They’re the talk of the front row. It was a sighting that had the fashion world agog — billionairess Lauren Sanchez-Bezos caught walking into the Christian Dior couture show in Paris in January , uber-stylist to the stars Law Roach at her side. The appearance of the unlikely twosome together, the bust-flaunting Sanchez-Bezos dressed in demure head-to-toe vintage Dior —a signature Roach riff — confirmed what until then was barely even a whisper: that Sanchez-Bezos had employed Roach for a