Anything is possible!
.Go on an official swinger website.
.Find the guy with the right level of physical attraction for your wife.
.Screen for the right size bbc package.
.Screen for intellect, swag, smoothness, sex appeal, gentlemanly qualities, character.
.Most of all screen and make sure that he is lifestyle minded and understands the lifestyle and what his role is especially. That his role is to A. Help you as a couple to fulfill your fantasies and B. Show that lovely lady the sexual time of her life and leave her wanting more.
Now you do your part and screen for all of the above vs just finding some random black dude to fuck your wife and it is very possible that your wife could become a bbc loving wife!