When you're breaking pregnancy news to your kids, some elements ARE in your control. You can decide when to bring up the subject; you can decide how to word what you say; in the case of an edible announcement, you can even decide which flavor of cake to bake.
What you can't determine beforehand -- as parents-of-three Penny and James are not the first to find out -- is how the kiddos will react. In this particular case... half with over-the-moon enthusiasm, and half with the deepest despair.
Mom and dad told Ellen's Good News on Yahoo! Shine that the paper their two older children were reading from was a homemade Mad Lib (which presumably explains why the new baby is described as "hairy"), and said baby Brooklyn was born earlier this year.