The former couple, who announced their split just weeks ago, was caught canoodling in LA on Friday night, Access Hollywood has learned.
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The easy-on-the-eyes pair headed to SHG's Eden Hollywood on Friday, along with actress pal Brittany Snow, to celebrate the hotspot's grand opening.
Zac and Vanessa reportedly took to the dance floor before "making out on and off for the last hour or so until closing," according to a source for People.
"They acted like there was no one else in the room," the source reportedly added.
As previously reported on AccessHollywood.com, the former Disney stars, who played on-screen couple Troy and Gabriella in the hugely successful "High School Musical" series, split in December after four years together.
"It's nothing dramatic," a source told E! Online's Marc Malkin at the time, who broke news of the split. "There's no third party involved."
Apparently there was no drama in the breakup, another source told Malkin.
"They were together for so long. It just ran its course," the source said.
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