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Breeding for a New World

Part three of four

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Written by Arian Mabe (Amethyst Mare)

Commissioned by Pico_Cat

So, the cycle of impregnation and birth was set, allowing Greg and Cadence to understand all that was to come to pass with them. Their pregnancies escalated at the same rate as the first time, giving them three, maybe three-and-a-half, days of pregnancy between breeding sessions, though they managed them better than they had before. Sure, there was still a bit of a waddle in Greg's stride around the fifth breeding and pregnancy, but Cadence had adjusted to it more easily than he had.

His world devolved into luscious flashes of impregnation and breeding, the joy of giving birth there too, topping off the entire experience.

How the wall sucked around him, fusing, however briefly, with his skin when he was in the chair.

The secure sensation of the bonds gently holding him in place.

How the stretch of his backside grew increasingly with every breeding, testing the limits of his body – until it reached the perfect size.

Cadence too, well… She was a little more in-tune with her own body and had to pause while bathing in the half-sunk bath around the eighth breeding. She wasn't herself anymore and, frankly, “herself" wasn't someone she felt the need to return to, not in a hurry. It was just a way of being and her curiosity was perked, seeking a challenge, invigorated and enthused to see all that lay ahead of her.

“Everything's just…not sitting differently on me anymore, is it?"

She stood tall, water streaming from her bare skin, though she couldn't put the change in her physique down to solely her pregnancies. She was thicker, most certainly, and had more fat above her hips too. What was the most noticeable for Cadence, however, was the change in her breasts and buttocks, which shifted even Cadence's own perception of her body shape.

She could have looked in the mirror to take it all in, but her hands were the best judge of herself. Tracing her fingers down over her breasts, Cadence took a shuddering breath as she swallowed a moan, shifting her weight to her left leg. Her breasts were just so sensitive – and they were definitely growing a little larger with every pregnancy she went through, the nipples a little more swollen and almost puffier. That wasn't quite the right way of thinking about it, but the sensitivity when even air brushed over them was simply exquisite: something she wanted to investigate more of. The rise of her buttocks and breasts, in tandem, however, had given her a more defined physique, almost like an hourglass-shape – but retaining her softer curves.

It seemed the changes would not strip her entirely from how she had been but build on it in a way that best suited her.

It took over ten birthing cycles, however, for her hair to grow enough that she could see it was not her natural colour but bore an icy blue tint instead. That was not something she'd been anticipating, though it looked like her head was the only place on her body that hair returned to as her hips expanded too, bringing a sultry curve to her body that she hadn't realised she'd longed for. Eventually, nearing twenty births, her hair had devolved to a shocking blue, nothing at all like the smooth shades of brunette she had boasted before. Even sitting by the pool or in the bath, she caught herself running her fingers through the very short growth of hair over and over again, the lightly wavy locks of hair falling down to her mid-back as the birthing cycles progressed.

It was soothing, though she didn't need to be soothed.

The changes in Greg, however, well…they were more drastic. Cadence tried to mention to him how he was growing fatter – and not with pregnancy – and he brushed her off, choosing instead to talk about how much more he was feeling through his anal breeding sessions. That might have put Cadence off before, but things were different there. They had to explore different things in themselves, after all, and there was little for them to do while in the breeding program other than relaxing and talking. So, some things that would not have been acceptable elsewhere came out.

But she noticed, even if he sank into pleasure rather than inspect his own body. Over the course of twenty births, staggering out of his room every time on deliriously shaky legs, he grew thicker and fatter, his entire body larger. And that was in height too, something Cadence hadn't noticed about herself, though perhaps she was merely adjusting a little better than he was. It was hard to say as she observed his hair regrowing tinted auburn and then deepening to a rich ruby.

Greg had to have noticed that colour change, of course, but he didn't mention it to her, instead choosing to talk about things that could not truly be seen. After all, their breeding sessions took place in private chambers and neither truly knew what the other was going through, aside from what they chose to share aloud.

He had seen the changes, somewhat, though a girlish physique tickled a deeply rooted need inside him that he had never given due attention before. Greg was more a man of action and sensation than of introspection – and shutting off any worries with ecstasy was definitely one way for him to take him forward. Even as his hips subtly widened and his chest grew large enough to be considered obvious breasts, he leaned into it.

If it felt good, he wasn't going to allow it to have any precedence in his head, returning to the chair time after time again. After the eighth breeding, at least for him, a new control panel appeared in his bedroom, beside the chair, which allowed him to change his position in the wall. The wall, however, always sucked down around him – tall enough that he couldn't see what was happening below the waist but not stretching from floor to ceiling either – to trap him in place. The bonds were not always necessary, though often he preferred the security of them to being free. He needed something to brace against, something to keep him in place.

