The press of claws caused Ash to make a small sound - not one of fear but one of want. He shouldn't have wanted to feel them, wanted more of the danger but he did. Christ, he did. Feeling like if he moved just wrong he might end up on the wrong end of those claws appealed to him in ways he couldn't explain, even if he knew Rook wouldn't do that on purpose or would feel apologetic about it.
They needed to stop desperately. One of them was going to have to be well-behaved at some point. Ash forced it to be him, pulling out of the kiss but not away. "We have to stop," his usual quiet tone was even more of a whisper now, dangerous in just how audible his craving for more was. "I-I should go back to my Haven."