Move Over, Jennifer Lopez- This 34-Year-Old Woman Has the Best Butt in America

Jean makers say Natasha Wagner has the most perfect behind in America.

She told INSIDE EDITION: “I feel very flattered that anyone would say that I have a perfect butt.”

Wagner is the most sought-after fit model for the world's most popular denim brands. Designers check how their jeans look and feel on her before they hit store shelves. Designers say her bottom is not too big, it's not too small, and it’s just perfect.

Read: 'The Queen of Jeans' Chaging the Denim Industry

“Natasha’s curves are in all the right place,” said one designer.

The 34-year-old from Los Angeles is size six, has a 28 inch waist and stands 5’8.”

Jean makers like Jennifer DeClark of the 7ForAllManKind brand said she uses Wagner’s rear measurements as a secret weapon to creating the perfect fit.

"She has mil- long legs, she's thin but curvy at the same time, and her hip-to-waist ratio is perfectly proportioned,” said DeClark.

Wagner said it's not easy to stay the same size and shape.

She said: “My job is try on jeans and stay the same size.”

To achieve her perfect derriere-- she sweats through 100 squats a day. She also spends 45 minutes on the treadmill and elliptical machine. She eats only healthy treats, like a strawberry and kale smoothie.

Read: Fit Mom Reveals Bulimic Past

Aside from have the perfect posterior, she is rewarded with a closet filled with jeans to show off the best butt in America.

“This is what you get for being the number-one fit model,” she said.

Watch Below: This Fit Couple Spends $50,000 A Year to Look This Good