My wife failed her loyalty test

So, this was related to you by your friend Shawn? That had to be an awkward conversation. At the time you made the bet I'm sure you were confident and didn't feel the threat of losing. Shawn is interesting. He said he felt bad afterwards. I wonder if he felt bad for doing it or bad for you because you were so sure your wife wouldn't be tempted and she failed, or both?

Is Shawn gone now? Will he be back? Has your wife said anything about it or acted any differently since? You know that if you mention the "bet" between you and Shawn your wife will probably be upset with you. She'll think you set her up when she was vulnerable from drinking. It must be hard to keep what you know to yourself.

Turning this into a net positive will be tricky. It may be best to sit back and take in information for a while. See how she treats you. See how you treat her. Both you carrying the knowledge of what has happened will not fade away. Find a non-threatening way to discuss sex with her and see if you can get it out in the open. Your best chance for you both to enjoy it will be if you're honest and open with each other.
He's gone, he travels for work. my wife has been acting normal.
 
Not only did you wife fail her loyalty test as you knew she would when there was a dick that size on offer, but you were also set up by your so-called friend who only wanted to fuck your wife's sweet little married pussy, more than he ever wanted to be friends with you. This guy has been around and knew that once your wife had seen his cock bulge through his pants that she wasn't going to be happy till he had fucked her senseless with it. You may have been keen for her to fuck another guy, but this guy conned you into letting him be the guy that she fucked
I can see that
 
As a woman I will tell you if she failed the test this time, I doubt it was the first time, and if it was I have no doubt it will not be the last time. Being a married woman in a swinging relationship, I still love the thrill of cheating with a man, especially one of his friends. It don’t say much for his friends but most men are men and given the chance will fuck their best friends wife every time!
Can't trust your friend either.