Earlier in our marriage we hung out with a single buddy of mine who my wife thought was cute and one night we had a few beers at his house then went out. They were flirting more than usual and we went back to have more beer on his deck. I went to per and get more beer and when returning she had her head in his lap but they quit when I got there but both had sheepish grins. It was getting cold so we headed to the house, I asked her if she wanted more and she said sure if it was ok , he had a nice dick. We were on the couch, she was rubbing his crotch and he looked at me not knowing what to do. I said go for it if they wanted and soon she was sucking his cock. I hoped for a threesome but she pushed me away so I moved to the chair watching them get naked. After a while she came to me and said he couldn’t get hard and she really wanted to fuck him so I left the room. I fell asleep and when I woke up I wandered back in where they were fucking on the floor. He got up and headed to the bathroom, I was horny as hell and joined her on the floor slipping into her soaked pussy. She said he came twice and I didn’t last long before pumping a third load in. We all cleaned up, had another beer and headed home while she told me the play by play. They had more encounters after that which is another story