The 39-year-old reality star split from model Younes Bendjima in August, just days after he was photographed with former Hooters waitress Jordan Ozuna on a beach in Mexico.
And on Friday, September 14, Kourtney was seen outside The Nice Guy restaurant in Los Angeles with the 20-year-old "Grown-ish" star.
The "Keeping Up With the Kardashians" star wore a sparkly white minidress for the dinner date, while her rumoured new love interest wore a black T-shirt and sneakers.
Luka is close with the Kardashian/Jenner brood, and was invited to Kylie Jenner's 21st birthday party in August, as well as attending the family's Labor Day bash earlier this month.
The mother-of-three's relationship with Younes, which began in October 2016, was reportedly the reason behind her strained relationship with her famous younger sisters, Kim Kardashian and Khloe Kardashian.
After paparazzi pictures showed him cosying up to another woman shortly after they had broken up, Younes complained he was being painted as "the bad guy."
In a message posted to his Instagram story at the time, the Givenchy and Balmain model also blamed the media for "failing him."