Why do girls butts lean from left to right when they walk?

Question

I was walking up the stairs at school one day and i know noticed that a lot of the girls butts were leaning left to right when they walked but this didn't occur with any of the guys so is it like bone structure, or female psychology, or just for attention, or what?

Answer 1

Yes, it's bone structure as well as musculature (physiology, not psychology).  Girls' hip structure is made wider than guys' because later on they will need to have wider hips when giving birth.  Guys have wider shoulders, though, because they need the greater upper-body strength.  Some girls do, however, realize fairly early on that guys are attracted to some rear-action, and try to emphasize it.  But mostly it's going to happen anyway.  

Answer 2

i'm pretty sure its bone structure, because really that's just normal. i'm a girl and i don't try to walk any type of way it just happens. maybe its the hips. But nice question, funny.

Answer 3

It's the way girls attract men into their traps!! Try to resist the tempation and avoid them at all cost.