The actress stepped out in this baroque style dress which featured a woven gold front, hundreds of tiny red crystals and sheer sleeves that showed off her gym-honed arms.
Jess ditched yesterday's thigh-high boots and teamed the absolutely stunning number with a pair of brown strappy sandals that boasted a chunky block heel and gave off the perfect summer vibe.
When it came to her hair and make-up, the American star made like reality beauty Kim Kardashian and slicked her brunette lengths back into a wet-look style that was offset by a severe centre parting. She thew on a pair of show-stopping drop earrings to boot which made her sparkle under the flashbulbs.
Jessica vamped it up even more with a heavy slick of burgundy lipstick and lashings of copper-toned bronzer as she posed alongside Balmain creative director Oliver Rousteing, whose celeb BFFs include Kendall and Kylie Jenner.
The mum-of-two who descended on the French Capital for Fashion Week, rubbed shoulders with the rest of the Parisian style elite at the glitzy bash which saw them sipping on cocktails and indulging in canapés throughout the evening.
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!