You're never too old to play dress-up, and this new collection has everything a girly girl could ever want for a night out. NYC designer Katie Ermilio comes from a long line of clothes horses (her grandfather was Grace Kelly's personal dresser!), and she knows a thing or two about sophistication. Her newest line is oh-so-elegant, with just a touch of edge, featuring cocktail dresses and full-on gowns in gala-perfect colors (think lots of black and white!). And, she doesn't shy away from patterns, with striped frock after striped frock, and even a few mod pieces thrown in.While we're pretty sure every single dress would turn us from stepsister to Cinderella (no fairy godmother required!), there are a few that are especially lust-worthy. Take, for example, an ankle-length striped gown, a bright yellow maxi skirt, or a perfect pop-of-red trench. We've got the lookbook in its entirety, for your viewing pleasure, so skim through and start daydreaming of your perfect night.