FSE

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The planet's official designation was Nairo-EL16, but to most in the galaxy is was Taurus. By all accounts, it was an ideal place to live; an earth-like planet with lots of uninhabited, arable land, plenty of which was very lush, and in one of the lesser-governed corners of the sector. But being a few too many light-years away from major hubs like Station Goddess or Phonon meant that going there was quite inconvenient, and trying to go anywhere else was similarly so. Therefore, Taurus was mostly a one-way trip.

Some went to flee the law; it was a big enough planet to hide, although not so big that locals wouldn't cooperate with the law when it came looking, and not so far that they wouldn't come at all. Some of the wealthy went to build their private homes and communities, looking to escape public scrutiny or retire into the idyllic mountains with their comforts. But by the time River arrived on the planet, it was mostly known for the bull communes.

A few decades prior, a xenogeneticist who went by Oro developed a mutation sequence that he believed could allow human males to become nearly self-sustaining community resources for basic needs. He touted that he could turn a man into a beast that could feed, clothe, and protect a population of a couple dozen or more all by himself with fantastic yields-per-calorie invested. Oro proposed that these men could become safeguards against colony collapse or some kind of planetary apocalypse, or could even be the foundation for more rustic, natural colonies without so much destructive, aggressive terraforming. Needless to say, when the public got a hold of the details of his mutation, he was forced out of the medical community.

But a lot of his volunteers and test subjects went with him, and plenty more curious men besides. Taurus wound up being the perfect spot for Oro to continue his research and test his commune ideas, and now at least a dozen dotted the warm, temperate zones of the planet: communities that were the beginning of towns which would be the beginnings of a small nation, so they said.

The talk was too much for River to ignore. The mutations were mostly related to extreme amounts of testosterone production and processing in the body. The news spoke of massive muscle growth, so that the men could defend their communities from predators, hair growth that could be used for coverings if needed, and even lactation that would be rich in carbohydrates. That was where most coverage stopped – the idea of turning men into big, hairy cows was already enough to discredit Oro's work. But River went looking, and the unspoken details were even more shocking: the body needed to produce so much testosterone that the testes would swell to massive sizes, and with it came similar growth to the rest of the reproductive organs, resulting in gargantuan penises and gallons of ejaculate during orgasm. Oro, however, sought even to make that a resource, ensuring that lactate would provide carbohydrates and most core vitamins, but the men's excess nutrients could be infused into their semen, making it a rich source of protein and minerals, as well as highly potent in reproduction if needed. Men would need to be “milked" frequently with all their excess fluid products, but it was considered a feature, not a side effect; a pleasure reward to incentivize men to take up the mantle and continue to receive the long-term enhancement regimen.

River took the time to consider it all carefully and research it thoroughly, but he knew from the beginning what his choice would be as soon as he discovered news of the bull communes. A shuttle went out to Taurus only once every Terran year, and the trip itself was a few years in cryo. Passage took just about every scrap River had left after selling his apartment. Like most trips to Taurus, it would be one way.

River could hardly believe it had already been a year since he'd begun his new life on Taurus.

The sun crested over the mountains, drawing back the blanket of shadow with the gentle hand of dawn sweeping over the pastures below. Dew gleamed in the new light, and it was the gentle warmth that stirred River from his rest in the grass. His eyes blinked open slowly, his mind slurring to wakefulness. There was no hurry.

He stretched and grumbled peacefully before anyone else awoke, his body tingling with intimate warmth at the feeling of the sun on his bare body. He hadn't worn clothes in months, ever since the first treatment. Now the thick mats of auburn hair that covered his chest in a wide swath, his back likewise, his armpits in dense bushes, his crotch enough that the carpet spread to his thighs, and his ass in a jungle-like tangle that kept him warmer than he ever thought they could. His body was more hair than exposed flesh; only parts of his chest and abdomen exposed the bare, soft skin. Truthfully, the most flesh he flaunted on any one part of his body belonged to his penis. The shaft now swung down to his knees, and even his huge, watermelon-sized balls still showed the skin beneath through the haze of thick pubes that covered his entire scrotum. Even his beard, which didn't always come in so fully before, was now dense over his lower face and jaw, obscuring his mouth and keeping his lips warm.

The dew wetted the hair on his body as if he were a part of the grassy field himself. Sure, clothing would help keep the dew off, but as he awoke and stretched his arms up, he could already feel himself sweating, his armpits matted and musky, and he could feel his manhood pulsing gently, throbbing as a constant drool of thick precum oozed from beneath the hood of his foreskin. He was simply too big and too productive for clothing; even a shirt would stimulate his nipples to leak, as they now did at the slightest touch.

His cock, however was already leaking, and as soon as he stood upright and felt his balls hang down from his immense form, aching with churning seed. His backed-up system was begging to be milked after a full night's rest. He turned to look at the barn where the other bulls were, and he could see the faint figures of the people in the sparse town down at the base of the hills moving up toward the big barn. And from that big barn, he could already hear the grunts and grumbles rippling across the grass. It sounded like the morning milking was about to begin.

River wouldn't have missed it for the world. While he still wasn't used to this new lifestyle, and the mere thought of getting milked made him blush furiously, he couldn't deny how it also made his nipples stiffen and his nuts ache, his drooling precum starting to ooze faster as he got more excited. Existing naked now, treated more like a beast of burden than a person, having his sexuality and his most private feelings reduced to productivity was more than his mind could truly comprehend all at once. And yet it was thrilling all the same, his heart pumping and tingles rippling through his muscles as he headed toward the barn, heavy footsteps tromping through the grass.

The barn seemed to loom large over the community, never too far from the humble cottages and hovels where the bulls made their homes. River hadn't yet built his, but he could see the nice little stone cottage on the hill opposite the barn, crossing the dirt path through the grass that led to it on the way to the barn. The great red walls were accented by the great dual silo-like structure positioned against the back. Those great steel towers didn't hold grain, though – that was where the bull milk was stored, as well as the bull “cream." Another dirt path, wider and dustier given its heavier traffic, led toward the swinging doors as a ranch hand opened them up, giving River a tempting peek inside. Even the thought of what lay within got his manhood stiffening in a way that morning wood failed to accomplish on its own now, given its great size. His path along the dirt road was marked by a trail of oozing precum leading toward the barn; certainly not the only one as he neared the entrance.

