Alien Breeder [Alien Broodmother TF]

Commissioned by SpiralTrance000

Dr. Cara Lynd is excited to examine a crashed UFO in the Arizona desert. All her life, she’s dreamed of meeting aliens, but she could never have dreamed she would be abducted by them and transformed into their willing breeder.

~

The sun blazed down across the empty stretch of Arizona desert, baking everything under its relentless gaze. Dr. Cara Lynd squinted through her sunglasses as she stood on the ridge, staring at the object crash-landed in the dustbowl below. The desert winds whipped around her, rustling her dark hair that had long since escaped the tidy bun she’d arranged earlier that morning. The sand bit at her ankles, but she didn’t care. She couldn’t remember the last time she felt her heart race with excitement like it was now. This was it. This was the moment she had dreamed of her entire life.

Half buried in the sand was a twisted pile of metal and chrome; the damage was extensive, but there was no denying what it was: a UFO. Real, tangible proof that humanity wasn’t alone in the universe. Cara swallowed hard, resisting the urge to run toward it like a child opening a long-awaited gift. Her fingers twitched in anticipation and it took all her self-control not to openly weep in awe. The crash had been reported days ago, and she and her team had driven for hours across the remote desert to reach the site, but it felt like a lifetime.

“Well, there it is,” murmured Dr. Paulson, her second-in-command. His voice pulled her from her reverie. He adjusted his cap, looking far less enthused than she was. The others gathered behind them, murmuring in low voices, setting up equipment and preparing for the investigation. The group were serious and matter-of-fact in their demeanour. Cara simply couldn't understand their attitudes; they acted like this was just another archeological dig! Not the find of the century. 

She took a breath, inhaling the dry desert air. Her large chest rose and fell, and she watched as Dr. Paulson did his best not to stare, as always. She didn’t understand him at all. It was obvious he was attracted to her, as most men were, and yet she never got more than a single date. One man had told her she was too much, that her passion for space bordered on obsessive, but Cara didn’t see the issue. She had beautiful tanned skin, luscious hair, full lips and an ample bosom; shouldn’t that be enough? 

Cara often felt a quiet distance between herself and her team. It wasn’t that they didn’t respect her—if anything, they admired her brilliance. But she knew her awkwardness sometimes made things… difficult. Conversations that came so easily to others always felt stilted and forced for her. She was more comfortable with data and hypotheses than with casual small talk, and even now, as they approached the ship, she could sense the quiet divide. She shook her head free of such thoughts. Today wasn’t about her disappointing sex life; it was about the aliens she now had proof existed. And maybe, just maybe, proof that one day…she might meet them.

“Alright,” she said, her voice steady despite the thrill racing through her. “Let’s get to work.”

She moved quickly, heading down the ridge with the others following behind despite being the leader of this expedition. They walked a few paces behind, smiling and chatting quietly. But that didn’t matter. Not here. Not now.

Her boots crunched against the sand as she neared the crash site. The ship was enormous up close, even more massive than she’d expected. Its surface shimmered under the sun, reflecting light in ways that defied explanation—smooth, metallic, with an unearthly sheen of green to the metal that was unlike anything she’d seen before. She reached out, her hand hovering just above the surface, fingers trembling slightly. There was a part of her that was afraid to touch it, that it might disappear, an illusion. 

“Dr. Lynd,” Paulson called from behind her, setting up equipment, “we’re ready to start the scans.”

Cara nodded, stretching out her fingers and brushing against the metal. It was mysteriously cool despite the baking heat. Her heart fluttered and she turned back to the others; it was time to start work. The instruments hummed, sending out waves of data as they scanned the ship, and she watched the screens with rapt attention. Elemental structures that had never been discovered before, entirely new alloys, fascinating! 

Cara couldn't help but wonder about the aliens who made this vessel. Could they still be out there? Would she ever meet them? To speak with them and learn from them was her greatest desire. Perhaps, if they came back, they might even take her with them. The thought had always lingered in the back of her mind—she had never quite felt at home here, on this planet. No matter how much she tried to fit in, there was always that sense of not belonging, of yearning for something more. Maybe the aliens would understand. Maybe their world would feel like home.

