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Kourtney Kardashian Shares Photo Of Rob After Alleged Justin Bieber Hookup! Plus, How Did Scott Disick React?

Kourtney Kardashian shared a throwback photo of her younger brother, Rob, on December 16.

Kourtney Kardashian’s photo of herself and her brother comes just one day after Khloe posted an old photo of Rob, along with the caption, “If only you could see yourself through my eyes! I’ll forever be obsessed with you! My one and only! #MyAce.”

As fans of Keeping Up With The Kardashians have seen, Rob has been struggling with weight gain and depression for the last several years, and hasn’t been seen much in public. He’s also been involved in online rumors, which claim he’s feuding with family members, including sister Kim.

In other Kourtney Kardashian news, the reality star and mother of three was recently caught leaving the hotel suite of Justin Bieber at 4:00 a.m., and according to Us Weekly, the pair has been secretly hooking up for “months!”

Kourtney Kardashian parted ways with her former partner, Scott Disick, over the summer after he humiliated her in the South of France, where he was photographed getting cozy with his ex-girlfriend, Chloe Bartoli. And while there have been rumors regarding a possible reconciliation between Kourtney Kardashian and Disick, that now seems far from possible.

Although Kourtney Kardashian and Disick are regularly spotted together in Los Angeles, both with their three children, Mason, 6, Penelope, 3, and Reign, 1, and without, Us Weekly‘s source claims 36-year-old Kourtney Kardashian began hooking up with Bieber, 21, just weeks after their split, and never stopped.

“Justin and [Kourtney Kardashian] have been hooking up since late August, early September,” a source told the magazine, adding that Bieber has “bragged” about their recent rendezvous.

“Justin started hanging out with [Kourtney Kardashian] alone because she started going out more.”

As for how Disick feels about Kourtney Kardashian’s alleged new romance, the source explained, “He’s had so many stories about him recently, he has no reason to be pissed. He feels like he has to take the humiliation.”

Still, added the source, Disick feels Kourtney Kardashian is only hooking up with the younger star in order to get revenge on him. The source also claimed Disick felt her behavior was “dumb and immature.” Luckily, however, it hasn’t affected his parenting.

“He’s still sober and he’s great with the kids, and [Kourtney Kardashian] is happy that he’s so involved,” a source says. “He’s more involved now than he was before.”

In a separate report, via Gossip Cop, it was noted that Kourtney Kardashian wasn’t happy about her romance being a hot topic in the media. According to the report, Kourtney Kardashian let Bieber and his friends know she was “not pleased at all” to find out that their rumored romance had been leaked. That said, she can’t expect to keep her time with Bieber a secret if she’s going to be coming out of his hotel room in the middle of the night.

While Gossip Cop claimed Kourtney Kardashian wasn’t too serious about Bieber, a Hollywood Life source claimed otherwise on December 15. Below is what the source revealed.

“Justin has a real genuine interest in [Kourtney Kardashian]. She’s seasoned and mature and her energy compliments Justin’s. Not to mention, he loves older women. He loves how most of them are dominant and know exactly what they want. [Kourtney Kardashian] doesn’t play childish games like women his age, and he loves that. His respect level for Kourt is through the roof because of it.”

For more Kourtney Kardashian, tune into Keeping Up With The Kardashians Season 11, airing on Sunday nights at 9 p.m. on the E! Network.

[Photo by Frazer Harrison/Getty Images for Cosmopolitan]