“Mornin', River," a husky ranch hand with a big mustache, wearing a work hat and sturdy overalls greeted him with a tip of his brim. “Got a stall waitin' for ya. Come on down and we'll get ya hooked up." The way the man spoke to River so casually about what was going to happen never failed to both confuse and excite River. How could this possibly be normal? And yet here, it was, and River couldn't help but catch the precise tone of the hand's voice, just like the others. He spoke to him almost as if he was a bull, a pack beast. As he led River along, the only thing missing was a physical lead rope, but otherwise all the other elements in his treatment were present: the unhurried pace of his steps, the distant way his gaze laid ahead of him, unbothered but the other bulls in the other stalls, the relaxed way he removed his hat to scratch his head before replacing it, and the meandering way he swung the door open to the stall.

The barn itself was laid like many others, with a concrete floor mostly covered by straw. River had been told the straw helped to soak up excess “moisture," but River also suspected it helped mask some of the overpowering male smell of the place, not to mention the way it made River feel a bit more at ease. Perhaps there was more bull in him than he realized. The roof and rafters hung high overhead, and shafts of light filtered in through windows in the hayloft and the occasional gap in the slat walls, dust wheeling through the air idly. But the relative peace of the space was in tight contention with the activity within.

Before River even passed by a stall, he could hear the bellowing grunts and groans of the other bulls, along with the mechanical whirring and the distinctly wet, fleshy sounds that floated through the air as constant as the dust particles. He passed by the stall his neighbor, Tony was stationed in. Tony was an older bull, and one of the bigger ones. His black body hair had grown so thick, it almost looked like a fur coating, save for the sparce patches of fair flesh still left on his face and around his chest and manhood, streaked with flashes of silver. He'd taken to the enhancements so well that he'd even sprouted little horns from his skull – the mark of a fully-mature bull. The sight of Tony in his stall on the way to River's always gave River pause, his cock stiffening and throbbing as he stared.

Tony was bent over, being put to work by the huge machine that took up most of the stall's space. All River could see of him was his ass lifted high into the air, his heavy, bloated pectorals hanging down between his beefy arms, his massive, leg-length cock twitching beneath him, and his face braying through his bushy beard. The machine attached to him at ever point: two big nipple pumps attached to the thick buds of flesh through the forest of chest hair, extracting gallons of milk from each nipple every minute, the white fluid gushing into the industrial plastic tubes with pure pressure. Likewise, a similar sleeve designed to mimic a cow's pussy was hooked up to his titanic cock, a heavy base positioned near the tip while the sleeve extended down the shaft with a heavy black cylinder that moved as it pumped Tony's cock with hydraulic motions. To aid with the milking of Tony's “cream," which couldn't be obtained with pressure alone, a huge, silicone rod was pistoning between his huge, hairy asscheeks, filling the stall with the sounds of pumping, squelching flesh as copious lubricant oozed from his anus, down his taint, and over his furry, bulging scrotum. With his prostate slammed so heavily and precisely, and his cock pumped with squelching, squeezing, stroking pressure of synthetic flesh, Tony was forced into orgasm one right after another, bellowing and sweating profusely from his forehead and chest, droplets pouring from his ass and armpits in rivulets as he ejaculated powerfully into the tubing. The sight of the cream tube pumping full of thick, gushing, virile, and nutritious bull semen – given the gentler name of “cream" by the community – made River's own heart pump, and his mouth feel dry, sweat already starting to pour down his own hairy back.

River startled when he felt a small hand patting his rump, not like a person, but like a beast of burden. “Alrighty River, in ya go. We'll get ya started." River turned his head to see his stall awaiting him. The space was smaller, and the machine likewise. The padded bench awaited him, its legs spread out against the stall floor in the same spread-eagled fashion he would be, the prostate pump, tubing, and collection tanks taking up most of the room in the stall, hanging overhead and sprawled over the floor with the stray bits of hay. In his current state, not yet a full-grown bull, his milk and cream wouldn't be mixed in with the others', and was instead kept in special tanks that were tested to monitor his progress, or as “special batches," for those with discerning tastes. But River couldn't linger long in nervous anticipation, not when the bearded ranch hand was swatting him again on his hairy ass to keep him moving.

Just stepping into the stall felt so vulnerable. His cock was already rock solid and leaking like a hose before he even reached the bench, laid out lengthwise from front to back of the stall. The handler just gripped his shoulder and pushed him down, gently but certainly, urging him to take up his position. River released a shuddering exhale as he dropped, chest down against the bench, the synthetic material squished between his pectorals with his nipples hanging from either side, the other end of the bench reaching down to his abdomen as he bent over. Tits down, ass up – that was the way. He felt the first cool breeze against his asshole as he straightened his legs, the sweat soaking the hair between his cheeks.

The ranch hand hardly paid any mind to the compromising or even sexual nature of it all. There was something so deliciously degrading about his attitude, but River supposed he wasn't completely surprised. For millennia back on Earth, humans had guided countless farm animals by hand, urging them to give milk or fuck right in the fields. If his equivalent on Earth could grip a stallion's dick and guide it into a mare like it was the most natural thing in the world, why not this? River tried his best to stay still and calm, even as the handler busied himself, shoving his thick nipples into their suction cup pumps before reaching down to feed his cock into a long, slick milking sleeve until the base was nearly nestled against his pubes.

Still, it was hard for River to feel that way when suddenly he felt a lubricated, silicone rod suddenly shove itself into his asshole with a wet squelch, until the blunt tip was jammed up right against his prostate. He gasped, but the ranch hand paid it no mind. He simply stepped out of the stall, threw the switch for the machine, and left River to finish his morning milking.

It all began with a terrible buzz as the machine hummed to life, starting with vibration. His nipples, his prostate, and his cock were all subjected to the low, yet intense energy that pierced through his thickened flesh straight to the core of him. His butthole clenched against the shaft involuntarily, but it didn't budge, his balls squeezing tighter against him while his cock pulsed, feeding a glob into the tube that was quickly swallowed away, with precum easily separated from cream by the machine. River could only gasp when the pleasure radiated throughout his body, and the milking process began.

