Sirius blinked at the smile, and then echoed it, slow and uncertain, but genuine. "Some things never change, I guess."
"Yes," Sirius answered simply, shrugging. "You might have run off, but that doesn't mean you weren't looking back. You're not that stupid." He cocked his head. "I might believe it. Not as why you came back, but it's not like I didn't miss you, even if you were a poisonous little tosser, most of the time. You weren't always like that."
"Why not? Worried I'll turn it over to Him? You want me to believe you, then that's how you can prove it. Give it to me, so I can give it to Harry."