Zac Efron Poses with a Nude Woman for Magazine

Monday March 16, 2009 07:40 PM EDT

Zac Efron

F Micelotta/Getty

• Facebook
• Twitter
• Yahoo Buzz
• E-mail

They never taught this in high school.

Zac Efron gets dirty – then a little dirtier – as he rolls around on the ground with a naked woman in a photo spread for Interview magazine's April edition.

"It was definitely different from anything I had ever done before," the 21-year-old High School Musical heartthrob says. – Mike Fleeman