Looks like newly engaged Scarlett Johansson can cross shopping for a bridal gown off her to-do list.

“I’m definitely doing her wedding dress,” fashion’s Stella McCartney, 36, told People at a Tuesday night cocktail party she hosted at her West Hollywood boutique � where she arrived fashionably late along with the couple Charlize Theron and Stuart Townsend.

There’s only one hitch before Johansson, 23, gets hitched to fianc� Ryan Reynolds (who proposed recently), according to McCartney: “She doesn’t know it yet.”

As for what the British designer, who created Madonna’s gown for her 2000 wedding to Guy Ritchie, has in mind for the young bride-to-be, “You know, some kind of dodgy, black thing,” McCartney, tongue firmly planted in cheek, joked. “Latex! Latex for Scarlett!”

On a more serious note, McCartney said, “I’m so thrilled for her.”

Credit: People.com