It started with his nipples. Eager to yield their milk, the intense pressure of the suction pumps finally got through like a popped seal, the droplets springing from his engorged, reddened nipples, his chest hair around the flesh standing on end with the pressure as the fluid was sucked into the tubes. But once the milk started to flow, the stream became steady, a lighter trickle compared to the other bulls, but an unbroken one, white milk pumped neatly out of his chest and into one of the waiting tanks lining the stall walls. Some days, River still couldn't believe that milk came out of his nipples, but there was always a tantalizing feeling of relief and pleasure when it did.

Next came the pumping, twisting, stroking sensations of the sleeve on his cock. The complexity of it was remarkable, the way so many sensations could be combined into one, stimulating everything from his thick, hairy base to the foreskin gathered beneath his exposed crown. Buzzing, pumping, slurping, sucking, twisting – all of it would have been more than enough to earn an orgasm from him, especially when it started to really pick up and maintain its pace.

But alongside it came the real star of the show. The unassuming dildo – more of a prostate massager – had no qualms about whether or not he was ready to cum. It had its target set, and it pounded into it relentlessly, hard and fast from the moment the mechanical arm whirred to life. River's butthole was slammed and stretched wide, and that knot of pleasure deep within his ass was drilled into with relentless aim, right on the mark, making his whole lower half seize with impending climax, his cock, balls, and whatever else was inside of him clenching up powerfully. Milking a bull from start to finish was a lengthy process even at the best of times with how productive their enhancements made them, and the dildo was designed to force orgasms, ensuring that River kept to his tight schedule.

River felt himself cumming before he was ready to. Not even a minute in, and that relentlessly piston slamming his prostate made his body sweat and tremble, the buzzing and pumping and stroking all feeling overwhelming with pleasure, almost agonizing. “Ohhh! Ooooohh…! Mmmm…!" he grunted as he felt his cock and balls start to squeeze and throb, pushed over the line, his vision starting to fuzz and blur. “Mmmm…! Mmmoooohhh!" he bellowed his noises of deep pleasure. Then, building and building to an insufferable pressure that made his vision explode with sparks and forced the air from his lungs, he started to cum.

“Mmmooooohhh! Mmmooooooh! Moooooooo!"

His cock erupted, his balls pumping out bucketfuls of thick, potent bull semen over the course of his climax, while his milk started to flow in gushes as well. His body clenched in ecstatic orgasm, his butthole squeezing the dildo that fucked him while his hips bucked into the synthetic hole his manhood was shoved into. Sweat poured down his face, back, tits, and ass, and even drool began to trickle from the corners of his mouth, unable to keep his lips shut as he bellowed and brayed. His noises joined those of the other bulls, the telltale mooing of a cream cow getting milked that filled the barn at this hour.

But one climax wasn't enough, not by a long shot. The pace and expected yield of a bull was demanding, even an immature one like River, and the milking machine didn't let up for a moment. No sooner had his vision cleared from the first orgasm, his body slumping heavily against the milking stand beneath him, did he feel the machine pumping him, fucking him, milking him relentlessly, working to force him into his next whether he was ready or not. And in a matter of minutes, it did, leaving him trembling, gushing, mooing in throaty orgasm as the milking machine extracted every last drop of white fluid it could from his tits and balls with unfeeling force. River knew that the expected pace for him was an orgasm roughly every ten minutes, with at least five an hour, for the whole two-session containing likely a dozen orgasms, yielding dozens of gallons of milk and cream. Giving that much always left him feeling spent, but he knew it was less than half of what was expected of a bull like Tony.

As River was forced into another gushing, spine-shuddering climax, he could only imagine what that would be like. Given that bull orgasms lasted longer, given the greater amount of fluid ejected, River had to wager that the milking session was likely just endless orgasm after orgasm, with no breaks, no distinction between when one ended and another began. But he knew they yielded far, far more product than his body ever could. Briefly, he saw Tony in front of him, leaving as he mopped at his hairy armpits almost uselessly with a towel, immediately soaked through. But he hardly paid River more than a glance as the smaller bull looked up at him with lust and envy, before his vision was rendered blank by another full-body climax, yielding heavy gushes of cream and milk in the tubing.

In some ways, the hours bent over in front of the milking machine felt endless. And in others, River was surprised when the pumping, buzzing, twisting, fucking stopped, and he saw the ranch hand detaching the pumps from his nipples. “Over sixty gallons of milk and cream today. Not bad," the ranch hand said, smiling beneath his beard as he gave River's rump a pat, again more like he would livestock than another person.

River was left to wobble to his feet, given a worn, secondhand towel to mop himself with, but even without being fully grown, it was soaked through immediately. He chose to wipe his face, mashing it into the thick beard that coated his chin, soaked with sweat and drool. It was nothing to let his chest hair, armpit hair, and pubes catch the rest of his copious sweat before tossing it into the wooden crate with the others. Even as he stepped out of the barn on wobbly legs, his flaccid cock buzzed with the memory of its recent pleasure. He felt lighter, especially in his chest and balls, yet his cock still drooled precum, throbbing occasionally with tremors of pleasure. By the time the midmorning sun and breezed kissed his body hot and cold at once, he could already feel the beginning tingles of that gnawing pressure in the root of his ballsack, his cream reserves building once more.

Still, because River couldn't contribute his fluid product to the community in the same way the mature bulls could, he'd been given another assignment: collecting scrap metal from the nearby hills. It came in tangled knots and wrenched forms, warped beams and rods stuck together like mangled tumbleweeds half-buried in the earth. The wilderness of this area was littered with the stuff, carbon steel and titanium alloys mostly. River had no idea where it came from – it certainly wasn't naturally occurring. He doubted even Tony knew, but perhaps the Elder did. Still, if he was to keep his place on Taurus, he had to earn his next round of enhancements. Part of that was proving that his body was accepting it by getting milked – which also proved he could handle the intense experience of getting milked. But another part was contributing to the commune.

River scanned the roads and paths from the barn door, hoping to see Tony's lumbering form trundling along, but it seemed the larger bull had already headed into town, where he was a working bull, hauling heavy loads and generally serving as an effective pack beast. It seemed like hard work, but Tony always treated it like it was nothing, just idle activity to pass the time. River supposed that, to a cow as big as Tony, pulling a cart may as well have felt like a refreshing walk. It was just as well; River felt wary of town. He'd heard that there were a few women there who'd come out in the last few years to really turn the commune from effectively a prospector's camp into a proper town that could grow organically, and he'd heard those women were awfully fond of bulls – or at least fond of Tony. Females intimidated River and made him feel uneasy with their attraction and desire at the best of times; he couldn't imagine how Tony handled it, and the last thing he'd want to see was Tony mounting and rutting one in the streets.

