The Blackheart Stone

K'Yara noticed the change in Jake. She spun round and planted a deep, wet, soul-stealing kiss on Jake's lips. Her long tongue quested hungrily in his mouth and the two sparred like sloppy teenagers. K'Yara's eyes flashed red and she grinned with horny abandon. She whispered into Jake's ear.

'Will you take my virginity, Daddy? It will be our little secret. I won't tell Mummy.' Then she let go, fell to the bed and pulled up the hem of her plaid skirt. Jake watched as the impossibly large breasts grew the extra cup size needed to finally destroy every seam on the shirt. It fell away from K'Yara's body at the same time as the last shreds of Jake's resistance. He leapt on her, prick in hand.

K'Yara's words hadn't just been mere roleplay. The demoness had returned virginity to the body. They both gasped as Jake's manhood found initial resistance in K'Yara's cunt and then burst through.

Jake had never deflowered a woman before. It had never bothered him. He always figured it would be a painful, messy experience, and not at all like the porn shows where the girl looked like she was about to die from pleasure.

This was like a porn show where the girl looked like she was about to die from pleasure. K'Yara howled and screamed and cried, digging her nails deep into Jake's flesh as he pounded into her. After that, he never thought about his wife again all weekend.

Chapter 6

It was nearly time for the demonesses' third visit. Jake tried to hide his excitement. By now, his wife was relaxed. After the second time he had again reassured Beth that nothing of interest had happened, apart from some fairly vanilla sex.

Jake nearly laughed out loud. The sex had been crazier than the first time. The bedsheets had to be thrown out and replaced. Not even dry cleaning could have removed all the semen and 'virgin' blood from them. Fortunately (or unfortunately, Jake wasn't really sure), the demoness' extensive modifications to Beth's body had been undone when she left, and when Beth woke up on the Monday she was her normal self.

Or rather, her normal enhanced self.

So now Jake wondered what was going to happen this time round.

The exchange happened as it had done before. Thick smoke poured from the stone. It seemed darker and fuller than the earlier times, while Beth's white smoke looked fainter. There wasn't time for Jake to dwell on this, as the demoness took over Beth's body and happily stretched out as if waking from a long, restful sleep.

Jake began to undress. K'Yara laughed, her eyes glowing a sensual red. 'Not so fast, stud. You're meant to wine and dine a lady first.'

Jake gave her a confused look. K'Yara rolled her eyes and walked over to the wardrobe.

'I look forward to fucking your brains out, darling, but I haven't left the house once. I want to see the world outside.'

'Well...' Jake hesitated. It seemed a simple enough request, harmless in fact, but it conflicted with the pent-up sexual feelings of the past month, and the fact that he knew it wouldn't be a good idea to be seen around town with a beautiful woman who wasn't his wife.

K'Yara picked out one of his wife's plain floral dresses, tutted, and gave it a casual flick. It shimmered and rippled as it changed shape and colour from top the bottom, transforming into a bright red, contour hugging, backless dress. She put it on.

'I'm not bad, I'm just drawn that way,' K'Yara giggled, put her hand on her hip and threw her massive chest out in a Jessica Rabbit pose. Her hair colour exploded into fiery redness to match the look. Jake was even more inclined to keep the demoness home: she had a body that needed to be fucked right now, and every head in town would be turned to look at her, and then him. By tomorrow everyone would think he was having an affair.

As if reading his mind, she sashayed over, wrapped her sensual around him and kissed him. 'It's fine, lover. We'll go out of town. Find a nice club. Have a few drinks and go dancing.'

'I suppose...'

'Have you ever had a threesome?'

'What?' Jake was taken aback by the question. 'No.'

'Poor boy. Do you think I really care about dinner and dancing? I like women too, you know. So let's go pick one out from a club and bring her back.' K'Yara's eyes sparkled mischievously. Jake was dumbstruck, so she continued. 'I'll take that as a yes. Get dressed and call a cab, lover.'

