Because sources say that Khloe Kardashian is not, you know, a Kardashian.
Ellen Kardashian, who was briefly married to Robert Kardashian, claims that he always doubted that Khloe was his biological daughter. He might have had reason to given that Kris said that cheated on Robert, and Ellen claims that Kris and Robert weren’t sleeping together when Khloe was conceived. To be fair, Khloe does look remarkably different than the other members of the Kardashian clan (remember when some publicist referred to them as a “klan?” That was a thing that happened). She’s often commented on the fact that she’s taller and has a different bone structure than her sisters. But sometimes siblings look different from one another! It happens! What do you think? Let’s speculate together.