There is more to a human being than their cock or vagina. Lovemaking involves 100% of a person's body and mind. Sure there are quickie sexual encounters where there is less chance of true intimacy but the longer the sex continues the couple cannot help but connect with each other both body wise and cerebrally and they turn into lovers. Witnessing this from the husband's point of view when sharing his wife with another, especially if it is a black man is a mind altering experience and since I've shared my wife with black men, I don't view her in the same way. Setting aside the experience of seeing her do things with them that she never did with you such as anal or rimming their asses, I find myself both disturbed and turned on when she kisses deeply and passionately.
When I first brought up the idea of sharing her with black men she was initially upset but when she finally came around and agreed to do it she told me:
"I am willing to do this for you but I want you to know that I will be planning on enjoying this as much as possible. I don't want you to turn into a jealous bastard to me if we go through with this. Sometimes reality is not the same as the fantasy and this could hurt our marriage. Remember that when I am making love to this man I am planning on doing everything I can to satisfy him and as far as I am concerned nothing is off limits, I consider myself a good lover and I will be giving myself to this black man completely, like I do to you, to fulfill his every desire. Would you have a problem with that?"
I agreed to this but when she did the deed, I was not ready to witness what I saw, heard and smelled. I'm not sure what I expected but I was shocked at how much she enjoyed herself and how enthusiastic she was. The intimacy was full and complete. It did change our marriage.