'I'm gonna smash it!' Lauren Goodger slips into lingerie for pre-weight loss selfie before filming derriere during workout... as she vows to regain her 'big butt' in 2017

She has kept her weight gains and losses well documented. 

And Lauren Goodger is once again sharing the intricacies on her physique with her followers as she stripped off while vowing to shed her festive weight gain on Instagram on Monday evening.

The 29-year-old TOWIE star stripped down to her lingerie for a smouldering selfie before sharing a short video depicting her derriere in the gym - as she vowed to get back into shape while enhancing her posterior in 2017.

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'Pre-bod': Lauren Goodger is once again sharing the intricacies on her physique with her followers as she stripped off while vowing to shed her festive weight gain on Instagram on Monday evening

After soaring to fame on the ITVBe show, Lauren, who lost four stone before releasing a workout video in 2015, became famed for her love of selfies, in which she often stripped off to show off her curves.

And the reality star is back to her best as she took to the photosharing site to share a sizzling snap, in a black bralet and high-rise knickers while allowing a towelling robe to fall off one shoulder. 

Pulling her signature pout, the star looked extremely satisfied yet she admitted in the caption, the image was something of a 'before' shot, as she wrote: 'Pre body post! Fit trim Jan #fitness #laurengoodger #getbodyconfidentwithLG'. 

Clearly pumped to hone her already sensational form, Lauren then took to the gym to begin work on her body, where she threw herself into some serious exercise.

Hello Miss Goodger! The 29-year-old TOWIE star stripped down to her lingerie for a smouldering selfie before sharing a short video depicting her derriere in the gym - as she vowed to get back into shape in 2017

Working it on out: Enlisting the help of her spa-mate to film her workout, the blonde beauty showed off her shapely posterior while pumping iron while rocking tight leggings and a tiny bralet

Enlisting the help of her spa-mate to film her workout, the blonde beauty showed off her shapely posterior while pumping iron while rocking tight leggings and a tiny bralet. 

She added the inspiring caption: 'I've lost my curve through Dec and now Jan I'm going smash it ! #watchthiaspace #bigbutt #fatgonecurvey #respect #today #2ndJan #bodycondifdentwithLG #yeezys #posevid #weightsdrop #likeitshawt'. 

Despite her best intentions, it seems the allure of a Monday evening tipple proved too great for the stunner as she Tweeted that she had indulged in alcohol with dinner. 

She wrote: 'I had champagne and wine with my dinner. Does that mean I've failed dry January already' - in reference to the popular abstinence period at the start of the year.  

What a difference! Lauren wowed fans in December 2015 when she showed off her staggering four stone weight loss and released her top-selling fitness tape, OMG! Workout DVD

Failed already? Despite her best intentions, it seems the allure of a Monday evening tipple proved too great for the stunner as she Tweeted that she had indulged in alcohol with dinner

Lauren wowed fans in December 2015 when she showed off her staggering four stone weight loss and released her top-selling fitness tape, OMG! Workout DVD.

However in recent months, Lauren confessed she was on a mission to slim down again after exhibiting a fuller frame.

Revealing that she had already shed six pounds, she wrote in her new! magazine column in September: 'They say you should stick a picture of someone who is your body idol on your fridge - my DVD is mine!'

Her determination to enhance her posterior comes hot on the heels of claims that the star had undergone surgery to help boost her rear-facing assets. 

Way back when: After soaring to fame on the ITVBe show, Lauren, who lost four stone before releasing a workout video in 2015, became famed for her love of selfies, in which she often stripped off to show off her curves

Lauren, who made her big return to the ITVBe reality show after leaving in 2012 following six seasons, was pictured showing off a fuller derriere leading to accusations.

Yet she made the resounding statement that she had merely gained weight rather than undergone cosmetic enhancement.

She said: 'I have not had bum implants or another boob job. Yet my bum is bigger but it's because I've gained weight and been training my bum with weights so it looks bigger. 

Now it seems her concerns lie in her losing the shape she gained - leading to her New Year resolution to enhance her bottom. 

Wowzers! Lauren's body has evolved throughout her seven years in the spotlight

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