As Khloe Kardashian's brother-in-law, Kanye West had "the talk" with James Harden.

West, at the urging of his wife and Khloe's sister Kim, sat the Rockets star down and warned him not to cheat on the reality television star, dishnation.com reported.

Khloe Kardashian "Is The One," James Harden Says To Confidants, According To Report

"Kanye pulled James aside and straight up said that he better not be messing with Khloe," a source close to the family told dishnation.com. "Everyone knows that Kanye speaks his mind and he made it really clear that Khloe has been treated like crap in past relationships, and she deserves a guy who won't hurt her.

"He told James to break it off ASAP if he had other intentions, but James reassured him he really cares for Khloe."

Lamar Odom's 'Fatal Attraction" For Khloe Kardashian May Scare Off James Harden

Harden and Khloe reportedly have been seeing each other since they had a secret rendezvous in Hawaii in June. Shortly after that trip, an Australian college student accused Harden of sleeping with her in Sydney.

The allegations did not break up Harden and Kardashian.

According to dishnation.com, Kim doesn't want to see Khloe's heart broken again, which prompted her to enlist Kanye to talk to Harden.

"It's well-known within the basketball community that James is quite the womanizer," the source said.

"Kim watched Khloe go through hell with Lamar [Odom], who broke her heart by cheating with multiple women. When she heard that Khloe was dating James, she freaked out and begged her to think twice. But Khloe is so into him that she has blinders on."

Late last month, the NBA star told close friends he thinks Khloe "is the one," HollywoodLife.com reported.

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