A low growl came from deep in his throat, and whatever measure of temper that had receded was roaring once more and he stalked forward towards Pierce. "Don't you fucking call me that," he hissed at him, his own hands clutched into fists at his side. "You have no fucking right to use that name. And if you call me that again, I swear to god I will make you pay." He was almost nose to nose with the other man, his gaze dark.
"And you can't tell me to leave. I'm her family. Not. You. So how about you bug the fuck off and leave us both alone. Hmm?"