I would do a 3 some. In the past when I have it was always with a female and always someone I knew well. I did not experience complications, simply because we all knew what we were doing and why.
I know that there can be but I was fortunate. I have never been with another guy and a girl, in an actual 3some. I don't know how I would react to that. I love sexual relationships and I love watching and controlling. We will leave that for another discussion.
an Old Cowboy