His mind seemed to go blank, as the animalistic side of Jace took over. His thrusts became harder and faster, as he continued to drain Emily. He didn't notice it at first, but as his thirst ebbed, he started to notice how different she tasted. He pulled back and then pricked his finger, trying to clear the taste out of his mouth. When he tasted himself, he realized what had happened. She had become one of his kind. His mind snapped back and he looked down at her. "You don't have to worry about time any longer," he said softly, worried about how she'd take the news.