Mary-Kate & Ashley Olsen

'Full House' twins get back to work

Drinking age since June, the former “Full House” stars are individually working their way into grown-up performance careers — with a theme of vice emerging early on.

Mary-Kate has an ongoing arc on Showtime’s “Weeds” as a devout Christian who smokes a little bud. She’s also set for a small role alongside Ben Kingsley in “The Wackness,” which focuses on a psychotherapy patient who pays his shrink with “the kind.”

For her part, Ashley is in talks to star alongside Billy Bob Thornton and Kim Basinger in “The Informers,” an adaptation of a Bret Easton Ellis novel — a realm in which pot consumption could often be considered a mild indulgence.

How this transition to adult-career lives will affect, er, joint fashion-merchandising operations that drew the blueprint for the celeb licensing biz is anyone’s guess. In other words, how will parents of girls ages 4-14 feel about buying from Wal-Mart’s billion-dollar Mary-Kate and Ashley clothing line now?

A personal publicist for both thesps/fashion impresarios suggests that their apparel lines are already growing up along with their acting careers — the Row, for example, is full of high-end goods targeted to women in their late 20s and beyond.

In fact, just because the Olsens have established themselves as tween fashion icons “doesn’t mean they shouldn’t be allowed to work and do stuff that interests them,” she adds.

Recent breakthrough: The sisters’ fashion line the Row is going strong. Mary-Kate has a recurring role on Showtime’s “Weeds” this season.

What’s next: Mary-Kate makes out with Ben Kingsley in the upcoming indie “The Wackness”; Ashley in talks on “The Informers.”