Kourtney Kardashian Wishes 'Baby Daddy' Scott Disick Happy Birthday With Bikini-Clad Throwback Pic

This video is unavailable because we were unable to load a message from our sponsors.

If you are using ad-blocking software, please disable it and reload the page.

The birthday wishes keep coming in for Scott Disick, who turned 33 on Thursday.

After a spate of celebratory messages from the reality star's friends and family, Disick's ex, Kourtney Kardashian, finally shared an adorable TBT pic in honor of his special day, showing her straddling a clean-shaven Disick while rocking a zebra-print bikini.

WATCH: 6 Times Kourtney Kardashian And Her Sick Bod Totally Killed It Since Splitting With Scott

"Happy birthday baby daddy!" Kardashian captioned the cute snapshot from when the couple appeared to be much younger.

Disick and Kardashian, who called it quits in July 2015 after dating for 10 years, share three kids -- Mason, 6, Penelope, 3, and Reign, 17 months.

RELATED: Scott Disick Receives Love From 'Proud Mama' Kris Jenner on 33rd Birthday

Since their split, and his subsequent stay in rehab last year, Disick has remained close with his ex's family, many of whom shared Instagram pics celebrating his special day as well. Rob Kardashian called Scott his "brother for life" -- and Kardashian family matriarch Kris Jenner gushed, "I am so blessed to be able to call you my son. I love you and hope you have the most amazing day!"

In April, Disick wished his ex a happy 37th birthday with a steamy make-out pic he posted to Instagram. Check out the video below to see the PDA-filled throwback snapshot.

Related Gallery