It looks like co-stars Miley Cyrus and Liam Hems­worth are more than just friends, people.com reports.

Last Wednesday, as Cyrus bid the actor goodbye at the Nashville airport, the two kissed — and were “full-on making out,” said Alex Emanuel, an actor who was a few feet away from the couple and witnessed Cyrus, 16, act “as giddy as a schoolgirl.”

As Hemsworth headed for the terminal doors, “she jumped into his arms and threw her arms around his neck and kissed him and leaned back and he was dipping her,” said Emanuel. “It was like a scene out of an old movie where the guy’s getting on a train and they’re saying their goodbyes.”

The two actors recently wrapped the film The Last Song in Tybee, Ga., and attended the film’s wrap party together on Aug. 16.

Cyrus maintained her her single status, tweeting “I do not have a boyfriend.”

But she’s apparently been spending time with Hemsworth: “@mommytish and @auntedi and I are introducing the aussie to (restaurant) cracker barrel!!! Yummyyy :)” and watching TV together: “I kinda want to go see The Time Traveler’s Wife but I think I’ll just sit around and eat sushi and watch Liar Liar with Liam.”