Pregnant Kim Kardashian's cleavage steals the show in semi-sheer top as Kourtney cuts a smart figure in tailored trousers at Olivier Rousteing's star-studded party
Despite being eight months pregnant with her second child, Kim Kardashian proved she's not giving up the glamour just yet as she led the A-list arrivals at Olivier Rousteing's star-studded birthday bash on Friday evening.
While Kim, 35, allowed her killer cleavage to take centre stage, older sister Kourtney, 36, favoured a business-style theme in a nod to the Balmain creative director's aesthetic as the duo attended his party which was held at a private residence in Los Angeles, California.
The Keeping Up with the Kardashians star stuck to her fail-safe maternity style as she squeezed her curves into an all-black outfit which concealed her growing baby bump but revealed her ample breasts.
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Sister act: Pregnant Kim Kardashian and older sister Kourtney led the galmour at Olivier Rousteing's star-studded birthday party in Los Angeles, California, on Friday
The mother-of-one's outfit comprised a long-sleeved semi-sheer top beneath which she wore a plain black bra.
The bottom-half was a bodycon garment which reached to just below her chest.
She added a pair of pointed and heeled boots and offered herself some coverage in the form of a long tailored black cape-style coat.
See more of the latest news, pictures and pregnancy updates on Kim Kardashian
Eye-popping display: Kim's pert cleavage took centre stage as she squeezed it into a semi-sheer top
All-black everything: The Keeping Up with the Kardashians star stuck to her fail-safe maternity style as she squeezed her curves into an all-black outfit which concealed her growing baby bump but revealed her sizable breasts
Individual senses of style: While Kim, 35, favoured a skin-tight outfit, Kourtney, 36, looked suitably smart in two-tone separates
Balmain birthday boy: The famous sisters - who are both close with designer Olivier - ensured they had a momento to keep from the special occasion
Smart separates: The mother-of-three chose to conceal her svelte figure and was the vision of class
Pouting party-go-ers: The trio gave the camera their best model poses
A statement gold choker-style neck-piece offered a contrasting touch to Kim's otherwise plainish look.
Meanwhile, Kourtney concealed the entire length of her svelte figure as she picked out a beige ribbed knit and a pair of black wide-legged trousers.
Her narrow waist was accentuated in the form-flattering ensemble which she topped off with a rope-style gold neck decoration.
They get it from their mother: Kris Jenner gave her daughters a run for their money in the style stakes
Genetically-blessed: Kris, 59, Kourtney and Kim looked nothing short of stunning
Although Kim and Kourtney stood out as the most glamorous guests, their mother Kris Jenner gave them a run for their money in the style stakes.
Similarly to her most famous daughter, the 59-year-old too applied an all-black theme to her dress code.
She cut a slim figure in a pair of sheeny leggings, a black top and a gold-buttoned long-length military jacket.
The Kardashian matriarch was joined by her boyfriend Corey Gamble who cemented his status as part of the family as he posed alongside Kris, her eldest daughters and close friend Olivier.
In the family fold: Kris' boyfriend Corey Gamble cemented his status as part of the family as he posed alongside Kris, her eldest daughters and close friend Olivier
Party power couple: Corey, 34, opted for a smart-casual ensemble which comprised khaki jeans, black T-shirt and distressed leather jacket
Keeping his hands on his woman: The music manager placed a protective hand on the Kardashian matriarch's waist
Still got it: Kris, Mary J. Blige and Jada Pinkett Smith showed the younger generation how it's done
Having all the LOLs: Jada, 44, and Kris were pictured laughing their heads off in between being photographed left, right and centre
Family affair: While the Kardashians were out in full force (aside from Khloe who is at Lamar Odom's bedside following his recent collapse), the Smith family also showed their appreciation to the Balmain creative director
All the love: Olivier planted a soft kiss on Jada's cheek in this sweet group shot
Playing the selfie queen at her own game: Jaden Smith, 17, volunteered himself to snap a selfie of him, Kourtney, Kim and his sister Willow, 14
Silly selfie: Willow showed her age by pulling a silly pose while Kim worked her signature steely pout
Selfie game on-fleek: Jaden gave the supposed selfie queen a run for her money
24-hour party person: Jada showed her fun side as she partied up a storm in her statement dress
Supermodel stance: Chanel Iman caught up with the famous sisters and the creative genius as they enjoyed refreshments
While you'd think it was Olivier's time to shine, a provocatively-dressed Kylie stole his spotlight as she turned up in a show-stopping number designed by the birthday boy himself.
The youngest member of the Kardashian-Jenner clan ended up being a magnet of attention when she arrived to his belated birthday party in a revealing white dress that hugged every inch of her hour-glass frame.
She turned up on the arm of her rapper boyfriend Tyga, 25, who made a deliberate effort to match her outfit as he favoured an all-white colour theme, too.
