The online fitness guru joined her beau and a host of other famous faces - including Sarah-Jane Crawford and Les Miserables star Samantha Barks - while attending the Tateossian and David Furnish party at Ronnie Scott's Jazz Club in London.
And making sure she was dressed to impress for the occasion, Lucy looked oh-so-glam in her tailored getup.
The former TOWIE star oozed a vintage vibe as she teamed a pair of white tailored trousers with a matching crop top that bared her enviable and super-bronzed tum and a pair of nude court heels.
Lucy then added a touch of 1920s glamour to her outfit, sporting a feathered bolero over her shoulders. She toted her evening's essentials in a stylish box clutch, sweeping her shoulder-grazing locks back from her face into a sleek updo.
Arriving hand-in-hand with her Olympic medallist boyfriend Louis, the pair looked picture perfect as they posed for waiting photographers. And making sure not to be outdone by his other half, Louis looked incredibly dapper in a three-piece suit and tie.
En route to the fashion party, Lucy shared a gorgeous selfie of the pair as they cuddled up together in the back of their car. While at the event the pair rubbed shoulders with the other guests as well as enjoying an array of cocktails. Sharing a snap of herself and Louis' tasty looking drinks, she told fans: "Sunday sips with @louissmith1989"
The pair's outing together comes after Louis recently joined Lucy at her Pretty Little Thing fashion launch. The 24-year-old models the online fashion house's SS15 range and she and Louis put on a loved-up display while celebrating the launch of the new line.
The couple have often been seen looking oh-so-smitten together since confirming their romance earlier this year. Following speculation the pair were dating, Lucy finally came clean that Louis was her "boyfriend" on social media, sharing a photo of herself and her beau kissing.
Since getting together their romance has gone from strength to strength and rumours have surfaced that marriage could be on the cards for the pair.
While we would love to see the couple walking down the aisle, Louis was quick to dismiss rumours of an engagement while appearing on Loose Women recently.
Addressing his girlfriend on camera, he said: "I'm sorry to disappoint you Lucy but we're not getting engaged yet."
Although the GB athlete admitted he was in rush to pop the question, there's no denying he is besotted with Lucy. Gushing about his girlfriend, he told the panel: "She's gorgeous. She's hard not to like."
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