The below conversation was the result after we attended a couple of weddings lately and Isabelle asked about 'princess' (aka the bride) and weddings.
Isabelle: The princess at the wedding day is so pretty! I want to be like her.
Mummy: Yes, you will be, one day, when you grow up.
Isabelle: Like Snow White, Rapunzel princess? Are they like the princess during the wedding day?
Mummy: Errrmmm... yes but a little different. The princess during the wedding day is a bride.
Isabelle: Hah? Bride? She is a princess la!
Mummy: Yeah, a bride looks like a princess. When you grow up, you will marry a special boy and he will become your husband. Like Daddy & Mummy. And when you get married, that is like the princess like we saw on the wedding day.
Isabelle: Then where will the boy live?
Mummy: Then you and the boy, your husband, will live in a nice house.
Isabelle: Hah? What about you and Daddy?
Mummy: Daddy & Mummy will live here and you will come visit us.
Isabelle: Then I don't want to be the princess on the wedding day and I don't want to get married! I want to stay with you forever! (tears framing her eyes)