Narcissa's breathing was already wavering at the sight of the dark witch's hungry eyes eyeing her up like her next meal. She hated that Bellatrix could get her from angry to a lustful mess like this in seconds but she yearned for it. Since they were young this was what they did. They survived through each others passion and heated sex. Pure sin. Something unspeakable, unnatural, toxic and dark. No one could ever love her like Bellatrix, hate her like Bellatrix, fuck her like Bellatrix, hurt her like Bellatrix. She was completely enslaved to her sisters every word. She knew the sickness. She felt it constantly, but no one would ever equally gain her love like Bellatrix would. Everything about this woman was toxic and addictive. This situation was no different.