I co-slept with all of my kids .17,13,9 and now our 18 month old sleeps with us. It was a lttile hard getting the older kids out of our bed over the years but they got use to sleeping in their own bed. Our 18 month old is sleeping with us now and it has nothing to do with being selfish. Kids like to cuddle and they feel more comfortable laying next to their parents (some do, some don't). I see nothing wrong with Kourtney doing this as there are millions of parents doing the same thing, what makes her different than anybody else? Nothing, she's just normal.