We know that Sienna Miller has totally submerged herself in the role of ’60s wild child Edie Sedgwick for the movie Factory Girl, but her romping around with Lisa Seifert here in what appears to be a still from the lesbian version of Brokeback Mountain for the Pirelli calendar comes as a delightful surprise. And there’s VIDEO and more photos at Egotastic, bless its heart. It seems Miller has not only eschewed Jude, she’s also mislaid all of her clothes.