The TOWIE star shunned her usual glam gowns for a sophisticated one-piece as she stepped out at the UK Lingerie Awards, held at the Freemasons' Hall in London.
Her 'Ferne' jumpsuit, £85, features a saucy keyhole detail to reveal a hint of cleavage, plus glitzy embellishment around the waist and an open back.
Jess opted for an all-black colour scheme, teetering along in patent heels while toting a swoon-worthy quilted Chanel bag.
And while we're used to seeing the starlet with oodles of tumbling locks framing her face, this time she styled her barnet in a middle parting before sweeping into a low pony.
We're loving her eye make-up too - feline liner, mega-watt falsies and tons of kohl pencil? Yes please!
The awards ceremony celebrated the undies industry, and a whole host of celebs turned out to show their support including Georgia Salpa and Chloe Sims and Frankie Essex.
Jess was also joined on the pink carpet by Carol Wright and Nanny Pat, who looked equally gorgeous in their colourful frocks.
Fab work, ladies!
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