Cameras were rolling when Kourtney delivered her oldest children, Penelope, 4, and Mason, 6, and have also been there through her breakup with her longtime boyfriend and the father of her children, Scott Disick
. "I find co-parenting really easy," she shares. "Scott and I communicate all the time. You have to keep discussing what’s going on because as the children grow older, the rules need to be renegotiated. We make sure we go on days out together because the kids love it, but it’s really hard when you’re at the zoo and there are cameras in your face all day."