Kim Kardashian accidentally gets sister Kourtney's age WRONG in birthday card: 'My bad'

dailymail.co.uk:

Kim Kardashian got her sister Kourtney's age wrong while wishing her a happy birthday on Sunday.The reality star showed off the card she received from Kim, who wished her a happy 41st birthday - even though she was actually turning 42.'Happy 41st birthday,' Kim, 40, wrote in the card, before the mistake was pointed out to her by Kourtney. 'My bad': Kim Kardashian, 40, accidentally gets sister Kourtney Kardashian's age wrong in birthday card Shaving a year off: The reality star accidentally shaved a year off her eldest sister's life in her card as she wished her a 'happy 41st birthday''My bad,' Kim replied.In true Kim fashion, she presented Kourtney with a card that had her 'ugly' crying face on it with text that read: 'OMG YOU'RE SO OLD!'.