Sisterly Dominance: Hypnotised

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His sister transforms him and his gf into a cock and her cum.
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Editor's note: this submission contains scenes of incest or incest content.

This is a short work of erotic fiction containing furry, or anthropomorphic, characters, which are animals that either demonstrate human intelligence or walk on two legs, for the purposes of these tales. It is a thriving and growing fandom in which creators are prevalent in art and writing especially.

All characters are over eighteen and clearly written to be so, as in all of my stories.

****

Jenniefer nibbled absent-mindedly at the inside of her cheek as she toyed with the controller of the games console, once again caught up in the endless loop of deciding what to play next. Her dark brown hair had just been washed and appeared darker than it normally was, though there was no one else there to see her.

Well, except Lindsay, her boyfriend's sister. Jenniefer tried not to think of her as she launched a new game, shifting her weight on the bean-bag chair to get more comfortable, though it was hard not to think about Lindsay sometimes. The way that the woman looked at her, like she was always in the way, doing something or being somewhere where she should not have been... Well, to say that it set her on edge was an understatement.

Of course, Lindsay was ever-aware of her presence too, scowling as she cocked a hip and eyed up the bedroom door as if she could see Jenniefer sitting on the other side of it. What a silly little girl she was, always getting underfoot, in the way when she wanted to get something from her brother. What was it that she'd sent Matt out for again -- milk? Who forgets to get in milk? Couldn't she do that instead of sitting on her backside the whole time?

Jenniefer was far from lazy but Lindsay's warped perspective of her rang through everything else as she stalked into the bedroom, a smile on her lips and a coin in the palm of her hand, tucked safely away. It should have been an innocuous little thing that didn't mean anything at all but in the fine, delicate hands as one such as her it could do more than simply pay for something. She tightened her grip on it. It was time to make Jenniefer pay, pay for all that she had done in getting in her way when there were things otherwise that would much easier for her to take. Her brother's money and possessions, of course, were among that but it was the control of it that she truly lusted for, shifting her weight from one bare foot to the other, toes curling and wriggling into the carpet. Even that was too thick and plush in the apartment that her brother owned, all on his own, her frown deepening until her otherwise pretty face was otherwise unrecognisable in the scope of a twisted, angry expression, lips pressed tightly together.

"What are you doing here?"

Lindsay's sharp bark of a voice sliced through the air as Jenniefer stiffened, not giving her the time of day. Without even sliding her gaze over, not to give Lindsay the satisfaction of affecting her in some way, she half-shrugged.

"What does it look like I'm doing?"

Lindsay scowled. She was going to do it, she really was. Maybe it was time to get rid of the stupid girl and even her brother too once and for all.

"Wasting your time, as usual. Haven't you got anything better to do than to hang around my brother's place all day?"

When Jenniefer did not acknowledge her with a response, locked on to her game with unerring focus. Maybe if she ignored her, she would go away. Sometimes that worked.

Yet, that day, it did not as Lindsay shook her head mockingly. What a foolish choice she'd made, what a silly girl. She wasn't going to be worth anything more, very soon, if she'd even been worth anything to begin with.

Jenniefer's eyes locked onto the coin, the controller falling from her hand, jaw slack, lips parted. She could not tell how it had happened but one moment she was playing the game and the next there was nothing else in the world that existed for her but that coin, how Lindsay played it back and forth, back and forth, over the backs of her fingers, a hypnotising gleam drawing her in and down, so deeply down...

"Relax..." Lindsay intoned softly, her voice taking on a darker, sultrier tone than Jenniefer had ever heard before. "There is no more for you here. Come to me. Watch the coin. There is no more for you here. Come to me. Watch the coin. Watch the coin."

Yes, yes... Yes, that was all that she had to do, falling deeper into her boyfriend's sister's trance, the glitter of the gold coin all that she could see, trickling back and forth over Lindsay's hand like water. She didn't need to think about anything else when the coin was there, Lindsay's words falling away, a dull roar of white noise rising in the back of her mind. She saw the other woman's lips moving but no sound was audible to her, caught in the trance and lost to the moment as Lindsay, with a twist to her lips, kicked the controller away, turning off the console.

