The daughter

Carly looked at the girl, without a hint of surprise. The tentacle that had been holding Richard whipped out to wrap the pajama-clad girl, and she screamed as she was detained. She was as pretty as Carly remembered, with long red hair and a girl-next-door face that contained an adorable smattering of freckles.

"Marie, dear. You remember Carly, right? She lives out back? Her and her friend here have a gift for you," Sheila purred.

"Mom, what the fuck!? Why are you all naked, what the fuck is this!?"

"Richard," Carly began. "I think you should go show your daughter her true purpose now. I think she'll enjoy it best coming from you."

Richard chuckled, a low laugh dripping with menace. Carly loved what these worms did to the men they turned. They embraced the darkness so quickly and so completely.

Marie continued to scream and cry and squirm as Richard walked over to his daughter, slowly peeling off her pajamas around Carly's tentacle. It was a repulsive display of perverse affection, and Carly couldn't get enough of it. Jenny was still lost, pounding into her asshole with abandon, and Sheila was masturbating furiously, hands and fingers in and on all sorts of orifices.

"Dad no, stop, please!" Marie cried. "Help me dad, stop, let me go!"

Marie was naked now, and as her skin touched and slid and rubbed along the tentacle, it left a burning sensation. Not a heat burn, though. It felt almost like Marie's soul itself was on fire. It was a deep, primal feeling. And worst of all, Marie found that it... felt good.

"Keep screaming, sweetheart... I want to hear it when you break," Richard moaned in her ear. Carly broke a deranged smile and her eyes rolled, as a delicious climax rolled through her.

Marie just shouted, and struggled even harder, but immediately went rigid as Richard's monstrous cock slid deep inside her. He grabbed her hair in one hand and her left breast in the other, and wasted no time in pumping hard and deep into his innocent daughter. Carly watched the display, watched Marie shriek and cry as her pussy and her mind were assaulted with an ever-growing pleasure. Eventually, she found it impossible to just watch.

Her tentacle burst from her snatch, its engorged length snaking through the air, past Sheila, and right into Marie's open mouth. The girl screamed even louder than before, petrified by the new invader, but Carly just moaned with renewed lust, feeling Jenny's cock ravage her ass while her tentacle slithered in and out of the pretty girl's throat.

They continued like that, Richard holding his daughter by her hips, forcing his cock into her tight pussy. His head was thrown back as he leaked demonic venom into his daughter. Carly had her tentacle halfway down Marie's throat, while the girl herself had quieted, her screams and struggles becoming less and less frantic. Carly's back tentacle was still wrapped around the girl, squeezing and teasing her right tit.

Then Carly came. A wicked orgasm surged through Carly, and she cooed as black corruption suffused her tentacle and flooded Marie's mouth and stomach. Richard screamed in triumph as he came too, filling his daughter's untainted cunt with boiling liquid evil.

Marie panicked. She had been falling deeper and deeper into the spell of these nightmarish invaders. Maybe it isn't so bad, she'd thought. But when the cum spilled into her mouth and pussy, the gravity of her situation came roaring back. She tried again, desperately, to extricate herself from her captors, cum sloshing around inside her as she bucked and flailed. That burning, deep inside, that she had felt before was growing. Where before it was a smoldering that had made her uncomfortable, it was quickly growing into a fire that was consuming her. She felt her panic and fear begin to melt as the liquid inside her began to absorb, spreading through her. She felt power. Strength. And most of all, she felt pleasure growing at a rapid pace. Her body was betraying her.

"See, sweetheart? It feels so good to let go. Let us remake you."

But even though her body felt pleasure that was growing steadily, Marie was able to fight. Though her body may want this, she knew that she didn't, and her mind fortified itself, fighting the pleasure of her body's corruption. That is, until the two came again.

Once more, Carly and Richard came, each flooding the poor girl with rivers of demonic taint. They could both feel its presence growing within her, feel it melting and reforming her insides. Outside, Marie's body was changing. Her face was becoming a perverted caricature of itself, her girl-next-door beauty becoming enhanced to extremes, her body filling out from fit, to full, to perfect. The best part came when a lump formed at the base of her spine, bulging and pushing at her skin until it started to extend and elongate. After the third ejaculation from her two depraved partners, Marie's tail had grown to 6 feet in length, with a bulbous phallic head on the end. She had even sprouted small horns, the colour of sandstone.

