i have assessed this over the years. my thought now favors the physical and cultural contrasts. BBC, black balls and asshole look great in my view, probably years of obsession brought me to this. As far as culture goes, it is part attitude and presence, some mythos as uninhibited bedroom talkers, pleasers, manipulators, and sex machine. Certainly this is not true always, maybe not mostly, butt it fulfills me to tack this presumptive label there and enjoy it. i'm a white guy that wants a black guy in charge in the bedroom. Something could happen to change my view, but for now that's the story i'm sticking to.