Different positions, however, brought with them new aspects of pleasure, whether he was giving birth or taking another breeding. Greg's moans echoed off the walls of his bedroom as he was fucked ruthlessly, the soft, hard length of cock driving into him as he used a setting to bring his legs up behind his head, offering a long, deep passage to be fucked. It had been a tough position to get into the first time, even with the chair rearranging itself (it was hard for him to say exactly how that happened when he only had a limited field of view) so it could support his legs in that position. After that, his flexibility seemed to increase, so it all came much more easily.

Cadence experimented with repositioning herself too, turning around so she was facing forward and down – kind of like what may have been called a doggystyle position before. It was tricky to name a position when she was in bondage, though she did away with her wrist bonds as she learned to look forward to the births and breeding sessions more and more. The cocks ploughing her, however, always felt as real as any other guy she'd been with before – though she did not have all that much sexual experience, just like Greg. It was hard to gain that experience in life when there was so much going on with the world, the expedition and exploring new planets.

Still, she relished in it, wondering why they had never tried a breeding program like that before. The only thing that could have made it better for Cadence would have been if she had her work there with her, though even she would not have wanted to work as intensely or as diligently as before. There was seemingly an awful lot more to life, in the end, than working her life away, early and late, never taking a break.

However, things changed when Greg experienced his twentieth birth, howling out his pleasure with a ragged gape of a mouth, not caring who heard him. There was nothing at all there that he had to be worried about anymore and he wholeheartedly gave his body over to pleasure, the heated glow swamping him in birth, though it never dragged him under. He was pleased too, and raved about it to Cadence, that he had managed to acquire more sensation, in the act of giving birth anally, even though he had a strange softness behind his balls too lately. It was as if there was extra skin and flesh forming there, though it didn't hurt, so Greg chose not to pay it all that much mind.

Stretched out on his back with his legs half up in the air, bent at the knee, he relaxed and waiting to be impregnated all over again, his toes curling a little impatiently. To his surprise, however, that was not to come to pass as the machinery whirred softly and the chair reformed itself into, well, just a regular-looking chair again, setting him down on the ground, free of the wall. He blinked, pausing there, sure that something else was coming, yet he was free to go and do as he pleased.

“Huh? Oh, come on…"

He got up, oddly steady on his feet and not at all okay with being left wanting, heading out to see if Cadence was going through the same. She was not there, however, and he dithered, wondering if he should go see her.

Yet Greg never got the chance to decide for himself as the wall and door blocking off her domed room from the rest of the complex slid down into the floor, hissing into the ground and sealing flush with the mechanics there. He gaped as he took her in, strapped into her wall and chair with her big, round, plump buttocks shoved up, practically in his face.

They were only in his face as Greg had instinctively closed the distance between them when he had seen her there, though it was not for him to worry about as he panted hotly and scraped what words he could from a throat that was suddenly very tight.

“Ah… Cadence?"

He croaked out her name as she squirmed, positioned with her body through the dividing wall as if she was kneeling and bent over at the waist. Her chest and stomach were supported by the parts of the chair that had reformed, leaving her hopelessly exposed. Her pussy was swollen, puffy and thick with desire, as if blood had rushed to her softly engorged sex, showing off just how much she had done, all she could take. It was not a part of her he had seen all that much of, for it wasn't as if they were bending over and inspecting one another most of the time.

“Please… Greg… I hear you there…" She moaned, raising her voice, shuddering and trying to rock back – but she was tightly bound, on her request and arrangement that time. “Please… It didn't breed me! I need you… I need you to fuck me, fuck me like you've never fucked anyone before!"

Her words came out too cheesy for her liking and, frankly, some of them didn't make all that much sense either. But she ached to be bred and not getting fucked and impregnated after her body had grown used to that, after every birth, was nearly ain to torture for her! Her pussy seared through with burning passion, dripping with her own arousal, her womb empty, so very empty.

And her breasts too… They'd started lactating, though it made sense that was to come. Maybe her body simply had not been able to lactate before, still developing and changing as the breeding and pregnancy cycles helped her physically. It was impossible to say and she moaned, wanting to grope and squeeze her breasts even as warm ripples ran through them, rivulets of milk trickling over her breasts.

Sometimes, when she was in the depths of need, moments seemed to stretch out forever – a kind of adrenaline pumping through her. Cadence whined and squirmed, more of her milk splashing down her breasts, though they didn't seem to need any stimulating or massaging to lactate in the slightest. Warm, liquid pleasure swilled through them, though her breasts were more than heavy enough, when she was standing, to pull down under their own weight, big and full and round.

