My ex- wife got on Craigslist one night when we were watching mmf videos and put an ad for a bisexual guy that would like to surprise her husband. Unknown to me that she had done it, we had been looking at the posts to see what people were advertising for and amazed at how many guys wanted to be with a couple and service their every desire. She found some guy that had said his girlfriend had talked him into sucking cock with her and he found out that he liked to be used to get a lady turned on. My wife arranged for him to come to our house one afternoon while I was at work and told him that she wanted to sit on my face and watch as a guy sucked me off. She showed him a couple of videos we had made and he wanted to eat her pussy so badly that he agreed. Fast forward to the next Saturday and we were watching porn and she asked me if I would ever let another guy join us.I said that if was her fantast that I could go along with it as long as she didn't let him fuck her. While I was getting drinks she called this guy Dave and told him to come over and look into the back patio doors and then come in when she signaled. We were in a 69 and I was on the bottom eating her pussy as she sucked on me and she saw Dave and nodded her head to come in. I was so into it that I didn't notice the door open and shut and she motioned for him to come join her sucking my cock. I knew it was different when he took me in his mouth and looked around and saw her smiling back at me as she asked if this was okay. At that point there was no way that I was going to say stop so she sat back on face and started forcing him to deepthroat me. It was only seconds and I came, hard,, and as she also started cumming. I ended up sucking a cock for the first time that night and I also didn't mind letting him fuck her with a rubber as she sucked on me. We had many 3ncounters after that one and it turned me into a truly bisexual guy.