"No, that I can't," Remus chuckled. Regulus wasn't one for drastic change in a lot of things. But, he'd also shown he could be flexible about some things. The room they were standing in was proof enough of that, the muggle clothes... And, really, that traditional nature were part of what he loved about Regulus, part of what made him who he was.
Ducking his head and rubbing nervously at the back of his neck. "That obvious?" he asked with a sheepish smile. "I love him, as simple and as complicated as that. It might produce a pureblood child. But, it's the muggle way that he objects to, James. How does he teach a child the old ways the way he wants, and then explain the child was conceived using the new muggle methods he dislikes?"