The brink of madness and obsession? He had lived there all his unnatural life, and a few of his suspected selves had gone there long before that. He felt the rage rush through her veins as the desire had rushed through his. Jack was never one for rules, so he never thought on if there would be any. She pulled a knife, so he used his, easy action-reaction. He didn't think of it as marking, only marring for the period of the game.
The knee to his groin collapsed him to his knees, he could heal quickly, but that didn't mean it didn't hurt. As her fist slammed against his face a loud crack echoed just around them. The fog around them swallowed them whole with no way of seeing through it. Jack melded into it becoming fog himself to protect him from the danger of her strength. A ghostly laugh came out of the fog; his jaw realigning as the cracked bone turned into a gas form and then back into a solid form beside her.
"As I said it's how it's used, mum. You don't mind me calling you mum do you? Since youcreated me."