Kourtney Kardashian parties with pregnant Chrissy Teigen and Jenna Dewan-Tatum

Girls' night out! Kourtney Kardashian highlights her slim figure in form-fitting velvet jumpsuit as she parties with pregnant Chrissy Teigen and Jenna Dewan-Tatum

Published: 02:42 EST, 23 January 2016 | Updated: 16:16 EST, 23 January 2016

Friday was super fun night for Kourtney Kardashian and her famous gal pals.

The mother-of-three enjoyed some well-deserved down time as she partied with pregnant Chrissy Teigen, Jenna Dewan-Tatum, Minka Kelly, Drake, Kelly Rowland and others for actor Balthazar Getty's birthday celebrations in Los Angeles, California.

Kourtney, 36, was dressed to impress in an all-black outfit, which drew all eyes to her impeccably trim form, for her evening spent partying up a storm at celebrity haunt - The Nice Guy.

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Night on the tiles: Kourtney Kardashian was all dressed up as she was spotted leaving The Nice Guy in Los Angeles, California, on Friday evening

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She's usually a fan of high-end designer garb from the likes of Balmain and Lanvin, but Kourtney Kardashian opted for a far more purse-friendly look on Friday!

The reality TV star partied with Chrissy Teigen wearing a velvet jumpsuit by Topshop's premium line Unique, which she paired with pointed courts and a sleek black clutch.

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She showed off her never-ending collection of clothes as she slipped into an elegant and form-fitting one-piece which was made from a soft-to-touch black velvet.

The jumpsuit featured kick-flare legs while the main body was waist-cinching and cut-out in design.

Although Kourtney was mostly covered up, her décolletage was on display thanks to the low-neck of the outfit.

As was a glimpse of her sexy black lace bra which poked through the top of the garment.

See Kourtney Kardashian news and style as she parties with Chrissy Teigen

Fail-safe style: Kourtney, 36, was dressed to impress in an all-black outfit, which drew all eyes to her impeccably trim form, for her evening spent partying up a storm at the celebrity haunt

Party people: The mother-of-three enjoyed a star-studded night on the town with her pals Chrissy Teigen, Jenna Dewan-Tatum and Minka Kelly among others

Bra-ving the cold: Kourtney flashed a glimpse of her sexy lace bra which she wore beneath a form-fitting velvet jumpsuit

A helping hand: A female friend helped Kourtney out of the hotspot to avoid her tripping over her kick flares in her high stilettos

All partied out: The KUWTK star looked ready for a good night's sleep

Taxi for Kourtney: Although she spent the evening partying with a whole host of famous friends, she headed home alone

Who's that man? Scott Disick's former partner appeared to be hanging around outside the venue with a mystery male companion

Party pals: There was nothing to suggest Kris Jenner's eldest daughter and the anonymous male were romantically linked

The reality star was pictured in a restaurant surrounded by her friends in a cosy Instagram snap, posted on her account during the star-studded evening.

The table showed the obvious signs of a fun time - drinks with black straws swimming in them, half-eaten plates of food and glasses of water.

Chrissy, who is expecting her first child with husband John Legend in the spring, was a spirited one as she beamed her brilliant smile at the lens.

Kiss me quick: While the ladies posed for a girls only snap, Chrissy Teigen's husband John Legend was also at Getty's birthday bash

The Sports Illustrated Swimsuit model wore a black top that exposed one bare shoulder while her hair was gathered up in a coquettish ponytail.

Chrissy happened to be hugging Jenna, who wore red lipstick to match her dark mock turtleneck.

Actress Minka Kelly turned her pretty pout in the direction of the camera while leaning her chin on her hand.

Great night! The couple were full of smiles as they left the Hollywood nightspot together with Chrissy leading the way

All dressed up: The mum to be showed off her whole outfit as she left, with the model rocking daring over-the-knee leather boots

No slowing down: Despite being a few months pregnant, the mother-to-be refused to miss out a fun night with her famous friends

Sticking together: Jenna Dewan Tatum and Minka Kelly were spotted leaving the swanky late-night venue together

In the driving seat: The wife of Channing opted to driver herself home

Following her lead: As did Friday Night Lights actress Minka

The perils of fame: The 35-year-old sneaked out of the party only to be met by a crowd of paps around the corner

Don't look up: The actresses kept their heads down as they battled through the pap pack

Many happy returns! The group of pals posed for a fun photobooth shot as they marked Balthazar Getty's birthday

Popular spot: Kardashian family friend Drake also partied at The Nice Guy on Friday night

Good night? The Hotline Bling rapper headed home with a beaming grin across his face

Anybody who is any body: The worlds of music, film and fashion came together as Kelly Rowland too joined in the celebrations

Smile and wave :She made a cheery entrance into the star-studded birthday bash

While the ladies posed for a girls only snap, Chrissy's husband John Legend was also at Getty's birthday bash.

The happy couple cuddled up as they left the Hollywood nightspot, with Chrissy giggling as she led the way in her daring thigh-high leather boots.

Kourtney's outing came on the heels of her visit to The Ellen DeGeneres Show, during which she discussed the current status of her relationship with Scott Disick.

Party people: Johnny Knoxville and top stylist Rachel Zoe topped off the guest list

Not together...but: Kourtney sat down with Ellen DeGeneres and dished on the situation with her ex and father of her three children, Scott Disick

Confusing: In a preview clip for the show - which airs on Monday - the 36-year-old star said 'Well, we're not together, I feel like every day is different,'

In a preview for the show that will air on Monday, Ellen asked the star about how things were going with Scott to which she replied: 'Well, we're not together, I feel like every day is different.

'But, we're totally getting along, we have three beautiful kids together,' she continued.

'He's family, he'll always be,' she added as the clip ended.

The mother-of-three said of Scott: 'He's family, he'll always be-'

They broke up last summer after a nine-year on-off relationship and three children together.

Kourtney revealed she had been nervous about her TV appearance as she posted a selfie after the taping on Thursday.

In the sultry shot the E! star is seen showing a little bit of cleavage as she gazes at the camera with immaculately applied make-up.

See Kourtney Kardashian news as she gives Ellen a confusing answer about Scott Disick

The E! star said 'we're totally getting along, we have three beautiful kids together' as a snap of the duo flashed up behind them

She captioned the image: 'Why was I so nervous to do @theellenshow today?! She is THE best. Airs Monday!'

Kourtney chose a super glam look for her interview, showing of her toned legs in a sparkling gold shorts suit.

She finished the look with strappy black stilettos and showed off her glossy dark locks in a sleek style.

The mother-of-three opened up about being single on a recent episode of Keeping Up With The Kardashians, saying that the dating life was 'so not' for her.

'Airs Monday!' Kourtney shared a sultry selfie on Thursday night revealing she was nervous about her chat show appearance

Showing off those legs! The E! star looked fabulous in a shimmering gold shorts suit

She ended her relationship with troubled Scott after the 32-year-old was spotted getting cozy with another woman in St. Tropez last year.

They have remained close and are often seen out spending quality time with their children Mason, six, Penelope, three and one-year-old Reign.

It's been a difficult past year for the self-proclaimed 'Lord Disick' as he entered a rehab facility for the latter part of 2015.

In a teaser for Sunday's upcoming episode of KUWTK Kourtney tells cameras 'It's really about him deciding just what kind of life he wants to live.' about her ex.