty. I asked her if she had any KY or Vaseline to help fuck her ass. She went and checked her washroom returning with some baby oil. I had her grease up my cock and her own puckered asshole. My plan was to let her ride me until I came, but first I wanted to drive my cock into her ass. I got her on all fours and kneeling behind her, I drove my cock into to her ass. My cock went in.