Khloe Kardashian is considered a favorite to co-host “The X Factor” and her famous sisters are reportedly pretty jealous, according to sources who spoke to the National Enquirer.

Instead of being happy for their little sister, Kim and Kourtney Kardashian reportedly are worried Khloe won’t have enough time for their family reality show if she becomes an X Factor host.

“Kim and Kourtney recently ganged up on Khloe for branching out on her own,” a source told the tabloid.

“They know that if Khloe gets the X Factor gig, it will occupy so much time that she won’t be available for their TV show anymore.

"They’re worried that this will be the beginning of the end of the Kardashians."

It’s unclear whether the girls are just upset about their livelihood in reality television or are just plain jealous that they weren’t chosen considering middle sister Kim, who is arguably the biggest star of brooding beauties, and has branched out several times to work on her own personal projects.

“It’s a done deal with Khloe and ‘The X Factor,’" the source told HollywoodLife.

“It’s a wrap for her and [she's] more than excited to get out there and do the show and get more notoriety.

“There was a little beef at first between Khloe and Kim because Khloe made a joke to Kim about Kanye [West] not getting the Idol gig. I think Khloe said something to Kim like ‘I guess America thinks I’m a better talent judge than your man.’

“Kim got pissed at Khloe but you know how these girls compete for everything. They like to hide that stuff but it come out sometime.”

However, it’s been rumored in the past that Khloe was upset when her sister worked on solo gigs.

“Kim launched her own fragrance, was a judge on Project Runway and made an appearance on America’s Next Top Model,” an insider said to the National Enquirer.

“But now Khloe is doing exactly the same thing, prompting Kim and Kourtney to call her a hypocrite!

“Besides that, Kim thinks she should be the one on ‘The X Factor’ because she’s the clan’s biggest star.

“Hosting ‘The X Factor’ is a HUGE opportunity for Khloe, and she bluntly says her sisters can take it or leave it.

“Kris is the only one who isn’t too upset since she’s Khloe’s manager and stands to get her cut anyway.

“Still, she doesn’t like to see her children fighting like this.”

But upsetting her sisters aren’t the only people Khloe has to worry about.  TMZ reported E! network has to give Khloe permission to sign on with “The X Factor” considering she has an exclusivity contract with them.

The network doesn’t mind if Khloe hosts the show, but they don’t want it to interfere with her time on “Keeping Up With The Kardashians,” TMZ reported.