"Then why didn't you ask me? I've given you the perfect opportunity, not once, not twice, but plenty of times, and you brushed it off like it was nothing. I would have told you, no matter the risks, no matter Potter or the bloody Order. I would have told you." What was it about his brother that made him feel like a child again, saying things without thinking?
He shook hie head, pushing all of that aside. "I don't know. Severus wasn't too impressed, but I haven't worked with him. I honestly don't hold much hope. These are skills that we learn with time, and we actually want to develop them. Severus liked to the Dark Lord for decades. I did it for years. I doubt he's got the mental coldness necessary to keep things hidden."
Regulus nodded. "I wasn't insulting you. I was surprised that you'd go to such steps to tie him the the family." He grinned at Sirius. "The jacket wasn't so hard after Remus told me where I could find a wizarding store. Deciding what to put on the jacket was. I'm glad you like it."