We guess they're finally pulling the plug!

Khloe Kardashian and estranged husband Lamar Odom have finally signed divorce papers to end their marriage, and apparently the NBA star was motivated to end it because of the reality star's new romance with James Harden.

"They saw each other when she was in Vegas and both signed the divorce documents together," a source told Us Weekly. "Lamar was really hurt and felt like Khloe had no respect for him after she was out in public with James Harden. He just kept seeing her with different guys and that was it for him. French was at least a relationship but here she was with another guy," the source added.

Apparently Lam Lam had enough with the in between stage!

"He finally came to his senses and told her he wanted out and signed the papers. He confronted her about James and she went to Vegas to see him while she was out there with James and they got it done. He just wanted out," an insider revealed.

The pair tied the knot after dating for just one month in September 2009, and split in December 2013.

We loved Khlomar, so this is a sad day!