Finally, someone is setting the record straight on Khloé Kardashian’s behind — and just as we suspected, no human being is capable of doing enough squats that could lead to that transformation!

So what’s to blame? Spanx! At least that’s what Andy Cohen says!

In his new memoir, The Andy Cohen Diaries: A Deep Look at a Shallow Year, he dishes on getting up-close and personal with Khloé’s booty at Jennifer Lopez's birthday party last June:

“Her ass — I don’t even know how to describe it. It was so bulbous and extended and shelf-like and badonkadonkulous. I asked her if her ass had always been like that or if I was looking at something different or what.

“She said she was wearing special Spanx that lift it. JLo said Spanx usually flatten your ass so these must be a new kind.”

Well, there you have it! Apparently Spanx is the secret to Khloé’s hard to believe booty transformation.

Do you believe that’s all to blame for the change? We put together pictures of her booty — on the left is last December, and the right is last week. Are you buying it?

khloe butt

Sound off in the comments!