Kendall Jenner shows off her pert derrière in sheer lace dress as she joins BFF Cara Delevingne at glamorous masquerade ball in London

By now, Kendall Jenner and Cara Delevingne are pretty used to playing dress up.

But the duo used one more excuse on Friday night as they attended Eva Cavalli's masquerade ball at One Maryfair.

The supermodel BFFs slipped into matching lace design masks and velvet blazers to party the night away with A-list revellers, with Kendall showing off her pert derriere in a racy lace dress.

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Best pals: Kendall Jenner and Cara Delevingne seized the chance to get dressed up on Friday night as they attended Eva Cavalli's masquerade ball at One Maryfair

Best pals: Kendall Jenner and Cara Delevingne seized the chance to get dressed up on Friday night as they attended Eva Cavalli's masquerade ball at One Maryfair

Close friends Cara and Kendall, who nickname themselves CaKe, were matching in their outfits' colours - as they rocked an array of midnight blues.

US stunner Kendall wore a lace skirt with a tiny bralet, flashing her high-waisted knickers beneath her daring ensemble.

She capped off the Halloween-inspired image with a velvet jacket and dainty black sandals; towering over her petite model BFF Cara.

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Bottom's up: The fashion muse's pert behind was visible through her navy blue lace midi skirt
Bottom's up: The fashion muse's pert behind was visible through her navy blue lace midi skirt

Bottom's up: The fashion muse's pert behind was visible through her navy blue lace midi skirt

Cute duo: The supermodel BFFs slipped into matching lace design masks and velvet blazers to party the night away with A-list revellers

Cute duo: The supermodel BFFs slipped into matching lace design masks and velvet blazers to party the night away with A-list revellers

Perfect pair: The duo stuck to midnight blues for their matching ensembles

Perfect pair: The duo stuck to midnight blues for their matching ensembles

Cara stayed faithful to her androgynous style with a velvet blazer, just like her counterpart's, and some cigarette cut trousers. 

The girls were joined by Cara's sister Poppy who looked sensational in an extremely revealing red jumpsuit. 

The blonde beauty was at risk of flaunting all in her plunging red jumpsuit - which incidentally coordinated perfectly with Kendall's slick of lipstick. 

The trio tied together their images with matching lace masks, and three of the same structured top layers. 

Masquerading: Kendall was flanked by not only Cara but also her sister, Poppy Delevingne (right) at the wildly glamorous soiree 

Masquerading: Kendall was flanked by not only Cara but also her sister, Poppy Delevingne (right) at the wildly glamorous soiree 

Showing them how it's done: 29-year-old Poppy led the top models out of their hotel and to the ball
Showing them how it's done: 29-year-old Poppy led the top models out of their hotel and to the ball

Showing them how it's done: 29-year-old Poppy led the top models out of their hotel and to the ball

Be a lady in red with a plunge neck jumpsuit like Poppy

Poppy Delevingne stood out in a sea of dark designer duds when she wore this bright red jumpsuit by Emilia Wickstead to a masquerade ball in London.

The scarlet stunner featured a high neck and cutout front that dipped dangerously low. The British socialite teamed her revealing number with a pair of Christian Louboutin pumps and a velvet blazer.

Update your evening wear with a one-piece in a vibrant hue like Poppy and you'll surely steal the spotlight. Click right to get her jumpsuit in blue at Matches Fashion.

But if your heart is set on the crimson color, we've got plenty of lookalike styles in the edit including this cutout back version at JCPenney for only $70.

* PRICES MAY NOT BE AS ADVERTISED
24/7 models: The catwalk queens struck steely poses inside the lavish venue

24/7 models: The catwalk queens struck steely poses inside the lavish venue

Polished to perfection: Kendall made sure not to distract from her outfit by wearing only a light covering of make-up and a bold red lip

Polished to perfection: Kendall made sure not to distract from her outfit by wearing only a light covering of make-up and a bold red lip

Watch your step: Kendall made a confident entrance despite wearing towering stiletto heels
Watch your step: Kendall made a confident entrance despite wearing towering stiletto heels

Watch your step: Kendall made a confident entrance despite wearing towering stiletto heels

Poppy love: The friends sandwiched in big sister Poppy at the event

Poppy love: The friends sandwiched in big sister Poppy at the event

Supermodel army: The trio made a late arrival at the stylish bash in London

Supermodel army: The trio made a late arrival at the stylish bash in London

It had been a big day for Cara, who had confronted the Women in the World summit on depression and mental health.

