From PEOPLE Magazine Click to enlarge
CENDRINE ROBINSON

179 LBS.

Wants to lose

40 LBS.

by her wedding on Oct. 10

CRYSTAL JONES

231 lbs.

Wants to lose

50 LBS.

by her wedding on Oct. 23

STEPHANIE CERRETA

170 LBS.

Wants to lose

50 LBS.

by her wedding on Oct. 10

JUWANA HILL

184 LBS.

Wants to lose

45 LBS.

by her wedding on Oct. 10

PATTY QUINTERO

200 LBS.

Wants to lose

50 LBS.

by her wedding in the fall

SHERRY COUNCELL

164 LBS.

Wants to lose

40 LBS.

by her wedding in the fall

CRYSTAL JONES

FIANCE Jeffrey Vaughn

LOCATION Chicago

231 LBS.

At Charles D. Owen High School in Black Mountain, N.C., Jones ruled as captain of the cheerleading squad. But as an undergrad at the University of North Carolina-Charlotte, the 5'1" interior designer gained "the freshman 20," she says—and then another 60 lbs. while finishing her degree in Chicago. "It was like I didn't see [the weight gain]," says Jones, 26, who explains that her studies and a full-time job meant "I had no time to work out." She and her fiancé, 26, a collegiate scout, also rely on meals they can "pick up on the way home from work," she says, like pizza and fast food. Eager to "be healthier," Jones adds, "I'd want to lose weight whether I was getting married or not." But the thought of standing before 150 guests at the Biltmore Estate in Asheville, N.C., on her wedding day is "an extra motivating factor," she admits. "I want to enjoy taking pictures—not running from the camera!"

CENDRINE ROBINSON

FIANCE Omari Head

LOCATION Washington, D.C.

179 LBS.

The neuropsychology student, 24, is not only excited to say "I do," she's equally eager to get rid of her nickname among pals: "Snacks"—a moniker she earned because "I prefer to eat cheese and chips rather than real food," says the 5'6" bride-to-be. In general, "I eat when I'm not hungry and for no reason," she says. Now she has a big reason to change her habits: When she exchanges vows with Head, 25, in October, "I want my dress," she says, "to be very fitted."

SHERRY COUNCELL

FIANCE Kyle Thomas

LOCATION Spring, Texas

164 LBS.

When Councell, 35, tried on wedding dresses for the first time, she was shocked to find out she was a size 16. "I'll get married in a blanket before I buy a size-16 gown!" says the 5' bride, a customer coordinator who met her fiancé, 37, online in 2005. For her Renaissance-themed wedding in Plantersville, Texas, Councell wants "a smaller waist and toned arms." But most of all, "I want the look on Kyle's face to be complete shock."

JUWANA HILL

FIANCE John Montgomery

LOCATION Union, N.J.

184 LBS.

Two years after giving birth to twin boys with longtime boyfriend Montgomery, 41, Hill had lost nearly all 103 lbs. she gained during her pregnancy. Then in 2005 she discovered she was expecting again—and put 77 lbs. back on. Now the 5'3" accountant, 41, says she has "horrifying" 44-inch hips because "I just got caught up in being a mom. I couldn't find the time to work out." An admitted "emotional eater," Hill's first instinct is to reach for a bag of cookies when she gets stressed. And though she follows a vegan diet, "regardless of whether it's a vegan cookie or not, it's got calories!" she says. Hill hopes to show off a new "hourglass" shape when she finally ties the knot in Newark, N.J.—much to the delight of her sons Keoni and Kenji, 6, and Gihan, 3. "My son said to John, 'Are you ever going to marry Mommy?'" she says. "They're very excited!"

PATTY QUINTERO

FIANCE Raymond Otero

LOCATION Anaheim, Calif.

200 LBS.

Ever since she got engaged last October, one thought has consistently run through Quintero's head: Oh my gosh—I'm going to be a fat bride! Along with bad eating habits ("I fry vegetables in butter"), the 5'1" nonprofit- events organizer, 31, says she feels intimidated about going to her local fitness center because of her size. "Being able to go to the gym and not be embarrassed, that's a goal of mine," she admits. Another goal? By the time Otero, a 29-year-old chemical mixer, is allowed to kiss the bride at their fall ceremony (the couple have yet to set a date or location), Quintero hopes "I'll feel confident," she says. "The whole point of this challenge is so on this special day I can feel great about myself."

STEPHANIE CERRETA

FIANCE Roger Sullivan

LOCATION Houston, Texas

When her high school sweetheart proposed in 2008, Cerrata, 26, was ecstatic—until she saw their engagement photos. "I was like 'Put them away!'" she says. A self-diagnosed "sugar addict," the 5' administrative assistant admits, "At this weight I don't have confidence. If I was walking down the aisle now, I'd be self-conscious." But by the end of this challenge, when she meets Sullivan, 27, at the altar, "I'd love to be in the moment, not thinking about my weight."