Chapter 7: Depravity Unbound

Carlisle's grip on Isabella's hair loosened, his pace slowing as he gazed at Edward with a calculating intensity. Edward's smirk grew wider as he stepped closer, his eyes fixed on Isabella's cum-stained pussy. Carlisle's hands released their hold on Isabella's hair, and he stepped back, his movements economical as he moved to make room for Edward. Edward's eyes gleamed with excitement as he positioned himself behind Isabella. He reached out a hand, his fingers parting her folds as he guided his cock to her entrance. Isabella's eyes went wide, her body tensing in anticipation as Edward's cock breached her tight pussy. "Ah, little sister," Edward whispered, his voice husky with desire. "You're so tight. So perfect." Isabella's response was a scream of pleasure, her body arching into Edward's thrusts as he began to fuck her. "DADDY!" she screamed, her voice hoarse from her earlier cries. Carlisle moved to sit in the chair behind his desk, his eyes fixed on the scene before him as Edward continued to fuck Isabella. She was bent over the desk, her body trembling with each of Edward's thrusts. Carlisle's gaze was unblinking, his eyes drinking in the sight of Edward's cock moving in and out of Isabella's pussy. As Carlisle watched, a sly smile spread across his face. He seemed to be savoring the moment, his eyes gleaming with a twisted intensity. Isabella's screams grew louder, her voice hoarse from her earlier cries. "DADDY, DADDY, DADDY!" she begged, her body shuddering with pleasure. Just as it seemed like the scene couldn't get any more depraved, the door to the room creaked open. Rosalie Cullen stood in the doorway, a sly smile spreading across her face as she took in the scene before her. Her eyes landed on Carlisle, and she moved to stand before him, her hips swaying seductively as she began to bounce on his dick. Carlisle's eyes never left Edward and Isabella as he reached out a hand, his fingers tangling in Rosalie's hair. He pulled her closer, his mouth claiming hers in a fierce kiss. Rosalie's moans were muffled by Carlisle's mouth, her body moving up and down his cock with a frantic intensity. The room seemed to vibrate with their collective desire, the air thick with tension and lust. Isabella's screams grew louder, her voice hoarse from her earlier cries. Edward's thrusts grew more frenzied, his body moving in perfect sync with Rosalie's bouncing on Carlisle's cock. The scene was one of utter depravity, the four of them lost in their own twisted world of desire and lust. And as they continued to fuck and scream, their bodies seemed to become one, their twisted bond growing stronger with each passing moment.