While on Larry King Live Thursday night, the host used his reporting skills to find out if Nick Jonas and Miley Cyrus are dating.

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After talking about Nick's recent high school graduation, Larry King asked Joe Jonas about his "female situation" and if his girlfriend, actress Camilla Belle, is as famous as Nick's. (Watch video at 1:45 mark.)

Joe's response?

"I don't think anyone's as famous as Miley Cyrus," he said.

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After realizing he outed his brother's relationship, he quickly asked oldest brother Kevin to chime in before Nick interjected.

"I think there's a part of our life that we always try to keep private," Nick said.

Last week, Cyrus -- who recently split from beau Justin Gaston -- said it is nice to be back on friendly terms with her ex.

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"He's my best friend, and we still hang out all the time," she said last Friday on 107.5 The River's Woody and Jim morning show in Nashville. "We've definitely reconnected. We don't know what's going to happen in the future, but right now we're just kind of kicking it and hanging out as much as we can."

Nick, who split with Cyrus at the end of 2007, recently took a trip to Georgia to visit the Hannah Montana star, who is now shooting the drama The Last Song.