<p>Don't know about the name but the surname is enough. The oldest of the Kardashian sisters, Kourtney Kardashian, turned 39 on April 18. The mother of three children however doesn't seem to have aged a day. On her birthday, here are some pictures to prove that she surely has some magic potion to pause her age. Can you please tell us you secret Kourt?</p> (Photo credits: Instagram)
