Me: Son, are you letting your brother write all over you?
Son #2: No
Me: Then why do you have NO! NO! NO! written across your shoulder?
Son #2: Because he was writing ON! ON! ON! and I didn’t know what he was trying to do.

Because that explains it all, right?

UPDATE:

Me: Did you draw you on your brother?
Son #1: No
Me: You’re telling me you didn’t draw on your brother?!
Son #1: Well…. I wrote No…..