Miley Cyrus Liam Hemsworth Split Over Kellan Lutz Sex Life? Sources Confirm Couple Has ‘Great Chemistry’ Hooking Up Despite Not Dating

Miley Cyrus and Kellan Lutz "are having fun together" and have "amazing chemistry," despite the "Hunger Games" star denying rumors they are dating, leaving many wondering if their love affair could have led to the "Wrecking Ball" singer's split with Liam Hemsworth.

"They are both spontaneous, fun people, so their personalities match," a source close to Miley Cyrus said, according to PerezHilton.com.

"They are having fun together. They have very similar outlooks. I am not sure if it has a future but they have great chemistry so for the time being they are just having fun."

The couple was spotted making out at a Las Vegas party last month and "didn't seem to care who was watching," an eyewitness told E Online.

"It wasn't a secret that they were together."

Miley Cyrus posted several messages on Twitter before 2013 ended about memories she shared with Liam Hemsworth, leaving many fans wondering if she regrets her split with the former "Hunger Games" star.

"What about that night we laid by the fire and listened to The Cardigans all night long..... good times," she wrote in one message.

"So many good memories made this year."

Miley Cyrus is making headlines for her allegedly bisexuality after her break up with Liam Hemsworth, but one source close to the "Wrecking Ball" star suggests it may be a publicity stunt.

"Miley loves guys," a source told HollywoodLife.com.

"[She] will always love guys, and she will eventually settle down with one - not anytime soon, but eventually. Kissing girls and grinding on girls and doing all these things she does is in the moment, and her having fun. She's a wild card and wants to have fun, and she loves making out. If a girl is in the way, then so be it. So she is a bisexual in public."