He asked me to test his wife

My line of work we go to different towns for a few days at a time. I got close to this guy I work with and he said he thought maybe his wife was cheating on him or would. He asked me to hit on her to see if she would cheat. I guess he considered that she would be attracted to me.
I told him no but he insisted. Eventually I gave in and said I would flirt with her and ask her out but if she said yes that would be the end of it. He told me she went out with her friends to this bar and showed me her picture for the first time. I was surprised, she was very attractive, far better than I thought he could do!
He went out of town for work and I went to that bar. She was sitting with two other cute girls who looked pretty slutty. She was dressed like them but so were most of the women here. Some guy bought their table drinks and they did get a bit loud but just in a fun way. I went over and asked her to dance. Started out with couple of fast dances and then a slow sexy one came on. She melted into my arms and by the end of the dance I knew from experience she was looking for a hook up.
I stayed at her table and her friends, one married, danced and flirted with men. We snuck out to my car and she suggested we go to my place. I knew what I had promised but I took her home and we fucked all night.
Next morning she called for a ride and left telling me she would call but didn’t offer me her number. I felt really bad and decided to come clean with him. I waited for a call from him or her. It was like waiting for test results from your doctor. I showered and before I could dress the doorbell rang. It was my friend from work with his wife!
I opened the door and let them in. It turned out it was a test but I was the one being tested. I guess it was a game they played and I was set up. They thought it was funny and went on about it laughing.
We have become friends in a very strange way. They will call and I will meet up with her and take her home to their house and fuck then he comes in and watches. Someday I will meet someone like her I hope.