Well, the dress has been found ... to be a fake!
The thief who took the gown says he took the dress from Lupita's room at The London after finding the door ajar.
[Image via WENN.]
So cute, so innocent.
We hope it lasts!
The girls looked beautiful in bold red Badgley Mischka gowns with their long dark hair trailing down their backs.
Kendall was definitely the more risque of the two in a beaded cap-sleeve gown with a keyhole cut-out at the bust, while Kylie looked demure in her sleeveless dress. That is, until she turned around to reveal a draped open back!
Check out more pics of the sisters in the gallery (below)!
[Image via Andres Otero/WENN.]