Kourtney Kardashian just celebrated her 43rd birthday, and it appears that she's winning in life as she got engaged to Travis Barker, launched her family's new reality series with Hulu, and recently got a stamp of approval from her fiance's daughter.

On Monday, the "Blink-182" drummer's 16-year-old daughter took to her Instagram stories to pen a sweet tribute to the reality star for her birthday.

"Happy birthday to the best soon to be step mom I could ask for!" Alabama Barker wrote along with a photo of herself, Kourtney, and Atiana De La Hoya.

A post shared by instagram

She concluded her caption by writing, "You deserve the world." (via People Magazine)

Alabama is Travis Barker and ex Shana Moakler's eldest daughter. The former pair also shares son Landon Barker.

On the other hand, Kardashian shares three children with ex Scott Disick named Mason Dash, Reign Aston, and Penelope Scotland.

The drummer also took to his social media account to greet his fiance by sharing a black and white photo of them embracing each other.

READ NOW: 'Yellowjackets'' Karyn Kasama's Modern Dracula Film 'Mina Harker' Has Been Axed By Blumhouse And Miramax.

"My best friend, my love my everything. Happy Birthday @KourtneyKardash. I love you," he captioned.

The "Keeping Up With The Kardashians" star responded by commenting, "All I could ever dream of and more."

The Poosh founder's birthday greetings come a few weeks after the couple tied the knot during a "practice" wedding ceremony in Las Vegas, Nevada, hours after attending this year's Grammy Awards.

The mom of three later clarified that their wedding was not legal as they failed to obtain a marriage license.

Kourtney Kardashian's True Feelings About Being a Stepmother to Travis Barker's Children

According to a source who spoke to Hollywood Life, as reported by The List, Kardashian is "over the moon" about becoming a stepmom to her fiance's children as she's been close to them over the past years.

The couple started as friends and neighbors in California.

The insider noted that the entrepreneur adores Alabama and Landon, and she can't wait to "officially be their stepmom."

"Kourtney has known his kids and been in their lives for so long that it is such a natural blending because they already have a long history together," the source revealed.

Between Barker's two teenagers, Kardashian reportedly loves spending more time with Alabama as they get along together.

READ ALSO: Apple TV+ Drops Trailer for Bilingual Drama 'Now & Then' From the Creators of 'Velvet,' 'Cable Girls,' and 'Gran Hotel'