Zac Efron & Vanessa Hudgens: Details Date Night

Zac Efron and good friend Sterling Knight take a load off as they chat inside the Details magazine party held at a private residence in Los Angeles on Tuesday night (August 10).

Other friends of the 22-year-old actor who showed up to celebrate his September cover include girlfriend Vanessa Hudgens, 17 Again costars Leslie Mann and Michelle Trachtenberg, Glee‘s Matthew Morrison and producer pal Adam Shankman.

An inside spy told JustJaredJr.com that Zac and Vanessa were spotted dancing with each other and making out during the party.

FYI: Vanessa was wearing a Helmut Lang crochet-back knit dress. Sterling is wearing Creative Recreation Milanos.