“Dr. Lynd!” Paulson’s voice jolted her from her thoughts. “Dr. Lynd!! Look!”

Cara looked up and dropped the tool she was holding. There in the sky was a perfect copy of the crashed vessel, only this one was perfectly smooth and undamaged. It flew silently, explaining how it got so close without being noticed. The saucer-shaped ship hovered above them, little lights blinking on its side, and Cara felt her knees weaken.

“They’re here…” She breathed. Maybe she was about to meet them! 

AQ beam of light shot from the bottom of the saucer and encased them all. The rest of her team were screaming, flailing wildly as they ascended toward the flying ship but Cara was calm. No, not calm, but she did accept her new fate. Even if these alien visitors weren't friendly, at least she would have met them. They approached the bottom of the ship and a blinding light engulfed them. Cara could feel her molecules buzzing as some sort of transportation beam moved them. A moment later, she found herself in a strange room resembling a strange mix between a laboratory and a hotel room. Half the room was filled with chairs, a bed and even a strange potted plant. It was all mismatched, as if taken from random places and a thick pane of glass separated it from the laboratory section of the room. It was like a human zoo and Cara and her team were the exhibits. 

“Oh god, we’re going to be dissected.” Dr. Paulson whimpered. “We’re going to be probed and experimented on…”

“Probed?” Cara breathed, she couldn’t help it, a shiver went down her spine.

Probed by aliens, made to be laid bare and exposed to these superior beings…she was ashamed to realised the idea turned her on. Just a little. But she quickly hid it, there was no way her team could understand, especially not now. The door to the laboratory opened and in walked several figures. The rest of her team shrunk back in fear but Cara boldly stepped forward and pressed her hands to the glass. She wanted to get as close as possible. 

They were humanoid but so different at the same time. It was as if a humanoid body had been stretched out and lengthened in every way. The aliens had dusky blue skin and large black eyes that didn't seem to blink as they came close. They were tall and thin, with long elegant necks that must have been almost three feet in length. Their fingers, too, and the digits seemed to curl more than human fingers could. So nimble and long, she could only imagine what hands like that could do. A thick tail swished behind each figure, the tapering to a thin tip at the end. They were the most beautiful things Cara had ever seen.

“They’re monsters.” Dr. Paulson whispered.

“Horrifying.”

“What are they going to do to us?”

Cara could only shake her head in disbelief, how could they not see the beauty of the creatures before them? Especially now that they were close, leaning down to examine her with those with curious eyes. Despite being pitch black and pupilless, she saw no malice in them; she could see their interest and passion, the same as hers. She pressed herself closer to the glass and smiled. 

“This one is female.” The alien closest to her said and Cara blinked in surprise.

“They speak English?” Dr. Paulson said in confusion, “How?”

Cara glanced around the room, trying to figure that out herself. The English was perfect, missing any hint of an alien accent. Yet there was a delay when they spoke and a strange gibberish muffled beneath the words.

“I think they have some sort of universal translator in this ship.” She mused. “They are speaking their language, but we hear ours and vice versa…”

“She is smart too.” The alien spoke again with a nod. “That is a boon to our cause.”

“Your cause?” 

Cara was instantly fascinated. The Alien leaning over her continued to study Cara long with her huddled, frightened coworkers while the other two attended to several advanced-looking machines. The walls hummed and whirred, and Cara was sure they were examining each of them with some sort of hidden scanner in the walls. She could only imagine why. 

“This one is male, as is that one.” The tallest said, pointing to Dr. Paulson and another scientist. “The other is too old for our uses.”

“I knew I should have retired last year.” Dr. Mira trembled. 

“What of the curious one?” Said the alien before Cara, still regarding her curiously. “Based on my research of this planet, she is well developed.”

