Kourtney Kardashian joins glam-sister Kim with John Legend's 40th birthday

She rarely sets a wrong foot when it comes to her daring fashion choices.

And Kourtney Kardashian insisted that all eyes were on her when she joined her on Saturday night at John Legend's tenth birthday in James Legend as a forty-year birthday present in Los Angeles, California.

The KUWTK star, 39, got the attention when she stepped into a breaking halterneck bralet and flashed a hint of her twisted cleavage.

Starry: Kourtney Kardashian ensured that all eyes were on her when she joined Sister Kim on Saturday with John Legend & # 39; s James Bond theme as 40th birthday in Los Angeles, California

Starry: Kourtney Kardashian ensured that all eyes were on her when she joined Sister Kim on Saturday with John Legend & # 39; s James Bond theme as 40th birthday in Los Angeles, California

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Counterfeit androgynous chic during her night out, the mother of the three wore satin skintight pants and a tuxedo blazer, which she slid over a shoulder.

The TV personality attracted attention as she lifted her slender physique into a pair of black heels with strappy.

Kourtney wiped her raven hairs into a slender ponytail to reveal her stunning features, reinforced with a smoldering smokey-eye look.

Snicky! The KUWTK star, 39, had attracted attention when she stepped into a winding halterneck bralet and a hint of her perky cleavage flashed

Snicky! The KUWTK star, 39, had attracted attention when she stepped into a winding halterneck bralet and a hint of her perky cleavage flashed

Snicky! The KUWTK star, 39, had attracted attention when she stepped into a winding halterneck bralet and a hint of her perky cleavage flashed

Style-conscious: jeans and androgynous chic on her night out, the mother of the three-tailoring satin close-fitting trousers, combined with a tuxedo blazer, which she slid over one shoulder

Style-conscious: jeans and androgynous chic on her night out, the mother of the three-tailoring satin close-fitting trousers, combined with a tuxedo blazer, which she slid over one shoulder

Style-conscious: jeans and androgynous chic on her night out, the mother of the three-tailoring satin close-fitting trousers, combined with a tuxedo blazer, which she slid over one shoulder

Style-conscious: jeans and androgynous chic on her night out, the mother of the three-tailoring satin close-fitting trousers, combined with a tuxedo blazer, which she slid over one shoulder

Style-conscious: jeans and androgynous chic on her night out, the mother of the three-tailoring satin close-fitting trousers, combined with a tuxedo blazer, which she slid over one shoulder

Wow factor! The TV personality attracted attention as she lifted her slender physique into a pair of black heels with strappy

Wow factor! The TV personality attracted attention as she lifted her slender physique into a pair of black heels with strappy

Wow factor! The TV personality attracted attention as she lifted her slender physique into a pair of black heels with strappy

The temperatures that were high in the evening were her sister Kim, 38 years old, who exuded sex appeal in an effervescent lace robe by Alexander Wang.

The entrepreneur, who reportedly expected her fourth child via surrogate, showed her décolleté with the spicy design of the keyhole of the ensemble.

With her locks styled in loose waves, the wife of rapper Kanye West finished her look with lashings of mascara, heavy stripes bronzer and nude lip gloss for the perfect pout.

Radiant: Kourtney wiped her raven hairs into a slender ponytail to reveal her stunning features, which were enhanced with a smoldering smokey-eye look

Radiant: Kourtney wiped her raven hairs into a slender ponytail to reveal her stunning features, which were enhanced with a smoldering smokey-eye look

Radiant: Kourtney wiped her raven hairs into a slender ponytail to reveal her stunning features, which were enhanced with a smoldering smokey-eye look

Radiant: Kourtney wiped her raven hairs into a slender ponytail to reveal her stunning features, which were enhanced with a smoldering smokey-eye look

Radiant: Kourtney wiped her raven hairs into a slender ponytail to reveal her stunning features, which were enhanced with a smoldering smokey-eye look

Radiant: The brunette appeared cheerful when she joined a male friend as she left the event

Radiant: The brunette appeared cheerful when she joined a male friend as she left the event

Radiant: The brunette appeared cheerful when she joined a male friend as she left the event

In good company: the star was in a happy mood when she went to work with close friend and hairdresser Jen Atkin

In good company: the star was in a happy mood when she went to work with close friend and hairdresser Jen Atkin

In good company: the star was in a happy mood when she went to work with close friend and hairdresser Jen Atkin

In good company: the star was in a happy mood when she went to work with close friend and hairdresser Jen Atkin

In good company: the star was in a happy mood when she went to work with close friend and hairdresser Jen Atkin

The star treated her fans for a glimpse of the birthday party on her A-list on her Instagram account, with the entrance to the room decorated with a gold & # 39; 040 & # 39; -sign.

