Most of Lily's family were Gryffindors, including James. Rose was the only Ravenclaw still at Hogwarts, since Teddy and Victoire had graduated, but Lily didn't want to be a Ravenclaw—that stupid door knocker! Dominique, a Hufflepuff, just graduated. Lily looked jaundiced in yellow, anyway. Al was the sole Slytherin of the family. Lily always thought she would share a house with her big brothers—she never thought choosing a house would mean choosing between them. She wasn't sure she wanted to do that.
As Lily approached The Hat, she had no clue.
Lily would wear lots of black.