It was hard to tell with their huge, solid black eyes, but Cara was sure he was staring at her chest. She didn’t know how to feel about that. 

“She will be perfect.” The tall one concluded. “We will keep the rest just in case the procedure isn’t successful. More samples can never hurt.”

“Samples?” Dr. Paulson stammered, “We’re doomed.”

“What do you want with us?” Cara asked, getting as close as the glass would allow her to the alien studying her. 

“Your chromosomes.” It replied, and there was another frightened squeak from one of her colleagues. 

“Well…I think we should at least introduce ourselves if that’s the case. I’m Cara.”

“My anime would be unpronounceable in your tongue, you may call me Alpha.”

“Well, Alpha…what exactly are you planning on doing to us, to get our chromosomes?”

“Are you going to kill us?” Dr. Paulson cried, and Alpha looked briefly bewildered. The other aliens had a strange, trilling sound that she took to be laughter. 

“No, of course not. As a male, you are useless to us anyway. You shall be returned to your planet momentarily once we are sure we do not need more of your kind.”

Alpha straightened up and pressed a hand to the glass. A small opening appeared, and before Cara could think, one of those long limbs reached inside and gripped her by the arm. She was quickly tugged out, and the opening closed, leaving her colleagues back in their strange pen and her out in the library at the aliens' mercy. Alpha’s hand was warm against her and now that she was on the other side she could get a real, up close look at them, or rather, him. The aliens didn't seem to wear clothes, but it appeared they were humanoid in another way. Cara’s face burned bright red, and she tried not to stare at the length between Alpah’s legs. It wasn't even hard, but it was already as long as an erect human man’s would be. It seemed that along with their height, this species was taller in other ways. 

“Several generations ago, our species, the Nixen, experienced a freak genetic mutation,” Alpha explained as he half-dragged, half-led Cara over to a large table in the centre of the lab. “Our females became ill, those who survived could not bear young, and our numbers diminished greatly. The only way we were able to survive was through enhanced cellular mitosis.”

“You’re…clones?” Cara said, grateful she took a minor in biology all those years ago. 

“That is correct, but our genetic material degrades each new generation.”

“Like making a copy, of a copy, of a copy.” 

“That is correct, you are an intelligent being. For a human.” Alpha praised. “That makes you all the more suitable for our needs.”

“My chromosomes…”

“Yes, we wish to make you into the first breeding Nixen female in generations,” Alpha said. 

Cara’s mouth went dry; these aliens planned to transform her into one of them. Then, using her as some sort of broodmare to breed a new generation of alien babies? The idea sent a shiver down her spine; she was frightened but also ever so slightly aroused by the idea. While the idea of being made to breed was sexy, especially if it meant getting to know these aliens so intimately, she couldn’t just give up her whole life! She was a scientist! As beautiful as she was, she couldn’t just give up her mind and work to breed!

Alpha grabbed her by the hips and hoisted her up onto the table, for the briefest of moments, she could see past the alien’s shoulder and locked eyes with Dr. Paulson. He was white as a sheet, but there was something else, he looked…relieved. At least he wasn't the one they wanted. A scanner blinked and beeped over her as Alpha secured her to the table and began to slow process of cutting off her clothes. 

“Yes, mammary glands are above average size, she is young with several years' worth of good breeding left in her, very fertile. She is perfect.” The Tall Nixen mused. 

Years. He just said years of breeding. 

“Is that why that other ship came to Earth?” Cara asked. Maybe she could stall them at the very least.

“Yes,” Alpha replied as he prepped tools on a nearby table. “That was one of the many teams sent out to find a viable species for the transformation process. Unfortunately, that particular vessel crashed. The Nixen on board were able to jettison to safety of course, but we couldn’t clear things up before your government found it.”

