Actually, certain designers in the black fashion world have designed jeans and slacks especially for big black cocks. Some are designed to subtly show off the length and girth to women without being tight. Most white guys don't know this btw
I have a kind of assignment to write about black fashion, and may be involved in an ad campaign. So I am sure I could find some pics somewhere where it's obvious how hung a black man is by his bulge and the cut of his slacks.