**Chapter 4: Descent into Darkness**

Viper's eyes locked onto Sage's, the air thick with tension as she struggled to process the emotions swirling inside her. The lab around them seemed to fade away, leaving only the two of them, suspended in a moment of raw vulnerability. Sage's gaze never wavered, and Viper felt a shiver run down her spine as she saw something there, something that looked almost like... acceptance. Without a word, Viper flipped Sage around, her hands moving with a swift, economical motion. Sage's body hit the desk with a soft thud, and Viper's eyes flashed with a dark intensity as she loomed over her. The fluorescent lights above seemed to flicker, casting eerie shadows on the walls as Viper's breathing grew ragged. Sage's face was pressed into the desk, her body trembling slightly as Viper's hands began to move over her, unbuttoning her shirt, unzipping her pants. The sound of fabric tearing, the rustle of clothes falling to the floor, seemed to echo through the lab like a death knell. Viper's body seemed to move of its own accord, driven by a dark, primal force that she couldn't quite control. She felt a twisted sense of excitement, a thrill of power that coursed through her veins like a drug. Sage's body was pale, vulnerable, and Viper's eyes seemed to drink in the sight of her, her mind consumed by a dark, primal hunger. As Viper's body moved over Sage's, the sound of their ragged breathing, the creak of the desk, seemed to fill the lab. The world around them seemed to narrow, leaving only the two of them, lost in a moment of raw, brutal intimacy. Viper's eyes flashed with a dark intensity, her body moving with a swift, economical motion, driven by a force that seemed beyond her control. The lab around them seemed to fade away, leaving only the two of them, suspended in a moment of raw, brutal intimacy. The sound of their breathing seemed to echo through the room, a stark reminder of what was happening, of what Viper was doing. And yet, even as her body moved, driven by a dark, primal force, Viper couldn't shake the feeling that she was losing herself, that she was slipping further and further into a darkness from which she might never return.