Rob Kardashian is not a Khloe Kardashian James Harden fan apparently with rumors swirling he's feuding with his older sister to defend Lamar Odom.

In an item on Celebrity Dirty Laundry, it was mentioned that the younger "Keeping Up With The Kardashians" star even skipped Thanksgiving dinner with the whole family because of the alleged feud. The purported reason behind the new fight was Khloe's relationship with the Houston Rockets player.

"Rob blames his sister for Lamar's overdose, he says things never would have gotten this bad if Khloe hadn't toyed with Lamar's feelings," an insider told the source above. "And, Rob was disgusted with Khloe when she stepped out with James Harden - while her husband was lying in a hospital bed."

Last month, Radar Online also reported on the brewing feud between the Rob Kardashian and Khloe Kardashian siblings concerning James Harden and Lamar Odom.

"Rob's drawn a line in the sand as far as Khloe's concerned," a source revealed at the time. "It's very sad because they were always the closest siblings of the family."

The Kardashian siblings have yet to address this latest rumor but the "Strong Looks Better Naked" author did admit in an interview with Ellen DeGeneres recently that her family supports her decisions these days when Lamar Odom was concerned.

Kris Jenner also indirectly dispelled rumors that the younger "Keeping Up With The Kardashians" star was fighting with his sister and even skipped thanksgiving because of it.

"He lives with Khloe," the momager told Maria Menounos on SiriusXM as quoted by Us Weekly. "So he was around, and then went over to a buddy's house. He's doing all right. You know, he's doing his best. He's not into being on camera as much as the rest of us. But he's working on himself. He's going to be okay."

Amid all the rumors, Khloe Kardashian and James Harden reportedly remain strong according to the Inquisitr. She even recently updated her app and included the Houston Rockets player's date night style.