Sirius smiled at his brother fondly, memories of late nights spent sneaking into each others rooms. How many times had Regulus wiped his tears after their mother punished him? How many times had he snuck in with food or books when Sirius was supposed to be locked up? They had been so close once. Somehow they'd let pride get in their way. Well, not anymore. Sirius knew what it felt like to lose his family, and he was never doing that again.
"Doing the right thing isn't a Gryffindor trait. It's a good person trait. That's not something that sees house or blood."
He shifted so he could sling an arm around his brother's shoulder, breaking the embrace but keeping the contact.