“Mmmm… Please… I need it… Need it so badly…"

Greg was still there and reality beckoned her, even with a pair of milky tits to deal with.

Hazily, she moaned, clenching her buttocks, trying to look appealing to him in the small ways she could, bound as she was. Why wasn't Greg fucking her already?

Yet Greg was just coming to terms with his new situation and gladly grabbed his achingly hard cock, which had no problem at all in pumping up with blood at a moment like that. Cadence and her thick, curvy both, with the larger, heavier breasts, was everything he could have wanted in a partner, though it was not as if Greg was in much of a position to be picky either. He just wanted to experience everything, raging horniness flooding him, as if he wasn't truly seeing what was right there in front of him either.

But he knew exactly where Cadence was as his hands grasped the soft flesh of her buttocks and slid up to her wide hips. She was a goddess – and Greg did not yet quite know that he was turning into exactly that too. He didn't care, not as he ground his hardness through her swollen pussy, pushing through her folds to lube up his shaft for just a moment. He didn't really need to prepare all that much for penetrating her but, well, he wanted to be considerate, as wet as she already was. That was one thing, at least, which had stuck with him from being with previous partners.

“Ohhhh, yesssss!"

She hissed out her delight through a clenched jaw as the first thrust of his cock sent her spiralling into orgasm, moaning and rocking her hips, though it was simply luxurious to be trapped in bondage too. As long as she was getting what she needed, a cock inside her, Cadence was happy, her pussy clenching and rippling around him, so swollen and puffy with arousal. Truth be told, it always seemed puffy those days, even if it was at its most heated and swollen, of course, when she was being fucked or when giving birth. That made sense, at least to her.

“Mmm, yes, take me harder… Mmmph!" Cadence moaned. “Breed me… I need your seed insiiiide meee!"

She couldn't stop herself from squealing as he pounded her, his hips working furiously. There had to be new muscle growing in his body too, for he was stronger than he had been before, hips bouncing off her firm, round buttocks with every stroke. It was exhilarating to feel a real guy fucking her, the impact sound of his hips striking her ass rising to fill the room in a heady slap of flesh on flesh.

Oh, how she'd missed that!

Every thrust sent milk splattering from her tits, swaying back and forth with the rock of her body, yet she was not in control, not as electric sparks of pleasure ached deeply through her. it was as if her nervous system had abruptly become electrified, giving her so much more to lean into and long for, breaths hitching and catching in her chest. Everything was wet, from her pussy to her tits, slick with arousal, milk and a soft, light sheen of sweat that could not be denied, not even then. The business of sex and breeding, after all, was never meant to be a perfectly clean endeavour.

She needed something more from her breeding sessions, yes, so much more, hungry for all the breeding program could offer her. Yet she clenched and curled her fingers and moaned out her lust right there in the moment, letting it all sink in, from the light prickle of sweat on her skin to how her pussy could ripple and pull, methodically, along the length of his cock. It was as if her body, even then, was trying to milk Greg of his cum, yet she never would have been able to demonstrate that exact muscle control before entering the program.

She screamed out her orgasm, eyes closed as she lost track of reality for a few moments, his thrusts hammering into her. With a lewd, wet squelch, his cock sank all the way into her, his ragged howl joining her lust as, for the first time, Greg spent himself inside her. His cock ached and pulsed, throbbing as it sent spurts of cum deep, though not as much as when she was bred by the machine in the breeding program. Cadence would have been hard-pressed to say which she preferred, for the personal touch of having a real person there was hard to beat – while the machine could go on and on, for multiple rounds.

They both had their perks and Greg grunted as he pulled his softening cock from her, head spinning with the delirious, swirling pleasure of the afterglow. It had been a long time, or so it felt to him, since he had cum like that.

He helped her up once the chair had set her the right way up again, both of them moving more slowly that time as they headed to the bath. It was more than large enough for both of them and Cadence giggled lightly, giving him a little push as they waited for the water to rise around them, filled with a froth of bubbles.

“Well, that was something different," she all but chirped, offering him a teasing sliver of conversation and flirty lilt to her tone he had not seen from her before. “And look… I want to see you too, but I've been changing down here too."

Without any shame, for she couldn't see where that belonged in her life anymore, she stood tall and bent over, showing off the engorged folds of her pussy. Greg grunted and raised his eyebrows, cock throbbing all over again, back to full hardness. It was as if he hadn't just got off in Cadence's room, but, well…he couldn't be held responsible for having sex on the mind when he was in the breeding program very much for a good reason.

Cadence spread her legs a little wider, peering back at him to see if he was looking. Greg rubbed her hip lightly, checking if she was okay with his touch first, and slid his hand down and back between her legs, his fingertips lightly brushing her pussy.

