Zac Efron dating Emma Roberts?

Zac Efron is reportedly dating Emma Roberts. According to a new report, the pair where seen “full-on making out” at an after-hours party hosted by Lance Bass on October 30.

“Zac and Emma both wound up at Lance’s party, and before the night was over, they were all over each other,” a source said.

“They took each other’s numbers and seemed into each other.”

Efron has previously dated his High School Musical costar Vanessa Hudgens, while Roberts — the niece of actress Julia Roberts — has been linked to Glee star Chord Overstreet.