The first time

I have fantasized about my wife being with other men for quite some time now. Although, it hasn't happened yet, I'd like to know from the husbands what it was like for you when it went from talk to doing it? What were you thinking and feeling as it happened? Were you there? Did she go out then come home to you? Paint me a picture of your thoughts and emotions when it finally happend for the first time. Was it a one and done type thing or did it open the door for other encounters. Thanks fellas!