After that third ejaculation, the resistance in Marie's mind faltered. The feeling of another wave of fresh cum streaming into her body, filling every corner with malevolence, shattered her last grasp of thought.

"This does not feel good. This does not feel good. This does not feel good. This does not feel good. This does feel good. This does not feel good. This does not feel good. This does feel good. This does feel good. This does not feel good. This does feel good. This does feel good. This does feel good. Fuck, does this feel good!"

As her mind broke, Marie came for the first time as a demon, squealing around Carly's delicious tentacle. She swallowed the liquid sin that it spit out, tasting it for the first time with a tainted tongue. And as her mind was washed in debauchery and carnal lust, she felt her loins stir.

She unconsciously channeled a bulk of the corrupting fluid searing her veins into her clit, and, with giddy enthusiasm, felt the pleasure nub expand and stretch until she had grown a pulsing red cock, not unlike her father's. Her ovaries warped and twisted, seething with corruption. They shriveled, an then expanded with new purpose, a small dose of corrupting fluid now connected to her new cock.

Carly watched the corruption complete itself, thrilled beyond belief that she had finally got to see the effects of her corruption on an innocent girl. It was more than she ever could have dreamed; she couldn't wait to do it again.

Marie was bucking on her father's cock, openly fellating Carly's tentacle, while her hands jerked her new cock. Her eyes rolled back in her head and she giggled around the tentacle as she came from both her cock and pussy, spewing corruption on the ground beneath her. Sheila couldn't contain herself any longer, and scrambled over to where her daughter was ejaculating jet-black slime, licking it off the ground and catching the streams in her mouth.

Soon, everyone started to come down. Jenny finished one last time in Carly, and Carly's tentacle left Marie's mouth with a pop, sliding back inside her slimy snatch. Her father pulled out as Carly's back tentacle released the transformed girl. Marie stood on her own two feet as a Succubus. She stretched, her new body twisting and flexing invitingly.

"Mmm... this- this is fucking delicious! You're not done already, are you daddy?"

Richard only grunted, spearing his daughter's perfect pussy on his cock once again. Marie squealed, biting her lip. She looked seductively at her mother on the floor in front of her.

"If you love my cum so much, you should get it from the source!" Marie said, breathlessly.

Sheila also wasted no time, getting on her feet and bending over in front of her daughter. Marie giggled as she grabbed her mom's hips and thrust her cock deep into the Broodmother's slime-drenched cunt. With delirious excitement, Marie brought her tail to bear, plunging it into her mother's ass. She cackled as she double penetrated her mother, her father's dick pummeling her pussy.

Carly picked up two of the worms from the floor, and brought them to the rutting trio. She positioned their phallic mouths at Sheila's tits, and they immediately latched on. Sheila cried out in bliss, looking up at Carly with glazed eyes to give an unfocused 'thank you'.

"Make sure you feed them well. They need you to grow strong."

"You're not leaving, are you? Think you can just defile me and then ditch?" Marie drawled.

Carly smirked. "We're needed for a project, but we can come back soon."

"Pfft forget that, you're honestly telling me it can't wait? Come fuck us, I know your friend doesn't want to leave. Besides, I haven't properly thanked you for filling me with all that nasty shit!"

"I could fuck this ass some more," Jenny grunted, rubbing her hands and cock along Carly's bountiful butt. Carly sighed shakily.

"Yeah... yeah you're right. It's only polite to stay, I guess."

Carly attached her dripping cunt to Sheila's mouth, and slowly snaked her tentacle down the demon's throat. Sheila moaned, a decadent, lusty sigh that made Carly's mind numb with delirium. Jenny walked up and thrust herself back into Carly's ass, groping her full tits and biting and kissing her.

"Thank you..." she whispered timidly into Carly's ear. "I- we all really appreciate what you did for us."

She continued to thrust into Carly, gentle, but firm. Carly had never seen her like this.

"You mean turning you into insatiable hell-spawn?" Carly chided.

"Yes," Jenny moaned. "I think even if I wasn't tainted, if I'd known that this is what life would be like, I would've agreed anyway."

"Let's hope Rain comes to the same conclusion," Carly giggled.

They both came.