Never again would Jenniefer get to play it. Not while she was under Lindsay's hold and control.

"Stand."

It was a test and a trial, a tiny order to see how far things had gone already and how much more of her influence she would have to lay over the other woman, though there was already magic in the air. Magic, indeed, that her stupid brother did not possess, Lindsay's smirk settling more comfortably across her face. Maybe things would have been different if he'd had a touch of it but, frankly, there were better things that one such as her could take from him, taking his benefit in other ways, even if it meant turning his life and that of his girlfriend's too upside down.

Jenniefer stood, entranced, not seeing what was before her, only obeying. She swayed as she stood there, mindlessly obedient, her mind blank, not knowing, not seeing, only being. There was no need for anything else as Lindsay grinned, unable to keep the wicked grin from stretching her lips wide as she swept her blonde hair back from her shoulders.

"Excellent. So, I see you are good for something." Yet there was more to come and the time was finally right to expend her power in the best of ways. "Now... Undress."

Oh, such a simple command to begin with but it sent a twist of pleasure through her gut to see Jenniefer immediately move to obey. There was even a swiftness and a speed to her obedience that pleased Lindsay further, a need stirring deep inside her that was not entirely linked to control. Yet that was not something that had to be explored as, smoothly and surely, Lindsay undressed before her.

Her T-shirt was first, the casual fabric slipping off and over her head and arms to drop to the floor in a crumpled heap. It would not be needed anymore and neither would her bra as Jenniefer arched her back and reached behind her to unclasp her bra. It was not the most comfortable of positions to twist into with a chest as large as hers and, indeed, required a degree of flexibility in the rotation of the shoulders, though she could just about manage it even when she was on the stiffer side.

Her breasts were large and, curiously, Lindsay caught sight of the tag on them: a G-cup. Of course, she was. Jenniefer carried a touch more weight on her than Lindsay may have liked, boasting a slim and slender form herself with only B-cups, though every woman knew how hard bra shopping was at the best of times. Without that weight on her chest, Lindsay knew that she had more choice but that did not stop the jealousy from rearing its ugly head. The woman's breasts pulled down heavily under their own weight, though there was still youth to them, a springiness to the skin that prevented sagging skin from becoming unappealing even to her eyes.

She had the liberty to be ugly, however, as Jenniefer hastened out of her jeans, undressing as if she was rushing in a way even if her mind did not understand why. There was no worry or concern in her and her expression was perfectly blank, perhaps even a hint of a smile tugging at her lips, born from Lindsay's eagerness. They were linked through the hypnosis and if Lindsay wanted something, well, that just made Jenniefer want it too.

Watching on hungrily, Lindsay licked her lips as Jenniefer's hips were exposed, rounded out nicely. She was a little bottom-heavy but that was a good thing as her jeans were pushed aside, socks coming off, leaving only her underwear. The cotton underwear was nothing special but her hairy pussy was, unshaved and lightly curled with natural hair, the dark strands thickly protective even though the soft lips of her pussy could still be seen tucked between her thighs when she bent over to remove her underwear from her ankles.

"Much better..."

Lindsay relished in her power and control as Jenniefer stood and waited with a small smile on her face, completely nude. There was nothing like the difference between one clothed party and the second nude one when it came to a power play and Lindsay ran her hands down Jenniefer's shoulders to her breasts, groping and squeezing while her victim could not help but moan.

"You aren't worthy of these. Get down on all fours."

Lindsay hissed through her teeth, swaying lightly as Jenniefer obeyed. Who could have known that seeing that idiotic girl obey her like a slut could have been so erotic? She might have made use of her a long time ago if she'd known but, as it was, the trance was so deep by that point that she no longer had any use for the coin that had remained in motion over the backs of her fingers, tucking it safely away in her pocket. That would come to use later, she was sure, as she completed her task there. For there was only so much that she could do at one time and it was now time to enjoy the humiliation and debasement of Jenniefer, for all that she had done and all that she had not done.

