Fighting fit! TOWIE's Lauren Goodger hits bootcamp to lose a few more pounds (but even a tough workout can't shift that pout)

By Sarah Bull

Fighting fit! TOWIE stars Lauren Goodger and Frankie Essex hit bootcamp in Marbella this week to help them lose weight

She's been working hard to shift the pounds over the past few months.

And after successfully losing over a stone on The Cambridge Diet, Lauren Goodger has hit bootcamp in Ibiza to fast-track her remaining weight loss.

The Only Way Is Essex star, 25, was joined by castmate Frankie Essex as the pair sweated it out at the No 1 Boot Camp in Marbella.

Glam even while working out! Lauren wore a pair of aviator sunglasses with her carefully coordinated gym outfit

The pair were seen jogging along in the sunshine with a personal trainer, apparently finding the run more than a little tough.

But despite the extreme conditions of the workout, jogging in the 25C heat, nothing could shift Lauren's now trademark pout from her face.

The reality star even accessorised her outfit with a pair of aviator sunglasses to add that bit of much-needed Essex glamour.

You can do it! Frankie pushed herself hard as the pair ran up a hill with a personal trainer from the bootcamp

Careful! At another point, Frankie had to run carefully over a line of boxes in a special bootcamp exercise

Lauren wore a pink bra top, low-slung grey jogging bottoms and a matching pink pair of trainers along with a vest top emblazoned with the boot camp logo as she pounded the roads.

Meanwhile, Frankie, who appeared to be pushing herself extremely hard on the bootcamp, wore a pair of cropped black trousers, with her blonde hair scraped back from her face.

Lauren yesterday tweeted that she was thrilled with the results of the bootcamp, writing on her Twitter page: 'Goodbye @No1bootcamp I've got 6 pounds in 4 days I worked hard n feel great looking forward continuing @CambsWeightPlan when bk x'

Nothing can shift that pout! Despite the fact she was pushing herself at bootcamp, Lauren's pout never faltered

And Frankie added: 'Okay so bootcamp was http://amazinelle.com I 100% ain't a drinker...! So I think sunbathing is a little me today x'

Yesterday, Lauren treated her fans to a shot of her newly-flat stomach in a shot posted to her Twitter page.

In March, yo-yo dieter Lauren embarked on the strict Cambridge Weight Plan, after creeping from a size 8 to a 14 within a year.

Night out: Yesterday evening, Lauren and Frankie hit the town in Puerto Banus with their TOWIE castmates

The diet involves eating specially prepared meals, shakes and soups - and the ultimate challenge of cutting out coffee, tea and alcohol.

Lauren was inspired to lose weight after seeing holiday pictures of herself looking heavier in Miami when she was on holiday in March.