Jake drove instead of calling a cab. He didn't have the confidence that a cab driver would be able to keep his eyes on the road with K'Yara reflected from the back seat in the rear view mirror. There was another reason it was a good choice. K'Yara gave him a slow, sensual blowjob as he drove north out of town toward a country club he knew of. By the time he pulled up into the car park, K'Yara worked her magic and released his pent-up orgasm. The climax nearly wiped him out.

'Come on, lover. Let's pick up a treat for tonight's entertainment.'

They entered the club and sat down at a table that afforded them a view across the floor. Together they sipped drinks, played with each other under the table, and watched the girls go by. Jake wasn't entirely sure what the demoness had in mind but he went along with it. She glanced and nodded at a blonde girl that was passing by. 'Fancy fucking that one?'

Jake shook his head and pointed to a woman at the bar. 'No. Too tall. How about that one?'

K'Yara sneered. 'We can do better.'

The waitress came over. 'Can I get you anything else?'

K'Yara looked the waitress up and down. The waitress smiled nervously, suddenly aware of how beautiful K'Yara was. She felt like a rabbit pinned in headlights as the gorgeous demoness stared at her. It was as if K'Yara was stripping away her clothes with her eyes, and for a fleeting second the waitress felt utterly naked in the middle of the nightclub.

The demoness glanced over at Jake with a smirk. 'Thinking what I'm thinking?'

Jake stroked his stubbled chin and appraised the waitress. She was young and lean, with a body well-toned from some sport or other, and had a skilful way of applying make-up that gave her an edgy, confident look when she wasn't being mentally stripped naked by a demoness. Her breasts were a good handful, though Jake was losing perspective on tits and ass now that he had a pornstar demoness for an illicit lover.

Speaking of ass...

'Turn around, babe,' Jake ordered the waitress.

'My name is Tia,' she huffed, suddenly annoyed by the treatment she was receiving.

'Fine. Turn around, Tia,' Jake made a spin motion with his finger.

'That's better,' she retorted. She gave a slow spin, her head a little fuzzy. Why was she letting these two ogle and order her around? Any resistance melted when she completed her spin and her eyes landed on K'Yara. Those eyes... they were a smoky, blazing fire that entranced and drew her in...

Tia blinked. She was in a car, driving back into town. The rugged, good looking guy who had been admiring her was up front behind the wheel. She looked around for the woman. Suddenly she turned and found her face up close against a pair of mammoth mammaries.

'Looking for something, sugar?' a silken voice purred.

'Where am I?' Tia asked. The last half hour was a blur. She vaguely recalled agreeing to go along with these people. Why would she do that?

'We're going back to our place for a little fun, my pet.'

'What? But...'

'Hush. Here. Focus on these,' K'Yara's hands pulled down her dress. For a moment, the dress refused to come down over the plump pair of tits, but with a sudden pop the dress tugged free and the huge breasts bounced exquisitely. They filled Tia's entire vision and her gaze focussed on two stiffening nipples. They were thick, puffy and delicious looking.

Delicious looking? I've never considered tits to be delicious before, Tia's mind protested.

The protest didn't last long. K'Yara's hand snaked around the back of her head and drew her in. Instinctively she began to suck and lick. For a second she was startled when milk expressed from a nipple and she nearly drew back. But then...

Oh my fucking God, it's so delicious. Oh God, now I'm horny. Why am I so hot and horny?

She lost focus and drifted out in a haze of drugged bliss. When she blinked and looked around, she was in a bedroom. The man was there, naked and holding his cock. Cock. That was what Tia needed. The demon milk had acted as a supercharged aphrodisiac, and now she wanted to be fucked more than anything else she had ever wanted in her life. Her snatch was a gushing waterfall, a torrent of girl juices, and yet so thirsty. Thirsty for only what a cock could offer. She practically pounced on Jake.

'Easy, my pet. We've got all night,' the demoness held her back, pushed her down to her knees. Together they crawled to Jake and approached his cock, taking it in turns to kiss and caress and suck it. 'So, is this how you pictured your threesome turning out?' K'Yara winked at Jake.

'Sure. But I've got a few other ideas in mind as well,' Jake smiled.

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.