The Beast Takes Over

Overwhelmed by her maternal instincts, Genevieve Marsh lunged forward and hugged her daughter tight. She trusted Lily with her life. The girl she knew would never hurt her and besides, all that mattered in this moment was to make sure Lily knew she was loved. Whatever had happened to Genevieve's precious daughter didn't matter right now. What mattered was a mother's love for her daughter.

"No matter what has happened, I love you."

"Mom," Lily said through gritted teeth.

Little did Genevieve Marsh realize but her moment of pure love had damned her daughter's soul.

As Genevieve held Lily, she felt her daughter's breathing quicken.

"No, no, no!" Lily whimpered. "Stop I can't, ugh, I-ohhhhhh."

Genevieve felt the monstrosity attached to her daughter's crotch press hard against her.

Inside the Lily's mind, a war was taking place between her and the voice. She was losing badly.

She's ripe for the taking. You can feel her tits pressed against you. Her scent in your nostrils. Fuck her! Fuck your mother! All the pain and struggle can be over if you fuck her. Fulfill your destiny and fuck this bitch until your balls are empty!

The voice punctuated every statement with a pulsing throb in the penis. Lust rushed through Lily's veins like lightning, turning her legs to jelly and numbing her brain.

"I can't! It's wrong!" Lily cried.

Genevieve held Lily closer. This was her baby. If only she could break through. She was blissfully unaware of the unholy battle taking place inside her daughter.

Why can't you understand this simple fact? You and I are in it for the long haul. I am part of you now. The only wrong and right is the pleasure you give us!

"But I--"

Fuck her. Be a man and fuck your mother! Fuck her and fill her with your cum! It's the only way for you to be free!

Lily's eyes rolled back in her head and her mind went blank. Suddenly, all she could feel was the throbbing power between her legs and the sweet, feminine softness pressed against her. Her mother. Her kind, loving mother. Once upon a time, Lily had come out of her mother's pussy. Now she had the chance to go back in. To return to that perfect intimacy that had been robbed from her at birth. One flesh. One being.

A final moment of hesitation caught Lily. It was a mere flickering of the human kindness she once possessed. It was sad moment in which she realized how powerless she was to the monster between her legs. Even though this penis had once been a part of an alien creature, it was now as much a part of her as an arm and a leg. It had changed her on a fundamental level. Her womb, her vagina, her ability to bear children. All of it had been robbed from her, replaced with a throbbing darkness that seemed to poison her soul. She had tried to fight it, but that was a losing battle. Her run in with Helen should have proved that to her. Now here she was with the person she loved most in life and once again she was going to give in to the voice. Give in to the cock.

Her cock.

This thing between her legs was now hers. She had tried to keep it separate, but that had failed. She had a penis and goddammit, she was going to use it. She was going to **** her mother and embrace this new dark power.

"I'm sorry Mom," Lily said.

Before Genevieve Marsh could process what was happening, Lily grabbed her, her fingers digging into the woman's arms like claws made of iron. The women locked eyes. Genevieve's were big and green, full of terror and sorrow in equal measures. Lily's were a different story entirely. As the last flicker of humanity passed out of Lily's spirit, her eyes took on a baleful yellow light. It was as if hellfire had ignited in her gaze.

Lily took her mother and threw her across the room. Genevieve tumbled onto the tile floor, her whole body shivering from the fall.

Then Lily yanked down her skirt, ripped off her shirt and bra, and began to make her way to her defenseless mother. As she walked, her cock swung back and forth like lecherous metronome keeping the beat to her carnal desires.

Everything moved quickly then. Lily descended on her horrified mother and ripped her clothes to shreds, not even bothering to properly undress the woman. She had a goal and she would kill to meet it. Off came her mother's jeans. Off came her conservative gray panties. Soon, her mother's fire crotch and sweet pussy were revealed.

"Please God, Please don't do this!" Genevieve begged.

Lily hesitated once more, not on account of her humanity, but rather to savor this moment. This was the last time she would ever be human. She could feel the evil power taking control. Even now, her body was beginning to change. Her canines were lengthening, her muscles bulging slightly, her body swelling with power. Power built up inside of her, ready to be released in one act of pure debauchery.

Lily pressed her cock against her mother's entrance. The tender flesh caressed her glans, stoking the flames of her lust. She pressed harder and for a moment worried she was simply too big to enter her mother.

Then Genevieve's pussy gave way to the unholy invader.

As the soft flesh of her mother's insides sheathed her mighty sword, Lily let out a loud howl. As she cried, her voice grew deeper and deeper. No one listening in would have imagined a voice so deep and powerful would belong to an eighteen year old girl.

Lily buried herself to the hilt in her mother's pussy, her huge testicles slapping hard against her mother's fat ass. The flames of lust burned all traces of humanity away.

Yes! That's my girl! Do it Lily!

"Don't worry, I'll fuck her goddamn brains out!" Lily grunted.

Genevieve could only whimper as her daughter began to pump her massive cock in and out. In and out. A breeding rhythm threatening to obliterate all humanity in both of them.