Jack had told her this would be her only shot at a fight with him, where she probably wouldn't die as a result of it, so she took full advantage of it, bringing her claws out as proof and a way to see him bleed.
She smiled satisfactorily as she saw the marks on his face bleed before healing. She should have guessed he'd catch her leg, but that was why she typically had a backup move to counter. It involved her twisting her body to bring up the standing leg for a swift kick, but Jack moved before she could manage it.
Her hands reached around her for something, anything. Mac didn't hold back a moan when she felt the fangs back in her throat. She didn't resist the shirt coming off especially since it wasn't one she wanted to be fighting in, in the first place. Her skin was heated from the fight, and her pulse was fast. However, just because Jack's actions felt pleasurable to her didn't mean she'd given up yet.
Finding the knife block behind her, she figured it would be the political thing to warn him before bringing weapons into the mix. "You're not opposed to a little knife play, are you?" She asked, pulling a serrated knife out from the block.
"Not that you strike me as a man who is, I just thought I'd be polite." That was her only warning before lashing out at him with the knife. Not to his throat, no, she didn't want to kill him. But she did want to see him bleed some more. So she slashed his chest.