Our first time was a mfm threesome. Me and the missus had been talking about swinging for a while and eventually I decided to surprise her. I had been chatting to a guy online and eventually met him and discussed rules etc. one evening I drew her a romantic bath. Candles, bubble-bath sexy book to read etc. I let the guy in without her knowing and when she got out of the bath I blindfolded her and tied her to the bed. The guy came into the room and started touching her. Only after I spoke from across the room after a few minutes did she realize that it was not me, and then the real fun started This was one of her fantasies, so I knew she would love it. We also had safe words to stop all play if we wanted to.