It's no secret Kim Kardashian loves a good nude selfie so of course she's been keeping her waist in check so she can stunt on 'Gram to her heart's content. Yesterday (Feb. 12), Kimmy shared that her waist is a record 24 inches during a video from her book club that she posted on her app. "It’s never been 24 ever in my life," in the clip," said in the clip.

What do books have to do with waist size? Well, nothing. And frankly, we're not sure if we're more shocked about the star's insanely tiny waist line or the fact she runs a book club. We aren’t the only ones shocked by Kim’s hip-to-waist ratio.

Big sis Kourtney was so distracted she couldn't concentrate on the book discussion. "I can’t take your hips seriously right now," said the eldest Kardashian, "Because your waist is so small and your hips are so big." Word.

To put things into perspective, Kim also revealed to the book club ladies that also included her pal Chrissy Teigen and hair stylist Jen Atkin (yes, this book club business really is a thing), that she measures 39 inches around her hip.

Over the past two years, the reality star has diligently worked to shed the 70 pounds gained during her two pregnancies. And the results are nothing short of amazing. So how did she do it?

For starters, Kim undergoes grueling workouts with trainer Melissa Alcanatara six days a week. Her routine is targeted to building muscles all around, but especially in her legs. Anyone doing intense workouts should be proud of their progress. We see you, Mrs. Kar-snatched-ian!