Kim Kardashian knew she wanted to show off a tinier waist in Fergie's racy "M.I.L.F.$" music video — so she brought a corset along. On Wednesday, July 6, the Keeping Up With the Kardashians star slammed rumors (again!) that she turned to Photoshop.

"I'm wearing latex shorts with a corset built into the back that cinches-in my waist to be CRAZY tiny. B. Akerlund, the stylist, did an amazing job. The custom-made shorts look like denim cutoffs! My waist looked so tiny that my hips look extra big. She's a genius stylist!" Kardashian, 35, wrote on her app. "It's called 'styling,' not 'photoshop'—LOL!"

The mom of two filmed the music video with fellow Hollywood moms Alessandra Ambrosio, Ciara and Chrissy Teigen. In it, she stripped down to lingerie and took a milk shower. "Even Chrissy came to my trailer and was dying at how tiny this corset made my waist," Kardashian added.

Kardashian has been defending her slimmer frame all week. On Monday, she shared photos from set on her Snapchat and captioned them: "F--kYoPhotoShop #CorsetLife M.I.L.F.$." Since then, she's continued to post stills from "M.I.L.F.$" on her Twitter and Instagram accounts.

"Got Milf? @Fergie #MilfMoney," she tweeted on July 1. "So fun being in my girl @fergie's video for Milf Money! Everyone go watch it!"

Those still skeptical will soon see the music video from a whole new angle. Kardashian noted on Wednesday that a behind-the-scenes look at Fergie's video will be shown on an upcoming episode of KUWTK.

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