Kim Kardashian is now facing rumors that her butt selfie photo was fake. 

According to photo experts who spoke to Radar Online Tuesday, the 33-year-old Keeping Up With The Kardashians reality star is rumored to have altered the Instagram pictures with friend, Blac Chyna using Photoshop. 

"Based on what I've seen, I'd have to say these photos were manipulated," photo production expert Devon Talbert said. "I did ask myself why Kim would go through all the trouble of importing her photo to photoshop to tweak it and then repost it as an Instagram," he said. "But then again, there are so many photo phone apps that I guess you're only a few swipes and pinch away from the perfect body [at all times]!"

Kardashian has previously credited her amazing 43-pound weight loss with the Atkins diet, telling People magazine's Nov.4 issue that the journey was far from easy.

"This was the biggest challenge of my life, and I still have some to go, but I feel so accomplished that I did this," she said.

She even took to Twitter to address reports that her post-baby body was fake. 

"I worked so hard to train myself to eat right & healthy, I worked out so hard & this was such a challenge for me but I did it!!! I'm so proud of my accomplishment & NO ONE will take this away from me with fake reports! Say what you want about me but I work hard and am the most disciplined person u will ever meet!" she tweeted in November.

Tags: Kim Kardashian