Several years ago, I had a black guy approach me from off the AdultFriendFinder site, wanting me to fuck his very lovely wife, while I degraded him ~ some old-school, black slave / white master role play stuff.
At the time, I was more into being the cuck myself and more into finding a black man for my wife - so unfortunately, I turned him down.
Now that I'm divorced, I'd take that opportunity in a heartbeat, though I'm not too sure of the role play subject scene itself.
Just because it's very prominent on this particular site: White males aren't the only cucks and black men aren't the only bulls. (Though it's definitely my preference!)