My wife fucked a guy in the bar bathroom on NYE [First Time]

Still a little in shock that it's real. We haven't talked about it yet.

My wife and I have been into the idea of a threesome and sharing her for a while but never quite worked out the logistics. We went out with a small group of friends to a bar for NYE. One friend brought his cousin, Erik. My wife gets flirty when she drinks, so I didn't think much of it when I saw her sitting next to Erik, laughing, wearing his hat, etc. As the group thinned out and we got drunker, though, I think things got more serious. I think I remember her hand on his leg, leaning in and whispering in his ear. I don't know, I was really drunk. But at one point I went to go dance, and when I came back they were gone. I just knew. I'm pretty sure the rest of our friends knew too. I waited a little outside the bathroom door and I definitely heard her moaning, and I heard a slapping sound as if maybe he had her bent over the sink.

They came back to the table after I think maybe 15 minutes. She was flushed and giggly. I think he winked at me but I'm not sure. We didn't talk about it, but kept drinking and went home a few hours later.

We've been too hungover to talk about it. I'm not mad. She's beautiful and I love the idea that another guy got to fuck her. He also had a very different body type, a little shorter but extremely muscular, so I'm glad she got to experience that. I just sort of wish she hadn't done it in front of our friends, because I worry they might see me differently now.