She had spoken candidly about her own experiences in a fast-paced industry, confessing that she wished someone had stepped in to save her.

After such an eventful day, Cara and Kendall decided to call it a night early and were seen making strides from the One Mayfair after not long inside.

Party girl: Sienna Miller had come straight from the premiere of her new film High-Rise

Party girl: Sienna Miller had come straight from the premiere of her new film High-Rise

Gorgeous girl: She had darted over from the BFI film event to be at the designer's party

Gorgeous girl: She had darted over from the BFI film event to be at the designer's party

Keeping up with the co-stars: Sienna stars alongside James Purefoy in the new flick, and he brought along Jessica Adams (right), his date to the premiere

Keeping up with the co-stars: Sienna stars alongside James Purefoy in the new flick, and he brought along Jessica Adams (right), his date to the premiere

All good friends: US beauty Kendall certainly seemed familiar with the British sisters

All good friends: US beauty Kendall certainly seemed familiar with the British sisters

Birthday girl: The gaggle of girls spent time making the birthday girl Eva feel very special

Birthday girl: The gaggle of girls spent time making the birthday girl Eva feel very special

Edgy: Cara had debuted her new lip piercing earlier in the day

Edgy: Cara had debuted her new lip piercing earlier in the day

While there, they did of course get to put their social skills into practise and were pictured hanging off groups of a-list revellers. 

Chloe Green, whose father Phillip owns Topshop, was among the stylish guests to vamp up for Friday night's Halloween inspired event. 

The 24-year-old shoe designer flaunted her incredible figure in a glamorous, one-shouldered lace gown which left nothing to the imagination due to its entirely sheer lace material.  

Laugh out loud: It was obviously an extremely enjoyable affair

Laugh out loud: It was obviously an extremely enjoyable affair

Gothic glamour: Chloe Green is bound to look stunning wherever she goes

Gothic glamour: Chloe Green is bound to look stunning wherever she goes

Scarlet-lipped; The beauty topped off her look with red lipstick
Masquerading: Emma wore a chic lace mask

High society: Emma Miller, of former Made In Chelsea fame, was looking chic in a black dress

Late night: Clearly pleased with the film, Sienna and Jessica continued the party

Late night: Clearly pleased with the film, Sienna and Jessica continued the party

Chloe, who briefly appeared in E4 reality show Made In Chelsea, nailed the masquerade ball theme in her dress - which allowed onlookers an instant look at her black underwear. 

Despite being a difficult look to pull off, Chloe managed to carry the vampish ensemble off with aplomb as her sensational hourglass curves peeped through the gown. 

She carried a satin quilted clutch, which tied in nicely with the luxurious look while wearing a series of heavy gold bangles

The lady is a vamp! The 24-year-old shoe designer flaunted her incredible figure in a glamorous, one-shouldered lace gown which left nothing to the imagination due to its entirely sheer lace material

The lady is a vamp! The 24-year-old shoe designer flaunted her incredible figure in a glamorous, one-shouldered lace gown which left nothing to the imagination due to its entirely sheer lace material

Sensational: Chloe no doubt turned heads as she joined the party while rubbing shoulders with the stars

Sensational: Chloe no doubt turned heads as she joined the party while rubbing shoulders with the stars

Birthday girl! The party was hosted in honour of Eva Cavalli, the wife of top designer Roberto

Birthday girl! The party was hosted in honour of Eva Cavalli, the wife of top designer Roberto

Guess who! He hid behind a simple white mask
Suited and booted: His ensemble was certainly well-prepared

Party on: Henry Conway was seen masking up for the designer's bash

Despite the wow-factor of her outfit, Chloe's make-up was just as much of a talking point. 

She opted to forego the classic mask look - instead having dramatic lace appliqués transferred directly onto the skin above her eyes, which were already given a bold smokey look. 

She topped off the look with a slick of nude lip gloss while her nails were given a vampish manicure to enhance the over all effect. 

