The lip kit maven partied with her sister,
Kendall Jenner, and Scott Disick, at a private 1OAK and Up&Down pop-up féte on Friday, proving there's no bad blood between her and big sis Kourtney Kardashian's ex
. (Then again, Scott is
in a bromance with Tyga
, and who wants to hate their boyfriend's
BFF?) Find out more about their desert family bonding in the video below.