Tamara Ecclestone rocks festive onesie for elaborate Frozen-themed NYE with sister Petra Stunt and sweet daughter Sophia, 2, in Gstaad

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She has been enjoying a fun-filled skiing holiday in Gstaad with her husband Jay Rutland and daughter Sophia over the last week.

But Tamara Ecclestone geared up to celebrate the New Year with her whole family on Saturday as she was joined by sister Petra Stunt in snowy Switzerland.

The 32-year-old heiress took to Instagram to upload a sweet snap of her and her sibling, 28, rocking festive onesies as they prepared to ring in 2017 with their children at an elaborate Frozen-themed party. 

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Family affair: Tamara Ecclestone geared up to celebrate the New Year with her whole family on Saturday as she was joined by sister Petra Stunt (left) in snowy Switzerland

Fetsive fun: The sisters prepared to ring in 2017 with their father Bernie Ecclestone and Tamara's sweet daughter Sophia (above) at the elaborate Frozen-themed party

Posing beside a fir tree with the stunning mountainous view in the background, the sisters looked happy to be reunited for the big celebration after Tamara left London for the ski resort almost two weeks ago. 

It was certainly easy to tell the two beauties were sisters as they sported co-ordinating festive clothing for the bash with their extended family.

Tamara opted for a bright red fair isle number, before adding a thick khaki parka and a set of fluffy boots on top for extra warmth against the freezing temperatures.

Loved-up: Clearly excited for the night ahead, Tamara shared further sweet snaps of her and husband Jay (above) in front of an elaborate ice sculpture at the bash

Accessorising with a grey woolen hat and leaving her face mostly bare, the model's stunning complexion was clear to see as she documented the evening spent with her sis.

Meanwhile Petra's outfit was of a grungier style as she kept comfy but cool in a red and black checked look, teamed with matching black coat, boots and hat. 

While Tamara has been skiing all week with her city trader husband, 35, and adorable two-year-old, Petra has not been seen at the luxury lodge belonging to their father Bernie Ecclestone until now - implying she had jetted over to celebrate the New Year with her family.

Like a duck to water: After teaching her to ski this week the couple experienced another first with their daughter Sophia on Saturday after they took her ice-skating in the winter hotspot

Keep up with Tamara in her Moncler parka

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Tamara Ecclestone is currently enjoying a winter getaway in Switzerland with her family and was spotted out and about with her daughter Sophia and hubby Jay.

Keeping cozy, Tamara sported a fur trimmed parka for the occasion, which she styled with black leggings and a beanie hat.

Tamara has an enviable outerwear collection and has several parkas in her wardrobe. This one’s from Moncler and is available to buy online now with a click to the right. Sure, the price tag is pretty hefty but it’s a timeless piece you’ll be wearing throughout this winter and for many more years to come.

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Clearly excited for the night ahead, Tamara shared further sweet snaps of her and Jay in front of an elaborate ice sculpture at the bash, which was no doubt a source of excitement for little Sophia.

After teaching her to ski for the first time, the loved-up couple had experienced another first with their daughter, who was born in March 2014, earlier that day after they took her ice-skating in the popular winter hotspot. 

Taking to Instagram once again, the brunette beauty shared an adorable photo of her supporting her youngster, who was dressed in a sweet fur jacket and a faux blonde plait, in the style of Frozen's princess Elsa.

Best friends: The brunette shared an adorable photo of her supporting her youngster, who was dressed in a sweet fur jacket and a faux blonde plait, in the style of Frozen's princess Elsa

Horsing around: Later that day the fun only continued for Sophia, who was then seen excitedly playing around in the town square with a hobby horse

Laughing animatedly behind her trademark sunglasses, the two-year old looked delighted to be on the ice for the first time in the snap captioned: 'Baby steps'.

Later that day the fun only continued for Sophia, who was then seen excitedly playing around in the town square with a hobby horse.

Tamara herself however had certainly got into the spirit ahead of her New Year's Eve festivities earlier on Saturday, as she donned a coat of gold body glitter for a sultry photoshoot.

Golden girl: Tamara previously got into the spirit ahead of her New Year's Eve festivities by donning a coat of gold body glitter for a sultry photoshoot

Completely nude with the exception of the body paint, the socialite was a vision of beauty in the shots. 

Facing away from the camera, Tamara exposed her bare back as she arched her slender physique, carefully positioning her arm to protect her modesty. 

She captioned the shot: Wishing you all a happy healthy peaceful New Year filled with lots of love.' 

For a second snap she gazed seductively down the lens whilst her pretty features were framed with flecks of glitter. 

All that glitters: Completely nude with the exception of the body paint, the 32-year-old socialite was a vision of beauty in the stunning shots 

Accentuating her baby blue eyes, she donned a thick rim of kohl, whilst her plump pout bore a slick of bronze gloss.  

Her glossy tresses were left loose and tousled in big bouncy curls as she posed up a storm on the shoot. 

 'All that glitters is gold': she captioned the stunning snap.

Family fun: Tamara is are currently in Gstaad, Switzerland - staying at her father Bernie Ecclestone's luxury lodge with her family