Battle of the FAIREST with BACKLESS WHITE: Who wore it best, Kim or Rihanna?

Who wore white best or who exposed her backside best between the above A-listers? Kim is obviously blessed with a nice behind (or is it with botox). More candid photos after the cut

You can click here to see Kim's bare frontal exposing all her fundimendolz

or

"You have raised both legs but I cant see them"