Sorry for typos in the above comment, lol. I think it has more to do with environment and conditioning than pigmentation or genetics.
I don't personally believe it's a skin colour thing, but rather a personality. My Son only dates supermodel African women, they're some of the quietest, shyest and ridiculously beautiful women I've ever come across. Come to Australia lol you'll soon see what's up. Some of the most vulgar mouths are Australian born.