Lindsay smirked, tapping her fingers against her cheek as her thumb rested tucked under her jaw. Jenniefer was perfectly still on all fours but she must have known, at least in part, just what was coming as she had positioned her backside towards her, the smooth, fleshy round of it perfectly womanly. A little extra fat went a long way to leaving her body pleasantly soft and yielding, Lindsay groping her briefly, though a woman's body, to say the least of it, was not her thing.

But it was the humiliation of it all as her nemesis got down on all fours for her and acted like an obedient, meek little puppy, as if she could no longer do anything at all without Lindsay's say-so and permission. That was what made Lindsay's skin prickle with need, guts churning, need rising thick and fast in such a way as it could no longer be contained.

Licking her lips, her eyes danced with controlling glee.

"Act like you want to get fucked."

Jenniefer moaned and ducked her head, her long, dark hair falling forward to cover her face, though what she did right then and there was not anything she had ever done with her boyfriend. No, she would never have rocked her hips and cried out like that for him, whimpering and begging breathlessly, an incoherent stream of lust, manufactured entirely by the will of Lindsay flowing from her lips.

"Please, please, take me, fuck me, take me good and hard," Jenniefer babbled, her mind not taking in any of the words that passed her lips. "I need it, need it so badly, just need your cock in me!"

Mm... A dick.

Now, that was an interesting thought. Truth be told, Lindsay had not been completely sure just what she was going to have Jenniefer do when she had, finally, made the decision to hypnotise her, but Jenniefer herself had been the one to give her that idea. Undressing herself of her shorts and thong, leaving her purple tank-top in place, Lindsay towered over the woman that had made her life so difficult, looking down at her crotch with the lightly trimmed hair. She often went bare down there but, well, there were other things to enjoy when it came to the pleasures of the body, different style offering varying sensations.

Jenniefer didn't have any say in the matter as Lindsay dropped to her knees, catching her weight in time to not let her knees crack into the ground, though the carpet was plush enough anyway to cushion the blow. She wasted no time in rocking and pumping her hips, placing her bare crotch against Jenniefer's backside and humping her.

"Is this what you need?" Lindsay hissed, a hint of damp sweat at the back of her neck allowing some of the wispier strands of her hair to cling to her skin. "You whore... This is all you wanted, to be used... Well, now that's what you're going to get -- forever!"

There was no going back from such a thing as she growled through her teeth, grabbing Jenniefer's thick hips and pulling them back at her as if she really did have a cock or perhaps even a strap-on to use. That in itself, however, was not going to be necessary as Jenniefer's body tingled, suddenly feeling duller and heavier than ever before. Every sensation heightened as she gasped and moaned, driven by Lindsay's influence, rocking back against her, even though she could not move very much anymore. No, everything became more and more difficult to do even as Lindsay bore over her, her torso tipping, growling savagely as if she truly wanted to cause Jenniefer harm.

Perhaps one could have called it harm in how Jenniefer's arms slowly but surely pulled in against her sides, no longer useful as limbs. No, she wasn't going to need that anymore, not as her features smoothed out on her face and her hair disintegrated, leaving nothing on her head that could have possibly resembled her luxuriously well-kept locks. Her skull smoothed out and blended seamlessly into her neck, the details of her bones lingering only long enough to hold her body in shape and position for Lindsay.

Lindsay bared her teeth in a feral grin that did not suit a woman like her, yet there was little of her past self remaining with so much power coursing through her. With every beat of her heart, it grew a little more, throbbing up thick and fast, the woman's buttocks melding seamlessly to her crotch. Before her very eyes, Jenniefer's legs sucked back into her body, Jenniefer's nervous system becoming hers, every nerve-ending on fire as something akin to orgasm exploded within Lindsay. It was not any orgasm that she had known before, not even as she moaned, humping furiously as Jenniefer's body moved right along with her, seamlessly blending with her crotch.

There needed to be no more use for Jenniefer's body other than being a tool for a woman greater for her, her mind slipping away bit by bit as her body smoothed out, everything becoming elongated. There was a shrinking too, her body growing smaller and smaller, but her mind was not focused on that as pleasurable ripples teased through her, her lips remaining slightly parted as if there was something that needed to come from between them. Jenniefer saw no more, her eyes blending away, leaving nothing but perfect flesh, a fleshy lump that had been a woman, connected to Lindsay's crotch.

