They never fail to turn heads on an outing.

And Kendall Jenner, 25, and Hailey Bieber, 24, ensured all eyes would be on them as they donned Sєxy co-ords at Anastasia ‘Stᴀssie’ Karanikolaou’s 24rd birthday party at Goya Studios in Hollywood on Tuesday.

The duo showed exactly why they’re some of the biggest names in the modelling business as they had all eyes on them while heading into the upmarket bash – which was also attended by the likes of Kendall’s sister Kylie and Winnie Harlow

Hailey looked phenomenal at the event as shed donned a cleavage-baring black bralet that she teamed with wide-legged trousers.

The model, who is the daughter of Stephen Baldwin and niece of Alec Baldwin, swept her blonde locks into an elaborate updo.

She completed the look with a glittering silver bucket bag that complemented her hoop earrings and chain necklaces.

Meanwhile Kendall – the daughter of Caitlyn and Kris Jenner – channeled some retro vibes in an eye-catching black and white co-ord of her own.

A tiny bandeau top put her toned abs on display, while matching high waisted trousers in the same eye-catching pattern skimmed her lithe legs.

Kendall boosted her frame with pair of white barely-there heels and toted a small leather handbag.

Later in the evening, the dynamic duo were seen on Kendall’s Instagram page mingling with a group of gal pals who were all dressed up for a glamorous evening.

They looked in great spirits playing music and dancing in front of a mirror, with a few of their friends were seen joining in.

Winnie Harlow was also in attendance at the bash and dropped jaws in a barely-there white and silver gown. The model, 26, showed off her cleavage in the cut away dress which featured a slit across the bodice and along the thigh.

Birthday girl Stᴀssie – who is best friends with Kylie Jenner – also looked phenomenal as she donned a skinтιԍнт silver dress.

The influencer left little to the imagination in the sheer garment, flashing her ɴuᴅᴇ thong and strapless bra beneath the glittering mesh material.

The YouTuber has been open about having a few breast augmentations on her channel as she shared her before and after pH๏τos with her subscribers, and has fessed up to lip fillers in the past.

She cited a disproportionate bust as the initial reason for her first procedure in 2017. ‘My bras and just like everything was difficult,’ she said in her vlog. ‘I [would get] a bra that was too small on one side and fit the other side perfect,’ she shared.

Then in 2018 she made the decision to fix the initial surgery she had after her breasts looked ‘deflated’ after losing weight.

‘When I lost all my weight, [my boobs] just like shrunk…And I just want them to be like cute again. Whatever. Judge me if you wish,’ she said.

The following year she swapped out the implants for smaller ones after she said she had ‘issues’ with the current ones.

Additionally she and Kylie got lasik eye surgery together which was also filmed for her channel as well as Keeping Up With The Kardashians.

Though childhood friends since they were 10, she became the Kylie Cosmetics’ founder’s ride or die after her fallout with Jordyn Woods after the Tristan Thompson cheating scandal.

And they frequently take to social media to show off their ‘twinning outfits’ — which have become sort of their gag on social media.

In addition to a romance with Noah Centineo (To All The Boys I’ve Loved Before) that began in the fall, Stᴀssie has also been linked to suitors including Too H๏τ To Handle’s Harry Jowsey and even Bachelorette alum Tyler Cameron.