A sound tore out of his throat, somewhere between a groan and a growl.
Remus was really going to try to use that one on him? Sirius could tolerate the self-depreciation at times, mostly when Remus was making a joke of it, but he wasn't going to listen to it now.
"Shouldn't I be the judge of that?" Sirius countered. "No. That's not good enough for me. You can't even look me in the eye and say it because it's not true. It's a piss poor excuse because only you think I deserve better and that's codswallop. I probably don't deserve you at all."