Zoey yawned, wriggling among the many sheets layered over her bed. She couldn’t deny that the lavish four-poster she occupied was comfy, but it seemed that no matter what kind of night she had, she would find herself totally tangled in the bedding come morning. She managed to wriggle her legs out from their cloth bindings, and moved to slide off the bed - only to be stopped by a tug at her groin. “Ugh, right.” She groaned, carefully extricating her fat, throbbing shaft from the knot of blankets as well. “Hmmf, mommy Riven says my next puberty isn’t gonna start for another month, but I’d swear you’re bigger than before.” She said, frowning at her giga-cock as though it were a misbehaving pet.
Zoey was one of Riven’s many, many daughters. Unlike the living dicksleeves that she kept on hand to take her titanic, room-filling loads, Zoey had turned out as a particularly potent herm. When she was born, her fat, throbbing shaft was already nearly 4 feet long. Once Breeder Corp heard about this - as well as the fact that she had managed to fuck one of the attendant nurses into a moaning, cum-bloated mess barely an hour after being born - they had been very eager to get her on the payroll. She promptly became their youngest ever breeder-for-hire, going out wherever she was called to and turning even the most barren of women into mothers many times over.
All of this was the reason for her current throbbing, pent-up state; In order to prevent any loss of ‘product’ from her over-productive nuts, Zoey frequently wore a high-strength, ultra-dense cockring, courtesy of Breeder Corp R&D. It seemed a little unnecessary, in her opinion - ever since she was born, Zoey experienced a strange genetic quirk that caused her to go through an accelerated puberty every year, complete with growth in her breasts, cock, and ass, as well as a boost to her cum and milk production. This, on top of her already absurd size at birth, meant that there was almost no time she wasn’t raring to bloat a womb with enough semen to fill a small lake, so a cock ring seemed somewhat excessive… but “excessive” was practically Breeder Corp’s corporate motto, so backed-up balls it was.
Groggily, Zoey threw on a Breeder Corp branded jacket - the only required piece of clothing in her uniform - and eventually made her way downstairs, entering the kitchen several seconds after her flared cockhead. A few MILFy maids bustled around, prepping food for the many daughters who lived in the mansion. Plunking herself down at the counter, her heavy nuts reaching the floor with how full and pent up they were, she watched the stacked girls as they bounced around the kitchen, their generous curves spurring her already-full nuts to produce even more jizz. Finally, one of them had the time to place a heaping plate in front of the little stud, but felt a tug at her skirt as she turned to move away. 
“My nuts are soo full… could you help me out?” Zoey pleaded, giving her best puppy dog eyes. The woman smiled and nodded - this situation was by no means new to her. Kneeling gently, she began to caress Zoey’s swollen balls, occasionally pressing her face against them and inhaling the intoxicating scent of her musk. Zoey yawned and began to eat her breakfast - she was a growing girl, after all, and making all that delicious cock-cream took energy. She gave a small surprised squeak when she suddenly felt the wet heat of the maid’s lips kissing her sack, but soon sighed, with relief as she felt her aches melt away as the maid licked and kissed all over, giving her nuts a thorough tongue bath. It took a few moments for Zoey to remember her food, but eventually she began to work her way through the plate of fruits, eggs, and toast. After several minutes, her balls CLENCHED, rocking the maid backwards slightly as Zoey groaned. Her urethra bulged out as cum rushed to escape, but was blocked off by the cock ring, which audibly creaked as it resisted the overwhelming tide of cum.
“Guuuh~ alright, I need to take a job quick or my balls are gonna explode.” Zoey groaned, and pulled her phone from her jacket pocket. She flicked hurriedly through the list of jobs on offer, scanning each one briefly. One woman, a motherly fox, caught her eye. “Huh, haven't seen her on here before.” She muttered, and checked the location. “Mmf, just a couple blocks away, perfect.” she said, accepting the job and hopping down from her seat. The maid whined slightly as her source of delicious loli-musk was taken away, but let her leave.
As Zoey stepped out the wide double doors that comprised the main entrance to the mansion, an automated car with the Breeder Corp logo came to a halt on the gravel drive. She hopped in the backseat and pulled out her phone, scrolling through memes while the autonomous driver zipped through the neighborhood.
—
Lana had barely hit submit on what she had thought was an application to an artificial insemination clinic when an email arrived in her inbox. Your insemination clinician is on the way! The subject line proclaimed. She looked at the email, confused. She had thought this was a normal fertility clinic, but apparently they made house calls. Perhaps this is just some kind of preliminary appointment, she reasoned. Closing the browser and stretching, she caught a glimpse of herself in the mirror. She was by no means past her prime, though she was getting on in years. Her curves were lush, with heavy, full breasts and an ass that was straining at the limits of the tiny office chair she sat in. And her womb was certainly still raring to go, practically aching to be filled up with little ones - her heat had begun a few days ago, and was now in full swing. Sadly, her husband was unable to satisfy that particular drive, due to being infertile.
