This may sound racist...
But it seems that most guys who are really really into big butts are black guys.
Just by browsing through this thread, you can already feel this tendency.
One of my best friends is Ethopian, he's skinny as hell, like 125 lbs for 5'10".:crazy: But even he prefers women who are rather large for my taste, especially women with a huge butt.
It's well known that people in Africa prefer "big"/large/"feminin" women. Because the majority of African women have the "chunky" build. In France, it's very common to see immigrant African women in their 40s who look like
this. It's in their genes, thus the preference.
So I tend to agree that's it's more a "black thing"...