Justin Bieber & Kourtney Kardashian Hot Hook-Up Timeline Revealed As Scott Disick Picks Up Pieces Of Shattered Life

Justin Bieber dating Kourtney Kardashian initially sounded like a rumor found only in the most fictional of tabloids. But as confirmation from more sources, complete with photos, surfaced after Kourtney had suffered through her summer split from her baby daddy Scott Disick, with whom she had been for nine years, it became more believable. So just how did Kardashian go from the point of deciding to dump Scott after his repeated binge drinking, partying, and cheating scandals and hook up with 21-year-old Justin?

Kourtney, 36 and the mom of three, began her unexpected romance just by having a desire to have more fun in her life, a source told Us Weekly. The hook-up began following Kardashian’s split from her baby daddy in July. And for the first time in a long time, Kourtney was ready to have fun, with the Biebs ready to lead the way.

“Justin started hanging out with Kourtney alone because she started going out more,” said the source. “Remember, she never really went out before, so he’s been showing her a good time.”

And the good times began about one month after Kardashian’s July break-up. Following that initial hook-up, Kourtney and her new boy toy were seen in public for the first time as a couple in October. They dined at a Hollywood lounge called the Nice Guy and then headed to Universal Studios’ Halloween Horror Nights.

Since then, the unlikely duo have been spotted in other places, and Bieber is enjoying the boost to his ego that has come with hooking up with Kourtney, a source told People.

“He has had a huge ego boost from hooking up with [Kardashian]. It’s been going on for a few months,” shared the source. “He is used to being swooned by young girls that have nothing else going on. [Kourtney] is a hot mom with a career.”

Kourtney and Bieber were “super touchy feely” on a recent public date, an insider revealed to People. As for any hints that the pop star is serving as a rebound romance for Kourtney, the 21-year-old doesn’t care.

“He more thought, ‘Wow,’ and couldn’t believe that she would go for him,” added the insider. “He brags about how hot she is. He is happy while it lasts. Even if [Kourtney] is using him to get back at Scott, he couldn’t care less.”

And the 36-year-old mom of three isn’t stressing about analyzing the hook-up either, noted the source.

“It’s just one of those things where it makes Kourtney feel good about herself. It’s not serious at all. This young guy is into her, he thinks she’s hot and she’s older. She just wants to have fun.”

While the reality TV star is having fun with the Biebs, there have been some challenges. And among them are her discovery of what the pop idol said about how she’s using him, as well as the reports surfacing that he’s also hooking up with Hailey Baldwin.

As the Inquisitr reported, Justin joked about his romance with Kourtney during a recent radio show interview.

“I’m being used, man. What can I say?” teased the Biebs. “We’ll leave it at that.”

That public comment on what Kourtney thought was their private romance made her irate, and she’s regretting the hook-up after learning what her boy toy had to say about her.

As for those reports that Bieber is romancing Hailey Baldwin? Although Kardashian may have concerns, Hailey has insisted that she and the Biebs are just pals, reported the Daily Mail.

“I’ve known him since I was so young – since I was like 13 – and we’ve just been good friends over the years,” insisted Baldwin. “We have just stayed close and there’s nothing more to it than that.”

While Kourtney ponders her options for the future, her ex is apparently also moving on and trying to change his life. Once close to the supportive Keeping Up with the Kardashians family and living with Kourtney in his role as her boyfriend and father to their three children, Disick recently entered rehab again after that final bout of binge drinking, partying, and cheating caused Kourtney to boot him out.

Now finished with rehab, Scott’s hoping to change his life and has even denied rumors that he’s been trying to start a relationship with a supermodel, a source told E! News.

After all those years of partying, Disick’s decided it’s time to make a dramatic change and focus on family.

“He just moved to Hidden Hills and wants to just focus on being a good dad [and] not dating,” revealed the insider. “He’s just focused on the kids and getting himself together.”

As to whether in the process of “getting himself together” he can persuade Kourtney that he’s truly changed enough to take him back is not yet known. But another insider told E! News that he hopes he can succeed.

“At the end of the day, Scott wants his family back together,” revealed that insider. “He wants to be back with Kourtney. At this point, anyone else is just a distraction.”

[Photo by Frazer Harrison/Getty Images]