Emily becomes a true Worm

"Keep going Emily, more! Lose yourself to this, let these feelings consume you!"

"Yes Master!" Emily screamed as she railed Amanda even harder, plunging her Master into the cackling Broodmother on her hands and knees in front of her. Amanda's worms hung from her tits, having latched on while their mother was distracted. They had grown fat, and were beginning to glow the same sickly green colour of Emily's eyes.

"Emily, would you mind joining us for a minute?" Emily heard Carly's voice, but could barely focus on where it came from. She was lost in fucking, pleasing her new Master. Eventually, she regained clarity, though she didn't stop fucking the curvaceous demon beneath her.

"Umm I guess. Can it wait?"

"Trust me, you'll want this. I believe your new 'Master' will as well."

"You can trust her Emily. Go."

Emily pulled out of Amanda, who let out a grunt of indignation. She followed Carly and Jenny to the other side of the car, her Master slithering back inside her. The sight of her boyfriend brought a torrent of mixed emotions. The guilt hit her like a wave, and she nearly cried, seeing him vacant and half dead. But then she saw the cum, the evidence of the grotesque version of sex that he had been a part of. A tsunami of lust nearly drowned her then, and she mounted him and began to fuck as hard and fast as she could.

"He was so good to you, Emily. Allow him to serve you as best he can, one last time. Allow him to serve me."

"Yes Master, always! Yes!"

The angelic blonde wore a face of pure bliss. But her smile was too big. Too wide. Her lecherous leer grew, as she fed the worm inside her, giving it so many of her human emotions, and receiving only molten lust in return. Emily remembered when Carly impaled her, remembered the euphoria of such a perverse invasion, but also the guilt, shame, and helplessness. She remembered when Carly gave her the choice. The only reason she had hesitated was now limp beneath her, and was ejaculating torrents of cum into her tainted cunt. She screamed in delight as she hit her own climax, blood-red demonic lust assaulting her senses. She felt her Master drinking all of his cum, becoming more powerful. It was the most powerful thrill she had ever experienced.

With one final gasp, her ex-boyfriend fed her the last of his cum, and slumped over beneath her. Emily panted and groaned, still reeling from the pleasure of her Master's feeding. She had never felt so alive. Her Master's presence loomed in her mind, claiming dominion on her very soul. It was an aura of pure, sinister evil.

And she loved it more than life itself.

"Well done, Emily. He lives on in you now. Pledge yourself to me, completely, and help him spread the gift he has given you."

"Yes... Yes Master. I do. I am yours, forever. I am the darkness to your shadow, the instrument of your lust. I will spread this gift. I will please you."

************************************************************

Carly watched the process alongside her sisters, a perverse thrill coursing through her. Nothing turned her on it seemed like the corruption of an innocent spirit. As Emily climaxed and drained the life from her ex, Carly watched as Emily's aura grew dark. Oppressively dark. The taint on her soul rivaled even that of Carly's. She had given herself so, so completely. And then, she spoke:

"Yes... Yes Master. I do. I am yours, forever. I am the darkness to your shadow, the instrument of your lust. I will spread this gift. I will please you."

Carly raised a skeptical eyebrow.

"Okay, well that might be a bit much."