John's wife Chrissy Teigen, 33, also shared a stunning look of her preparations, putting on a metal gold strapless dress.

Earlier that evening Kim showed her striking look for her 124 million Instagram followers.

Racy: The temperatures that were high in the evening were her sister Kim, 38 years old, who radiated sex appeal in a sizzling lace dress by Alexander Wang

Racy: The temperatures that were high in the evening were her sister Kim, 38 years old, who radiated sex appeal in a sizzling lace dress by Alexander Wang

Racy: The temperatures that were high in the evening were her sister Kim, 38 years old, who radiated sex appeal in a sizzling lace dress by Alexander Wang

Ooh-la-la: The entrepreneur, who reportedly expected her fourth child via surrogate, showed her décolleté with the spicy design of the keyhole of the ensemble

Ooh-la-la: The entrepreneur, who reportedly expected her fourth child via surrogate, showed her décolleté with the spicy design of the keyhole of the ensemble

Ooh-la-la: The entrepreneur, who reportedly expected her fourth child via surrogate, showed her décolleté with the spicy design of the keyhole of the ensemble

Stunning: the rapper Kanye West's wife rounded off her look with lashings of mascara, heavy bronzer and nude lip gloss for the perfect prill

Stunning: the rapper Kanye West's wife rounded off her look with lashings of mascara, heavy bronzer and nude lip gloss for the perfect prill

Stunning: the rapper Kanye West's wife rounded off her look with lashings of mascara, heavy bronzer and nude lip gloss for the perfect prill

Stunning: the rapper Kanye West's wife rounded off her look with lashings of mascara, heavy bronzer and nude lip gloss for the perfect prill

Stunning: the rapper Kanye West's wife rounded off her look with lashings of mascara, heavy bronzer and nude lip gloss for the perfect prill

The reality star showed the look in a short clip, starting with: & # 39; I wish you could see this look. & # 39;

It is like a bodysuit in a whole situation, & # 39; she continued. Bedankt Thank Alexander Wang for making this (dress). & # 39;

She continued in another short story video that she had a busy night & # 39; for her.

Having fun: Kourtney smiled when she went to the event with her group of friends

Having fun: Kourtney smiled when she went to the event with her group of friends

Having fun: Kourtney smiled when she went to the event with her group of friends

I wish you could see it, but I'm in San Francisco, go to a party and then go back to L.A. to take it to another party, & # 39; she said.

"So it will be a busy night," she added.

Earlier this week Kim flashed her new set of diamond grillz on Instagram, which led to some backlash from fellow social media users, with Yahoo! Entertainment that captures a number of malicious comments.

Lavish: The star treated her fans for a glimpse of the A-list party, with the entrance of the hall decorated with a gold & # 39; 040 & # 39; sign, in honor of the singer John & # 39; s birthday

Lavish: The star treated her fans for a glimpse of the A-list party, with the entrance of the hall decorated with a gold & # 39; 040 & # 39; sign, in honor of the singer John & # 39; s birthday

Lavish: The star treated her fans for a glimpse of the A-list party, with the entrance of the hall decorated with a gold & # 39; 040 & # 39; sign, in honor of the singer John & # 39; s birthday

Shining: John's wife Chrissy Teigen, 33, also shared a stunning look of her preparations, and donned a metal gold strapless dress

Shining: John's wife Chrissy Teigen, 33, also shared a stunning look of her preparations, and donned a metal gold strapless dress

Shining: John's wife Chrissy Teigen, 33, also shared a stunning look of her preparations, and donned a metal gold strapless dress

Meanwhile, the beauty magnate recently revealed that she was originally scheduled to have her own Barbie doll before the deal came to an end.

The 41-year-old husband, Kanye, turned out to be the loving husband and came into contact with Barbie manufacturer Mattel and had them make a Barbie prototype that was made especially for her.

The doll was based on one of Kim's eye-catching 2011 looks, with a black dress with a translucent top and a textured skirt.

Look at me! Earlier that evening Kim showed her striking look for her 124 million Instagram followers

Look at me! Earlier that evening Kim showed her striking look for her 124 million Instagram followers

Look at me! Earlier that evening Kim showed her striking look for her 124 million Instagram followers

Busy: she continued in another short video with Instagram stories that she had a busy night & # 39; for her

Busy: she continued in another short video with Instagram stories that she had a busy night & # 39; for her

Busy: she continued in another short video with Instagram stories that she had a busy night & # 39; for her

Sparkle: earlier this week Kim flashed her new set of diamond grillz on Instagram, which led to some backlash from fellow social media users

Sparkle: earlier this week Kim flashed her new set of diamond grillz on Instagram, which led to some backlash from fellow social media users

Sparkle: earlier this week Kim flashed her new set of diamond grillz on Instagram, which led to some backlash from fellow social media users

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