Tiffany has fun with her family

"More... more! Satan be praised!"

Joanne sat at the back of the sex dungeon her bed room had become, her wings facing the red velvet pillow - moaning wildly in depraved pleasure. Her two dear children were on her sides now, sucking on her erect nipples. They were hungrily drinking the sweet black milk, writhing in pleasure in turn as one was jerked off and the other fingered by their loving mommy. Her ass - already large in her past life, but now more befitting a fertility goddess than a mere human - was facing the door, her legs spread wide to let Mary feast on her wet pussy.

"Ahh- yes-- faster, mommy!"

The simple white dress that she once so loved lied discarded on the floor, torn into shreds along with the clothes of the rest of the Byrne family. Just like her morals, her dreams, her principles and inhibitions, it was cast aside by the now-reborn Joanne because it stood in the way of the only thing that mattered to her now: sex. Only her pearl necklace remained on her now outrageously curvy body, turned black from the demonic corruption flowing within. She now resembled a stylish aged prostitute, and her new self certainly had the mind to boot. Except, of course, such blasphemous ideas as withholding sex for payment did not even cross her mind.

"Put it deeper, mom! Ahh-- still not enough! More! More!"

Mary was proud of her work. Within less than an hour, she and her best friend-turned-lover corrupted this once pure household into an incestuous den of sin to match her home. This whole affair couldn't be more fun. Her pinning the curvy matriarch of the family against the wall, introducing her to the wonders of sapphic lust, while Tiffany toyed with her little brother's dick and teased him mercilessly - just thinking about this wild ravishment gave her micro-orgasms. Tim, the horny teenager that he was, broke and become an incestuous slutboy within minutes. The pious Joanne was harder to break, but unfortunately for her, her love for her children was stronger than her faith. If they had become servants of Hell, then so would her, just to stay with them. Turning that love into lust was easy enough.

"Ahhh, yes, good kids, drink my milk, ahhh..."

Now... they were perfect. All of them - the curvaceous, buxom MILF of a succubus that was once Joanne, the lithe, limber Tiffany, and the handsome long-haired twink that Tim had become - were ideal sexual predators, created to entice, fuck, and dominate. Despite the changes, the family resemblance still remained in their transformed features: the red hair of the Byrnes was still there, though darkened into a sensual crimson, as were their sapphire eyes that now glew and had reptilian irises. Furthermore, each demon had the same runic symbol tattooed at the bottom of their stomachs. They were still family, bound by the Idol in new, darker, depraved ways.

One of which Mary would soon experience.

"Ahh-- good girl-- I am cumming!-- cum with me!"

It came as a flash,. There was a feeling of wetness in Mary's mouth, then the symphony of moans coming from the Byrne family, and then a fountain of black nectar bursting to the air. Juice, seed, and milk, all tainted by the Idol, all made into a vessel of corruption. All released together in the shared, mind-shattering orgasm.

All demons had the ability to control their partners' ability to cum to some extent, and this was especially true when they shared a bond - such as a bond of blood. The three incestuous demons came in absolute synchronicity, filling the room with their ecstatic moans and their fluids. A fountain of seed escaped Tim's mammoth's dick, touching the walls; while the black lube of his sister and mother stained the bedsheets.

The feeling of shared ecstasy made Mary cum as well shortly after - she was not part of the family, but such a depraved spectacle was enough go make her burst, and soon her moans joined the unholy symphony. She was almost certain that the neighbours could hear it. No matter. They would soon be just like them.

"To think I denied all this for so long..." Joanne whispered, still quivering from the orgasm. She cupped her heavy breasts with her now-clawed hands, the black milk still flowing down. "So... good..."

"We must share this gift with others." Tiffany responded calmly. These thoughts were not truly their own: she was merely obeying the new instincts of her corrupted body, which told her to spread the corruption. "Every family should be like ours. We must spread."

The matriarch pondered. Who would be the first to fall? Who would be worthy enough to join the ranks of the hellspawn?