That's what I need.

_ _

The thought leapt unbidden into his head and he blinked, sucking in a short, sharp breath. But he wasn't referring to her as something he needed to fuck, no, not in the slightest… He wanted something Cadence had and his brain crackled, as if there was static lurking there, struggling to comprehend the enormity of it. When it had come upon him so quickly, with no hint at all that something bigger was happening before he was there, in the moment.

He let her lean back into him so his fingers dipped, very lightly, into her puffy, engorged folds, damp with more than water from the bath. Greg held his breath as he slid his fingers through her arousal, his heart pounding as he heaved and grunted, though mostly just trembled in place. He spread his fingers apart a little, her slick arousal clinging to his digits, though they were not strong enough to prevent the liquid thread from snapping and splattering, lightly, back down against his hand.

“It really does…uh…" He blinked, shaking himself a little to come back to reality. “Um… It does look a lot fatter than before. And it's really…soft… Was it always like that?"

Cadence shook her head and straightened, lightly removing his hand from her flushed pussy.

“No, it's got a lot thicker and fuller in the last…hm… Maybe ten days especially? It's hard to keep track of everything when there's so much going on. Show me yours, maybe you're the same?"

Greg cocked his head at her. Well, it was not as if he had a pussy, so he wouldn't find anything unusual there. Mimicking her position, he turned around with his back to her and bent over, though not quite as far down as Cadence had. He just didn't feel like he had the balance, water lapping up around his thighs, the floor of the tub slippery and smooth. It wasn't meant to be stood in, not like that.

“Hm…"

Cadence poked and prodded at him, though it took the brush of her finger against his pucker to make him realise something was different down there. Things had been so strange since his breeding sessions had begun that it was tricky to differentiate one thought and change from another, why one thing felt different – and if something was even different in the first place!

“It's so thick and full," she breathed, pressing into the edges of it as if to show it more clearly to him. “It's puffy…kind of like a doughnut. Can you feel this?"

She rubbed her fingers around the edges, dipping into his anal ring as he gasped and moaned, legs quivering. Without thinking, he bent over a little further, as if he was presenting himself to be fucked. Sadly for Greg, Cadence wasn't able to do that for him, not as he had done for her.

Dipping her fingers inside his puffy butt revealed his ass was lubricating itself, though it was not the same consistency as her pussy and arousal. It was softer, spongier, puffy and begging attention. And his arousal was more fluid and more slippery, as if his body had evolved in just the way it was supposed to.

He grunted, shaking his head, though was helpless to do anything other than let Cadence explore his body and show him just how much he had changed. A light giggle broke her lips as she pushed her fingers, all folded together nicely, into his ass, murmuring as they disappeared, deeper and deeper.

“Mmmm… Wow, you're such a hungry girl," she teased him, though there was no ill-will behind it. “You need this, don't you? You need to be fucked in your ass-pussy just like I do."

He moaned as she shoved her entire fist in him, dragging it seductively back and forth while he tried to clench around her. There was nothing Greg could do to stop the push of her arm as it disappeared into him, a few inches up past the wrist. The stretch was incredible, though he couldn't squeeze back against it hard enough to stop her – not that he even wanted to stop her.

It felt too good, muscles twitching and pulling around her arm as she fisted him, grinding back and forth with a laugh on her lips. The thrust of her fist mimicked how he would thrust – or even how he had been fucked.

Greg's breath hitched and it was with that thought in mind that he climaxed, shuddering and trembling bodily, moan after moan rolling over his lips. He groaned, leaning heavily on the side of the tub, his ass wet and slippery around her fist as she kept fisting him, thanking him, in her own way, for giving her the breeding pleasure she'd needed when she hadn't been impregnated again. Greg, his balls aching deeply, had at least been able to sate that need of hers.

“Mmmm, that was a start, but you should head back to see if the machine will impregnate you again," Cadence advised, withdrawing her fist and slowly sinking into the deep warmth of the bath. “You can't go through your next cycle of pregnancy without being impregnated, after all. I think you were meant to come out to breed me, but you need to go back."

Dizzy with orgasm, he stumbled out of the bath, though he had not yet taken the time to clean him off properly. Slipping into the chair in his room, he let the door slide gently closed after him, though there would not be any need for privacy like that anymore.

In the chair, he let it take him back and up, as if in a dream, bonds holding him firm as he was turned on his left side, his right leg pushed up closer to his chest, knee pointing to his neck. It was an easier position to get into, now that he was more flexible, and he moaned lowly, shuddering in place as the machine bred him all over again. That cock felt thicker than ever, though it was still the right size for him, his ass-pussy all the more sensitive for the gentle stimulation Cadence had put him through. After all that, he'd be the one thanking her for giving him a new lease on pleasure!

