Kourtney Kardashian Angry Magazine "Photoshopped" Her Post-Baby Body

Credit: Albert Michael/Startraksphoto.com

The skinny on OK!'s new Kourtney Kardashian cover: It's not her real post-baby bod!

The 30-year-old reality star -- who welcomed son Mason Dec. 13 with Scott Disick -- is alleging that the tabloid retouched her body so she appears thinner on the cover.

Despite the tabloid's claim to have an exclusive on her "body after baby," Kourtney also says she never spoke to OK! for the story, which quotes her as well as her friends and stepfather, Bruce Jenner.

"They doctored and Photoshopped my body to make it look like I have already lost all the weight, which I have not," she tells Women's Wear Daily.

Last week, Kourtney took to her Twitter page to set the record straight: "One of those weeklies got it wrong again ... they didn't have an exclusive with me. And I gained 40 pounds while pregs, not 26...But thanks!"

An OK! rep has declined comment.