While I was prepared to accept my wife being knocked up by other men, they were all white and similar to me in many ways, though they had much bigger cocks and balls. Only close friends and family knew it wasn't me who had knocked her up and even fewer who the real fathers were. For your children it will always be obvious you are a cuckold and their true father did your wife/their mother.
I doubt I could be brave enough to handle that for the rest of my life.