“Ah, yes… Ohhh!" He moaned, reverberations running through his whole body as he was fucked, fingers curling around the arm of the chair he could reach. “Yes… Harder… Yes, fuck me… Ohhhh!"

He wanted to say that he was looking so very much forward to being pregnant again, every sensation tickling deeply up inside him. He moaned, trembling in place, squeezing around the breeding phallus, revelling in how he could even feel his backside trying to close up after the toy retreated, allowing it to stretch him all over again. Thrust after thrust rocked through him as he leaned heavily into his bonds just for some support, the harder wood of the chair bearing up into his left side and particularly his left hip. Yet even that minor note of discomfort was not enough to drag his attention from the ecstasy throbbing through him.

Orgasm after orgasm took him as the breeding machine fucked him – well, at least that was what he supposed it was. He had never heard anyone enter the room with him, while he was being fucked or in the chair at all, yet it was still kind of tricky to say, one way or the other, as the wall was always in place. Someone could move around it, of course, if ever needed, and he was not isolated there.

Soon, however, the walls to their chambers would be opened up while they were bred, allowing them to both see one another and revel in each other's cries. The machine finally ground deep and he grunted as his body expanded, or, at least, it felt like something was bloating up inside him, his belly already fatter and rounder than it had been before. The breeding machine pumped load after load of cum up inside his ass-pussy, to the point it was no longer possible to differentiate at all from his arousal fluids and the semen, though it was not necessary either.

All he had to do was languish there, allowing his body to be impregnated and taken lusciously, time after time again. And that was the kind of existence he had never even realised he'd been hunting for. As he rested there, heaving in the afterglow with a fat, swollen feel to his stomach, he flicked his attention down to his chest, where a slick, wet sensation was marking his, well…his breasts.

Lactating…just like Cadence. They were more alike than he'd realised, though the milk from his body was set to pour forth even more thickly and creamily in time to come. They both had plenty to look forward to.

After one-hundred births, Greg relished in the ability to sprawl out on the “beach" in their Garden of Eden, though things were very different. She still enjoyed the chance to breed Cadence, but it was obvious her body was no longer male anymore – and that was one reason she had felt a little disorientated as her body had changed. It was not that she wanted to be a man or a woman or other; gender didn't mean anything to her there. But Greg knew that how she was, like that, well… It just felt right. And that was okay too, even if it took Cadence a few days to get used to her new pronouns, once Greg had asked her to change them, after all.

She pointed out to Greg, however, that she was going to have to think of a new name for herself – if she wanted to, of course. There was always a chance to reinvent herself and find what suited her, something Cadence was already considering for herself. “Cadence" no longer felt like her and she was ready to see what changes in her life and even her name too could lay ahead.

Greg moaned, lying on her back for yet another breeding session, though the chair was set up like a bed that time, with a little padding added to it. She didn't even question how that had come to pass, as it was at least more comfortable for her, leaning into her pleasure even more than before.

“Yes… Fuck me…"

Although one breeding session merged into the next, so did the transformation and changes rippling through her, gradually changing her body increasingly with every pregnancy. Over time, she'd gained a richly, dark red bob, her hair having grown down enough that it was thick and luscious, though that was by no means the scope of her full transformation. It was far longer than it had been while she'd been “just" a human.

“Mmmm… Oh!"

She groaned, spreading her legs wide, her fingers curling around her thighs – or as much as they could – and digging into her flesh while the machine fucked her. The wet slap and slop of the breeding spire plunging into her body filled the air, though she could not quite see it. She had, however, been able to see it while Cadence was being bred, as the walls to their dome-rooms retreated into the floor when they were being impregnated. Sometimes, maybe every tenth breeding, Cadence was impregnated by Greg too, though it was hard to tell if she got there in time for Cadence to simply not have been impregnated yet or if it was designed by the breeding program. Her cock was not as large as the ones in the program, though still seemed lie more than enough to please Cadence.

Her body, however, was primed for pleasure, with a reddish hue glowing upon her sin, her backside a little peachier in shade, though it was full and round. The flesh jiggled with every touch, soft and thick, though she rarely had her own hands on it. It was Cadence, of course, who got to see the soft ripples running through Greg's luscious flesh as she walked, though it was all her in the breeding chamber that time.

After all, it had never been all that much of a bedroom, she had to be honest about it. She moaned aloud, lips parted, relaxing into the moment as she was pounded, losing track of just how many orgasms she'd enjoyed there. Her breasts rocked lightly with the shift of her body, every thrust overpowering her, her dark nipples pert and all perked up, as if they were trying to draw some kind of attention to themselves.