So it was off into the hills alone, the wind cooling him but not chilling him with his thick covering of body hair, and the sun keeping him more than warm with that hairy, shaggy coat, ensuring the sweat stayed flowing.

As the sun approached its zenith, River looked back and the little town was no longer a collection in the distance, it was gone entirely, hidden behind the rolling grass that met the mountains on the horizon. It felt as if all of Taurus stretched on before him, and the old life he'd left behind was little more than a dream he'd woken up from.

It was hard not to get pensive like this when he was scrapping. He'd see some tangled, twisted metal bar or two sticking up from the earth, and while his muscled worked hard to wrench it free from the stone and dirt, he'd get a nice, pleasant pump, his biceps, chest, and shoulders swelling from the exertion, glistening with effortful sweat soaked up by his body hair. While his body worked, he didn't necessarily feel strain in the way that he used to. His stamina had improved immeasurably, and even hard labor didn't make him feel tired. If anything, it energized him. This left his mind free to wander about how far he'd come, and how far he still had to go.

He'd be seeing the Elder later today about it, getting assessed again for the final enhancement injection. It was hard not to worry, but it was even harder not to get excited. Just the thought made his cock stand stiff, even as he wrenched a few tangled rods from the ground and knotted them together into the growing ball of rusty steel he carried with him under his arm.

After all the fluids he'd expended today, thirst gripped River harder and harder. It was nearly time for lunch, judging by the high sun overhead, and certainly a fine time for a break. The hills were starting to become more familiar to him, and if he remembered correctly, there was a perfect little stream not too far from here…

Sure enough, River crested the next hill to find it bubbling through the grass, a wide, muddy shore spread out on other side as it cut a rivulet through the land. At its deepest point, it was maybe waist-high on an average man, which meant the clear waters would nicely soak River's hairy, sweating balls without drenching the rest of his body. He stomped in, trudging through the sucking mud before hitting the water and the pebble-clad riverbed, feeling the cold relief as he set down his metal ball on shore. Sighing with relief, he dunked his sweaty face into the water, his cock idly leaking precum invisibly into the stream save for the distorted ripples of the thicker fluid traveling down the flow, and he gulped the spring water down heartily.

“Save some for the fishes!" hollered a bright, deep voice.

River flung his head back, his beard dripping into his chest hair, to see King. Perched on a large, flat stone jutting into the stream from the mud a few dozen paces away, the other bull was equipped with a simple, homemade fishing rod. He was younger than Tony by about a decade, and therefore somewhat smaller. An amber brown, red in places, he was the heftiest of the three of them, with a great, soft gut that was a bit more fat than muscle, although his arms still showed the huge bulges of power that lurked beneath the layer of soft flesh on his chest, hard stomach, and thick, hairy thighs. He waved amicably, and River could almost see the smile beneath his great, bushy beard, his blue eyes poking out from thick brows, his hair pulled back into a tight tail. Already, just at the sight of River, his immense cock was twitching and hardening, spewing globs of precum into the stream with heavy plops.

River smiled back at him, waving as he started to head over, wading through the water. It was likely that he'd already scared off anything Tony hoped to catch, but he doubted Tony minded too much. Having the largest breasts of the cows River had met, at least yet, he more than pulled his weight with his milk and cream production, and was a bit of a community manager, helping the town manage crops, supplies, and other logistics so the Elder could focus on his work. Like the Elder, he too had built a camp for himself, more of a bare-earth firepit, but each night River saw King retreat to it along with Tony, his husband. River didn't have to sleep too close to the hut to hear the heavy sounds of passion and hardcore, sweaty bull sex carry on throughout the night. Sometimes, he couldn't help but watch, peeking over the lip of the hill to see their powerful, hairy, sweaty bodies moving in the gleaming fire light.

“I hope I didn't ruin your fishing," River apologized as he reached King. The two men were already feeding off each other's energy, and the sight of King's immensely thick dick fully erect made River get hard, which only made King's shaft seem to throb harder. His length was more moderate than Tony's, which was as long as his own leg, but King's girth always seemed impossibly large. Still, the bulls hardly paid it any mind, and River tried not to stare too much. He was still getting used to it, but moments like these made him feel just how utterly unremarkable it was; their bodies acting on their own.

King had no problems moving naturally through the world, making it seem second-nature, as if he'd been a bull forever. “Not at all! I was wondering if I'd catch you today! I could use some company," King said, his cheeky wink almost imperceptible through his great, bushy beard and brows.

“You could?" River asked as he reached the base of King's fishing perch, still standing in the stream.

“Sure! Jerking off is always better with company!" King said with a laugh. River flushed a little bit, but King just patted the rock. River felt like his mind had been read; with the stirring in his loins growing, he planned on masturbating before he went back to town at some point. Usually he did it when he stopped for lunch, but now his erection felt persistent, and the idea of doing it with King was tantalizing. Yet it was hard to know if all of that was merely obvious to a seasoned bull like King, or whether it was just in the nature of a bull's life to treat masturbation as a social activity, as the way in which two cows bonded.

“If you don't mind…" River accepted the offer. He hauled his body out of the stream to take a seat on the rock that Tony offered him with a pat of the smooth stone.

“Of course! Come, air your nuts out, dump a load with me! It's a great day to rub a few out!" Tony said, gesturing to the blue, cloudy sky that seemed to stretch on above them in an infinite expanse. The stone was warm on River's ass and the back of his fuzzy thighs, the seat pleasant and comfortable. His thick thighs brushed against King's huge body as the blond bull leaned back slightly and spread himself out, getting comfortable.

“Thanks," River said, trying to do the same. His cock stood fully erect from between his thighs, and his balls rested heavily on the lip of the stone while King's hung over the edge like two golden, furry fruits of a massive, bountiful tree, his massive dick jutting out like a trunk. It was hard not for River to feel the pang of desire for King, but King hardly paid it any mind. He just reclined back on one arm while is other started to grip and stroke his shaft with firm, strong pumps. His arm flexed, his belly and heavy, plump pecs jiggled, and copious precum and even rivulets of milk began to leak from him as the older cow groaned in pleasure.

