I've been lucky enough to have 2 different fwb's. 1st was when I was in my 20's. Only issue was she was my friend's wife. Red head, we had a lot of fun for sure. 2nd was when I was in my 40's. I met a younger redhead that wanted to have car sex once or twice a week. She then had an idea. She wanted to seduce my wife. Who am I to complain right? This went on for almost 2 years. Wife never knew about her and my car sex