Let's play the guessing game? Who do you think will be the next Kardashian-Jenner sister to get pregnant? Kris Jenner put in her two cents during her sit down with popular host Ellen on her show recently. The 64 year old grandma of nine, said that she thinks the next grandchild will be from Kourtney or Kylie. Neither one of these sisters are married or even in serious relationships, but both have recently expressed that they want more children to add to the family.