The Erotic Mind-Control Story Archive

The Blackheart Stone

Chapter 7

It was Monday again. Beth woke up feeling groggy and exhausted with no idea why. No idea at all that her body had been used and abused all weekend for ceaseless sinful sex in every hole. The Demoness had cleaned up after herself, so all the stains and smells of the weekend had been washed away, the bruises healed and the red welts sent away. But still, there was a deep ache in her cunt and anus from the cock pounding she had received—or rather, the Demoness had received. Beth received all the pain with none of the pleasure.

Jake slept on beside her. Beth noticed that he was fully erect. The bedsheet was practically a tent propped up by his massive pole. Had it always been that big? She wondered. Just what exactly do he and the Demoness get up to while I’m gone?

Beth felt a momentary pang of jealousy and then sent it away. It had been her choice, after all. And it was a small price to pay. Better she lose him to another woman for a weekend each month than lose him entirely. Besides, she really liked the attention, and not just from Jake.

It was as if she was a sexy newcomer in town and at work. Men who previously ignored her now turned their heads as she strolled past. The customer service she received in shops and bars was now lightning fast—with extra portions, free drinks, discounts offered with a cheeky wink and the occasional phone number. And at work she was now next in line for a promotion that before had been well out of reach.

So yes. It was worth the strange aches she had after every possession, worth losing Jake for a weekend each month. She had never felt so sexy and empowered. She rose, worked out the kinks in her body with a few stretches and went to dress.

Her underwear didn’t fit.

She tried on three sets of bras and panties.

Her breasts spilled over the cups of her bras.

Her panties rode up between her butt cheeks like they were thongs.

She studied herself in the mirror. She didn’t look much bigger, so it could only have been an extra size or two. But still. She frowned. What the hell was K’Yara doing to her? This was her body, dammit. Before she had been perfectly sculpted and beautiful—now she was approaching… approaching what? The sort of porn star Jake liked to ogle?

She hefted her breasts. They spilled out of her hands. She let go. They floated on her chest unsupported, kept up by the Demonesses’ dark magic against gravity. So she didn’t need a bra. With a loose blouse she could get by.

Beth returned to her underwear drawer, wondering whether to go commando or not. Wearing a thong all day sounded uncomfortable. Then she noticed a pair of lacy pink panties that she didn’t recognise. Pink wasn’t her colour. She held them up suspiciously.

Strong hands suddenly closed around her waist and moved upward. She slapped them away and whirled on Jake.

‘Where did these come from?’ she snapped.

Jake shrugged. ‘I can’t remember where you bought them.’

‘These aren’t mine,’ she shouted.

Jake weighed up the situation. They belonged to Tia. K’Yara and Jake thought they had dressed the girl up in all of her clothes before sending her home in a taxi, but somehow her panties had escaped and wound up in the laundry along with Beth’s clothes. Before the weekend, he would have broken down and confessed. But something about ordering Tia around like his own personal fucktoy had made him realise his own masculine power. K’Yara, Tia, Beth—they were his to do with as he fucking well pleased.

‘They’re yours, babe. You’re still half asleep. Come back to bed and wake up properly,’ he took her hand.

She broke free from his grasp. ‘I don’t like pink.’

‘Yes. You do. You love pink. And you should wear more of it. Pink nails and lips would look really hot on you.’

Beth blinked in confusion, her rage suddenly fizzling out. She never thought she liked pink but Jake seemed so cool and certain about the whole thing. Maybe she really did like pink. The panties did look kind of cute. And pink nails to match? It sounded hot just like Jake said.

He took her hand and guided her back to bed, back to his still erect prick. Within seconds her mouth had enveloped it. Gosh, swallowing this much usually chokes me, but now it’s like so easy, she thought. And I really should get some pink lipstick…

Chapter 8

The fourth possession was nearly upon them. Beth sat on the end of her bed and toyed with the pendant. She looked down morosely at her pink fingernails. They seemed wrong and right at the same time, just like the whole of the last month running up to now. Jake had been different towards her—manly and cruel. It made her so wet, the way he decisively ordered her around, the way he would just bend her over when was doing the dishes and fuck her senseless, explode inside her and then walk off, leaving her dazed and happy. But it also scared her. Things didn’t used to be like this. She felt as if she was losing herself, and losing Jake. The whole point of the pact had been to keep him close. Maybe it was time to end the whole thing.

‘Jake, honey. I don’t think I want to keep doing this. It doesn’t feel right anymore.’