She was snapped from her reverie by the chime of her doorbell. “Well, that was fast.” she said to nobody in particular, rising and starting to head downstairs, before realizing she was still in her bathrobe. Not wanting to make the clinician wait, she hurried to the door and opened it, saying, “Oh, I’m sorry but I haven’t had the time to change, please take a seat and I’ll be right -” Her apology was interrupted when she saw the person on the other side of the door. Zoey smiled up at her, waving cutely. “Don’t worry, what you’re wearing is perfect~!” she replied, feeling her cock throb and strain from behind her zipped-up jacket, where she had stowed it away.
Lana blushed, confused. “Um, are you with Breeder Corp? You seem a bit… young…” she said, wondering if perhaps it was ‘Bring Your Daughter to Work’ day. 
“Yup! I’ll be your clinician today.” Zoey said, excitedly. “Come on, let’s get started!” she called, and breezed past her client and into the house. 
Is she wearing anything under that jacket? Lana wondered briefly, before dismissing the idea as absurd. “Uh, okay - but what are we starting?” she asked as they entered her bedroom.
Still just as chipper, Zoey replied, “Insemination, what else?” And with that, she unzipped her jacket. 4 full feet of loli horsecock immediately flopped out, stiff and straining against the ultra-strong cockring. A wave of musk was released alongside it, filling the room and igniting Lana’s already burning heat. She gasped in shock, but was unable to look away, tracing every vein with her gaze as her cheeks flushed redder and redder.
“Uhh… I think there may have been some confusion about what I ordered…” Lana managed, trying to shift her legs to conceal the dripping wetness that was forming between her thighs. “I was expecting… artificial insemination.”
“Why would you want to do that, when the natural way is so much fun?” Zoey giggled, enjoying the way that Lana’s eyes followed her cock with every throb and bounce. The woman was biting her lip, her heat having gone up several notches since seeing Zoey’s massive pole of breeder meat. 
“N- no.” She managed, finally. “I’m a married woman, and you’re far too young. We shouldn’t do this.” The small damp spot forming in the carpet at her feet told a very different story, however. Zoey knew it wouldn’t take much to push this desperate MILF slut over the edge, and she knew just how to do it.
“Aww, but you should at least see me when I’m hard before you send me away.” She said, a sly grin turning the corners of her mouth. 
“What-” Lana began, but barely managed that much before Zoey had pressed a button on the side of her cockring, which separated and fell to the ground with a resounding THUNK. Immediately Zoey’s dick SURGED in size, going from 4 feet to 6, then 8, then finally capping out at 10 full feet of thick loli horsedick. Her nuts, now no longer constrained, expanded as well, swelling until each was the size of a large beach ball. The smell radiating from Zoey went from a pleasant, virile scent to a powerful, mind-melting aroma of pure breeding musk.
Lana didn’t stand a chance. Her poor, desperate pussy, already overwhelmed by the presence of such a virile little girl, was GUSHING, aching to be filled by that monstrous cock. Her heat had turned from a warm fire to a scorching furnace to a blazing inferno, utterly in control. She flung off her bathrobe and leaped forward, throwing her curvy body onto that cock and worshiping every inch that she could reach. She licked and rubbed all up and down that pillar of meat, grinding her soaked pussy against the medial ring while licking all around the flare, taking deep, desperate sniffs of that incredible musk every chance she got. Her cunt was gushing like a fountain, and she could have continued like that forever if Zoey hadn’t interrupted her.
“Hey~! You know, I am here to inseminate you… at some point this has gotta go in that juicy pussy of yours~!” She called, almost across the room, her dick nearly stretching from one end of the spacious bedroom to the other.
It seemed like Lana had truly forgotten the purpose of all this in her desperate lust for underage giga-cock. Now that she had been reminded, however, it would take an army to stop her from getting the gallons of bunny cream she craved. Climbing forward, she worked her way into the few feet of space in front of Zoey’s dick, arms braced against the far wall while her thick ass and motherly hips wiggled against the loli breeder’s cocktip.
Zoey purred, gripped the nearest steady handholds, and in a display of incredible strength for one so small and young, SLAMMED forward. With one thrust, over half of her 10 foot length was already buried deep inside Lana, who was completely overwhelmed by the explosion of sensation that had just gone off inside her skull. Her eyes were rolled back, her mouth open wide in a silent cry of shock, and her toes curled in tremendous ecstasy. Despite the rest of her body being a twitching, orgasmic wreck, she still maintained a perfect pose to be mounted further, which Zoey took advantage of. She pounded forward, over and over, each thrust sending overwhelming parks of pure pleasure up Lana’s spine and throughout her musk-drunk brain. The soft, hot tightness that slowly wrapped around her truly gigantic cock felt wonderful, like sinking into the most pleasurable bath ever. With one final, monumental thrust, Zoey tok the final step to close the gap between the two of them, fully hilting Lana on her 10 feet of dick. When their hips met, Lana finally broke her silence. “OOOOOGH~! GOOOH~! SO GOOD! Breed me breed me breed me BREED ME BREED ME!” She screamed, unconcerned with who would hear her begging for this 4 year old girl to turn her into a cum-bloated mess.
