Just 'cause she's hot. And she's flashing her tongue. I have a girl-crush on Megan Fox. I do not like the Marilyn Monroe tattoo though, I find it uninspired and unoriginal.
Now on the other end of the stick (literally) is Natalie Portman. C'mon... you know this chick lives on nuts and berries. And if you click on the picture you can see a tiny, skinny, little nipple peeking out of her dress, balanced precariously on her nonexistent breast.