“Ohh, that's good… Mmmooooooo…" Came the mooing grunt of a cow's pleasure. But even through the toe-curling excitement building in his fat body, King still managed to nudge River with his shoulder, strong enough to nearly topple him. “Don't be shy now! Can't go walking around harder than your own steel!" he said with a singular, belly-shaking laugh.

River nodded, gingerly gripping his own turgid, hairy cock and starting to masturbate. He sighed as well, feeling the pleasure build within him likewise. There was a comfort to it, knowing it was the exact same sensations that a cow as impressive as King was feeling, that his balls clenched and primed themselves for fundamentally the same blissful payoff, even if River's were smaller, and his nipples didn't leak so eagerly yet.

But at the same time, River still struggled to keep his eyes off of King, fought to quell the urgent rush of desire that burned beneath his sweating, hairy chest. He felt the powerful temptation to grab King's cock and stroke it himself, or offer his own for some mutual masturbation. He wanted to jam his head between King's legs and suckle on that massive slab of meat, press their chests together and frot with their manhoods and nipples, or even simply yank King's arm up and shove his face into that hairy, sweaty armpit and get the musk of a real bull in his lungs.

“Fuck, here it comes…" King groaned simply. With another long, bellowing moo, he was cumming, gallon-like ropes of cream pumping in white, haphazard arcs into the river, mixing messily into the clear waters as the evidence carried itself downstream. And despite his own lust, the sight of King's orgasm coming so quickly, naturally, easily as breathing helped him understand, feel more at ease.

For a bull, there was a time for sex, for love, for passion. But this wasn't it. Each night, King might lay himself out on the bed he shared with Tony, and feel his mate's cock pound into his asshole while he offered himself, kissed his lover, or even just rutted like animals, building up each other's desire into a roaring flame that could sear the heavens until the sun reappeared. But that kind of thing – lovemaking, fucking, or whatever there was in-between – had its place in a bull's life.

King wasn't masturbating with River to initiate a sexual encounter. That would come on its own in time; River was certain of that, since Tony at least was clearly not exclusive in his marriage to King. No, King wanted to jerk off with River because it was necessary. It was a part of being a milking bull, a bodily need as real as that for food, water, or even air. And just as people of all stripes shared meals with one another, turned a bodily need into an important, almost sacred, time of socializing and bonding, so too did bulls. The need to empty one's balls was an opportunity to bond as bulls, as men who shared this unique experience of heavy need, of immense, virile bodies and overwhelming semen production could only understand.

As River pumped his own cock, stroking faster at his turgid length, there was a different kind of sexual thrill, one that came with being a part of this new, nascent culture that was developing. One day, there might be thousands, millions of bulls, and they would carry on the ways and traditions that Tony and River were forging together right now.

“Mmmm! Ooooh…! Mmm-mmmooooooo!" River grunted and bellowed, joining King in a powerful orgasm that arched his back, sweat dripping down his armpits as he pumped his cock with both hands, firing his massive load into the stream to join King's.

King just rubbed his lower back in a friendly, almost affectionate manner while his own massive ejaculation, the globs of semen dwarfing those of River, carried on, the two flooding the stream together with their cream. “That's it… There you go… Let it all out…" King encouraged him.

River was left gasping and panting when it was all over, mopping sweat from his brow, armpits, balls – everywhere, basically. The orgasms he had when getting milked were much more intense and full-bodied than anything he could do with his own hands, but restrained and pumped as he was when on the bench, it was difficult to draw comparisons. But now, it was hard not to be aware of how much more powerful his orgasms were than his life before. It was as if his whole body was designed to cum, designed to provide milk and cream in excess. And in a way, he supposed it was now.

King chuckled a bit before adding, “Takes it all out of you, doesn't it? I still remember what it was like, being a young cow in training. You're not used to cumming with your whole balls, eh?"

River nodded in agreement, leaning back to let the breeze wash over his sweaty body, spreading his hairy thighs to let the cool air reach his heavy nutsack. As he caught his breath, he managed to reply, “Was this what it was like for you?"

King seemed to hem and haw with tilts of his head before replying, “Well, I imagine it was a fair bit different for me." His tone implied there was more to be said.

Curious, River raised an eyebrow. “How come?" he asked.

“Well, you see…" King said, rubbing the back of his head sheepishly with a grin, again exposing that ruddy, dense bush of armpit hair. “I was actually born a woman."

River's jaw dropped.

King continued. “Feels like another life, or like one of those virtual reality simulators instead of my own past, but… Yeah, it's true," he said. He turned to River said, “Hard to believe, huh? Especially with this!" he added, slapping his gut proudly, making his belly jiggle.

“I mean… yeah," River admitted. “I never would have guessed…"

King leaned back as well, stretching over the rock, looking up at the sky as he rested his arms behind his head, spreading his heavy thighs, splaying himself out as he spoke. “Well, it was just one of those things, I suppose. Always felt like something wasn't quite right. I knew that a simple course of hormones could turn me into a man, but, well… I also knew it couldn't do everything. I wanted the full experience. I didn't just want a cock and balls – I wanted a big, fat, hairy cock, and balls that could blast rope like no one's business!" he said, barking with a laugh. “I could have come to Taurus years earlier, but, well… I figured the treatments everyone was talking about wouldn't work for me. But eventually, I got so miserable living as a lady that I figured if I couldn't be a big, fat, hairy cow, then maybe I could at least offer my womb, that it might be almost as good getting knocked up by one. So I flew out and spoke to Oro," he said.

Just the mere mention of Oro's name brought a slight hush between them. River couldn't help but feel a hefty reverence for him. “What did he say?" he asked softly.

King smirked. “He caught onto me in a heartbeat. Told me that I didn't have to be some kind of broodmare if I didn't want to be. He'd love the chance to see what effects his little enhancements could have on a woman's body. And, well, I guess the rest is history."

A beat passed between them, and River could see right on King's face just how much happier he was. “That's amazing," he said, admiring King's hefty, manly form – a full-grown bull through and through, no doubt about it.

“Best part, I didn't have to give up getting knocked up, either!" he added.

