"So the first thing he said to you after six years wasn't, hey I'm alive, let's talk, but give me money?" He could definitely understand how that would have rubbed Sirius wrong. It was the move of an arrogant toe-rag; James really couldn't call Regulus that enough, even if it was in his own head. "That deserves another shot, Pads."
He poured them each one, and threw his back, then poured another. He was going to have trouble getting home after this, but he could always send Lily a message that he was kipping at the pub. It had happened once or twice in the recent past, though he didn't make a habit of it. He liked being home with his family, checking on the boys and snuggled up to his wife. But sometimes, you had to look after your brother, and Lily would understand.
"We should hex his head to match the size of his ego," James said, but wasn't serious. He didn't want to actively work against the reconciliation of the Black brothers, and Regulus had never appreciated a good prank.