"You can't tell me who you're with?" Lily smiles at him hopefully. Sirius laughs. "Alright Evans, if you're so curious, I have a proposition for you" "We'll set up a little bet, you have until the end of the school year - so two months - to work out who I'm dating, or..." he pauses to think and with an evil smirk decides, "or you have to ask your crush out on a date."