In the frenzy of his desire to have her, and excited by her caresses, Jacques, having no other weapon, was already stretching out his fingers to strangle Severine when she herself, from habit, turned and put out the lamp. Then he took her, and they lay together. It was one of their most passionate nights of love, and best of all, the only time when they had felt completely merged together, completely obliterated each in the other.
— Émile Zola, La Bête humaine (1890), ch. 11