Kourtney Kardashian turns heads in a skin-tight jumpsuit and chic cape as she makes a glamorous appearance at sister Kim's birthday bash

She's adopted a sexier style since splitting from her partner of nine years, Scott Disick.

And Kourtney Kardashian looked incredible in a figure-hugging ensemble as she attended her younger sister Kim Kardashian's surprise 35th birthday bash at Cinepolis in Thousand Oaks, California on Wednesday evening. 

The 36-year-old reality star pulled out all the stops in her super sexy, all-black outfit as she joined her family members including momager Kris Jenner and half-sister Kendall Jenner at the party.

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Hot mama: Kourtney Kardashian stole the show at Kim Kardashian's 35th birthday bash at at Cinepolis in Thousand Oaks, California on Wednesday evening

Hot mama: Kourtney Kardashian stole the show at Kim Kardashian's 35th birthday bash at at Cinepolis in Thousand Oaks, California on Wednesday evening

Kourtney proved she was in the best shape of her life thanks to her curve enhancing one-piece.

The skimpy garment boasted a cleavage-enhancing scooped neckline and cropped trousers, and was set off by a chic caped coat, worn draped over her shoulders for extra glam effect.

The mother-of-three, who has children Mason, five, Penelope, three, and ten-month-old Reign with her ex - added a pair of elegant heels and an oversized sunglasses.

See more news on Kourtney and the Kardashians at Kim Kardashian's birthday bash 

Femme fatale: The 36-year-old reality star was the picture of elegance as she arrived at the venue to surprise her younger sister 

Femme fatale: The 36-year-old reality star was the picture of elegance as she arrived at the venue to surprise her younger sister 

Busty display: Kourtney's clingy jumpsuit featured a low-cut neckline that made the most of her cleavage

Busty display: Kourtney's clingy jumpsuit featured a low-cut neckline that made the most of her cleavage

Single and ready to mingle: The Keeping Up With The Kardashians favourite has been embracing a sexier style since splitting from Scott Disick
Single and ready to mingle: The Keeping Up With The Kardashians favourite has been embracing a sexier style since splitting from Scott Disick

Single and ready to mingle: The Keeping Up With The Kardashians favourite has been embracing a sexier style since splitting from Scott Disick 

Go for the gold with a Kardashian favorite

Kim's formulaic (but still great!) baby dressing has kaught on like wild fire. Now Kourtney has taken up the all spandex/ trench coat ensemble.

The outfits change, but one thing always stays the same with these women: their love for barely there sandals. And instead of wearing their go-to favorites by Alexander Wang, Kourtney dug out these fur lined beauties from her archives.

So sadly, yes, we must tell you that these Celine heels are now sold out. They are from a few season's past but it just goes to show you how a simple heel can be a timeless accessory.

Barely theres-- for the win!

The chain detail adds an elegant touch to Kourt's monochromatic style. And since we can't get you these exact shoes, we've rounded up a few alternatives in the edit below that'll last you through the years like a reliable black dress.

* PRICES MAY NOT BE AS ADVERTISED

Kourtney blended in with her fellow party-goers as her mum Kris, sister Kylie and Kris' partner Corey had also opted to wear head-to-toe black.

The stunning star has been focusing on her children since parting ways with Scott after growing tired of his party lifestyle.

It was claimed by People last week that Scott had checked into rehab after receiving an ultimatum from Kourtney.

Night on the town: The mother-of-three set off her bodycon look with a smart caped jacket and strappy heels

Night on the town: The mother-of-three set off her bodycon look with a smart caped jacket and strappy heels

Shady lady: The star shielded her eyes from the bright lights with a pair of oversized sunglasses
Shady lady: The star shielded her eyes from the bright lights with a pair of oversized sunglasses

Shady lady: The star shielded her eyes from the bright lights with a pair of oversized sunglasses

Devoted mum: Kourtney has been focusing on raising her three children in the midst of rumours that Scott has checked into rehab

Devoted mum: Kourtney has been focusing on raising her three children in the midst of rumours that Scott has checked into rehab

'He wants to make it stick this time because he has come close to losing everything,' a source told the publication.

The news came as Khloe Kardashian's troubled estranged husband Lamar Odom was fighting for his life following an alleged overdose at a brothel last month, but he has since woken from his coma.

Khloe skipped Kim's birthday bash to remain by Lamar's bedside at Cedars Sinai hospital in West Hollywood amid new reports the onetime basketball great 'isn't doing that well'.

Family time: The Kardashian clan rallied together in the wake of Khloe's estranged husband Lamar Odom being admitted to hospital after an alleged overdose 

Family time: The Kardashian clan rallied together in the wake of Khloe's estranged husband Lamar Odom being admitted to hospital after an alleged overdose 

Back to business: While the rest of the family attended Kim's birthday, Khloe remained by Lamar's bedside 

Back to business: While the rest of the family attended Kim's birthday, Khloe remained by Lamar's bedside 

Earlier in the day it was revealed the couple had moved to withdraw the court papers that would end their marriage and that a judge had granted the request.

'Lamar isn't doing that well,' a source told Us Weekly, amid reports he might have to undergo a kidney transplant.

'He can't stand up by himself. (Khloe) is still very worried about him and uncomfortable with leaving.  

Happy birthday! Kim and her husband Kanye West were the last to arrive at the surprise party 

Happy birthday! Kim and her husband Kanye West were the last to arrive at the surprise party 

He goes everywhere with her! Kylie Jenner, 18, brought her rapper boyfriend Tyga along as her date 

He goes everywhere with her! Kylie Jenner, 18, brought her rapper boyfriend Tyga along as her date 

A vision in white: Kendall Jenner looked every inch a model in a daring outfit that consisted of a knotted T-shirt and skinny skirt with strappy black heels
A vision in white: Kendall Jenner looked every inch a model in a daring outfit that consisted of a knotted T-shirt and skinny skirt with strappy black heels

A vision in white: Kendall Jenner looked every inch a model in a daring outfit that consisted of a knotted T-shirt and skinny skirt with strappy black heels

Love in the afternoon: Kris Jenner, 59, walked in with her boyfriend Corey Gamble

Love in the afternoon: Kris Jenner, 59, walked in with her boyfriend Corey Gamble

Well hello: Later on, Caitlyn Jenner showed up wearing a tight black dress and high heels

Well hello: Later on, Caitlyn Jenner showed up wearing a tight black dress and high heels

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