Jenniefer did not exist any more but what Lindsay did have was a new cock, just like what Jenniefer had wanted, shrinking slowly down to suit her size. An uncut length, the skin pulled over the glans at the tip even as what had to be a drop of saliva teased from what had been Jenniefer's lips but now was the slit at the tip of her shaft. Trembling, Lindsay rocked onto all fours, supporting herself on trembling but braced arms for the transformation of her new cock to complete itself.

There was no rush even as she moaned and rocked in please, gasping and heaving, a perfect shaft settling itself into place with the glans protruding lightly from the uncut skin. Lindsay moaned out loud with delight, some part of Jenniefer forming a pair of testicles too, though they did not hang down as heavily as she liked. Maybe they needed to be filled.

Coming back to herself, she pushed up onto her heels and crouched there, arching her back, a hand clasped around her shaft to explore every last bit of the length. Nothing was left of the woman that she had loathed and Lindsay laughed out loud to see her gone forever, used as a tool and fucked as she'd wanted to be. As the final tickle of the transformation slipped forth, what was left of Jenniefer's brain softened into semen, filling her balls, giving her a little more weight and substance to them, though it was not done yet.

No, there was only one way to ensure that Jenniefer was gone for good and gone forever and that was by destroying her mind, Lindsay pumping her cock with slow, long strokes. It would forever be a part of her unless she chose not to keep it but why not hold a trophy of battles won, to be fair, grunting thickly in the back of her throat as her hips pushed wantonly into her hand. Her cock throbbed and ached for release in a new and exquisite way, desire thrumming through as she spilt over the edge into the point of no return.

And it was there that Jenniefer's brain was spent, soaking into the carpet as she moaned out loud and worked her cock, destroying what remained of her brother's girlfriend forever. There was nothing more to it than that and her end, truly, was a disappointment as a cum-shot, therefore acting well and truly as a fitting end to a life that had not, in Lindsay's perspective, been well-lived with a brother of hers that was good for nothing too. At least, in the end, that was something that Jenniefer had had a use in.

Funny how things like that worked out.

Leaving Jenniefer there to mark and stain the carpet, Lindsay sighed contently, feeling more at peace than she had in a long time. It took but a moment to re-dress herself as her cock softened, one more task at hand remaining. But that would take the return of her brother as she settled down to wait for Matt, shivering in wicked delight at what she thought the look on his face might be when he found what she'd done to Jenniefer.

It would be a sight worth seeing.

*

Matt returned home none the wiser with snacks and drinks in rustling carrier bags, expecting only a quiet night in for his birthday. He could not have known that nothing would ever again be the same again as he put away what he'd bought in the kitchen, calling out to his girlfriend, who he thought was still in his room.

"Jenniefer! I'm back!"

Of course, she did not reappear and he went in search of her, knocking on the bedroom door before entering, just in case she was in a somewhat compromising position. He wouldn't have wanted, after all, to unduly walk in on her, as that would not have been very pleasant, though all he found in his bedroom was the controller against the wall, shoved off as if into a corner, and a weird stain on the carpet.

He prodded it with his foot, not daring to poke it with his fingers. What was that?

"I see you've returned."

Matt jumped and muttered a curse, spinning around as his heart pounded.

"Lindsay! Do you have to sneak up on me like that?

His sister scowled, her expression darkening, though he could not help but notice that her shirt was askew. Maybe if they'd been on friendlier terms, he would have said something about that to her but, as it was, he left it there, petty and quiet in his minor forms of revenge. That was about all Matt would do, however, taking tiny victories where they, at the very least, seemed to present themselves to him.

Jenniefer, however... Well, she was still nowhere to be seen.

"Where's Jenniefer?"

Lindsay smirked, cocking her head to the side.

"Dunno. Why don't you go look for her?"

Something twisted in Matt's chest, though it was a faded remnant of anger that another person may have felt in the same situation.

"Did you make her leave?" He shook his head, fingers twitching, though he was not the sort of man to tighten them into a fist. "Damn it, Lindsay, why do you have to go mess up everything? I didn't even ask you to come here!"

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