Lea: "Sure, but we'll wait for Caitlyn to be old enough to choose and until then we'll call her Caitlyn so she can get used to her full name"
Lea: "Sort of like how we call you Bianca"
Bianca: "Well, you can call me Bianca Butterfly"
And sure enough when I unpacked Bianca's school bag I came across her water bottle, her teacher marked it "Bianca Butterfly".
So people meet Bianca Butterfly...