Sarah Massey would be just another 33-year-old mother-of-two from Chicago — if it weren't for the fact that she also happens to have the world's biggest butt.

Though not officially recognized by the prudes at Guinness, Massey's massive 7-foot wide keister requires a pair of 10XL trousers that would komfortably fit all of the Kardashian sisters kombined.

Massey insists the condition that resulted in her museum-sized bubble butt is hereditary — "there's nothing I can do about it," she says — but that her love of ice cream certainly contributed to its maintenance.

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Though she grew up feeling ashamed of her dimensions, adulthood taught Massey that many men admire curvy girls.

She told Barcroft Media the discovery came about by accident: She had taken a few photos to document her weight loss, which a friend then uploaded to Facebook.

"They got so many likes that he asked if we could do some modelling pictures, then those pictures went viral," she recalled.

Massey would still like to lose some weight, but says she now has a new-found appreciation for her natural assets, and fervently defends them against anyone who calls them fake.

"Some people can't believe one person can have this much butt," she told Barcroft. "Because I've got a relatively small frame on top they say, 'that can't be real.' I carry this weight with me all the time, everywhere I go, it's definitely not fake. Big booties are just in my blood."

[H/T: Dlisted, video via Barcroft TV]