Kendall Jenner
Kendall Jenner is upset over Justin Bieber and Kourtney Kardashian's romance reportsGetty

Kendall Jenner is apparently unhappy over Justin Bieber and Kourtney Kardashian's dating reports. The mother-of-three and the Baby hitmaker were reportedly seen getting cozy at The Nice Guy in West Hollywood on 11 December.

A source told People: "He and Kourtney were nearly inseparable – smoking on the patio together and were super touchy feely. They went to Blind Dragon afterwards...Kourtney left around 12:45 a.m. and Justin left around 1:30 a.m."

The Victoria's Secret model is shocked over the romance reports. A source told Hollywood Life: "Kendall thinks the whole thing between Kourtney and Justin is weird. It's just creepy. First off, Justin is Kendall's good friend. He used to date her best friend Hailey [Baldwin]. Plus, he's just too young for Kourtney. He's a complete player and for the life of her, Kendall doesn't understand what Kourtney and Justin have in common."

"They both downplay their flirting with each other when they're around Kendall, but she's not an idiot. She knows something's brewing between them and it's just bizarre to her," the insider added.

Scott Disick Kourtney Kardashian
Kourtney Kardashian had split with her longtime boyfriend Scott Disick Getty

It was previously revealed that Kardashian ended her relationship with Scott Disick over the 4 of July holiday weekend. The split came after he was pictured getting close to his rumoured former girlfriend Chloe Bartoli.