Natural born poser! Hailey Baldwin shows off her sizzling body in two swimsuits during Kylie Jenner's Caribbean birthday celebration

She's been campaigning for the biggest fashion labels as of late including GUESS and Tommy Hilfiger. 

And Hailey Baldwin's recent social media posts on Thursday proved she's a natural-born poser.

The 19-year-old beauty took two sexy swimwear snaps for her 6.9 million Instagram followers, as she's been vacationing in Turks and Caicos for her best friend Kylie Jenner's 19th birthday bash.

Green on green: Hailey Baldwin donned an olive green, cutout bathing suit in her latest Instagram post on Thursday as she sulkily looked at the camera 

Green on green: Hailey Baldwin donned an olive green, cutout bathing suit in her latest Instagram post on Thursday as she sulkily looked at the camera 

The first shot showed an innocent-looking Hailey with her eyes almost sulking at the camera and pouted lips while standing in front of a plant-filled background.

However, her plunging olive green, one-piece bathing suit had scandal written all over it as it highlighted her slim waist and toned back with cut-outs.

The fashion model boosted her cleavage up with her elbows propped up on her chest as she touched her backwards black cap.

Candid: The 19-year-old IMG model sported a white Calvin Klein bikini as she gave a hearty laugh in her second Instagram post

Candid: The 19-year-old IMG model sported a white Calvin Klein bikini as she gave a hearty laugh in her second Instagram post

The daughter of Stephen Baldwin - who has modeled for Calvin Klein in the past - sported the brand's clothing yet again for her second photo.

Wearing white cotton bikini briefs, Hailey donned a candid pose in a black-and-white photo while laughing uncontrollably, holding back her hair. 

The bikini beauty captioned the moment saying: 'Best.'

Pour me a drink: The blonde beauty shared a picture of herself getting a refill while vacationing in Turks and Caicos for Kylie Jenner's 19th birthday bash

Pour me a drink: The blonde beauty shared a picture of herself getting a refill while vacationing in Turks and Caicos for Kylie Jenner's 19th birthday bash

Stunners: Hailey wore a cut-out mint green bikini and sarongue while Bella Hadid sported a triangle blue denim bikini

Stunners: Hailey wore a cut-out mint green bikini and sarongue while Bella Hadid sported a triangle blue denim bikini

It's no surprise to see the teenage socialite in high spirits as she's been soaking in the sun for Kylie's birthday with her closest friends including Kendall Jenner and Bella Hadid.  

Following Kylie's celebration at The Nice Guy in West Hollywood last week, the gang continued on a boat, dipping their feet in the water and posing in the Caribbean beaches.

Although Hailey models with her famous friends on social media, she's recently revealed to People she doesn't consider herself a supermodel. 

'I'm not on the same level as Gigi and Kendall. We're not in the same place in our careers,' the IMG model said. 

However, the face of Top Shop, Ralph Lauren, and French Connection is still climbing the ranks as her latest gig is the Australian label, The Daily Edited.

Suns out, buns out! The GUESS model sat next to Kendall Jenner and Bella - pictured from left to right -showing off their pert posterior

Suns out, buns out! The GUESS model sat next to Kendall Jenner and Bella - pictured from left to right -showing off their pert posterior

Glamour shot: Hailey revealed to People last month that she doesn't consider herself a supermodel

Glamour shot: Hailey revealed to People last month that she doesn't consider herself a supermodel

Flash the flesh in a cutout swimsuit by House of CB

She's besties with supermodels Kendall Jenner and Gigi Hadid. And Hailey Baldwin has become a rising star in the modeling world herself landing gigs with Tommy Hilfiger and Guess.

For one of her latest photo shoots, Hailey posed away beachside in a cutout swimsuit by House of CB. The British based brand is beloved for their red carpet worthy bodycon dresses and co-ordinate sets, but as it turns out their swimwear is just as sexy as their ready-to-wear pieces.

Hailey's white number has a one-shoulder silhouette with strategic slashes across the chest, abs and hip, exposing just the right amount of flesh without going too overboard.

If you're feeling this style as much as we are, get yours by clicking through to the House of CB website (right).

And for more choices, shop around the edit below for styles from Vince Camuto, LolliCouture and more.

* PRICES MAY NOT BE AS ADVERTISED
Best friends: Hailey told the outlet: 'I'm not on the same level as Gigi and Kendall. We're not in the same place in our careers.' Kendall and Hailey are pictured here last weekend at the sold-out Adele concert

Best friends: Hailey told the outlet: 'I'm not on the same level as Gigi and Kendall. We're not in the same place in our careers.' Kendall and Hailey are pictured here last weekend at the sold-out Adele concert

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