Are you sure that you can handle seeing your wife react to another man’s cock? When she finds one that “floats her boat“ she will likely become a woman possessed and make sounds you have never heard her make before. She may tell you that she will do anything to keep getting his cock, and actually do it, freely saying that she is a slut for his big cock or that he is her master and owns her body. That may sound hot, but reality can be different than your fantasy and it will definitely change your psyche and self perception. I’m not saying that it is bad, I am just saying that you need to make sure that you can handle it and you want it because you can’t go back.