Kourtney Kardashian and Justin Bieber ‘casually hooking up’

SAY it isn’t so? Kourtney Kardashian and Justin Bieber have reportedly been hooking up occasionally and text all the time, a source has revealed.

SAY it isn’t so?

Kourtney Kardashian and Justin Bieber have reportedly been “casually hooking up,” a source has revealed to Gossip Cop.

The US gossip website is reporting that the romance isn’t serious, but “occurs occasionally and they’re both having fun”.

On Friday, the 36-year-old reality TV star and the 21-year-old pop star were spotted at popular Los Angeles hotspot The Nice Guy. From there, they headed to a nearby karaoke lounge with a group of friends.

While Kourtney left before Biebs, the website reports the mother-of-three headed over to the Montage Beverly Hills hotel, where the Sorry singer often stays and was photographed leaving the hotel at 4am.

An insider tells US Weekly that Bieber “bragged to friends recently that he has been hooking up with Kourtney Kardashian,” adding, “Oh yeah, that’s definitely happening and has been for some time now. Every time Kourtney and Justin are together they’re extremely flirtatious. They text each other all the time.”

On October 10, the two had dinner at The Nice Guy, taking to Instagram afterwards to share photos of themselves wearing 3D glasses at Universal Studios’ “Halloween Horror Nights”.

She was also present at his American Music Awards after-party on Sunday, November 22, which was also held at The Nice Guy.

This comes as London model Laura Carter claims to have enjoyed a threesome with the pop star. She said an x-rated game of truth or dare ended with her having a threesome with Bieber at a London hotel, and the sex was “amazing”.

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Kourtney Kardashian and Justin Bieber leave The Nice Guy in West Hollywood together

Pictured: Kourtney Kardashian and Justin Bieber Ref: SPL1148647 091015
Picture by: AKM-GSI / Splash News

BEVERLY HILLS, CA - NOVEMBER 22: TV personality Kourtney Kardashian attends Sean "Diddy" Combs Exclusive Birthday Celebration Presented By CIROC Vodka on November 22, 2015 in Beverly Hills, California. (Photo by Jeff Kravitz/FilmMagic)

HollywoodLife is reporting that Scott Disick, who has been trying to win Kourtney back in recent months, has become aware of her hook-ups with Bieber.

“Scott is trying to get better, trying to turn a new leaf and now Kourtney is going out late night and hooking up with another bad boy in Justin,” a source told the website.

“So, Scott feels like it is a slap to the face. He feels that he is doing what she wants and she is now doing things just to make him feel bad.”

Bieber is a longtime friend of the Kardashian-Jenner clan, and has been photographed babysitting Kourtney and Scott’s three kids — Mason, six, Penelope, four, and Reign, 12 months.

His former tour manager and close pal, Corey Gamble, is currently dating Kris Jenner.

Kourtney and Scott split back in July after he was photographed in Monte Carlo cavorting with his ex-girlfriend Chloe Bartoli.

FILE - In this Sunday, Nov. 22, 2015 file photo, Justin Bieber arrives at the American Music Awards at the Microsoft Theater in Los Angeles. With his recent batch of hit singles and semi-grown-up sound - including the electro-pop "Where Are U Now" with DJ-producers Skrillex and Diplo - adult men have begun attending the church of Bieber, and while some have issues admitting it, other proudly say they are Beliebers. “Sorry” and “What Do You Mean,” currently at Nos. 2 and 4 on Billboard’s Hot 100 chart, helped Bieber solidify his comeback after years of a broken image, which included arrests, public smoking and fainting onstage that led to hospitalization. (Photo by Jordan Strauss/Invision/AP, File)

Originally published as Kourtney Kardashian and Justin Bieber ‘casually hooking up’