Show your wife with another man

How is it working out with the neighbor? We had a naighbor who was very attractive to my wife but we limited the fun to her flirting with him as we were concerned about living near him when the relationship cooled. To me, it seemed ideal (especially since the fun could be spontaneous with little planning and no traveling involved plus we knew the guy's background) in that he could join us frequently and almost effortlessly for quickies when my wife needed him.