Cara looked over at her team as Alpha talked, none of them looked like they were trying to escape or help her. In fact, they were all just standing there watching her. She sent them a pleading look, surely they weren’t just going to let this happen without even trying to stop the aliens. Dr. Paulson sent her an apologetic look, and Cara felt anger burn in her veins; they were happy to two her under the proverbial bus if it meant they were safe. They were probably hoping this strange transformation process would work so that the Nixen would let them go! Those selfish bastards! She wiggled against the restraints, trying to ignore how a part of her found them hot. She was torn between her hidden desires, her fear and her curiosity about the Nixen bending over and examining her. Alpha finished cutting away her clothes, and now she was naked, spread eagle and totally exposed. She shivered against the cool air of the ship, and Alpha patted her arm with his long-fingered hand.

“The process will warm you.” He said almost soothingly. “And it while it shall be slightly uncomfortable, we have done all we can to make the process painless. We do not wish you any harm you see. This is for the good of our entire species. As the first new brood mother, you will be treated with the utmost respect and reverence.”

“Can’t we talk about this?” Cara asked, “Get t-to know each other or something? Do we have to-what is in that!?”
 The tallest alien held up a large needle filled with a strange, oddly thick looking liquid. 

“The first shot to start the mutagenic process,” Alpha explained calmly. “Just a little sting, then the electrode will stimulate specific parts of your body to continue the change.”

“E-electrodes!?”

They were being attached to her now by the third, silent Nixen. They were being placed all over her body: at her hips, shoulders, across her nipples and stomach, even at the sides of her temples. She couldn’t help but shudder as the ones on her nipples were pressed down. Her nipples hardened in response no matter how much she willed them not to; the stiffness made the sticky substance used stretch her skin, stimulating them further, and she wiggled, trying to hide the odd mix of discomfort and arousal. She winced as Alpha approached, taking the needle from the other alien and moving it toward her. He held it right above her stomach and pressed the plunger down. Cara winced, the pinprick of pain was quickly washed aside by the feeling of the liquid being pushed into her veins. She could feel it, a strange warm sensation spreading through her body as her racing heart beat faster, forcing the formula to spread at a breakneck pace. 

Oh God, she was about to be transformed into an alien breeder! She wiggled as the warm feeling spread through her extremities, making her fingers burn as the muscles there began to stretch. It wasn’t painful, more like stretching a muscle after sitting down stiff for too long. She could feel a similar sensation in her legs, and they too began to grow, her restraints slowly pulling away as she got taller to keep her spread eagle even as as she grew.

“Oooooo, oh this feels so strange!”

She looked at her colleagues, who all looked horrified as they watched their once-hot boss turn into some sort of strange alien creature before their very eyes. She could see her creamy skin turning that same shade of dusky blue that Alpha was. It started at the injection sight and then spread across her whole body, making her skin tingle as it went. Then, she let out a gasp of shock and pleasure as the electrodes at her chest and nipples began to buzz. The electrical current was enough to stimulate her skin and make her breathless but then she felt something else. Her breasts were growing, becoming even more full and round to match her new taller proportions. Beneath them though, she felt the skin becoming more sensitive and soft as a second set of breasts began to grow. 

“T-two set of breasts! Ohhhhh…Oooooh wow, that’s so…”

She didn't want everybody to know how good it felt, to feel her second set of tits coming in, but she couldn’t help it! Those electrodes stimulated her, making it impossible to think of anything else. She was almost sad when they finally stopped. Her new breasts had their own diamond hard nipples and they stood to attention like little peaks on her lower chest. 

Her neck began to stretch, and her eyes watered as they grew, too. She wondered if they were totally black yet. Her vision blurred as her lashes grew and her eyes adjusted to their new shape. Then, there was a cracking sound as her spine elongated and her new finger bones grew in. It was such an odd sensation that she was torn between the pleasure of feeling her body change and the strangeness of it all. Then came the pressure at the base of her spine, she groaned, hips bucking as it got stronger and stronger. 

“Her tail, quick,, get her up.” Alpha ordered and the other two undid her restraints, allowing her to sit up on the table. 

“Hnnnngh! Oh, I-I almost feel like…like I have to push it out.” Cara groaned. 

