Although the Rover star may have been making one of two appearances at some Hollywood parties, with a number of Hollywood ladies, it seems he'd still rather spend an evening chilling out, out of the spotlight.
This time, instead of newly short-haired Kristen Stewart by his side, he had heartthrob Zac Efron there.
Sources for US Weekly said, "Zac has gotten to know Rob more and more through mutual friends and they enjoy talking about what they're working on in the future.
Zac really likes the movies that Rob is doing right now and Rob has so many questions about growing up in Hollywood like Zac did.
They seem to really click."
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