Dapper: Also joining the party was veteran actor Antonio Banderas

Dapper: Also joining the party was veteran actor Antonio Banderas

Look of love: Antonio Banderas and gorgeous girlfriend Nicole Kimpel went gooey-eyed as they stepped out for Eva Cavalli's birthday party

Look of love: Antonio Banderas and gorgeous girlfriend Nicole Kimpel went gooey-eyed as they stepped out for Eva Cavalli's birthday party

Looks familiar: Antonio famously portrayed Zorro, the hero of The Mask Of Zorro

Looks familiar: Antonio famously portrayed Zorro, the hero of The Mask Of Zorro

The party was hosted in honour of Eva Cavalli, the wife of top designer Roberto. 

The birthday girl looked sensational in an edgy trouser suit while she wore a gigantic feathered head dress with a simple lace mask shielding her eyes. 

Also joining the party was veteran actor Antonio Banderas, Swedish model Victoria Silvstedt and Lade Victoria Hervey.  

Famous friends: The couple hung out with (left) Robin Cavalli and Victoria Silvstedt on the night

Famous friends: The couple hung out with (left) Robin Cavalli and Victoria Silvstedt on the night

Glamorous: Sasha Volkova wore a floor-sweeping gold dress on the night

Glamorous: Sasha Volkova wore a floor-sweeping gold dress on the night

Masquerade: Sarah Harris attended the event with a mysterious masked companion

Masquerade: Sarah Harris attended the event with a mysterious masked companion

Now that's a disguise: Daniel Lismore went all out with her fancy dress costume

Now that's a disguise: Daniel Lismore went all out with her fancy dress costume

Big day: Earlier that afternoon, Cara had confronted the Women in the World summit about depression

Big day: Earlier that afternoon, Cara had confronted the Women in the World summit about depression

Follow the leader: London native Cara led Kendall out of the venue after exchanging pleasantries with the star-studded party

Follow the leader: London native Cara led Kendall out of the venue after exchanging pleasantries with the star-studded party

Early night: Cara and Kendall were seen calling it a night after a fleeting visit to the bash

Early night: Cara and Kendall were seen calling it a night after a fleeting visit to the bash

Just the two of us: They left without Cara's older sister Poppy nevertheless
Just the two of us: They left without Cara's older sister Poppy nevertheless

 Just the two of us: They left without Cara's older sister Poppy nevertheless

Keeping their heads down: The best-friend pair - who nickname themselves CaKe - were keen to leave unnoticed

Keeping their heads down: The best-friend pair - who nickname themselves CaKe - were keen to leave unnoticed

An elegant exit: Both Kendall's and Cara's make-up and hair was still firmly in place after partying a storm

An elegant exit: Both Kendall's and Cara's make-up and hair was still firmly in place after partying a storm

Supermodel struts: The duo looked completely stable in their sky-high heels
Supermodel struts: The duo looked completely stable in their sky-high heels

Supermodel struts: The duo looked completely stable in their sky-high heels

Move, get out of the way: Cara appeared to be acting as somewhat of an escort to Kendall

Move, get out of the way: Cara appeared to be acting as somewhat of an escort to Kendall

Flying solo: Kendall has not been accompanied by any members of her family on her latest London trip
Flying solo: Kendall has not been accompanied by any members of her family on her latest London trip

Flying solo: Kendall has not been accompanied by any members of her family on her latest London trip

Party-hoppers: Despite calling it an early night, the party didn't stop there as they headed to their next engagement

Party-hoppers: Despite calling it an early night, the party didn't stop there as they headed to their next engagement

Meet the parents: Cara took Kendall to meet her mother and father following the swanky bash

Meet the parents: Cara took Kendall to meet her mother and father following the swanky bash

Welcome to my world: Cara took Kendall to her Chelsea hometown where she grew up before hitting the big time

Welcome to my world: Cara took Kendall to her Chelsea hometown where she grew up before hitting the big time

Good sport: Despite wanting to go unnoticed, Cara was polite to the paparazzi

Good sport: Despite wanting to go unnoticed, Cara was polite to the paparazzi

If it's not on Instagram, it didn't happen: Cara was seen playing on her phone in the back of the taxi - presumably uploading the 'chronicles of CaKe' to her Instagram page

If it's not on Instagram, it didn't happen: Cara was seen playing on her phone in the back of the taxi - presumably uploading the 'chronicles of CaKe' to her Instagram page

Making time for her loved ones: Cara proved she's not let superstardom go to her head by taking Kendall to dinner with her folks

Making time for her loved ones: Cara proved she's not let superstardom go to her head by taking Kendall to dinner with her folks


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