Disick celebrated the mother of his three children with a throwback photo of the two kissing in the ocean. "Happy birthday @kourtneykardash everyone who knows you loves you so much!" he wrote alongside the sexy throwback snap.
Kardashian and Disick split last summer after nearly a decade of dating -- and after he was spotted out with another woman -- but have been sparking rumors of a reconciliation lately.
"We're not getting back together right now, but I don't know like, what the future holds in life," Kardashian played coy during a recent episode of the Today show. "We're just doing our best to be the best parents...We're friends at this point."