I'm surprised I haven't heard any Sienna skinny talk over here! (if there's another thread, my sincere apologies. I searched, did not find) Anywho, she's def. one of my biggest girl crushes. I just adore her. She's also around my height (I'm a towering 5'2) which makes for some helpful thinspo. She's also quite beautifully dressed, most of the time. Which I love. Three cheers for SM!