Sister: "Mom, Baby Girl's crying again."
Mom: "I know sweetie, but at least it covers up the trickling sound of her wee-wee. Oh, honey, when you change her, remember-"
Sister: "I know Mom, check to see if baby's dickie is any softer. She isn't used to being my baby sister yet, is she? She'll learn, and so will her dickie, it'll just take time."