I'ma thinking she has to be one of the other " Feys" from the Fey sisterhood of sites and models .
I.E. Katie Fey, Felicity Fey, Kristina Fey, etc. - ...........
The official site of Kristina Fey is http://kristinafey.com/english/?bill=def , but this will not help much. I don't know who the other girl, which is together with Kristina Fey is, is.