River raised an eyebrow. “Really? You still have a working womb?" He didn't want to let his eyes wander too much, but given their perpetual nudity, he was pretty sure he would have noticed if King had a vulva, even if it was hidden by the flesh of his belly, ballsack, thighs, or ass.

“Of course! It's one of the last things you get when you finish your transformation," King answered. River felt the information impact him, sending a thrill of confusion and twisted excitement through him. King added, “Yep – you can look forward to that, too, when you're full-grown."

“Oh… wow…" was all River could say, his hand idly landing on his stomach.

King's gaze returned to the sky. “Oro hasn't wanted to take things too cavalier. But he gave his blessing for King and me to be the first bulls to have a child together." River leaned toward him, sensing the gravity of the admission, and King spoke more softly. “We've been trying for about a month now, every night. Hard to know if it took yet, or when it will, since I don't have a period anymore, but…" He grinned again, his hand resting on his own stomach, and said, “Babymaking's hard work, but I've never been happier. Taurus has already given me a body of my own, and a husband… I can't wait to have his child. A little cow of our own."

River's eyes felt misty, imagining it, King's prodigious body swelling with new life, nursing with those plump, hairy nipples, keeping a child warm with that furry chest and belly. To think that the bulls were capable of it, that his own body could one day do something so beautiful…

This was River's life now, and he wanted to embrace it. More than ever, he couldn't wait for his final enhancement.

Later that evening, River awoke from a nap after evening milking when he felt a shove against his side. He blinked his eyes open to the sight of Tony standing over him. Against the night sky, the older bull's huge bushes of thick, black body hair blended perfectly against the black of the Taurus nebula, the stars looking like his own speckles of silver that dotted his overgrown beard and dense pubes. All that he could make out was the points of his nipples amidst the jungle of chest hair and the massive, multi-footlong cock hanging and drooling into the grass over him.

“It's time," was all Tony said.

River rubbed his sleepy eyes, his own manhood resuming its drool as morning wood started to seize him. Behind Tony, he could see King standing with him, smiling eagerly, almost hopefully at River.

River just nodded. He didn't need to ask what it was time for. His chest fluttered and his stomach rolled, but his balls clenched and nervous sweat started to bead his form. Standing, Tony turned to lead wordlessly, through the tall grass, toward the fire glowing brightly in the distance. River followed close behind him.

It was time to see the Elder. It was time to meet Oro.

When River first arrived, he assumed he would meet Oro straight away when he received his first enhancement, but that wasn't quite the case. As Taurus had grown into a more robust community and stories of it had spread, many came for their own reasons. Taurus was distant and isolated, but not so much that a wealthy person couldn't fly a private ship to the planet looking to develop it on their own, or that shiftless drifters didn't find their way there, thinking Oro's enhancements were the missing piece of their lonesome lives. It simply wasn't feasible for the infamous researcher to meet with everyone, which is why the moment was saved for the ceremony of final enhancement. It was the moment when a man would finally become a fully-fledged bull, when he officially joined the community, and when Taurus became his home. Tony and King simply called it the Change.

“Now, the Change isn't going to be like your first few enhancements," King was trying to prepare River as they passed over the hills, further and further away toward that flickering beacon on the horizon. “And not just physically – this moment means more. It's a rite of passage," the hefty cow explained.

“It's your initiation. Into our culture," Tony added, barely looking over his shoulder at River, punctuating his remark with a simple scratching of his hairy ass.

River supposed that was all that needed to be said. At a loss for words, King didn't have anything else to add, just nodding at River with encouragement before trotting up alongside his husband, the two cows calmly resting their palms on each other's rumps in a touch that seemed more affectionate and passive than overtly sexual.

It was hard not to feel a little nervous. It was a day that River had longed for ever since he'd arrived on Taurus, seen his first bull, and taken his first enhancement. He'd wanted to Change more than anything else. Now that it was finally here, he feared something would go wrong, or he'd do something at the last minute to screw it all up. But he had to remind himself that he wouldn't be walking toward Oro's camp if he hadn't earned the right. He'd worked hard, been milked hard, and submitted to living the bull lifestyle. Now it was finally time to become one of them.

The white-flecked grass, blooming, almost seemed to reflect the black of the sky in this vast expanse, the mountains merely shadows on the horizon. But finally, River crossed this ocean, cresting the final swell of a hill to look down at Oro's camp nestled below at the valley of two hills. Like the rest, it was outdoors, but it looked much more like a home than a random patch of dirt. The firepit at the heart of it all was massive, fueled by something River couldn't have imagined, providing light and heat to ward away any night chill, even in the deep winter. A few lean-tos were stationed out of wrought metal and well-worked wood, and beneath them looked to River like lab stations. Some of them bore a variety of delicate instruments on their surface, others paperwork and notes, and one even had a working sub-light computer terminal, likely one of the only methods of accessing the intergalactic network on the planet. Yet River could still see signs of life – discarded bones or tins still flecked with leftover food, a patch of moss pressed down firmly as Oro's bed, or a weathered old guitar tucked away, peeking out from behind a desk.

But it was hard to take in all of the details as River followed Tony and King, descending the hill, and he finally saw the Elder himself appear before him as he moved around the immense fire. River felt his breath leave his lungs when he saw him, Oro – in the flesh.

The old bull loomed larger than life, towering a head taller than even Tony. Much of his form River could anticipate – his body hair was thick, white with his age, although glints of faded yellow still remained at his cheeks or in his pubes. His beard was the biggest of them all, a massive, white swath that cascaded down his chest and toward his crotch, yet also smothered his face, leaving only the point of his nose and his eyes exposed, while his receding hairline behind his dark, curling horns sported longer, stringy hair that made him look somewhat like a yeti to River. Yet in other ways, he wasn't the goliath River expected – his arms and thighs were big, showing plenty of muscle and thickness for his size – but his manhood didn't actually look quite as long as Tony's, only wobbling between his knees, girthy, but somewhere between the two other full-grown bulls in size. However, what was remarkable about his body was the size of his chest, his pectorals immense and heavy, not quite like female breasts, but still clearly weighed down with thick deposits of milk supported by huge slabs of muscle that dominated his form, along with the biggest nipples River had ever seen. Similarly, his balls were also titanic, forcing Oro to stand with his thighs parted, dwarfing the other two's nuts by at least double, his saggy, hairy fruits dragging down to between his knees as well, swaying with the weight of his immense semen production. Strangely, however, his cock didn't drool the constant torrent of precum he expected. He didn't even leak the steady stream that the others did, and his nipples didn't passively dribble milk the way that Tony's did. Somehow, Oro had managed to achieve perfect control over his body, no matter how powerful it was.

