By Jessica Earnshaw for MailOnline
Published: 04:13 EST, 29 August 2014 | Updated: 06:29 EST, 29 August 2014
She has regularly been pictured heading to the gym after returning from New York City with her Made In Chelsea cast earlier this month.
And it looked like all Lucy Watson's hard work was paying off on Thursday, when she made the most of her incredibly trim midriff for a session at Chelsea's Heartcore studio.
The reality star chose the tiniest of tops as she chatted away on her phone, while attempting to stay under the radar by keeping her hood firmly up.
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Hoods up: Lucy Watson's toned tum was impossible to miss when she stepped out in Chelsea on Thursday
The outspoken beauty's grey hoodie swamped her slim shape, while her grey and neon green number displayed her stomach perfectly.
She teamed her work-out gear with cropped black leggings and and pink trainers, while sporting the all-important dark sunglasses.
Lucy was seen sipping on a post work out drink Everything But The Cow – a natural protein drink to aid with recovery and stay in shape.
Gossip girl: The Made In Chelsea regular was photographed leaving Heartcore Pilates studio in a tiny two-tone crop top
Thirsty work: The brunette beauty sipped on a protein drink after teaming her grey and neon green top with a baggy hoodie
Lucy shared a snap with her online followers as she posed in her skimpy Lycra later in the day, captioning it: 'Say whaaaat @SoHeartcore'.
She previously wrote: '3rd most influential tweeter. #illtakeit', after the Evening Standard reported she was one of the significant social media users in the capital.
The Prime Minister David Cameron and Stephen Fry found themselves placed below Lucy and co-star Jamie Laing.
Strut: Lucy left her long tresses down after opting for a pair of black cropped leggings and pink trainers
Shady lady: The star carried a large black handbag for all her work-out gear inside
Impressive: Later in the day, Lucy posted this snap on her Twitter page, captioning it: 'Say whaaaat @SoHeartcore'
Meanwhile Ricky Gervais and Caitlin Moran took first and second place respectively in the study released on Thursday.
The newspaper stated that the list, compiled by social data analysts PeerIndex, looked at 1.1 million accounts based in London and measured how many times their posts were retweeted, favourited, mentioned and replied to.
London mayor Boris Johnson was placed 27th, and Labour leader Ed Miliband 21st.
Cool and casual: Lucy's MiC co-star and pal Riley Uggla was also seen out and about in London, where she was photographed leaving Victoria station
In a hurry? The E4 newbie clutched a large bag, after opting for wedged trainers and a sleeveless jacket
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