What happens in Vegas doesn't stay in Vegas if you are Khloe Kardashian.

The Keeping Up With The Kardashian star was spotted getting cozy with NBA star James Harden over the Fourth of July weekend.

The pair hung out at Encore Beach Club in Las Vegas, where their public display of affection ignited dating rumors, but E! News reports it may be to early to name these two Hollywood's newest couple.

"They were bouncing around to all their friends honestly," a source told E!. "They sat next to each other and talked for a bit but they were more there to have fun it seemed!"

One person who is not particularly keen on the latest coupling rumors is Harden's ex, rapper Trina. Us Weekly reports that the tweet she posted on Sunday writing,"Sloppy seconds..." was about Kardashian.

Before being linked to the Houston Rockets player, Kardashian was dating French Montana, who also once dated Trina.

If Harden and Kardashian get serious, this will be the reality star's second relationship, since breaking off her marriage. She is still legally married to ex-basketball player, Lamar Odom and although the couple has called it quits for some time now, their divorce is still pending since December 2013.