Kourtney Kardashian and Travis Barker Are Dating - Entertainment Tonight

The longtime friends have recently sparked a romance. .

A source tells ET, "Kourtney and Travis have had a platonic relationship for years and they’ve been friends and family friends for a very long time, but recently something sparked and their relationship has turned romantic.".

Though Kardashian and Disick ended their nine-year relationship in July 2015, they've worked together to co-parent their kids -- and occasionally keep fans guessing about the status of their relationship with flirty comments on Instagram. 

Scott Disick Leaves a Flirty Comment on Kourtney's Racy Instagram Post

Scott Disick Calls Kourtney Kardashian 'Best Baby Maker in Town'