Kim and Khloe Kardashian are angry over Scott Disick's new girlfriend - Kim and Khloe Kardashian are not happy with Scott Disick's new girlfriend.

E! News reported on Tuesday that Disick, 32, who had a highly publicized split from Kourtney Kardashian over the summer, is dating Swedish model, Lina Sandberg.

"Khloe and Kim know about it and are pissed off because they are overprotective of Kourtney," a source tells E! News, adding that no one from the family have met Sandberg, because she and Scott are just "casual."

"None of them are taking it very seriously because it's just another random girl that Scott is seen running around with," the source continued.

"He's made it apparent that he's still not over Kourtney and would drop any chick if Kourtney decided to take him back."

Another source echoes similar sentiments, telling E! News, "At the end of the day, Scott wants his family back together. He wants to be back with Kourtney. At this point, anyone else is just a distraction."

Meanwhile, a source close to Sandberg tells E! News, "She wants to protect him right now. She's very private and loyal. At this point, it's very casual. She likes him and he likes her and they're seeing where things go. She's well aware of Scott's past and knows 'he's going through a lot personally.' She's told friends he's a really good person."

The insider added, "She insists this is not what she wants to be recognized for. She comes from a good family. Her parents are professors in Sweden and her sister is an attorney."

A source told us at the time of Scott's breakup, "Kourtney has always taken Scott back and been by his side, but now with three kids [Mason, 6, Penelope, 3, and Reign, 1] it has gotten old. Kourtney has to do what's best for the kids."