Justin Bieber & Kourtney Kardashian Hot Love & Baby Rumor Get Bombshell Reaction From Selena Gomez: Biebs Sorry?

Justin Bieber and Kourtney Kardashian are happily heating up their hook-up. Together since autumn (just after Kourtney dumped her baby daddy Scott Disick), Kardashian, 36, and the pop idol (who recently turned 22) are flaunting their affair. Kardashian even recently showed off a Cougar T-shirt to show she’s keeping her cougar canoodling alive and well, noted UInterview, which cited sources confirming the unexpected romance.

While Kardashian is letting her T-shirts do the talking, the Biebs is more blunt about their affair. On The Bert Show, he infamously described himself as “being used” in reference to his hook-up with Kourtney.

“No, no, but for real, she’s great,” added Justin quickly.

The origin of their affair has been traced back to October, with sources confirming that the two had been enjoying flirty fun (and more) for months.

“Justin bragged to friends recently that he has been hooking up with Kourtney Kardashian,” noted one source.

A second elaborated on their mutual enjoyment of the romance.

A second source added, “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.”

Someone who isn’t having so much fun with their hook-up, especially since a new report claims that Kardashian is pregnant with the Biebs’ baby, is Selena Gomez, the pop idol’s ex. Selena is horrified by the rumors, an insider told Hollywood Life.

When Gomez learned about the rumors that Kourtney could possibly be pregnant with a Biebs baby, Selena immediately anticipated the questions that could arise. And although Gomez isn’t feeling envious of the relationship, she is fed up with constantly getting barraged by questions that relate not to her own music career or even her personal love life but her ex-boyfriend.

“Stupid,” the insider summed up of how Selena feels when it comes to the pregnancy rumors.

Gomez does not believe in the reports that Bieber has gotten Kardashian pregnant, according to Hollywood Life’s insider, who noted that Selena is painfully aware that it seems inevitable that she’ll have to keep trying to avoid questions about Justin.

“[Gomez] has heard about [the baby report] and thinks that it is stupid. She doesn’t think it’s real, but also doesn’t want to think about it or talk about it. She is just mad that if she does an interview in the near future she will have to dodge the question.”

Moreover, even without the pregnancy reports, Selena feels uncomfortable about the situation that she’s in ever since splitting from the “Sorry” singer. Gomez has gotten to the point where she’s looking to be famous for something other than Biebs’ ex-girlfriend.

“[Selena] doesn’t want to be put in that predicament. She wants to be asked and known for more than just him,” noted the source.

As for specifics on the pregnancy report, Hollywood Life cites a source claiming that Kardashian has confessed to friends that she and Bieber were “intimate,” and that the pregnancy is linked to her 22-year-old beau.

“The math is pretty clear. It would have to be a Bieber baby,” added the source.

However, Gossip Cop reports that the Kourtney and Biebs baby report is not true.

“Have you seen her body recently?!” pointed out one person denying the rumor, pointing to the Keeping Up with the Kardashians star’s flat tummy.

Amid all those rumors and hook-up reports, how does Bieber feel about Selena? Gomez remains in his heart and mind, according to an insider cited by In Touch Weekly.

And although “Jelena” doesn’t seem to be alive and well, there’s a hint in the way Bieber feels about his regret for Selena. That’s particularly true since news broke that Gomez suffered so much from their breakup that she is unsure about dating again, revealed the insider.

“Justin feels awful that Selena thinks relationships are hard after they dated. He never, ever wanted to hurt her or make her have a bad taste in her mouth about future relationships because of their own ups and downs.”

And here’s the sign that “Jelena” could make a return: The pop idol also would have a hard time dealing with the idea of Gomez being involved in a relationship with another guy, added the insider.

“On one hand, the thought of seeing Selena in a serious relationship with someone else would definitely be hard to swallow. But on the other hand, he wants her to be happy,” noted the source.

And so, the “Sorry” singer truly is sorry when it comes to any hurt that he caused Gomez.

“He hopes she can forgive him for past hurts and not let all that old drama stifle her love life or more importantly her self esteem,” the insider added.

[Photo by Pascal Le Segretain/Getty Images]