I was working a trade show with a friend and coworker that my wife had experienced a couple threesoomes with, we were within a half hour of home and my wife was going to pick us up at end of the day. We got in the car and stopped for supper and a couple beers, a little flirting was going on and had been a couple years since we were together. When we got back to the car I got in the drivers seat, as he got in the back he said he was lonely and she could join him if she wanted, I said then I would be lonely, we laughed and she went for it climbing in back. I diverted to a more scenic route and before long they were making out and she went down on him sucking his cock while I watched in the mirror. I could tell he was about to cum but she said not so fast, slipped her pants off and straddled him sliding her pussy down on his hard dick and went to work. We were getting close to home when she came and he unloaded inside her, we dropped him off and I hauled ass for home to get seconds. Can't wait for the next encounter