We saw an all-grown-up Zac Efron in 'The Lucky One' and now he's taking the next step in his mature career -- sexy photo-shoots. We can't say we're unhappy with this new development.

Efron gets down and dirty on the streets of Los Angeles for the Brazilian company John John Denim. He'll be the new face of the fashion line...but it's more than just his face we'll get to see, of course. We love that he's showing off his muscular arms here. We just hope that next time someone can persuade him to display those chiseled abs we know he has.

Take a look at the photos yourself below.