This fall your kisser's going over to the dark side. Deep, saturated raspberry lips popped up on the runways this week — typically paired with a nude, natural eye — from the burgundy matte hues at Charlotte Ronson and Betsey Johnson to glossier versions at Erin Fetherston and Jason Wu. Luca Luca channeled Hollywood glamour for a deep strawberry shade, while the mouths at Ruffian were lined in ruby red. Maybe all the emphasis on lipstick has something to do with the good ol' Lipstick Theory — when the economy goes down, lipstick sales go up. And if that's the case, berry lipstick is what you can invest in for fall. So pucker up.