In the latest 'Keeping Up With the Kardashians' news, Kourtney is allegedly annoyed that her longtime boyfriend Scott Disick is spending more time with her little sister, Khloe, than with her, according to a report.

"Everyone knows that Khloe and Scott are practically best friends, but Kourt is starting to get irritated by the amount of time they're spending together," said an unnamed insider who claims to be of Kourtney's friends, according to a Web Pro News report.

Kourtney currently has two children (Mason Dash Disick and Penelope Scotland Disick) with Scott and they're expecting one more in the Winter, possibly December.

"The whole situation has irked Kourtney. Maybe it's the pregnancy hormones, but she's politely asked Khloe to back off and give them some room. Needless to say, it's causing no end of stress for the sisters," said the source.

The aforementioned Kardashian sisters and Disick are currently filming their new spinoff series 'Kourtney & Khloe Take the Hamptons', where Kim's sisters live in the Hamptons and work at their store, Dash, in New York.

According to the Web Pro News, there is no word if Khloe stopped hanging out with her close friend and potential brother-in-law Scott Disick, after her sister's supposed request.

"Looks like @KhloeKardashian has a new bath buddy! -->http://on.vh1.com/1k8rLUC," wrote VH1 Celebrity on its Twitter page on July 21 with a photo of Khloe enjoying an innocent and playful bubble bath in a tub with Scott.

Khloe is currently dating rapper French Montana after she moved on from her previous relationship with her estranged husband ex-NBA player Lamar Odom.

'Kourtney and Khloé Take The Hamptons' debuts on September 14, 2014, exclusively on the E! Network.

'Keeping Up with the Kardashians' Season 9 airs every Sunday at 9 p.m. ET on the E! Network.