You and Lily are best friends and together pretty much anytime,anywhere.Just like today. You've just been to Hogsmeade and are trudging through the deep snow that's currently lying. Then an idea occurs to you.You take some snow,forms it into a ball and throws it at Lily.She immediately turns to you with an angry face but can't help but laugh.

"You'll get that back!", she said and she threw you off.