Still, these weren't the only details that caught River's eye. As Oro approached him, he moved with the slow, sure gait of an old mountain man, an experienced outdoorsman rather than a clinical, brilliant scientist. River could see that he was just as much a creature of the body as he was of the mind; what bits of skin he could see beneath the thick curls of white body hair were tanned, weathered, and worn into a rough hide. Scars crisscrossed his arms, legs, chest and back, and River could see where the ferocious wild beasts of Taurus's vast wilderness had tangled with the old bull, the protector of the community hear living on the borders of town and the unknown. Yet there was more to see, Oro's body telling his story – a bald patch on the pubes growing up his cock where he gripped himself to masturbate, crow's feet at his eyes from squinting in the dark at his research, and stretch marks along his soft belly and hips that made River stop and stare. Oro had gotten pregnant and given birth, likely multiple times. River could only wonder where his children were, or if they had survived; if they were born of love, or merely a desire for progress, a burning need to know what was possible.

Finally, Tony and King stepped aside, and River stood before the Elder. The old cow looked the younger, Unchanged bull standing naked before him and said, “I know you, River, yet you do not know me." His voice was deep and rumbling like distance thunder, yet not harsh or gravelly – worn, but tender, like the big cow himself. “You know of me, but you do not know me. I am Oro," he introduced himself. “You have come because of my research, to become a bull. Many young men do, seeking virility and sexual thrills. These are the same things that motivate all of us – maleness and sex are part of what it means to be a bull. But they are not all that we are." River could hardly speak, but Oro crossed his arms, his hairy, muscular forearms sinking into the bushy, milky flesh of his immense tits as he continued, “I have observed you. From the beginning, I thought that you might be suitable to Change. That you could understand us. That you were fit to be one of us. You have worked hard, been milked hard, given your milk and your cream to our people freely, lived in the grass and under the sky. You have learned to call Taurus your home."

“It is my home," River replied with a nod, sweating profusely from his nerves, excitement, and the heat of the roaring fire behind Oro that similarly made the big Elder cow glimmer, the hairy bushes of his back, thighs, and ass dripping sweat in huge rivulets. “I'd do anything for Taurus. I… I want to be a bull!" he insisted.

Oro nodded, but River couldn't even see if he was smiling for the thickness of his white beard. “Tonight, you will be. You've earned the right to Change. To give your body to our ways. To feed our people will your milk and your semen. To bear and birth our children. To become one with Taurus." Oro reached out to put a big, warm, rough hand on River's shoulder and said, “You came here because the idea of becoming a bull excited you. It was a fetish, a raw desire. But now you will see the greater path your desire has led you too. You wanted milk, and now you will drink of it, and give your own. You wanted to cum, and now you will cum to sustain our way of life. You wanted to be strong, manly, virile – you will embrace strength, manliness, and virility, and you will find community, love, purpose, and peace."

River nodded, speechless. It was a grand moment, a rare one, when one could feel his destiny cresting upon him, peeking over the horizon for the first time at the promised land beyond. At last, River was ready to enter. It was time to Change.

Tony stepped forward to River, his heavy chest at eye-level with River's face, and Oro continued, speaking like a sage as the rite begun. “Drink his milk. Taste its nourishment; embrace the lust you feel as you do so, and know that your milk will likewise feed the people of Taurus."

Tony simply looked down at River, raising an eyebrow expectantly. River nodded, stepping forward. He discarded the last of his shame with an exhale, taking Oro's words to heart. Yes, his cock was already getting hard at the thought of this, but it was a good thing; his arousal was part of what made him a bull. So he closed his eyes, extended his hands to grope and squeeze Tony's muscular chest, and opened his bearded lips to latch onto the thick nub of Tony's nipple. Already, droplets of white milk leaked from his chest. As soon as River pushed his tongue against the hairy bud, he tasted a thin tang of sweat, but then thick, sweet, creamy flavor that spread across his tongue. When he pulled, suckling, it flowed easily, practically streaming down his thirsty throat. Tony just sighed, holding the back of River's head, not quite tenderly, but confidently, making sure he didn't stop. River repressed a moan in his throat as he drank and drank.

Oro, satisfied, continued, and River suddenly felt King's ass on his hips, tugging him backward, making him bend over into Tony's body as King's thick digits started to spread his hairy cheeks. Oro spoke, “Take his manhood. Feel him fuck you; embrace the strength of a bull, and allow his cum to fill your body to your very core, knowing that it is the seed of new life, a precious thing, the sacred essence of a true bull."

River didn't even have time to respond or acknowledge the words, and his mouth was full of Tony's milk besides. First, he felt the warm ooze of King's bubbling, hot precum dribbling over his asshole, sliding down the crack, through the hair between his cheeks and his taint before slipping down his ballsack. No sooner did the heated shivers finish traveling up his spine did he feel the lance of hot flesh press against his hole with a little wet squelch. Before River could even react, King pushed inside of him all too easily, spreading him open, sheathing himself deeply inside River's rear.

It wasn't at all like the feeling of the milking machine's rubber dildo pushing into his asshole. That rod had some girth to it, but ultimately it was made to be a straight point drilling directly into his prostate, efficient and designed for a narrow target. River felt his hole opened up wider than ever with King's girth, his body stretching gloriously to accept the turgid staff of bull meat shoving itself inside of him, hot and needy itself. And it didn't stop at his prostate; King's cock filled him, inch after inch, easily lubricated by his slick precum that coated River's asshole and King's own manhood, a wet pealing noise filling the air as he slid deeper inside. The feeling of fullness was incredible, but there was so much more as well: the pulse of a hearty throb in King's dick, the slight give to the hardness of his flesh, the warmth of his hot body, the smell of his musk mixing with Tony's in front of him, and even the way the smooth flesh of his upper shave gave way to the coarse tickle of pubes as River took him to the hairy base. When he finally felt the cushion of King's bush on his big, wide rear, accompanied by the heavy clap of King's fat, fuzzy nuts against his own, River felt his own cock throb and yield a hefty glob of precum into the dirt below. He moaned into the nipple into his mouth, thick milk dribbling out of the corners as he lost some of his grip on the latch.

