Hold the shit on a moment you mean they're the same family? I've always thought that they were just coincidentally named similarly.
And the Kardashians and Jenners are related?
Kim, Kourtney, Khloe, Kylie, Kendall and Rob share the same mum (Kris Jenner). Bruce/Caitlin Jenner is Kylie and Kendall's Dad. Robert Kardashian is Kim, Kourtney, Khloe and Rob's Dad.
And the Kardashians and Jenners are related?