Mitch yelps, jerking back when J bites him. Suspects for a few painful heartbeats that he's been betrayed, that J's mood has turned again. But then the blond licks at his lips and he realises the intent behind the bite. He laughs under his breath, then moves back to kiss him again, slow and sweet and then, after a moment, biting back, sinking his teeth into J's lower lip.

His lips start to curve in a smile -- see? two can play that game -- but then J is leaving pink-red scratches up his back, sweet little lines of pain, and instead of smiling at his own cleverness he's moaning into J's mouth, trying to arch his back and grind against him, both at once, and not getting near enough of either. He wants more.

He shifts his weight so that he's held up just by the hand holding the knife (less 'holding,' now, admittedly, than 'hand resting on top of'), and moves the other one down J's side, fingernails trailing.