"Exactly little brother, you get it," Sirius quipped. He fought the urge to remind Harry to be a good boy for Cas, that would be Cas’ job now then he left Harry with them. He quickly grabbed a handful of Floo powder before he tried to talk sense into Cas, tried to insist the kid let him remain Harry and Jenny’s guardian. He had a claim on Harry at least, he was his Godfather and just by virtue of being twenty-three years old and not being a fresh graduate of Hogwarts, he could make a fair argument for being a better guardian for his Godson. He wouldn’t do that though, not to Cas, and not to Harry either. He Flooed home before he tried to shake some sense into his little brother or tried to order him back to his place.