Kim Kardashian says she doesn’t laugh too often because it “causes wrinkles”.
The reality star is rarely seen looking anything but stony-faced as she is photographed out and about on a daily basis.
But now the mother-of-one has opened up about why she prefers to maintain a somber expression.
Posting a shot of herself looking happy and grinning on her Instagram page, Kim wrote: “See I do smile... even laugh on occasion. Not too often though because it causes wrinkles.”
The shot, of Kim and close friend Shamari Maurice, was taken at her mother Kris Jenner’s holiday party.
It was previously claimed Kim, Kanye and their child North West would miss the annual bash because they would instead be in Paris, France.
However, a new report has alleged Kim and her sister Kourtney were actually obliged to attend the party due to a contract.
“They had to show up at that party,” a source told. “They are under contract and part of their job obligations include fulfilling their job duties.”
Kim previously revealed she has taught her daughter North not to smile when paparazzi is around.
Sharing a shot of herself and North looking stern, Kim quickly followed it with a picture of the duo laughing.
She captioned the first picture “What we’re like in front of the paparazzi”, and the second, “What we’re like at home”.