Zoey gripped that MILFy ass tight, working her surprising strength to shove foot after foot of powerful loli-dick in and out of Lana’s desperately clenching cunt. They were groaning and moaning in unison now - words had become unnecessary in the face of pure, animal desire. 
Zoey’s balls, aching from the morning’s teasing as well as her desperate need to fill this thick slut with as many babies as she could fit, just couldn’t last. “HAAAGH~!” Zoey moaned, thrusting even harder. “FUUUUCK~! GONNA CUMMM~!” With a ground-shaking rumble, her orgasm began. Cum was forced up her urethra, bloating it out and increasing the thickness of her dick by almost an additional foot. Slowly the load worked its way up her shaft, finally reaching the tip and spraying a geyser of cum into Lana’s defenseless womb. Instantly her belly swelled out with the added volume of seed, beginning to fill the room. But Zoey didn’t stop there. A minute later and she had barely slowed - both women still moaning desperately as they came over and over, both solely devoted to turning Lana into a baby blimp. At this point, Lana’s bloated stomach nearly filled the bedroom with its size, and Zoey had barely finished her first shot of cum~!
5 minutes in. Lana’s belly strained at the confines of the room as Zoey relentlessly filled her again and again. Lana could practically feel her eggs being assaulted by the little bun’s hyperactive sperm, each one being attacked by a swarm of eager fertilizers.
10 minutes in. Zoey’s moans had weakened to a contented purr, but her balls were still going strong. In the brief moment of lucidity Lana had between her own twitching, squirting orgasms, she was concerned for the state of her house. She could hear creaks and groans as her belly pushed on the frame of the building, needing more space to accommodate the thousands of gallons of underage cum being fired inside her. Zoey, meanwhile, was distracted by the feeling of babies rapidly developing inside of Lana - she could feel unborn breasts and asses pushing against her monumental length where it was buried in the MILF’s womb.
15 minutes in. An enormous CRASH rocked the two still-cumming breeders as the house itself gave up the ghost, walls and floors giving way to the sheer size of Lana’s growing belly. They spilled forward, deposited on the lawn for all to see as her cum-gut rapidly expanded, relieving all the pressure that had built up while trapped inside. Lana moaned in relief, still reveling in being filled with such a flood of cum. Her heat had been burning for days before this, and the relief from the desperate need to fuck was almost as good at the mind-shattering sex. 
20 minutes in. Zoey finally felt like her orgasm was beginning to wind down. She relaxed, leaning forward to lay on Lana’s bloated form. But suddenly, she jerked upright, panting desperately as a whole new sensation could be felt on her cock - the licks and caresses of tiny baby girls prickled all along Zoey’s length. Her own daughters were trying to get a taste of her dick even before they were born! “Ohhh, fuck~” she moaned into Lana’s ear. “Our babies are trying to get me off~!” 
“That’s so fucking hot~” Lana pured, barely cocious through the pleasurable haze that had enveloped her. Her pussy continued to clench and milk Zoey’s cock, but she was little more than a bliss-soaked balloon at this point, very unused to the stamina of an inbred loli-stud like Zoey.
Zoey’s hips bucked into Lana and immediately she received the sensation of a dozen different titfucks from hyper-sized baby breasts. The feeling of so many desperate sluts attending to her dick reinvigorated her flagging orgasm. Zoey’s balls almost instantly churned up another house-breaking load of cum, a loud GURRRGLE accompanying their sudden refill. As she bucked her hips once more, a tight heat enveloped her tip. It took her only a moment to realize what had happened. “Oh, fuck~!” she gasped, thrusting even harder now. “Oh, fuck, my baby daughter is taking my cock before she’s even born~!” She moaned out. Sure enough, one overeager girl had positioned herself right at Zoey’s tip, and now her underage womb was stretched wide over that flared head. Zoey’s cum was now geysering into her womb, rather than Lana’s, filling the baby with huge amounts of hyper virile jizz. 
40 minutes in. Zoey had joined Lana in becoming a moaning, cumming mess atop the MILF’s enormous belly. She had filled the lucky baby girl riding her cock with another entire load, and she was just starting to feel a bit spent, hips bucking lazily as she felt more babies develop rapidly around her, this time all of them inside of her daughter’s womb. She sleepily pulled her phone from her jacket pocket, meaning to call a cleanup crew to handle their situation. “Ugh, that was too much. I’ve never fucked a baby while she was still inside the womb before-” Zoey said, but was interrupted when her casual thrust caused a familiar heat to envelop her tip. Instantly her balls knew what was going on, and with a cacophonous RUMBLE, began to refill once more. Zoey quickly realized this job was going to take much longer than she had thought - and result in a lot more babies. 
“Oh, fuck…”