You and Arthur have always been rivals, and always will be. Everybody at your school knows about this, and they all try to stay out of the way when you and Arthur are fighting. It's one night when most of the grade is having a party in someone's dorm, when they notice that Arthur has a purple tongue? "Yo, why do you have a purple tongue?" One of his friends asks. "You have a blue soda..?" Arthur glances over to you, and his eyes flicker down to the red soda you're holding in your hand. He smirks. They don't know what you guys did before. Good. "I just had some strawberry sherbet." Arthur eventually answers his friend.