“That’s alright, the electrodes will do that for you.” Alpha patted her, “Here, on all fours. It’ll feel better.”

Cara obeyed, too caught up in the strange sensations rushing through her body. She balanced on all fours, letting her four heavy breasts hang beneath her. She could feel them swaying as she arched her back, grunting as she felt her spring growing and her tail forming. She raised her face up. She could see her human team huddled, watching with wide eyes. How must she look right now? Moaning on all fours while becoming this new alien creature. Her pussy was moist as the heat in her body seemed to focus there. With one final shudder, her tail was formed, long and thick with a slight bulge at the end just like the other Nixen. She was wet and her body so overstimulated and hot she didn’t know how to feel. 

“You look incredible,” Alpha said excitedly. “The first Nixen female who can breed! You’re such a sight, a technological marvel! And…and beautiful.”

Cara wasn't sure she felt beautiful. She stared down at her strange blue form from a new alien perspective. She was so big, her neck was so long! Her four breasts bounced heavily as she slid off the table and stood, her tail luckily working as a counterbalance to their weight. What had they done to her? She tried to take a step forward and wobbled on her feet; she only had three toes now, and her legs were digitigrade. It felt, well, alien to even stand. 

“I…I’m an alien…” Cara breathed, “I’m not even human anymore…”

“You are still you,” Alpha insisted. But better. You will be our first breeder and be treated like a queen…”

Maybe it was the countless hormones flowing through her body, or perhaps the shock of everything finally catching up to her, but she couldn’t help but feel flattered. Alpha spoke with such reverence about her. Nobody had ever given her such attention. The tall Nixen waved some sort of instrument over her and Cara flailed in shock, stepping backwards and falling into Alpha’s long arms. They encircled her and squashed against her breasts, making her gasp in pleasure. They were still sensitive from the change. 

“She is perfect.” The tall Nixen breathed, sounding both relieved and excited. “Very fertile too, thanks to the extra hormones flowing through her she should have no issues giving birth to a full litter.”

“Littler?”

“Yes, Nixon used to give birth to at least two to four young each pregnancy.” Alpha explained, “Hence why we have more teets than human women.”

“Breasts…” Cara corrected, “We don’t call them teets.”

God, them saying that made her feel even more like a broodmare than she already was. Her mind was filled with images of herself with four little Nixen babies swaddled in her long arms, suckling at each of her breasts. A loving Nixen father behind her, pressing his body against hers. A shiver ran down her spine. Oh God, she was so horny right now. After everything her body had gone through, she had been primed to breed; she was wet, hot and wanting and apparently, very, very fertile. 

“When do I…when do I need to start?” She asked and there was a horrified gasp from the other side of the room. She turned and looked down at her human colleagues. 

“You’re really going to do this? Become their breeder?” Dr. Paulson gaped.

Cara paused momentarily. What had been waiting for her back on Earth? Another awkward date in the future? She didn’t really have any friends or family. The crashed ship had been the most exciting thing to ever happen to her. But now she was on an alien ship, with the aliens themselves! And they were ready to shower her with love and affection for saving their entire race. She turned to look Alpha in the eyes.

“Yes. I am.”

It was hard to tell, but she was sure Alpha was overjoyed. His features seemed to light up, and his black eyes shimmered under the laboratory's harsh lighting. 

“Return the other humans to earth and wipe their memories.” He ordered. “I think we have what we need. We can return for others once we know the procedure can produce young.”

Cara took one last look at her human compatriots as the tall Nixen began the procedure to return them to Earth. She gave them a little wave, then took Alpha’s hand in her and let him lead her out of the laboratory through the rest of the ship. Her long tail swished behind her, making her widened hips sway. She was totally naked, and yet she didn't feel exposed at all. She felt free. 

“I was chosen as the lead on this mission, not just because of my dedication to the cause but because of my virility,” Alpha said as they walked. “It was decided that should the procedure work, I should be the one to father the first generation of new blood.”

Cara looked up at him, realising what he was implying.