‘But I like the way you look now, babe. Aren’t you happy with how you look? How it feels? How this feels?’ he caressed her cheek with an open palmed hand and she felt a surge of electricity course through her. The sensation ramped up in voltage as his hand moved down, over her neck, and rested on the huge shelf of her breasts. She bit her lip.

Suddenly, he tore away her nightgown, exposing her thick, curvy body, and flipped her round so she was knelt doggy style on the bed. She leant forward and rested on her huge tits, bracing for the impact she knew was about to come.

They were both so lost in the savagely intense fucking that neither of them noticed the thick black some pouring out from the stone. It wreathed Beth’s head and filled her mouth and eyes, staining the lips black and turning the eyes into darkest obsidian. The faint trail of white smoke seeped from Beth’s mouth and entered the stone.

‘Oh fuck, what a way to arrive!’ K’Yara howled. Her first sensations of taking over Beth’s body were of being pounded hard by Jake. She grinned. ‘Here come the tits and ass, baby!’

Jake stared in wide-eyed amazement as the round bubble-butt he had been holding onto ballooned outward in cartoon proportions. It was the stuff of imagination and photoshopping.

The same was happening up front with K’Yara’s tits. They swelled and spread across the bed, cushioning her nicely as she rocked back and forth against Jake’s cock.

K’Yara clenched her cunt muscles and brought Jake to an intense finish. He collapsed, momentarily exhausted, against the luscious flesh of what had been, a few minutes ago, his wife’s body. K’Yara wriggled free and gasped slightly as Jake’s cock popped out. It trailed a thick, long string of cum. More man juices oozed from her gaping snatch.

‘My, we’ve already made a mess. We spend so much time cleaning up, don’t we? Luckily I have a solution for that.’ K’Yara smiled. There was a knock at the front door. ‘And right on time!’

K’Yara bounced out of the room—almost literally, her huge breasts and ass rolling and bouncing and swaying with fluid motion as she strode away. Moments later she returned with Tia in tow. Jake noticed how glassy eyed and dazed Tia looked, as if she was under a spell.

‘Now, my pet. Clean that up first, and then make us something nice to eat. We’ll need to keep our energy up for the weekend. And while you do that, I want to make some alterations.’

Jake propped himself up to see what K’Yara was up to but Tia blocked his view as she attended to the ‘mess’. She gripped his shaft and began to lick away the slick coating of cunt juices and man milk. He fell back and relaxed as the lithe young waitress worked him back to hardness.

‘My wife is thinking of cancelling the contract,’ he said to K’Yara, who had gone into the walk-in-wardrobe to admire herself in the mirror.

‘Convince her otherwise, my lover, otherwise you will miss out on pretty little me.’

‘I dunno, she seems so unhappy lately,’ Jake pushed Tia away. The girl mewled in disappointment and left to prepare food.

K’Yara emerged from the wardrobe. The cartoon porn star figure was gone. Instead, K’Yara had shrunk the tits and ass down to more modest proportions—as far as breasts the size of her head and an ass that could support a crate of beer were modest—and grown up in height. Her legs had lengthened out, making her as tall as Jake. But that wasn’t caught Jake’s eyes. At least not at first.

K’Yara had changed the hair to a night black mane that ran down her back and stopped just before the curve of her buttocks. The colour matched her lips, fingernails and nipples. If she had bothered with cunt hair, that too would have been black, blacker, blackest—a black so dark it sucked in all light and attention and returned only waves of lust and sin.

Two small, sharp horns pierced the hair high on the sides of her forehead and curved back round.

His wife’s once tanned skin was now alabaster white. The Demoness was almost a monochrome image, with the exception of the fiery red eyes. Jake realised there was no pupil in those eyes, only smoke and unholy fire.

K’Yara strutted toward him on long, muscled legs that were like sculpted columns of marble. She seized his shaft with her hand, her razor black talons encircling them with their promise of pain and pleasure to come. ‘You do love me, don’t you, darling?’

‘What?’ Jake sat upright sharply. ‘I love…’ my wife, he was about to say. He never finished.

K’Yara tightened her grip and darted down, plunging his cock head into the hot, wet embrace of her mouth. It felt like a dozen tongues were rolling around his cock and shaft and he gasped. The heat was intense. The Demoness released him and his manhood slipped out. Disappointment hit Jake as the cold air hit his cock. It screamed for attention.

‘I want you to love me and not her, my darling. Be all mine.’

‘Look, this is great, but I love my wife.’

‘Why? Is the sex better?’

‘It’s not just about the sex. We do other things.’

‘Aren’t I better in every way? Don’t you look forward to these little fuck sessions of ours?’

