If you thought Kristen Stewart was dressed too sexy at the U.S. premiere of "The Twilight Saga: Breaking Dawn -- Part 2," just wait until you see her London look!

KStew hit the red carpet in a stunning black lace jumpsuit from Zuhair Murad (the same designer she wore in Los Angeles). The look comes from the fall/winter 2012 collection entitled "Skin Flowers."

There was a lot of skin showing through the floral fabric and open back. This is definitely the sexiest look we've ever seen from Kristen. Check out Kristen with costars Robert Pattinson and Taylor Lautner by clicking the "Launch Gallery" button above.

Zuhair's other clients include sexy stars Jennifer Lopez, Blake Lively, and Beyonce.