Kourtney Kardashian is celebrating Addison Rae’s birthday.

Kourtney, 44, gave a particular shout-out to the TikTok star (whose full title is Addison Rae Easterling) as she turned 23 on Friday. Along with sharing two images of the pair posing collectively on her Instagram Story, the Poosh founder posted a hilarious flashback TikTok the 2 made collectively through which they recreated a scene from a 2017 episode of Holding Up with the Kardashians.

Within the clip, Rae, taking part in Kardashian matriarch Kris Jenner, is displaying daughter Khloé Kardashian some bathing fits she not too long ago acquired, together with a low-cut one-piece design given to her by Kourtney.

“Nicely, I can not put on it ‘trigger do you see the again? It is a thong. What do you assume I’m?” Kourtney says, taking part in youthful sister Khloé.

“You do not put on a thong?” Rae as Jenner asks with a shocked voice.

“I imply, not in public,” Kourtney replies.

“Oh, wow. You might be conservative,” Rae mimics Jenner, making an exaggerated shocked expression.

Kourtney additionally re-shared an Instagram submit from Rae, thanking her for the birthday reward she despatched. It seems the truth star despatched Rae a candy shock: a present basket full of colourful confections that includes her first preliminary “A” constructed from heart-shaped gummy candies.

“SCREAMING AND CRYING,” Rae wrote over a photograph of the reward. “I like you a lot @kourtneykardash. You already know me so effectively.”

The pair first related in early 2020, when Kourtney requested Rae to shock her son Mason as a result of he is a giant fan of her TikToks. The ladies hit it off instantly, Rae later revealed whereas showing on the Tom Ward Present in July 2020.

“I type of simply caught round, and we acquired actually shut,” she mentioned on the time. “We began understanding collectively. We did a video on her YouTube of us doing a butt exercise and stuff, in order that was enjoyable.”

In an interview with PEOPLE that very same month, Rae credited Kourtney with encouraging her to tune out the hate she receives on social media and embrace a extra optimistic mindset.

“Certainly one of my pals, Kourtney Kardashian, has informed me to understand and take a look at the larger image and to not get so caught up within the micro,” Rae mentioned. “Simply take pleasure in what you will have and don’t let issues get to you an excessive amount of as a result of there’s a lot else to be comfortable about.”

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Their friendship continued to blossom, and in 2021, Kourtney made a shock cameo in Rae’s film He is All That. Forward of the film’s premiere, the content material creator informed Entry Hollywood that Kourtney had turn out to be an “superb buddy” and “mentor” to her.

She famous that she and Kourtney are “actually comparable” of their personalities. “I feel each of us are very sincere individuals, and we like a whole lot of the identical issues,” Rae defined. “It began off with each of us simply loving to exercise. We had been doing that collectively so much.”

“She’s only a very actual individual and sincere,” she added. “She’s been so useful to me in each approach. She’s such a superb individual to lean on.”

Kourtney shared her personal ideas about their friendship — together with the duo’s 21-year age distinction — throughout an episode of her household’s actuality collection. “I really feel like I’ve a younger coronary heart and an previous soul,” she mentioned.

“Folks appear to concentrate on the age hole between Addison and me however I do not assume each individual wants to know my relationships with every of my pals,” she continued.

Again in July, the 2 pals proved their bond continues to be simply as sturdy as ever as they loved a pool day collectively. Kourtney shared a collection of images on Instagram of the pair enjoyable poolside in coordinating hot-pink bikinis. Within the pictures, Rae lovingly rested her hand on Kourtney’s stomach — she and husband Travis Barker are at the moment anticipating a child collectively.