During a recent interview with E! News, Khloé Kardashian's friends Malika and Khadijah Haqq revealed that the "Keeping up With the Kardashians" star and her newest beau James Harden are going strong in their relationship.

"[They're] great!" Khadijah told E! News, while promoting her new E! series "DASH Dolls."

"Khloé's really happy," Malika added.

E! News reports that Kardashian and Harden romance rumors first surfaced when the two were spotted on vacation together in Las Vegas during Independence Day weekend.

Since then, the couple has reportedly continued traveling many places together and often exercise together. Just recently, Kardashian threw Harden a lavish birthday party in Los Angeles. The party's location was on a boat.

When asked to describe the birthday festivities, Malika said, "It was a blast!" while Khadijah added, "so much fun."

"Honestly, I don't think there's anyone who's been to a Kardashian affair that was not a blast," Malika continued.

Kardashian did not post any Instagram photos from the birthday celebration, but she has posted a few photos of herself and Harden enjoying quality time together and with her family.

Check out some of the Instagram photos below.

Though Malika and Khadijah have only disclosed a few details regarding Kardashian's relationship with Harden, a source from the Hollywood Life claims that Harden is very invested in the relationship and wants to build a life with Kardashian in the future.

The source alleges that Harden wants to be Kardashian's "baby daddy" one day and hopes to marry her in the future.