AceShowbiz - Porsha Williams has reunited with her ex Dennis McKinley amid her divorce from Simon Guobadia. "The Real Housewives of Atlanta" star linked up with her baby daddy to celebrate their daughter Pilar Jhena "PJ" McKinley's 5th birthday.

On Friday, March 22, the 42-year-old shared on Instagram a picture of her and her ex-fiance posing with their child. The family looked quite happy as they smiled ear-to-ear to the camera.

In the caption, Porsha exclaimed, "Happy 5th Birthday to my baby (PJ) @pilarjhena !! Mommy loves you sooo much!" She added, "We all are so proud of our pooh bear #ClassroomCelebration."

Dennis himself took to his own Instagram page to pay tribute to his daughter. "Today PJ is 5," he penned alongside an image of the birthday girl. "We outside today fasho! HAPPY BIRTHDAY! 3/22/19."

Porsha's reunion with Dennis came following her split from husband Simon. The TV personality filed for divorce from the Nigerian-born businessman after 15 months of marriage.

Filed in Fulton County Superior Court in Georgia, the divorce paper was said to be private so it's unknown why Porsha made the decisions. However, a source told PEOPLE that the pair called it quits due to an "ongoing matter," though it's "unrelated to recent allegations involving Simon's past."

Making use of Instagram, the Bravolebrity shared a note that read, "Thank you for your prayers & support." Simon, meanwhile, noted in his own statement, "Will Stop Loving My Wife When Divorce Is Final."

Simon himself has seemingly moved on with a woman named Yassmin K Ibrahim. "RHOA" alum NeNe Leakes, who is currently beefing with Porsha, even posted pictures of them enjoying a double date.