The Keeping Up with the Kardashians star took to Instagram on Friday to share a flashback photo of herself and boyfriend Tristan Thompson — who have been dating since September 2016 — from her birthday in June, when the reality star turned 33.
In the sweet image , Kardashian gives a sultry smize to the camera as she cuddles up to Thompson, who gently rests his chin on her head.
“FBF to one of my favorite days with all of my favorite people… my surprise party 🎉” Kardashian captioned the snapshot.
“Man, everyone was sooooo good at keeping that secret! Hrush, Jen and Tristan were so calm, cool and collected during glam 👀” she said, giving a shout-out to her makeup artist, Hrush Achemyan, hairstylist, Jen Atkin, and Thomspon, 26. “I need to watch you sneaks lol That was such an epic night!”
To celebrate the milestone, Kardashian went super glam. She stepped out for her big night wearing a semi-sheer pink mini dress with spaghetti straps and an all-over swirling silver sequin pattern that she accessorized with an Atelier Swarovski Marina glittery gold clutch and Tamara Mellon Frontline sandals.
Cavaliers player Thompson looked equally dapper in a leopard-print button down that he paired with black skinny jeans, black velvet loafers, a pair of glasses, and two thin diamond chains.
The couple enjoyed an early dinner at TAO Los Angeles in the restaurant’s private skybox prior to hitting The Blind Dragon in Hollywood to meet up with the KarJenner crew for Kardashian’s surprise birthday party.
“I’ve never had a surprise party in my life! I was blown away! Im so lucky and blessed! Thank you so much baby!!! You treat me like a queen!” Kardashian tweeted the morning after her party. “My family and friends are the best!!! I feel so lucky!!”
In September, PEOPLE confirmed that Kardashian and Thompson are expecting their first child together. Multiple sources confirmed late last month that they will welcome a baby boy together early next year.
“This is something Khloé has wanted for years and years and yet it’s more than that: She didn’t want it unless she was in the right relationship for it,” a source told PEOPLE, adding, “This is such a wonderful moment for her: not only is she going to be a mother, she is going to be raising a child with a man she truly loves. Everyone is over the moon for them both.”