Kimberly is about to re-enter the dating scene, but she's got one "brief" problem holding her back -- her outdated underwear look. "The first time a guy sees me in my underwear," she says, "I want to look good. I want to feel sexy and confident, instead of the guy wondering, 'What age did she get those underwear from?'" Gretta brings Kimberly to Victoria's Secret to exchange her granny panties for a confidence-building look.

Gretta shares her number one tip to help Kimberly with her underwear situation: "She's petite, but the full brief granny panty adds so much more material and it's cotton so it bunches up underneath her clothes. It doesn't work -- it actually adds more length and width to her body." But Gretta warns against going to the opposite extreme -- the thong. "You don't want to go with too much fabric or too little."

Click on the gallery to the right to see which styles Gretta recommends for different body types, and take a peek at what she picked out for Kimberly!

Web Exclusive! Gretta shows you more sexy outfits to spice up your underwear drawer!