"Etiquette," Sirius snorted. They were tempted to get the kids ice cream just to go against etiquette. But, they glanced at Teddy, Remus wouldn’t like it if they spoiled his appetite with sweets either. They needed to show him that they could be responsible if they wanted him to agree to buying a house with them. "Let’s have dinner first, and then we can see about ice cream, okay?" 