The 39-year-old was spotted with actor and model Luka Sabbat, 20, outside hotspot The Nice Guy in Los Angeles.
And the mom-of-three dressed to impress for her date. She wore a sparkly white mini-dress that hugged her body.
Sabbat wore a low-key black t-shirt with matching pants and sneakers as he had fun with his new lady.
Kardashian recently split-up with Younes Bendjima and it looks like she has moved-on with her life.
Sabbat is close with the famous siblings and was at Kylie Jenner's recent 21st birthday party.
He also was also at the Kardashian's annual Labor Day party earlier this month that also attended by Kourtney.
The father of her three children, Scott Disick, is also dating a much younger girlfriend.
The 35-year-old has been with Sofia Richie, 20, for over a year now and it seems like Kourtney likes a younger partner too!
We pay for juicy info! Do you have a story for RadarOnline.com? Email us at firstname.lastname@example.org, or call us at (866) ON-RADAR (667-2327) any time, day or night.