Interracial

What is it with interracial sex that gets me off?
It`s a great turn-on to see black men fucking white women. And fucking is exactly what they do at all the interracial sex sites. There is nothing subtle about it. It`s plain hardcore fucking and sex, often in gangbangs and with a certain amount of aggression, bordering to abuse sometimes. Big stiff dicks and hard black bodies pounding white pink pussies.
On the other hand, I find nothing interesting with white men screwing black girls. It`s boring to the bone.
Why is that?