The twosome later jetted off to Puerto Vallarta, Mexico, on October 2 where they were seen packing on the PDA and kissing as they rode jet skis.
“Kourtney thinks this fling with Sofia is a little weird, but nothing shocks her anymore,” a source told Us after news of Disick and Richie’s hookup became public.
READ MORE Kourtney Kardashian and Scott Disick are fully back on track as co-parents after some serious conversations and a little family vacation.
But hours before their scheduled flight, Sofia Richie, 19, and Scott Disick, 34, were spotting grabbing some ice cream.
They enjoyed a romantic trip to Miami this past week.
Sources close to the situation tell us Kourtney's laid…
When asked if he was happy for the new couple, the multi-Grammy winner quipped, “I’m scared to death, are you kidding me? reality star in early September, as Us exclusively reported, when a source told at the time, “Things became official over the past week while they were in New York City together.” He then made their relationship Instagram official on September 23 by sharing an intimate photo of them snuggling up together in Miami.