Kristen Stewart can't wait to walk down the aisle with Robert Pattinson -- for Breaking Dawn, that is.

During a press junket for Eclipse, the 20-year-old actress fantasized over what her character should wear when she weds vampire Edward Cullen in the saga's final installment.

"Bella would definitely want something classic and simple, too -- but beautiful," Stewart told reporters, before adding that writer Stephenie Meyer probably has "really specific ideas" of her own.

Stewart also shared that she envisions the dress being white or cream-colored, provided its "classic, like the idea of what a [traditional] wedding dress [should be]."

The movie star also assured reporters that even though her character is hesitant to tie the knot, Bella's excited to spend eternity with Edward.

"I think it's going to be a beautiful, sort of monumental wedding because he wants it so means so much to Edward," Stewart explained. "That's usually the opposite. Usually the girl wants it, and I think that's cute."

But don't expect Pattinson and Stewart to walk down the aisle in real life any time soon.

Us Weekly has reported Pattinson "wants to ask Kristen to marry him," but Stewart "just doesn’t love him as much."