Kourtney Kardashian, 41, and her TikTok star BFF Addison Rae, 19, relax in bikinis

Keeping Up with the Kardashians star Kourtney Kardashian appears to have found a true best friend forever with her teenage gal pal Addison Rae.

The pair have been enjoying a fun vacation in Palm Springs over the weekend, and Kourtney, 41, can’t get enough of sharing snaps with herself and the 19-year-old TikTok star. 

On Monday, Kourtney posted yet another bikini snap of the pair together, as they posed poolside while relaxing on their trip to the desert. 

BFFs: Kourtney Kardashian, 41, rocks bikini poolside with gal pal Addison Rae, 19, in Palm Springs, in a post uploaded on Monday

At 41, the Poosh founder is 22 years older than the top-earning TikTok creator, but the pair seem to hit it off and enjoy many of the same things.

Kardashian – who boasts 146.5M social media followers – captioned an Instagram snap of herself photographing Addison on Sunday: ‘Picture me I picture you.’ 

Kourtney flaunted her cleavage in a teal sparkly two-piece, which she paired with square sunglasses and wide-brimmed sunhat.

The Calabasas socialite seems to love any excuse to leave lockdown at her $8.5M six-bedroom mansion inside the gated community, Estates at the Oaks.

Close: Addison is seen resting her head on her pal Kourtney, as the pair have become increasingly inseparable lately

Close: Addison is seen resting her head on her pal Kourtney, as the pair have become increasingly inseparable lately 

Straddle: KUWTK star Kourtney Kardashian (top) continued to bond with her teenage gal pal Addison Rae (bottom) while they both rocked bikinis poolside in Palm Springs on Sunday

Straddle: KUWTK star Kourtney Kardashian (top) continued to bond with her teenage gal pal Addison Rae (bottom) while they both rocked bikinis poolside in Palm Springs on Sunday

'Picture me I picture you': At 41, the Poosh founder is 22 years older than the top-earning TikTok creator, but the pair seem to hit it off and enjoy many of the same things

‘Picture me I picture you’: At 41, the Poosh founder is 22 years older than the top-earning TikTok creator, but the pair seem to hit it off and enjoy many of the same things

Kardashian and Rae (born Easterling) seemed to have a ball snacking on watermelon slices and chatting with Public.com staffer Phil Riportella in the large swimming pool.

Kourtney personally shook up cocktails in the kitchen as she chatted with her underage influencer friend.   

Later, Phil’s fiancé Simon Huck filmed a TikTok video of Addison as she crawled towards him in the wading part of the pool.

Long lashes: Kardashian flaunted her surgically-enhanced cleavage in a teal sparkly two-piece, which she paired with square sunglasses and wide-brimmed sunhat

Long lashes: Kardashian flaunted her surgically-enhanced cleavage in a teal sparkly two-piece, which she paired with square sunglasses and wide-brimmed sunhat

Nanny on duty: The Calabasas socialite seems to love any excuse to leave lockdown at her $8.5M six-bedroom mansion inside the gated community, Estates at the Oaks

Nanny on duty: The Calabasas socialite seems to love any excuse to leave lockdown at her $8.5M six-bedroom mansion inside the gated community, Estates at the Oaks

Nanny on duty: The Calabasas socialite seems to love any excuse to leave lockdown at her $8.5M six-bedroom mansion inside the gated community, Estates at the Oaks

'Watermelon sugar': Kardashian and Rae seemed to have a ball snacking on watermelon slices and chatting with Public.com staffer Phil Riportella (M) in the large swimming pool

‘Watermelon sugar’: Kardashian and Rae seemed to have a ball snacking on watermelon slices and chatting with Public.com staffer Phil Riportella (M) in the large swimming pool

The Canadian 36-year-old is the owner of PR firm Command Entertainment Group, which likely counts Rae as their client.

Simon famously used to co-star with Jonathan ‘Foodgod’ Cheban in E! series The Spin Crowd, which was produced by Kourtney’s younger sister Kim Kardashian West.

The LSU drop-out did her best impression of a SI Swimsuit cover girl or Victoria’s Secret Angel as she writhed in the wading pool in a green two-piece while lip-syncing ABBA’s 1980 song, Lay All Your Love on Me.    

On the prowl! Later, Phil's fiancé Simon Huck (R) filmed a TikTok video of Addison as she crawled towards him in the wading part of the pool

On the prowl! Later, Phil’s fiancé Simon Huck (R) filmed a TikTok video of Addison as she crawled towards him in the wading part of the pool

Not holding back: The Canadian 36-year-old is the owner of PR firm Command Entertainment Group, which likely counts Rae as their client

Not holding back: The Canadian 36-year-old is the owner of PR firm Command Entertainment Group, which likely counts Rae as their client

Not holding back: The Canadian 36-year-old is the owner of PR firm Command Entertainment Group, which likely counts Rae as their client

Throwback! Simon famously used to co-star with Jonathan 'Foodgod' Cheban in E! series The Spin Crowd, which was produced by Kourtney's younger sister Kim Kardashian West

Throwback! Simon famously used to co-star with Jonathan ‘Foodgod’ Cheban in E! series The Spin Crowd, which was produced by Kourtney’s younger sister Kim Kardashian West

The LSU drop-out did her best impression of a SI Swimsuit cover girl or Victoria's Secret Angel as she writhed in the wading pool in a green two-piece

She was lip-syncing ABBA's 1980 song, Lay All Your Love on Me

Not-so-typical teen: The LSU drop-out did her best impression of a SI Swimsuit cover girl or Victoria’s Secret Angel as she writhed in the wading pool in a green two-piece while lip-syncing ABBA’s 1980 song, Lay All Your Love on Me

App might get banned: The American Eagle global spokesperson brought in an estimated $5M last year, thanks to her 57.1M followers on the Chinese-owned social media platform

App might get banned: The American Eagle global spokesperson brought in an estimated $5M last year, thanks to her 57.1M followers on the Chinese-owned social media platform

The American Eagle global spokesperson brought in an estimated $5M last year, thanks to her 57.1M followers on the Chinese-owned social media platform – according to Forbes.

‘I’ve had such an amazing time spending time with Kourtney and meeting the family,’ Addison gushed to E! News earlier this month.

‘They’re all just such loving people that genuinely care about each other. That just continuously inspires me. They all have such an amazing bond that I always valued in my family. 

‘So it really just makes me love them even more as people, because not everyone gets to see every second. It just really shows you how genuine they are. It’s not all just for the show, it’s how they really are.’ 

'Exchanging stories': Kardashian sarcastically called Rae 'my husband's girlfriend' in a July 31 post joking that she's young enough to be pursued by her 37-year-old babydaddy Scott Disick

‘Exchanging stories’: Kardashian sarcastically called Rae ‘my husband’s girlfriend’ in a July 31 post joking that she’s young enough to be pursued by her 37-year-old babydaddy Scott Disick

Kardashian sarcastically called Rae ‘my husband’s girlfriend’ in a July 31 post joking that she’s young enough to be pursued by her 37-year-old babydaddy Scott Disick.

The half-Armenian beauty and the Talentless CEO still get on well and amicably co-parent their three children – son Mason, 10; daughter Penelope, 8; and son Reign, 5.

Kourtney famously ended her on/off nine-year romance with Scott after he was caught canoodling with stylist Chloé Bartoli in Monte Carlo back in 2015.

Fans can catch more from the University of Arizona grad in the 19th season of Keeping Up with the Kardashians, which premieres September 17 on E!