We started shortly after we met as I shoot to quick and she needs longer fuck sessions, mind you she was a slut before we met. We started in 2006 and still do it, not as often as back then. She has had at least 50 different guys over the years, even had one of her black guys live with us for 3 months. He slept in our bed with her, I had the couch. So I know it really happens, just not sure how much.