Strategic Dressing

Black and White

After: Strong black bands on this floor-length dress (Naeem Khan) define a smaller waist and create a slenderizing head-to-toe line; Rebecca's new, lusher bust—a perk of nursing—benefits from a discreetly plunging neckline.

"The way it plays up my cleavage makes me feel very feminine," Rebecca says. "It's a shift in perspective: My breasts aren't just working breasts; they're also fun, party breasts." Shoes, Christian Lacroix.