A black man's opinion. We get it. If the woman enters the room and her ass follows in less than a minute after, you're not interested.
Well, there are many types of ass---the ass that Che has been posting quality grade A ass, something you see rarely in America due to genetics and lack of workout ethic (ahem, black women).
Notice the roundness and fullness, with little cellulite or folds...when "tapped" it may have a slight "jiggle", just slight--but, it has a solidity to it that comes from, again, genetics and working out. Also notice the split between quad and hams on these girls---very nice, with the hammies, full and round...
Now, this is not like your Brick-Layer, Tons-O-Fun Walmart black chick ass, which has been fed on McDonald's and cheese fries. Which only looks good in tights or tight jeans. No, this is quality ass.
Now, the ones James posted, are good asses, they are everyday asses, ones that one can see everyday, like a gazelle on the African savannah...you notice it and turn your head...then turn back...but then if there African Wild Ass or Zebra, or Quagga (extinct), you have to get your camera... Rhino square asses are not welcome (look to Jessica Simpson's ever elongating ass as an example).
Thus, is the conclusion of a brief synopsis of ass.