Jennifer Aniston and Justin Theroux are reportedly having marriage troubles, and it's all because of the "Friends" star's friendship with comedian Chelsea Handler.

A report from OK! Magazine, via Celebrity Dirty Laundry, claimed that Jennifer Aniston invites the comedian back to her house when Justin Theroux is out on the shoot for the HBO series, "The Leftovers."

One day, he allegedly went home unannounced only to find Chelsea Handler naked in the kitchen while cooking breakfast and that really put a strain on their marriage.

"Chelsea thought it was hilarious," the source claimed. "But Justin was really annoyed. Apparently Jen got in the habit of inviting Chelsea over for boozy girls' nights whenever he was away filming."

The source went on to add, "It bugged him to come home and find Chelsea there and the house a mess, but he bit his tongue. But now that he and Jen are married, he is establishing some ground rules, chief among them is that Chelsea is no longer welcome in their guest room."

This wasn't the first time that Jennifer Aniston's friendship with Chelsea Handler reportedly caused friction on her relationship with Justin Theroux.

Back in March 2014, Star magazine, as shared by Daily Mail, claimed that Justin Theroux doesn't like Jennifer Aniston hanging with the comedian.

"Justin thinks she's rude and obnoxious," the source claimed. "He feels she lures Jen to parties and encourages her to act like she's single."

In fact, Chelsea Handler was allegedly the reason why Justin Theroux and Jennifer Aniston broke up for a brief period. And it's not only because "The Leftovers" actor thinks that the comedian is obnoxious and loud. There's also another reason why he was not enamored with the friendship.

"Jen is basically Hollywood royalty and Chelsea uses her to increase her own fame," the source added.

Jennifer Aniston and Justin Theroux have yet to respond to this latest rumor involving Chelsea Handler and their alleged marriage troubles.