The 21-year-old was spotted kissing Lutz, 28, on his ears and rubbing his back at the party Dec 27.
A source told people.com that Cyrus and Lutz arrived at the event separately but got together at about 2.30 a.m. after he approached her table in the VIP section.
"They talked at very close range for a long time while Miley was laughing and rubbing his back. At one point she kissed his ear," the source said.
The source also said that the duo left the venue together despite conflicting reports suggesting that the "Twilight" star left without the "Wrecking ball" singer.
"They left in the same large group but Kellan was a few steps behind her the whole time. Most people chasing after Miley didn't even notice him right behind her. He did a pretty good job of blending in," said the source.
--IANS (Posted on 29-12-2013)