Yet Greg was just there in the moment, letting it all roll through her, her light pink eyes, which were still shifting in shade, glistening faintly with emotion. With her eyes half-closed, she relished in the moment, allowing it to roll through her, every grunting breath breaking her lips with ardent bliss.

Across the way, Cadence lay on her back with her exceedingly flexible legs pulled back behind her head. The stretch of her flexibility was truly impressive and Cadence kept trying out new, wonderful combinations with the breeding chair, pushing her body to any limit she found for herself. After all, there was simply no reason at all for her to ever hold back, not ever again.

“Mmmm, yes…"

Her body shifted slowly, though her breasts were much larger than Greg's – as, of course, she had started off with breasts in the first place. That had to play into it, somehow, and they were always leaking with milk, sometimes in thicker streams than others. Her milk was creamy and thick as a general rule, however, while Greg's tended to trickle. If Cadence grabbed and squeezed Greg's breasts, however, she could squirt milk from them, which she took a seductive kind of delight in doing.

“Mmm, yes…"

She swept her freed hands down her own body, though the temptation to hold on to her ankles while she was bred was still there, trying to grind on to the cock fucking her, as she always did. She just couldn't stop herself, not when pleasure beckoned, though the chair almost seemed too small for her by that time. Even if she hadn't measured herself, it was easy to see that both she and Greg had grown, perhaps around six feet in height. Maybe a little taller?

She didn't mind, no, not at all. Not as she grabbed her breasts, leaking and dripping with milk, the light blue nipples complementing her shimmering skin tone. She couldn't quite tell what colour her skin was shifting to, though it looked like a kind of blue, so far. That could become clearer in time.

“Mmmmm… Yes… Make me full again!"

She moaned, the apparatus speeding up and up, though she wasn't expecting the chair and wall to clunk and turn around while the cock was inside her.

Cadence moaned, curling her toes, and looked back, upside-down, catching sight of Greg not all that far away, her breeding chair having rotated too so Greg could see her too. Greg was in a better position to be fucked that time, on her back with her head picked up and twisted to the side to look, but she gaped at how lewdly Cadence had presented herself with her legs pulled all the way back.

Even though they were barely in their own minds, they still had enough presence in their own reality to realise the clunking and grinding around them was their sleeping chambers rearranging themselves. The floor opened up before the chairs, cranking them along as if on a hidden, wheeled mechanism, or a pulley system, but it didn't matter to either of them in the slightest as the rooms they had slept in, and been bred in, disappeared entirely.

“Ohhhhh!"

The rooms simply wouldn't be needed like that anymore, no, not at all. Cadence howled as orgasm gripped her and she squeezed her breasts without even thinking about it, pulling at her nipples and sending thick milk spurting everywhere. It splashed up to her neck and trickled back down over her tits, running between them, though her skin highlighted the milky glow beautifully.

As they both screamed in climax all over again, their sleeping rooms reconfigured themselves into a single room, cocks ramming deep into them to spend their load right then and there. As semen emptied into them, pumping up their wombs and giving them that full, overbearingly weighty feeling they both craved, the chairs set themselves back down, facing one another, as if they were merely seated there. With the bottom part of the seat out of both chairs, however, they still sat with their bodies impaled on the thick shafts.

“Mmmm… Oh… Wow…"

Greg's head hung forward as she tried to come to terms with what had happened, blinking a little, disorientated by how everything had changed around her – and so quickly to. The walls had slid down too – or more so melted away as if they had never been, for their impregnation sessions were never again going to be the same as before. Without the breeding tools pulling from their stretched, yearning holes, the walls came down again, so they couldn't see what was going on behind them, and they were tipped forward into doggystyle position.

There was only one bed left in the room, yet they didn't yet get the chance to use it, not as the walls slipped up a little higher around them, blocking their view of the main door to the program centre. They hadn't been out of it since entering – and hearing the door clicking open was foreign to them.

Greg blinked, huffing and panting, trying to rock her hips back.

“Mmm… This… Mmmmm… Oh no!"

She cried out in loss as the dildo withdrew from her, the sex machines whirred and clicking as they folded back neatly into the floor. Greg squirmed and whimpered – yet she was not to be left out when a pair of hands landed on her.

She stilled suddenly. How were there real hands on her? Cadence was right there in front of her! That didn't make sense, no sense at all, yet the real human behind her didn't say anything at all.

