12/30/2014 09:36 EST | Updated 12/30/2014 09:59 EST

Kim Kardashian Reveals Why She Doesn't Smile In Photos

So that's why Kim Kardashian always seems so grim in photos!

The reality TV star is famous for refusing to crack a smile on the red carpet, but now we finally know why. (Hint: it's totally on purpose.)

On Monday, Kanye West's other half posted a pic of herself and a guy pal on Instagram sharing a laugh.

Kim captioned the pic, "See I do smile... even laugh on occasion. Not too often though because it causes wrinkles @shammaurice."

While we can't prove the validity of Kim's claim, we do know that the Vogue cover girl looks even more gorgeous when she has a big smile on her face.

The 34-year-old mom isn't the only celebrity who's famous for favouring a pout. Victoria Beckham is notorious for maintaining a scowl whenever she's photographed, whether it be on or off the red carpet. "I actually used to smile a lot in pictures," the former Spice Girl told Glamour magazine in 2012. "I think I only stopped smiling when I got into fashion. Fashion stole my smile! I've created this person. And I'm not saying that's not me, but I wouldn't say that's the whole me … It's an armour that goes up."

Although we would like to see these gorgeous gals smile a bit more, we wouldn't change them for anything.

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