Are Kourtney Kardashian & Justin Bieber Hooking Up… Again?

Kourtney Kardashian and Justin Bieber spent Saturday night together at Hollywood hot spot Peppermint Club, leaving many to wonder if these two are hooking up yet again.

The two hit the town after Kourtney partied it up at Jessica Alba's husband Cash Warren's birthday celebration. Kardashian attended the pajama jam in a black silky pajama set over a black lacy bra.

While at the club, Justin opted for a more causal look, going with a grey sweatshirt and ball cap.

The late-night rendezvous continued at Delilah Restaurant until 2 a.m. A Kardashian source told People the 37-year-old and 22-year-old “hung out together with friends, but didn't spend the night together. Kourtney is still serious about making things work with Scott. She went to the birthday party for Cash first and was ready to party more after. They chatted, had fun but that was it. Kourtney is finished hooking up with Justin.”

Reports of their romance go back to July 2015 at The Nice Guy in West Hollywood, just after Kourtney and Scott Disick ended their 9-year relationship, but Justin and Kourtney were never very serious, and sources say, "It's been a deep flirtation for months."

In 2015, Justin spoke about the “KUWTK” star on “The Bert Show,” joking, "I'm being used, man. What can I say?… No, no, but for real, she's great. I've known [the family] for years.”