‘Yes, but…’

‘And I can seduce a hundred sluts to cook and clean and run chores for us, and for you to fuck.’

‘My cock is about to fall off from all the sex we have, let alone fucking anyone else.’

‘Poor baby, here, let me help,’ K’Yara spat on Jake’s cock. The saliva was thick and black, like oil, and it absorbed into his manhood. The veins turned black, and the glans turned the same sinful colour as K’Yara’s lips. It throbbed and Jake gasped. Pain shot through him as his cock throbbed harder, growing with each beating pulse. It thickened and stretched and grew and lengthened until K’Yara needed two hands to hold on to it.

Jake marvelled at it. It felt ironhard, like he could easily fuck a hole in a brick wall, or tear into a hundred sluts without letting up. Beneath the armour plating it boiled with heat and screamed for release. He grabbed K’Yara hard with both hands and yanked her toward him. She grinned, steadied the impossible shaft and positioned herself over it.

When it went in even K’Yara, a sex demoness from the pit of hell, screamed at the size and force of it.

It nearly killed Tia when she returned later on, with a tray of food, and was pulled straight into bed by Jake. No matter how often he came the pressure never eased off.

Chapter 9

K’Yara’s question weighed on Jake’s mind. It wasn’t that he loved the demoness. It was just that things were strained between him and his wife. Beth was moody all the time. So too was Jake, though mainly because their sex life had plummeted to zero.

The monster cock had been fun over the weekend but K’Yara hadn’t returned it to normal size, and it was a struggle squeezing it into Beth. It was as if the Demoness had booby trapped Beth’s body, so that her body chemistry made her constantly tired and irritable and her cunt too small to accept anything larger than a finger.

Jake needed release badly. Beth refused sex on all fronts. After their second painful attempt was aborted, he suggested anal or a blowjob—even a tit wank or hand job would have given him some satisfaction—but all Beth could do was curl up and sob.

Twice Beth had tried to summon K’Yara to call off the deal. Both times she had fallen asleep part way through the ceremony. Jake figured it was another booby trap, some sort of mental trigger that put Beth to sleep whenever she tried to call on the demoness.

Jake could have completed the summoning for her, but instead he put away the blood offering and incense and carried Beth to bed. Both times he had barely restrained himself from lubing up his shaft and fucking her passed out body.

He was a man in torment on several counts. Something had to give. Realistically, they needed to end the demonic pact and go back to how things were. But. But the sex he had with the demoness was like nothing else. It was a drug and he was addicted. He counted the days to the next session. Saving his wife should have been the obvious choice but instead he was on a dark road toward sacrificing her in favour of the demoness.

‘Give her to me, my love. If I have her entirely we will always be together. Every day and every night can be like this one,’ K’Yara whispered into his ear. It was the fifth visitation, sometime in the early hours of the Saturday, when both Jake and K’Yara were spent and lying in each other’s arms. Tia and her friend were somewhere else in the bed. Jake couldn’t remember Tia’s friend’s name—only her expression as she was lured to the house by Tia and then seduced by K’Yara. She had gone from confused to cock-hungry in under a minute.

‘Every day you can come home from work to a tidy house, a cooked dinner, and three dripping wet slits to put your hard cock into,’ K’Yara kept whispering into his ear, punctuating her point by lazily tugging at his cock in a slow, sensual motion. ‘What have you got right now? A so-called modern woman who expects you to work and do half of the house chores? And what sex do you get in return? Nothing. I can give you everything. Every hole, any girl. Just give her to me.’

Jake thought it over. The current arrangement was hell. The waiting was too long, the weeks in between full of arguments with Beth. Nor could he go back. If he helped Beth to cancel the pact then the sex would be a pale imitation. Barely even sex at all.

The two slave girls stirred, as if bidden by their dark mistress, and began to tease his cock and balls with their hungry mouths. His release was building but kept at bay.

‘Okay,’ he said.

‘Good boy. Now you may cum, and then get some rest.’

His cock exploded, showering the two girls in torrents of sticky fluid. Exhausted, Jake passed out.

When he woke up the room was lit by candlelight and suffused with the aroma of incense. There was a low chanting sound. He looked up and saw K’Yara and the two girls stood around a circle of runes and arcane symbols. In the centre of the circle, the copper bowl was supported above a candle.

‘Join us, Jake,’ K’Yara commanded.

He rose and moved toward the circle. He stood where K’Yara pointed. There was a pentagram at his feet, with each of them stood at a point. One point remained empty. The chanting continued. Tia and her friend appeared hypnotised, their eyes blank as their mouths ceaselessly mumbled the cant over and over.