“You’re going to impregnate me.” She whispered, and Alpha nodded. 

“I have been waiting for this day for so long…” He groaned. “I will make it good for you, I promise.”

Cara could see just how much the idea of getting her pregnant was turning Alpha on. He was trembling with joy, and that length between his legs was starting to harden. She shuddered, unable to look away as it twisted. It was already so big she hoped her new body would be able to fit it all inside her. They walked, and Alpha took her into what appeared to be a bed chamber. Gentle, he began to peel the electrodes off her body, letting the bulbous tip of his tail brush over and soothe the skin there as he did so. She could feel the moisture between her folds growing with each step she took. This had all the excitement of hooking up with a stranger and then some!

Cara lay back on the bed, feeling the bump where her tail rested against the small of her back sink into the mattress. She was ready for this, her new life as an alien breeder. On some level, she had been ready for this for a long time without even knowing. Alpha stood over her, now fully erect. Cara could see why he had been chosen for this job, if nothing else, he had the hardware. A squirt of moisture escaped her now blue pussy in anticipation. But to her surprise, he didn’t thrust into her right away. Instead, that long tail of his snaked around his body and began to feel along her curves. 

It brushed over her nipples and cupped her breasts, touching her all over before that bulge at the end slipped between her folds and began to stroke back and forth. Cara felt her eyes roll back in pleasure; this was the most erotic thing she had ever experienced. The pads on her new three-toed feet curled into the sheets as he thrust the end into her. They hadn’t even started to have sex, and already she felt close to cumming. Cara experimented with controlling her own tail and found it surprisingly easy. She wrapped it around Alpha’s waist and pulled him close, running her own tip along his cock. The length and heat of it made her so horny she couldn’t wait! She wanted to be a good mate to Alpha and be bred. 

Unable to take the teasing, she stopped stroking him and returned her tail to his hips, pulling him forward and onto the bed. Alpha hovered over her, the tip of his cock resting against her wet hole. Their eyes met, and their tails intertwined before he plunged into her in one strong thrust. Somehow, the full length fit inside her now, and she could feel every inch of it. The thick cock pressed against her inner walls, and she moaned, squeezing it tight. Thanks to Alpha's teasing, she was already on edge, and she knew it wouldn’t take much. They began to rut like animals, Alpha thrusting hard and fast. He was incredible, so big and hard inside her. Cara could hardly stand it. 

“Oh! OOOOH!”

“Incredible, oh Gods, you feel so good, Cara, I can’t wait to fill you with my babies.”

“Yes! Please! I want them!” She wailed. “Make me pregnant with your babies!”

Alpha groaned and thrust harder. Cara could feel his cock slamming against the deepest part of her new alien vagina, and it felt incredible. She clung to him, tail twitching in pleasure as she got closer and closer to the edge. Alpha’s long fingers rested against her chest and squeezed her breasts in turn. Soon, there would be little alien babes suckling at her. God, the idea of bearing his young and the young of other Nixen made her so hot.

“I…I’m gonna cum!” She groaned. “Ahhhhh!”

The orgasm filled her, and she felt her passage tighten around Alpha. He threw back his head and let out a pleasured cry. A moment later, Cara felt him shudder inside her, cum flooded her new womb, and the sensation made her cum again. She was filled with his alien seed, which was already taking root inside her. Alpha held her close, stroking his long fingers down her sides reverently as they came down from the high of their orgasms. 

“Amazing, I knew I had to be the first one to have you.” He shuddered.

“The others?” 

“Yes, they will also bed you, we have to be sure. We want you pregnant by the end of the day.”

Cara giggled; she was sure she was already pregnant but she didn't say anything. She wasn't about to say no to another Nixen having his way with her. 

“I will always be your first though, your mate.” Alpha purred. “I will bed you as many times as I please, most of your young will be mine, one way or another.”

Cara snuggled against him as he told her about the planet that would soon be her home. She couldn't wait to explore her new world and spend the rest of her life with her new mate.