This Is Why Kim Kardashian Rarely Smiles

The 34 year old reality star and mother of one is rarely seen showing off her teeth and Kim has a simple reason why she’s often never smiling or laughing which is wrinkles.

Yes you read that right, wrinkles. Kim disclosed this in a tweet Monday along with a candid black and white photo from her family’s Christmas party of her and friend Shamari Maurice laughing it up and enjoying each other’s company.

The reality star has had quite a busy year, from her wedding to Kanye West in May to landing on the cover of Vogue Magazine to “breaking the Internet” with her nude photos on Paper Magazine cover and been the most searched person of 2014.