My wife (F 31) fucked our co passenger during a train journey thinking that I didn’t noticed.

I’ll start of by saying that my wife loves to have flings with other men and she really goes for it whenever she’ll get the chance. So we both were to have a train trip to somewhere which was a three day trip. Everything was going good and then this handsome man joined us who sat in the aisle. It was just the three of us in there and we invited him to our side as he was sitting alone. He was a 26 years old guy, working in IT sector, tall and handsome. My and he clicked immediately due to her IT background while I basically had nothing to talk about other than causal things.

They both got busy with talks and I moved onto his seat on the aisle for a window seat. Then I saw my wife going to the bathroom and then she was back and pulled in the curtain, without even acknowledging that I was still sitting here. And I knew I was in for a show. I didn’t bothered to disturb them until one of them walked out themselves which was him by the evening to go to the bathroom and he walked back and sat on my seat, right next to my wife and they both were lost in themselves.