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Khloe Kardashian and Tristan Thompson have scored in the romance department.

More than a month after relationship rumors sparked between the Keeping Up With the Kardashians star and NBA player, E! News has learned even more about the couple.

"Khloe and Tristan are doing really well. They are exclusive," a source shared with E! News. "There is a lot of chemistry between the two of them and they are happy together."

Our insider added, "She's even gotten close with a few of his friends and they all hang out sometimes. Khloe hasn't had this much fun with someone in a while."

Last weekend, fans learned that the E! star flew to Ohio again to support her beau at a Cleveland Cavaliers preseason game. And as it turns out, more trips out east may be in the immediate future.

Khloe Kardashian, Tristan Thompson

Seth Browarnik/startraksphoto.com

"She had a few clothes shipped to Ohio because she plans to keep flying back and forth during the season," our source explained.

While the couple tries to keep their romance on the down low—well, unless they are locking lips at a Kanye West concert—Khloe's mom Kris Jenner is fully supportive of the relationship. In fact, she recently gave E! News the seal of approval at a red carpet event.

"They are really cute," she shared with us. "You know, she's having a good time. He seems like a really nice guy."

As for the secret to making it work when they can't be in the same city at the same time, it's all about the bond between a pair.

"I think just with any relationship, just in life, I think it's about chemistry and about values," she shared. "You know, about how two people get along, so...you know how that goes!"

New episodes of Keeping Up With the Kardashians return Sunday, Oct. 23 at 9 p.m., only on E!