With the recent birth of Kim Kardashian's third baby, Chicago West, and Kylie Jenner's baby girl Stormi, the Kardashian-Jenner family now counts eight little ones in their youngest generation. Kourtney Kardashian, the eldest Kardashian sister, was the first in the family to become a mom, giving birth to Mason Dash Disick in December 2009.
Kourtney's family now consists of three beautiful little ones. Her oldest son, Mason, has two siblings: Penelope Scotland Disick, age 5, and Reign Aston Disick, who is 3. Mason and Reign even share a birthday: Dec. 14! Kourtney's ex-boyfriend, Scott Disick, is the father of all three children. The couple dated for 10 years and now coparent like pros, often taking family trips with their children.