K’Yara pivoted and presented her ass to Jake. She wiggled the gloriously round and full ass at him. ‘Put it in but be gentle, my pet. I want you to last.’

He was already putting it in. K’Yara’s snatch felt tighter and hotter than ever; her muscles massaged his cock as he slowly drove it back and forth. The chanting continued.

K’Yara took off the blackstone pendant and put it into the heated copper bowl. It hissed and seemed to emit steam. A white mist fizzed out and concentrated over the fifth point of the pentagram. It took shape. A shape Jake recognised all too well. It was Bethany, his wife—or rather, her soul.

Beth stared in horror at the scene of her husband fucking the demoness while two naked sluts looked on. K’Yara was putting on one hell of a show, too. She massaged her enormous melons as she slammed her massive ass back into Jake’s cock; her face twisting in whorish ecstasy.

‘Say you love me, Jake,’ the Demoness hissed.

‘I…’ Jake hesitated and slowed down. His wife looked on in silent horror.

‘Say it,’ the Demoness insisted. She squeezed her cunt, gripping his shaft and working it toward an earth-shattering release.

‘I love you.’ Jake gasped. Right then, he would have said anything to unleash the torrent of boiling hot cum that was backed up inside him.

‘Renounce the other woman.’

‘I love you and no one else.’

‘Prove it. Give me your wedding ring.’

Jake struggled to take it off while he continued to thrust. It eventually slid off and he passed it to K’Yara. The Demoness threw it into copper cauldron. The candle flame turned black as it burned with hellish fire. The ring melted.

‘Now you may cum, my pet.’

At that, Jake went off like a cannon. Gallons of pent up juices flooded K’Yara’s cunt, filling her up all the way to her womb. She moved forward and Jake’s cock slopped out of her.

The Demoness clenched her cunt tight and carefully walked over to the bowl in the centre of the pentagram. She squatted over it, releasing an oozing gush of sticky white semen. It hissed when it hit the hot copper. Then she dragged a sharp talon across her hand to spill blood into the bowl.

The offerings were complete. The sacrifice had been made. The host body had been forsaken. The soul was lost. Now K’Yara owned the body.

Beth screamed noiselessly as her soul was pulled back into the stone, never to return to her body again. K’Yara stood and kicked the offering bowl over, breaking the ritual. The two girls collapsed like marionettes with their strings cut. Jake had fallen to his knees and he looked up as the Demoness towered over him. She spread her legs slightly and parted her pussy lips with her fingers.

‘Worship me, my pet. Show me how much you love me.’

Helplessly, Jake obeyed. He was addicted and he knew he would do anything K’Yara commanded. Anything it took to get the sex he needed.

K’Yara ruffled his hair condescendingly as he ate her out. He would be the first of her many slaves.

Epilogue

‘Oh, hey, this is really something.’ Robyn held up the pendant necklace to the light. On the velvet shop display the black stone appeared like heavy obsidian, but when she held it up it took on an angry, reddish hue. It seemed to emanate heat and power.

Byron, the shop owner, nodded and said nothing. It had been sold to him a few weeks earlier by a haggard looking man who went on to buy some expensive jewellery for ‘his mistress’. It was a strange world and Byron was not one to judge, not as long as they were a paying customer.

But this item. He had never liked it. There was something odd about it. It pulsed with silent rage. It was not a pleasant item to own, and few showed interest in it. Unlike the girl in front of him, a plain-looking teenager. She would need more than a pretty pendant to catch a boy’s attention.

‘How much is it?’ she asked.

He told her the price and she appeared disappointed. Byron hesitated. ‘Try it on. This is a very special piece that deserves a very special owner. If I think it suits you then I might just offer a discount.’

‘Oh, ok.’ With Byron’s help, Robyn tried it on. It nestled against her chest and glowed a smoky red. Robyn stared at it in the mirror, nearly falling into a trance as she watched the pulsing glow. It felt hot against her skin.

To Byron’s eyes it looked a thing of malice and evil; the stone was definitely angry at something. All the more reason to get rid. He offered her a knock down price, little more than what he paid for it. The girl gushed a happy smile and paid up. He breathed a sigh of relief when she left the shop.

Robyn didn’t want to take it off, not even when she went to bed. The stone soothed her to sleep, whispered strange things to her, and made her dream of looking like a stunning goddess. Men would fall to their knees and worship her, women would either run away in tears or serve her. All she had to do was give in and let the stone take over.

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