No… They knew their job as well as Cadence and Greg understood theirs and Greg howled as he was finally plugged full with a real cock in his ass-pussy. His puffy, dripping sex tried to grip the shaft as it thrust deep, though there was no resistance there at all, only delicious friction. Greg's cries rose as she was fucked and bred as she had craved, without even knowing that was changing in her mind.

“Unff… Mmmph…"

A masculine grunt sounded behind her and Greg locked eyes with Cadence as she too moaned and shuddered in place, the bonds on her wrists holding her into the adjusted chair. Clearly, she was being fucked too, though Greg hoped very much so that she'd still let her fuck her with her breeding sessions. Her cock didn't get all that much use anymore and, outside of her time with Cadence, she didn't really think about it all that much. It just didn't seem necessary, not really.

The heat of human flesh against her had her swooning, how deep his voice was, his palms even rough against her backside. He growled as he pounded her for all he was worth and Greg moaned, hoping he understood exactly what her wordless cries of pleasure meant. They were all she had, words failing her, when she just wanted to tell him, to beg him, to keep fucking her until the end of time.

SMACK!

His hand connected with her backside in a sharp slap, sending her flesh jiggling, and Greg moaned. Oh, that was good, so very good, and he did it again, raining down a pleasant hail of blows, bouncing off her flesh as her backside warmed to his touch.

But she watched Cadence devoutly, for they were both in it together, her own partner fucking her rampantly. Cadence's lips parted, even her face a little fatter and fuller than it had been when they had begun the program, though just how hard she was getting bred was obvious to see in the jostling, jerking shifts of her body. Yet she was beautiful and Greg shared her climax right along with her, one of them being fucked in the pussy and the other in her ass-pussy. Either way, they would be round with pregnancy all over again after that, looking forward to the overwhelming, heated pleasure of the birth itself.

The people fucking them, their partners, left before the chairs released them and the walls retreated: anonymous. Greg liked that and stumbled to Cadence, hugging her tightly, their breasts pressing together as a little of her milk trickled on to Cadence, though neither noticed.

“Mmm… This…" Cadence moaned, swaying against her, though Greg held her as steady as she could. “This is amazing… I just want more… More men… Taking me. Do you want that too?"

Greg groaned and nodded, not yet trusting one another to speak. There was another pregnancy cycle to go through, looking after and helping one another, yet she was already ready to be fucked and bred again, her body aching deep inside, right down to the core of her being.

The cycles came quickly and, as they went through hundreds of them, their need grew more and more. From one hundred, they escalated sharply to two hundred cycles, their lives settling into a routine, though time had no meaning for them in then.

One thing that changed, however, around cycle three-hundred-and-fifty, was that they used the chair to satisfy their addiction to sex – for who wouldn't want more sex, even when they were already pregnant? They hadn't had the need for it before, yet their bodies trembled with a deeply set need that simply could not be satisfied through any other means. Even fucking one another, admittedly, didn't match up to the lust of being fucked by a partner, even if they couldn't see them, the dividing walls still raised and in place when they were being taken.

Greg's features changed more and more, grinding through four-hundred and then five-hundred birthing cycles. She became more reptilian – and then draconian, for she looked like somehow who had stepped out of a fantasy novel with small horn-like growths around her jaw and the back side of her cheekbones, along with two horns rising, slowly, from her nest of red hair. A tail protruded, about two-feet long, around pregnancy seven-hundred-and-eighty, though would grow, surely, to a full, twisting length in time.

Her skin didn't quite remain soft, however, in her transformation, showing the edges of scales, though they would become more defined in time. Her skin was definitely red, however, even if it darkened day by day, her breasts and ass outclassing the rest of her body as they expanded. Sometimes, Greg wasn't even sure how she was able to walk straight when her body was that large, but she managed it somehow, a sway in her step.

Cadence was not changing in a draconian way, but had a horn rising from her forehead, neatly spiralled, a light coat of blue hair shivering over her, though it was thickening slowly. Her face changed, expanding out as Greg's had, but not gaining the harder, reptilian edge around the nostrils that she had. No, her face was softer and more elegant, her lips velvety and flexible, showing unicorn-like features – if the horn on her head, of course, was anything to go by. Her blue hair spilled down her neck in a fluttering swathe, though the tail protruding from the base of her spine was new, thick and full with long strands of soft hair.

When they were not naked, standing tall at over seven feet in height, they had some maternity clothing to wear, though it was always revealing and more like lingerie than anything they could wear out. Cadence's preference was long, flowing babydolls with accommodations for her stomach – and her much thicker figure, her ass and tits even larger than Greg's swaying and pulling her weight a little off-balance even when she was merely walking.

They spent plenty of time together, however, and, on the bed, she lay on top of Greg, straddling her head lightly as she rubbed Greg's inner thighs. Only, that time, Cadence noticed something had changed.

