The magnetic pull from the north pole.

They drink a lot more FOSTER'S LAGER® than the other women of Planet Earth.

+5

Must be radiation from the UFO that landed at Ayers Rock a few years back.

when you go down under your body fat switches from your bottom to your top

gravity would pull south american women equally. so, not that. prostitution is unique to australia? no? beer? it's everywhere! since australia was only "recently" colonized, darwinian theory hasn't had a chance to take off yet.

so why? it's a plot by the supreme kangaroo council to lull us into complacency so that when they attack, we'll be, ummm, caught with our mouths full.

I think its due to Austrailia was previously a prison colony and what do thieves and thugs like? Answer prostitutes and what do they like in their prostitutes large breasts. Evolution made simple.

Good for them. Maybe kangaroo meat makes your boobs grow. It could also be because they spend their time upside down and driving on the wrong side. That probably exerts a pull on your body fat, moving it to the top.

Do Australian men have bigger chests and smaller penises?