Why do men stare at a woman's butt?

Anonymous
I am pretty sure this has been asked before but I wanted to get an opinion anyway.

So every time I wear a short dress, skirt or pants that hug my butt... I know for a fact men stare at my rear. No, I don't have a humongous butt and I am aware that I possess a curvy, well shaped butt. I am asking this to get an idea what exactly is it men are thinking when they are staring at it.
Why do men stare at a woman's butt?
26 Opinion