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Khloe Kardashian, James Harden

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Things are majorly heating up between Khloé Kardashian and James Harden!

Almost two months into their summer romance, the smitten pair appears to be going strong. So strong, in fact, that the Keeping Up With the Kardashians star threw her NBA player beau a blowout, all-white yacht party to celebrate his 26th birthday! Not too shabby.

Between Las Vegas weekend getaways, Chipotle outings and intimate dinner dates, these two lovebirds simply can't get enough of each other! If you need more proof, just check out their adorable relationship pics!

Watch the premiere of Keeping Up With the Kardashians on Sunday, Sept. 20 at 8 p.m., only on E!