Sirius was on edge, and the twenty minutes he waited felt much longer. He'd almost written Regulus off as a no show, and even started to question whether maybe he was mad to even have believed it WAS Regulus, even if all his precautions had seemed to make it a certainty.
He tensed when he finally spotted Regulus, wand still drawn though he made no move to lift it or threaten Regulus with it. He studied his brother, noticing the differences, and the similarities.
He knew his brother though. This was him, if years later and a good deal different. "Here we are," he echoed. "Do I get to hear what's going on NOW, Reg?"