Did you know that Marilyn Monroe's famously heavy lashes were part illusion? Sure, her makeup artist, Whitey, layered on the mascara, but he also drew a faint grey line at the corners of her eyes to make it appear as if her lashes had their own shadow! Though it might take some practice, you can do the same thing with your lips.
Wren said to use an ash-tone brow pencil around your lips to create the shadow of a fuller lip. It should fall just under the heaviest part of your bottom lip, and around the indentations of your cupid's bow.
Another option? A touch of bronzer! "Contour slightly with a bronzer beneath the center of your bottom lip using a small brush," advised Kyriaki Savrani, celebrity and editorial makeup artist. We like NYX's Matte Bronzer ($9) for its affordability and easy-to-use formulation.