Reality star Khloe Kardashian was said to have reconciled with her ex-husband Lamar Odom but rumours suggest she has found herself a new basketball player to romance.

The Keeping Up With The Kardashians star was spotted attending singer Chris Brown's Fourth Of July party at Drai's Club in Las Vegas where Houston Rockets star James Harden was also seen.

Images from the evening show Kardashian, 31, and Harden, 25, dancing closely together and talking on the dancefloor.

According to TMZ, the new friends enjoyed dinner together earlier in the evening at the Red 8 restaurant before attending the Loyal singer's party.

The following day, on 5 July, eyewitnesses reportedly spotted the pair enjoying a pool party held at Wynn hotel's Encore Beach Club.

Social media has run wild with dating rumours since the photos emerged and it appears as though the NBA player's ex-girlfriend, rapper Trina, weighed in on the speculation, tweeting:

A source also claims that Trina, who once dated Kardashian's ex-boyfriend French Montana, finds it "funny" that the reality star has been linked to another one of her exes.

The insider told Us Weekly: "Remember French Montana was also with Trina before Khloe. Khloe and James are not officially dating though and are just friends hooking up.

"Trina has been telling her friends Khloe can continue to have her sloppy seconds once again. Trina still hasn't spoken to Kim [Kardashian] since Khloe and French got together and you know they were good friends."

They added: "Trina says Khloe may be the baddest of the Kardashians but she'll never be her."

Reports had previously claimed Kardashian was close to getting back together with her estranged husband, basketball star Odom, after they separated in 2013.

The E! star's on/off romance with hip hop star French Montana appeared to fizzle out in early 2015.

In November 2014, Trina told radio station Power 105.1's Breakfast Club that Montana abruptly ended their relationship when he started dating Kardashian.

She revealed: "I found out like the rest of the world. It was all over the internet, it was all over my Twitter, my Instagram, everything. And I mean it's a little surprising when you're living with somebody that they're running around with somebody else."