I met mine through the wife. We were co-workers and had a good chemistry. We joked here and there and, at one point, our jokes took to a sexual tone. Once we both got comfy with each other, she actually asked me if I might be interested in a threesome with her and her husband. At first, I was a bit thrown off and shocked. However, she assured me that she was serious and, having already met her husband prior, there was a level of trust and comfort in her asking. When I said "Yeah, I definitely would be interested", we all met up. Had some drinks and laughs (as was normal) and then we went from there. Great times had and still friends, to this day.