Kourtney Kardashian and Justin Bieber 'hooking up and 'text each other all the time'

Kourtney Kardashian and Justin Bieber 'hooking up and 'text each other all the time'

Caitlin McBride Twitter

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Kourtney Kardashian and Justin Bieber

Before 2015 wraps, Hollywood's most unlikely new couple has emerged.

Reality star Kourtney Kardashian (36) and singer Justin Bieber (21) are reportedly "hooking up" and the pair are said to be "extremely flirtatious".

Bieber is close friends with Kendall Jenner (20) and is regularly spotted in the Kardashians' company.

“Justin bragged to friends recently that he has been hooking up with Kourtney Kardashian," source told Us Weekly.

Model Kendall Jenner (L) and TV personality Kourtney Kardashian attend The Comedy Central Roast of Justin Bieber at Sony Pictures Studios on March 14, 2015 in Los Angeles, California. The Comedy Central Roast of Justin Bieber will air on March 30, 2015 at 10:00 p.m. ET/PT. (Photo by Kevin Mazur/WireImage)

Another insider confirmed the budding relationship to the magazine, saying: “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.”

The mother-of-three split with partner of nine years Scott Disick in July after pictures emerged of him cuddling in Miami with ex-girlfriend Chloe Bartoli and the fallout of their relationship has formed one of the main storylines in season 11 of Keeping Up With The Kardashians.

And the What Do You Mean singer has clearly been enjoying the rumours and posted a picture on his Instagram account, purporting to be in a compromising position, with the caption "Lord knows", with many suggesting it's a dig at Disick who refers to himself as a Lord.

The duo are said to have enjoyed a number of dates in recent weeks, including a dinner in October and partying together after the American Music Awards.

(L-R) Justin Bieber, Kendall Jenner and Kris Jenner attend the CR Fashion Book Issue No.5 Launch Party hosted by Carine Roitfeld and Stephen Gan at The Peninsula Paris on September 30, 2014 in Paris, France. (Photo by Kristy Sparow/WireImage)