From Inside the Grey House:
He closed his eyes and nuzzled her hair with his nose, smelling the fruity scent of her shampoo. As her fire penetrated his chill an ugly worm of a notion crawled into his mind and started wriggling around his psyche, threatening his pleasure filled thoughts. He gathered her closer, wanting to drink her heat and bring her the eternal cold of his kind. It would be sinfully easy. The sleeping human would feel nothing, probably wouldn’t wake until he was feeding her his own blood. And then it would be too late to abort.