Ultimate Swimsuit Challenge

Because Tabitha is more of a pear shape, with a slightly larger waist than her bust, Shatonia suggests she buy a bikini bottom one size larger than her top. "It's totally okay to buy separates," she says. "That way, you can really fit your body type best."

2 Bamboo "Twist of Fate" Braided Bikini Top, $63, lordandtaylor.com

2 Bamboo "Twist of Fate" Braided Hipster Bottoms, $45, lordandtaylor.com

"Ivana is a taller girl with a rectangular shape; this means means not much definition," Shatonia says. "So, we gave her suit with a bra that has an underwire to give her support."

Shatonia's tip for women with heavier breasts: Buy a swimsuit that offers full coverage, even if it's more expensive. "Usually, a more expensive suit has the material and support you need to give you coverage in certain areas and control in others — it's definitely an investment."

Ivana's suit is a MiracleSuit, which has girdle-like boning in the sides and stomach to help her look slim and firm. "It truly does work miracles," Shatonia says. "It's supposed to give you the illusion of being 10 pounds lighter! This suit also has all that beautiful ruching and drapery, which gives her an hourglass look with curves and a silhouette. It also lifts her breasts and butt, and tightens and smoothes everything out — no rolls!"

MiracleSuit "Oceanus" Cross-Over One-Piece Swimsuit, $126, lordandtaylor.com

Michelle is long and tall; to give her a look with more shape, Shatonia gave her a bikini top with a high-waisted bikini bottom. "This is a great style, because it proves you don't have to rely on a one-piece to give support," she says.

These bottoms are made by Spanx, so they give her some lift in the rear, plus control in the front, and the ruching on the sides lets her show more leg. "It really gives her a leaner shape," Shatonia says. "This style also accents her waist and make her look curvier."

2 Bamboo "Twist of Fate" Braided Halter Bikini Top, $75, lordandtaylor.com

Spanx Full Coverage Bikini Bottom, $78, spanx.com

Rachel is petite, but she's also an extreme hourglass; her waist is much smaller than her bust and her hips, so we went for a suit that would highlight her figure and emphasize her waist. "The drapery and flouncelike detailing is gorgeous and classic, and draws the eye to her tiny waist," Shatonia says.

"She's slightly on the plus size, too," Shatonia notes, "so this is a great suit for her because it gives her breasts support with the underwire, and the girdle material smoothes out problem areas."

MiracleSuit "Camilla" Ruffled Bandeau One-Piece Swimsuit, $142, lordandtaylor.com

Like Michelle, Heather has a boy-shape, and like Rachel, she's also quite petite. This string bikini ties on her hips to bring attention to her curves there, and the shading of the top brings attention to her bust.

"She could also do a bottom with a little skirt or ruffle, or a suit with an animal or floral print," Shatonia says, "to make her look curvier."

Ralph Lauren "Ombre Dunk Dye" Halter Bikini Top, $60, lordandtaylor.com

Ralph Lauren "Ombre Dunk Dye" Beaded Hipster Bikini Bottoms, $67, lordandtaylor.com