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Having her cake! Christina Aguilera continues to celebrate birthday in hot pink slip dress... as she plays Real Housewives themed Twister

Published: 22:03 EDT, 19 December 2017 | Updated: 03:08 EDT, 20 December 2017

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On Friday night she celebrated the holiday season in a sexy cowgirl outfit.

And Christina Aguilera, 37, kept the good times going on Tuesday as she posted photos and video of her birthday celebrations to Instagram.

The Beautiful songstress posed for the occasion in a bright pink dress, before partying with friends, including several who participated in a game of Real Housewives themed Twister.

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Pink lady: Christina Aguilera, 37, kept the good times rolling on Tuesday as she posted photos and video of her birthday celebrations to Instagram

The former Mickey Mouse Club starlet rocked a pink dress with a plunging neckline that made the most of the petite popstar's assets.

She paired the skimpy garment with a heavy pink coat and pink heels.

The Ain't No Other Man singer wore her wavy, peroxide blonde tresses untied with an off center part and smokey eye makeup.

Taking the plunge: The former Mickey Mouse Club starlet rocked a pink dress with a plunging neckline that made the most of the petite popstar's assets

Throwback photo: In the video, the Lady Marmalade hitmaker is gifted with a cake featuring her own image wearing her now infamous 'Suck My D**k' T-shirt

In the video, the Lady Marmalade hitmaker is gifted with a cake featuring her own image wearing her now infamous 'Suck My D**k' T-shirt.

The cake is decorated with the words 'Happy Birthday Xtina We Love You!'

The singer's friends then engage in a game of Twister - on a mat adorned with the photos of various Real Housewives Of New York City.

Right hand Bethenny: The singer's friends then engage in a game of Twister - on a mat adorned with the photos of various Real Housewives Of New York City

On Friday, Xtina could be seen on her Instagram Story dressed as a cowgirl, swinging her hips in a Boomerang.

Adding a very racy touch to her outfit, the singer's left breast was exposed by her partly open jacket - though a red pasty kept the Burlesque star within Instagram's Community Guidelines.

Two female friends, who were also decked out in Wild West themed dress, could be seen posing up a storm beside the pop star.

'Ridin' DIRRTY w/ my CowGirls,' wrote Christina in her caption.