It didn't surprise him that Remus and Dora had argued. To say that he'd be angry in the same situation was an extreme understatement. Sirius nodded, understanding how confused the other man must be about the whole thing. "I don't think you need to figure it out, Remus. It happened and that's that," he said with a light shrug. There was no point wishing the past hadn't happened, they needed to deal with it. They needed to figure out what to do about Teddy, in the same way that he needed to help James reconnect with Harry.
Sirius' eyes opened as Remus told him Teddy's full name. Sirius was a name that had been passed along the Black family through several generations, and he couldn't help laughing. His mother would have been horrified that his name had been passed to a less than half blood child with a werewolf for a father. Suddenly he couldn't stop laughing, at yet another victory and at how foolish he had been over the entire thing.
"I'm glad you were thinking of me whilst you were knocking up my cousin," Sirius said with a wink, though his tone wasn't bitter and he laughed a little more.