Kourtney Kardashian embarrassed by Justin Bieber hook-up!

Jennifer Fletcher

Kourtney Kardashian hadn’t ruled out a reconciliation with her baby daddy Scott Disick before her hook-up with Justin Bieber came to light – with whispers swirling that if she ever got back with her baby daddy they’d make their relationship official and get hitched – so no wonder we hear the reality star is mortified that her tryst with Biebs is now out in the open!

According to HollywoodLife.com, the 36-year-old was hoping nobody – including Scott Disick - would find out about her late-night rendezvous with the 21-year-old singer, who is 15 years her junior!

Kourtney Kardashian. Photo: Getty

“Now that people know [Kourtney] definitely is embarrassed because she now has to answer more questions than she ever intended,” spills a source.

Kourtney Kardashian and Justin Bieber. Photo: Splash

But there's one person who is thrilled that their fling is out in the open - her mum Kris Jenner!

“[Kris] adores Justin and if he can put a smile on her daughter’s face, then that’s all that matters,” adds the source. “Kourtney deserves to be happy and have some fun in her life.”

Scott Disick. Photo: Getty

And apparently even Scott, 32, isn't mad about the rumours about Kourt and Biebs, as he had to go through this in August when he reportedly cheated on his baby mama with his ex Chloe Bartolli!

"He feels he has to take the humiliation," a source tells Us Weekly. "He doesn't believe that it's real."

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