Just one month before Paris Fashion Week, cosmetics creative director of La Beauté Louis Vuitton Pat McGrath is teaming up with the House’s artistic director Nicolas Ghesquière once again. Except, this time, she’s not the only one on makeup. “Nicolas and I have been building looks together backstage at Louis Vuitton for so many years now,” Pat McGrath said in a press release. Since 2013, when Ghesquière first arrived at Louis Vuitton, the two h…