Will Jennifer Jason Leigh get high on "Weeds"?

Jennifer Jason Leigh

is set to join all the pot-lovin' fun on Showtime's "Weeds" when the fifth season begins in June.

The 47-year-old Leigh - from "Fast Times at Ridgemont High" and "Margot at the Wedding" - will be in at least two episodes playing the wacky, estranged older sister of

Mary-Louise Parker

's pot-dealing housewife character.

Sources said that Leigh originally said no to the role, which reportedly will require nudity. She decided she wanted the role after other actresses were considered.

Here's hoping we see some good crazy from Jennifer.

Remember "Single White Female?"

| Lisa Gutierrez, The Star