Growing up with a sibling is not always the easiest thing in the world. Sibling rivalries can start at a young age unless you nip them in the bud. However when they start right out of the womb it might be a bit tougher than you can handle. Given that I have one child I don’t yet have this issue so all I can suggest is when your kids start to fight…bribe them to stop. Sure it isn’t the best solution, but what do I know i am a new dad of a little boy . When I have another kid I will figure out the right way to handle it. Good luck to you parents of multiple children!