" Except Allyson doesn't know about Saba (yet) or about kishkes (officially speaking, though she knows what they are and how to listen to them and she will never ever stop doing this). And she doesn't have the words to tell Willem what she needs to tell him.
So she doesn't use words. She licks her thumb and rubs it against he wrist.
Stained.
Willem grabs her wrist, rubs his own thumb against it. Does the same to his own wrist, just to make it clear.
Stained. "

― Gayle Forman , Just One Night (Just One Day, #2.5)