Kris Jenner Celebrates 'Firstborn Babydoll' Kourtney Kardashian Barker's 45th Birthday: 'Love You Beyond Measure'

The Poosh founder received lots of love from her loved ones, including mom Kris Jenner and sister Khloé Kardashian, as she celebrated another year around the sun

Kourtney Kardashian Barker is officially 45, and she has no shortage of love in her life!

To honor the oldest sister of the Kardashian-Jenners, her loved ones have showered her with love across social media. But it was her mom Kris Jenner who kicked off the tributes, posting a photo carousel featuring pics of Kourtney from childhood onward.

"Happy birthday to my firstborn babydoll @kourtneykardash!!!!!! What in the world is happening, time is twirling so fast and I can’t believe you are 45!!!" Kris, 68, captioned the Instagram post. "It seems like just the other day you were wearing your 5 year old party hat going to Buckley to be the line leader and I was bringing cupcakes for the class to celebrate."

"Well you have grown into the most beautiful and amazing daughter, wife, mommy, sister, auntie and best friend a girl can have," she continued. "You are a kick ass business boss and I am so proud of you every day! Thank you for making me a grandma for the first time and for every single moment and memory we share. I love you beyond measure ❤️🙏🏼."

In response to the thoughtful message, Kourtney — who showed off a gorgeous flower bouquet gift on her Instagram Stories — wrote: "I love you mommy! ❤ time is flying so fastttttt! So grateful for every memory with you."

The reality star's sister Khloé Kardashian also commented on Kris' sweet tribute.

"Happy birthday my dapper little cutie," the Good American mogul, 39, wrote. "We love you my Janey balls! I love love love you my little slice of apple pie."

Related: Kourtney Kardashian Reveals Birthday Cake Poking Fun at Sister Kim Calling Her the 'Least Exciting to Look at'

The famous family have been celebrating the Poosh founder’s 45th all week, with Kourtney posting a series of photos on Instagram Sunday showing off a selection of cakes poking fun at the sisters.

Kourtney captioned the carousel post “mood 🎈,” with the first photo showing her laughing on a yacht alongside a large cake.

Written on top of the dessert was a gold and orange glittery cake topper that read ‘Happy Birthday To The Most Exciting To Look At’ — referring to Kim previously calling her “the least exciting to look at” during an episode of their former reality show, Keeping Up with the Kardashians.

Related: Kourtney Kardashian Reveals She Drinks Her Own Breast Milk: 'Just Pounded a Glass'

The other cakes read “Aries Baby” and “Just Living Life,” a saying Kourtney often uses on the family’s Hulu show. A few other personalized classic “Happy Birthday” cakes were featured in the post too.

The photo dump also included images of Kourtney as a kid celebrating her birthdays during her childhood. One sweet snap showed mom Kris smiling at the camera as toddler Kourtney stood beside her with a party hat on.

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The past year has held a lot of excitement for Kourtney. She welcomed her fourth child and first with with husband Travis Barker, a boy named Rocky, in November 2023 after sharing their difficult pregnancy journey on The Kardashians.

Related: Khloé Kardashian Says She and Sister Kourtney Are 'Twin Souls' in Gushing 44th Birthday Tribute

In addition to their new baby, the couple is also parents to six children between them.

Kourtney shares Reign Aston, 8, and Mason Dash, 13, plus daughter Penelope Scotland, 11, with ex Scott Disick. Barker is father to son Landon, 20, daughter Alabama, 17, and stepdaughter Atiana De La Hoya, 24, with his ex-wife Shanna Moakler.

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