"You're not disturbing me," he answered just as simply and rose from the sofa, feeling that it was wrong to let Regulus be so uptight when he was so close to falling asleep on the broken-down sofa. "You can come in, you know. You live here too."
He couldn't see Regulus' forearm, but he suspected that if he could, he wouldn't like what he saw. Leave it to him to be forced to live with a Death Eater and a Death Eater's grandson. He supposed he deserved no better; Sirius was living with Harry and a Weasley, after all. Something had to account for that sort of difference.