Trust her: While you'd think it was Olivier's time to shine, a provocatively-dressed Kylie, 18, stole his spotlight as she turned up in a show-stopping number designed by the birthday boy himself
Hair she goes: Kylie showed off newly-short sleek raven bob as she struck a pose on the grass in her towering stilettos which were starting to sink into the ground
Alright for some: The crocheted dress perfectly flattered her figure and was a gift from close family friend Olivier
Here they are: Kylie and Tyga looked every inch the power couple as they posed for pictures throughout the night dressed in colour co-ordinating ensembles
Three's not a crowd: The couple caught up with the birthday boy who too put on a suave display in a simply stylish all-black outfit
Match made in showbiz heaven: The youngest Kardashian-Jenner sister and her rapper boyfriend made sure everyone knew about their close relationship as they barely spent any time apart during the evening of celebrations
Do your thing: Tyga was more than happy to take pictures of his lovely lady with Olivier
The finished product: Tyga proved his photo-taking prowess as Kylie uploaded this sweet shot to her Instagram page
City girl: The KUWTK star gazed towards the picturesque view while showing off her narrow waist and generous behind
Ooh er: The 18-year-old took to Snapchat to share a different and more racy perspective of the revealing dress
Coppa feel: Cheeky Tyga reached for Kylie's scantily-clad bottom
Balmain army assemble: Kylie was joined by (from left to right) Cara Delevingne, Abbey Lee Kershaw, Kendall, Olivier, Rosie Huntington-Whiteley, Constance Jablonski and Angela Lindva
Big squeeze: She cuddled up to good friend Willow who came to the party with her mother Jada and brother Jaden
Whoosh: She jumped on a swing with sister Kendall (who was wearing the same shoes but in a different colour) and supermodel Cara, 23
The young lovers posed up a storm and while Kylie was keen to prove their strong bond, Tyga was soon resigned to photo-taking duties.
However, his efforts weren't wasted as the young KUWTK star Instagrammed one shot of herself cuddling up to the Balmain creative director in the skin-tight white net garment, which she captioned: 'I love you @olivier_rousteing thank you for this beautiful dress.'
Kylie and Tyga spent little time apart during the bash but she did make time to mingle with her family and the rest of the guests which included sister Kendall Jenner and Cara Delevingne to name but a few.
The supermodel way: Kendall, 19, proved less is more as she slipped into nude military-style separates
Good choice: The neutral colour complemented the catwalk queen's skin tone while the cinched eyelet top accentuated her lithe figure
Watch your step: She and model mate Cara, 23, looked a little unsteady as they trotted across the grass in their towering stilettos
Swingers: The duo plus Kylie piled onto a make-shift swing
Typical Cara: The quirky clotheshorse played up to the camera while Kylie appeared to be a little dazed
Blondes don't have more fun: Kendall flew the flag for brunettes among the all-blonde model line-up
Meanwhile, Kendall took a more low-key approach to the dress code and slipped her lithe model figure into nude-coloured co-ords.
She unveiled her impeccably slender legs in the bodycon mini skirt which she teamed with a plunging and cinched eyelet top.
The 19-year-old appeared to have swapped style notes with little sister Kylie as she wore the black version of her lace-up stilettos.
Foxy at 46: Jennifer Lopez wowed onlookers at Olivier Rousteing & Beats' star-studded gathering in LA on Friday with her busty display as the designer celebrated his 29th birthday
Cute couple: Posing up a storm with boyfriendCasper Smart, she looked every inch the leading lady in her sexy cut-out top and semi-sheer maxi skirt
The main man: Jennifer couldn't help but pout in a smouldering shot with Olivier
Among other attendees were Jennifer Lopez, who was joined by boyfriend Casper Smart, and Kate Hudson.
Jennifer, 46, hoped to rival Kim in the busty-display department as she picked out a cleavage-enhancing cut-out top and semi-sheer maxi skirt for the occasion.
J.Lo wowed onlookers at the glitzy gathering as she showed some skin which certainly indicated that she'd dressed to impress.
Golden girl: Kate Hudson was on sartorial form when she attended the fashion knees-up in a plunging embellished mini dress
Keeping it classy: Sweeping her hair into a messy side ponytail, she kept make-up to a minimum, allowing her lightly-tanned skin to stand out
Model behaviour: In one picture, Kate cuddled up to Cara and Omar Johnson, who were evidently in the party spirit
Golden girl Kate, 36, was on sartorial form when she attended the fashion knees-up in a plunging embellished mini dress which perfectly complemented her skin-tone and blonde hair colour.
She ripped up the proverbial rule book by parading both her legs and cleavage in the thigh-skimming number.
She heightened her petite frame with a pair of black peep-toe heels and wore her golden locks in a tousled ponytail.
All the glamour: Jada, 44, picked out a statement mini dress which featured gold stripe embellishment and a tassel overlay
Dancing queen: The mother-of-two showcased her sassy moves on the grass-based dancefloor
Individual styles: Despite her young age, Willow proved she's already got a strong sense of style
Starting them young: Willow and Jaden were no doubt the envy of all their friends as they socialised with Olivier
Bandage is best: Alessandra Ambrosio induced a fresh bout of body envy in her form-flattering metallic mini dress
Kisses for the birthday boy: Alessandra, 34, puckered up to her good friend in the plush venue which boasted stunning skyline views
Having the time of their lives: Alessandra and Olivier appeared to be having the best time
Whee! The Victoria's Secret Angel giggled with glee as she tested out the party's main attraction - aside from the birthday boy, of course
Front-row frequenters Alessandra Ambrosio, Rosie Huntington-Whiteley, Chanel Iman, Jourdan Dunn and Jessica Biel also showed their support to the Paris Fashion Week king and he was a man in demand as the models vied for a few minutes of his attention.
While Alessandra, 34, made the most of her statuesque figure in a metallic-coloured bandage mini dress, Rosie, 28, showed some skin in a flippy-hem black dress which featured a torso cut-out.
Olivier's 29th birthday actually fell as he prepared for his star-studded Paris Fashion Week show last month, hence his decision to celebrate belatedly on Friday.
Black is the new black: Rosie Huntington-Whiteley made an effort to fit in with the majority of the attendees as she stepped out in a flirty LBD
Fashionably friendly: Olivier gently pecked the 28-year-old British model's cheek
Model trio: Leggy ladies Chanel Iman (centre) and Jourdan Dunn (right) joined in the celebrations
Striking beauty: The catwalk queens proved exactly why they are the models of the moment in two contrasting mini dresses
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