Ass and Sex

I'm surprised to enjoy Coffee Prince so much (I know I'm late to the party). One thing that bugs me though is the media's continued ignroance about the sex difference in ass size. Women have more shapely asses than men - you learn that at health ed. (or whaterver they call it these days) at grade school. So why on earth have the male lead comment on the small ass the female lead (who he thinks is a man) has when the evidence on screen doesn't warrant that comment? And why did Sorority Boys have Michael Rosenbaum's character worry about his fat ass when MR had to put on prosthetics in that scene to make his ass even visible on screen?

Rant mode off. BTW, hope this post doesn't get filtered out because of the title...