"Smiling Causes Wrinkles" - Kim Kardashian Reveals

On Monday she took to twitter to shares a picture of herself smiling and jokingly defend herself after frequent called out to her to smile.

'See I do smile... even laugh on occasion. Not too often though because it causes wrinkles @shammaurice,' she tweeted.

The 34-year-old year reality star  tweeted a picture of herself grinning while admitting she doesn't do it 'too often though because it causes wrinkles' she admits due to fear of aging.

Along with the tweet was a split image - the top shot showing Mrs. West seemingly caught mid-chuckle alongside her male friend.

So the next time you see the West family in a picture with a straight face don’t get too worry they just trying to avoid wrinkles and stay fresh.