Rick and Lily celebrate their engagement. Tiffany reveals to Grace that she's pregnant, but Grace pretty much had that figured out when she heard Tiffany throwing up in the bathroom. Lily and Rick tell their kids about the engagement, and Rick and his kids moving into Lily's house. Lily finds out Tiffany is pregnant. When Rick tells Karen about his engagement and move, she seems less than thrilled. When the rooming arrangements are discussed, not everyone is happy with the decisions. Disagreements about where to put things come up also. Rick and Jake put a hole in the wall for a possible bay window, Lily gets upset at Rick for "making all of the decisions," assuming she'll just go along with them. A family meeting at the end of the episode resolves a few issues.