I am white. Some people who saw me sleeping on a sofa once woke me up simply to see if I was still alive. I suppose this means I am the target readership the OP has in mind.
Huge is such a subjective judgment. I think the largest black cock I have ever seen was at the state fair and it won a best in show and sold for several hundred dollars to a poultry breeder.
The huge guys I have seen were never black, only some sort of beige or brown, and the other women were never as white as me so they evidently don't signify. When it was me I was generally busy having sex and didn't have a separate reaction other than those associated with that activity. If the huge men were any good, it was pleasant, but truly that had little to do with them being particularly big-boned, or even if they had clothing on.
OP, please be more careful how you phrase your question.