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James Harden, Birthday Party, Khloe Kardashian

FAMEFLYNET/AKM-GSI

Khloe Kardashian and James Harden are going strong!

After a few months of dating, the 31-year-old Keeping Up With the Kardashians star and the 26-year-old basketball star are stilling having fun romancing each other.

"[They're] great!" Khloé's gal-pal Khadijah Haqq McCray told E! News exclusively this week while promoting her new E! series DASH Dolls.

"Khloé's really happy," bestie Malika Haqq added.

Khloé and James first sparked romance rumors back on July 4 when they were spotted celebrating the holiday together in Las Vegas. Since then, they've traveled together, hit up spin classes together and Khloé even threw James a huge birthday party on a boat in L.A. two weeks ago.

"It was a blast!" Malike said of the all-white b-day bash.

"So much fun," Khadijah gushed.

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

As for their romance, Malika reiterated, "She's very happy."

"She deserves it," Khadijah added. Too cute.

Watch the premiere of DASH Dolls Sept. 27 at 10PM, only on E!

PHOTOS: Khloé & James' cutest pics