News: Kim Kardashian reveals why she doesn't laugh! Seriously Mrs West???

Mrs Kanye West is hardly snapped with a smile on her face, frequently getting called out for her apathetic expressions.

But on Monday, Kim Kardashian-West jokingly came to her own defense.

'See I do smile... even laugh on occasion. Not too often though because it causes wrinkles @shammaurice,' the 34-year-old wife of Kanye West quipped on Twitter.

Along with the tweet was a split image - the top shot showing the Keeping Up With The Kardashians star seemingly caught mid-chuckle alongside her male friend Sham.

See I do smile... even laugh on occasion. Not too often though because it causes wrinkles @shammaurice pic.twitter.com/Crct4LfVL7
— Kim Kardashian West (@KimKardashian) December 29, 2014