[MF] 41 year old milf wife’s first time with another man

I met my wife Nicole way back in high school, and we are now in our early 40’s. Until very recently (subject of this story), I was her first and only man she had been with sexually. Over the last 10 years or so, I have wondered if she every regretted not experimenting more sexually before getting married and settling down. Our sex life has been generally good over the years and she seems satisfied, usually having sex 2 or 3 times a week. I have little complaints overall. But, in the back of my mind, I have long wondered if she has those feelings of wondering what it would be like with another partner. We are both in pretty good shape, and I would say I am average “down there”. So, at times I wonder if she has thoughts of being with a guy who is bigger, or simply different than myself.

About a month ago we were hanging out on our back deck, a typical Friday night enjoying an adult beverage and just talking about life things. One of her good friends came up, as she had plans to have lunch with her the next day. Her friends is the same age and also married and settled down. Nicole made a comment about how wild her friend was before she got married, and how she had been with several partners during college and in her late 20’s.