It is typically a night dedicated to chills, but temperatures rose considerably as celebrated her 22nd birthday with a Halloween themed party on Tuesday evening.
The model accentuated her slender physique by sporting skimpy costumes akin to those worn by animated crime-fighter ʙuттercup from The Powerpuff Girls.
Showing off her abs in a satin green and black bra, Kendall – who officially turns 22 on November 3 – caught the eye as she climbed from the rear of their chauffeur driven car and made her way into event venue the Delilah club.
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A thigh-skimming black denim skirt and over-the-knee boots drew further attention to her toned legs, while raunchy fishnet stockings rounded things off.
Giving her costume an extra hint of authenticity, the model covered her brunette locks with a heavily tinted wig complete with subtle green highlights.
Following close behind, model friend Hailey Baldwin, 20, embraced a similar theme by arriving as Powerpuff Girl Bubbles.
Opting for a blue and silver crop top over matching skirt, the blonde ensured she claimed her own share of the spotlight as she made her way inside.
Long black socks added a raunchy flourish to her look, while a blue fleece coat and stylish heeled ankle boots rounded things off.
Styling her hair in a conventional bun, Hailey ensured her delicately proportioned features – accentuated with deft touches of make-up – were immediately noticeable.
The pair had good company in the form of Tinashe, who transformed into a racy devil for the event on Tuesday evening.
The singer, 24, looked devilishly Sєxy when she styled her scarlet frilled pants over racy fishnet тιԍнтs which best showcased her model-honed legs.
The songstress drew further attention to her slender limbs when she paraded through the H๏τspot in thigh-high pointed boots in the same hue of red.
Tinashe also put her ample cleavage on display in her form-fitting corset bra, accentuated by her three-tier silver pendant.
Proving accessories can make a costume, the model looked every inch the part with her devil horns and brightly coloured shoulder-length wig.
The American beauty plumped out her pout with striking scarlet lipstick and she wore heavy eyeliner as well as touches of pink eye-shadow to soften her look.
Keeping her essentials together, the record producer toted a cylinder-shaped handbag which proved a perfect match for her sizzling attire.
Elsewhere Ariel Winter, 19 – who was joined by her beau – put on a seriously Sєxy display as she flashed her stomach and toned legs in an incredibly skimpy ensemble.
The actress, who was joined by boyfriend Levi Meaden, looked ready for a night out as she bared her flat stomach in the tiny black crop top.
She teamed it with a pair of daring denim cut-offs, which showed off her bronzed pins.
Meanwhile Kendall’s older half-sister Kourtney Kardashian dressed for the occasion as Depression-era bank robber Bonnie Parker, and her current beau Younes Bendjima.
Drawing attention to her own slender frame, the 38-year old opted for a fitted skirt with thigh-split over a cropped, vintage themed sweater.
However she appeared to suffer a wardrobe malfunction by flashing her underwear as she emerged from her vehicle.
Kourtney completed the look with a shoulder-length blonde wig, a ɴuᴅᴇ coloured beret, as well as a pair of stylish pointed heels.
She strutted along, making sure she was close to Younes, who also looked undeniably suave in a pinstripe suit and stylish fedora hat.
The star – who is already a mother to Mason, seven, Penelope, five, and Reign, two, with ex-partner Disick, 34 – recently fuelled pregnancy rumours.
However she took to Twitter to clarify the situation after Grazia released an interview on Tuesday.
Referring to a ‘crazy rumor’, she wrote: ‘I see online that I said I was pregnant in an interview, but that was completely taken out of context.
‘The interviewer asked me “What’s a crazy rumor that you’ve heard about yourself?” and my answer was…”I’ve heard that I am pregnant”‘.
Kourtney’s sister Kim, 37 – who was absent on the night – is expecting her third child with rapper husband Kanye West, 40, via surrogate in January.
Khloe Kardashian, 33, and Kylie Jenner, 20, are also both reportedly pregnant with their first children, but both of the first-time mums are yet to confirm the news.
While Kendall celebrated her birthday in West Hollywood, Kim transformed into the late singer Selena Quintanilla to attend the party of her close pals John Legend and Chrissy Teigen.
The reality star, 37, slipped into a costume reminiscent of Selena’s now iconic purple jumpsuit and was still seen clutching onto her microphone while exiting the bash
The beauty has been following a strict training regime in a bid to hone her svelte physique and wasn’t shy to display the results of her hard work.