“You know… Greg…" She paused, pressing her hand flat on her bare crotch. “Uh… Your cock is gone. And…"

She slipped her fingers tenderly between Greg's legs, spreading out a new hole, the folds of Greg's new pussy welcoming her touch. Panting heavily on the bed, her legs eagerly spread for Cadence's touch, Greg moaned.

“Ohh…"

“Yes, mmm…" Cadence giggled at how forward she was. “Look…"

She slid her fingers into Greg's fat, juicy pussy and the transforming dragoness moaned, rocking her hips up, toes curling, even where they were tipped with shorter claws by that stage. Claws, however, were not something they cared for too much, even if they did catch their attention when they snagged in the sheets. Greg licked her lips, her tongue slimmer and darker than it had been. That said, there were parts of her that had darker skin now too, where the softer flesh, like around her nostrils and inside her mouth – her pussy too – was exposed.

Not that she minded, not at all. Grinning, Greg pushed away from Cadence, wanting to put on something of a show for her, and slipped into her chair as she was sucked back into the breeding wall, on her back that time, legs hooked up and spread lusciously.

“I've got one thing to tell you," she said, moaning as her juicy pussy was roughly penetrated, though her attention was on Cadence. “Then sit on my face, okay? I want to eat out your pussy too…"

Cadence obliged, standing over her, legs trembling as she half-sat on to Greg's face, though not low enough that she would have hindered her ability to breathe. Or even to speak, for Greg had said she'd wanted to tell her something. It was often hard to follow one line of thought when their lust was so apt to spike, all without warning.

“What is it, Greg?"

“It's not Greg anymore… Ohhh…" Greg – or not-Greg – forced out as the wall pulled up higher, allowing a human partner into the room to breed her, all without Cadence being able to see who it was either. “It's Georgina!"

Thus, Greg became Georgina and she pulled Cadence down hungrily on to her face as she lapped up into her pussy, her tongue curling and pushing up eagerly inside her. The dildo pulled out, replaced with warm, living flesh and a pair of hands gripping her thighs, digging into them and sliding around to her thick, round backside, adoring Georgina's body. She needed more than to have her pussy stuffed, after all, though it was mostly human partners rather than the machine and dildo by that time (human partners, of course, could not always visit to attend to their needs with how random they were).

It was the first time, however, that her new pussy was getting taken for a ride and she orgasmed many times over, trying to buck her hips up to her new partner even as he pinned her down, groping and squeezing her voluptuous behind. Georgina moaned openly, drooling as she was fucked, the thick length stuffing her full, even as she squeezed around him.

She needed more – and her new partner climaxed quickly inside her, sending a hot rush of cum deep up inside. Yet that was not the end of it, oh no, not by a long shot, not as he thrust and thrust, huffing and grunting, staying hard even through orgasm and afterwards.

“Mmmph… Yes… Please… Ohhhhhh," she cried out, her tongue hanging openly from her mouth. “Please… Fuck me!"

Georgina snapped the last two words as if they were a demand, though she was hardly in any position to demand anything. Her slick, wet sex tried to clench hardly, though he thrust powerfully, spanking her ass and letting her flesh jiggle with each and every resounding, bouncing smack.

Yet she wanted more, shuddering with the encroach of climax, warm bliss swamping her, though Cadence was right there in front of her too for her to focus on. In that position, Cadence was able to hump and grind her pussy into Georgina's mouth, the half-transformed dragon-creature lapping eagerly into her cunt, her cries muffled. Yet anyone present knew quite clearly all that Georgina wanted, everything she craved, her pussy stuffed and fucked until her first partner had climaxed six times over.

That was not enough, however, and another was sent in – and then another. Each breeding came with different nuances to it, the second partner stroking her skin gently and gripping her hips while the third powered into her with rough, claiming strokes. She took them all as if she had only been made for their cocks, Cadence climaxing on her mouth as a rush of honey dripped over Georgina's mouth. Never had she seen Cadence climax that hard, not when they were together, and her heart leapt at the sight, heat flooding her, toes curling.

She stayed there, locked into the breeding chair and wall, until she had been fucked twenty times over – well, climaxed inside twenty times. Cadence could have, possibly, seen who had entered the chamber with them, but she knew the rules and had no wish to break them. The walls were there for a reason and neither wanted to break the anonymity of those who had come to service them.

So it was that Greg became Georgina, finally released from the chair and the wall, her belly huge and swollen. Cadence willingly wrapped her arms around her, their bellies rubbing softly against one another, holding one another in a tight embrace, the only ones they needed in the whole world.

In the breeding program, they had more than found their solace.

Continued in part four of four…