There was a small noise that came out of Booker at the fist in his hair, half between a groan and objection. In a normal situation, his hair or clothing being messed up like that would have made him a bit angry, but instead, he ignored his normal reaction. Kit pulling away made him lean forward a bit, as if chasing the kiss, and was not disappointed as it returned, deeper and more.
His own fingers wrapping around the back of the older man's neck as he returned the kiss, making sure he didn't pull so far away again. He could taste the human's blood on Kit's tongue, the newer one to him. It was a taste that was almost intoxicating.