Wearing a pink top, black skin-tight shorts and a wrap-around matching black cardigan, Lucy raises one outstretched leg to the ballet barre while standing on tip toe on the other.
"Ballet Workouts coming soon to @resultswithlucy," she wrote alongside the image.
The brunette beauty launched her fitness programme Results With Lucy earlier this year, and just last month extended it with BootyCamp, a girls-only boot camp.
Lucy credits her amazing body to tough workouts and a balanced diet, and in her personal training DVDs, the television star encourages followers to break a sweat.
With the addition of ballet to her other workout techniques – boxing, dance and martial arts – Lucy is clearly keen to change up her routine and take on requests.
"MORNING!! Day 2 filming for @Resultswithlucy .. Let me know if u have any requests! Xx," wrote the star on Thursday.
Lucy also took to Twitter to thank her fans for their support, following the season finale of TOWIE on Wednesday night. In the episode, a confused Lucy is filmed talking to her former boyfriend Mario Falcone, who confesses that his new girlfriend Pascal is not the one and that he's still in love with Lucy.
Earlier in the episode, Lucy is seen talking with her boyfriend Tom Pearce, who reveals that the last couple of months have been "pointless" because Lucy clearly hasn't gotten over her ex-boyfriend.
"What a finale! Thanks for all your lovely messages.. I'm enjoying some time on my own at the mo & my main priority right now is my career! X," wrote Lucy.