Vanessa Hudgens and Austin Butler

Last week, Vanessa Hudgens told WHO she was single, but if recent photos are any indication of her relationship status, she's at least having fun playing the field.

Hudgens, 22 – who split from longtime Disney beau Zac Efron last year – has been spotted less frequently with recently rumored flame Josh Hutcherson. But on Saturday night she was photographed smooching actor Austin Butler, 20.

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The two attended a 30th birthday party at Hollywood hotspot Lexington Social House on Saturday for pal Ashley Tisdale's sister, Jennifer.

"They were together but in a large group," says a source. "They were not doing anything to show that they were really together romantically but they were definitely hanging out and having fun."

Following the celebration, Hudgens and Butler headed to Bob's Big Boy, a local eatery open late.

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Butler, who once played Jamie Lynn Spears's love interest on Zoey 101, recently starred in Sharpay's Fabulous Adventure alongside Tisdale.

Reps for the actress did not immediately respond to request for comment.