Then, King's fingers dug into the thick flesh of his ass, getting a firm hold on his hips. River barely had time to prepare for what came next as King started to fuck him. His hips drew back and snapped forward, not bothering to build up tempo, quickly setting a rough pace as he bounced his hips against River's jiggling bottom. Each driving thrust sent well over a foot of cock into him, spearing into his body and making his insides wrench with a warm, melting pleasure, and River felt his own nipples throb, his cock tense with hardness, and his balls ache as they were similarly clapped by King's own pair. Soon, the fireside was filled with the sounds of husky groans and sweaty, rough sex, the deep grunts and splattering fluids the telltale signs of bull sex.

Each thrust drove River deeper into Tony's chest, and soon River felt nearly smothered by the big, hairy, sweaty cows he was sandwiched between. Tony's nipple thickened enough that it filled his mouth almost completely, and he struggled to gulp down the milk as he was fucked hard between grunts and moans, the excess fluid soaking into his beard before dribbling into his chest hair. Each thrust of King's immensely thick cock felt like it would split his asscheeks in two, not just making his prostate throb between his legs like the milking machine, but the excess of flesh, of sweat, hair, muscle, and everything that the bulls were overwhelmed River in the best way possible.

River could only speak long enough to fill the space between popping off of one of Tony's leaking nipples before latching onto the next. “Oh fuck, you guys…!" he groaned before the only sounds he made were his own deep grunts and wet suckles as he feasted on Tony's unsucked nipple.

“That's it," was all the reserved, darker bull said, but his grip in River's hair, pushing his face into his chest, forcing his nipple nearly down River's throat was anything but gentle, and River could see his own immense cock rising to full hardness between them, the huge length looking like it might erupt on its own at any moment.

“Yeah…! Oh, man, River, your ass is so incredible…!" King moaned out himself, flinging his sweaty head back, the droplets glinting against the night sky like the countless stars above. His stance widened, hips pounding harder into River's ass as the pleasure and heat between them built. Somewhere in his mind, River could feel the intimacy that passed between King and Tony as well, the two lovers united in the shared experience of sharing River's body, of initiating him into this fraternity of human cows. Their hands didn't reach out for each other, and their bodies didn't stop dominating River, pounding into his ass or pouring warm milk down his throat, but an exchanged, lingering glance was all they needed to share the unspoken love they felt in that moment. River swore he could feel it passing between him, his body a medium for their affection just as surely as it was impaled on King's cock.

But their bodies could only stave off the inevitable for so long; within minutes of the act beginning, climax began to crest on the horizon. King was first, sweat pouring down his back and dripping off his heavy chest as his rocked himself into River's big ass, his belly starting to smack into River's rump with his whole-body thrusts. “Yes…! Ohh, I'm gonna… Oohhh! Mmoooooooo!" he bellowed, hilting himself deep within River's body, planting his dick deep within him, mashing his pubes to River's asshole and his balls into River's smaller pair.

River's eyes went wide when he felt the eruption of hot cum start to fill him. He'd felt immense amounts of fluid leave his body during the milking process, but he'd never been stuffed full like this before. His mind could hardly conceive of what was happening, immediately a heavy, bloating gush of thick fluid filling his guts in an instant. A flash of panic crossed through him; he knew how much bulls could cum. He was certain his body could never take it all, it would make him burst at the seams if he tried to accept it. He pushed and squirmed, trying to free himself, but King's grip on his hips was tight as could be, as was Tony's digits clenched tightly to his scalp. The sensation of fullness grew almost unbearable, but as he felt more and more cum pumped into him, there came with it a deep satisfaction.

Deep down, it was what he always wanted, the craving that had led him to Taurus in the first place. Not merely to be one of these fabled bulls, but to be with them, to be fucked by them like an animal in the grass. If it was going to ruin his body, well, it would still be the apex of his life, the moment when all his dreams came true.

“Mmmmmmffffffnnnnggg!" came River's own bellow, his body trembling into Tony's chest as he started to cum as well, overwhelmed by all of it. His body jerked, his cock spasmed, and soon pints of thick, heavy bull cream were splattering into the dirt beneath the rutting trio, quickly forming a spreading puddle at their feet as his balls emptied themselves. His body writhed and shuddered with utter delight, and it was only the other bulls' grip on his body, King's cock buried deep in his guts and Tony's grip on his head that kept him upright. The milking machine could force an orgasm out of him, but nothing could be as overwhelming, as deeply satisfying, as an orgasm borne of hot, sweaty, hardcore bull sex.

River came when he felt his body was at the point of no return, when he simply couldn't take any more of King's cum. But King didn't pull out, continuing to pump him full of cow cream, and somehow, River's body accepted it. He felt his belly bloat and his insides groan, but the pressure started to level out, the sensations spreading throughout him, mixing with the deep pleasure and satisfaction and fullness of his own orgasm. It was as if his body was made to accept bull semen, was made for sex with other bulls. He knew he wasn't completely one yet, but he wanted to be so badly, to take them, to taste them, to give like they did. His appetite was immense, and he filled his belly with Tony's milk greedily, knowing the bigger man's tits would always have plenty to give him.

When the haze and delirium of pleasure wore off, and King resumed pumping into him with hard, fleshy claps into his ass, River groaned as he detected Oro beside him. Despite the gravity the old white cow carried, River didn't dare stop his lustful frenzy with the others.

“You have begun to Change," Oro said assuredly.

River moaned into Tony's hairy chest, whiffing the musk rolling off the black curls as he swallowed more milk, throwing his hips back into King's thrusts, but he didn't understand. Where was the final enhancement? Oro had in his hands only some bits of metal, not unlike the scrap River gathered, but polished and worked correctly. He carried no injection or serum with him, nothing to carry out the final transformation.

Oro seemed to anticipate River's confusion. “The final enhancement is not something that can be concocted – at least not easily. I was lucky to stumble upon the formula, and it nearly killed me," he admitted in his rumbling voice. “It is possible it could never be replicated. But it need not be, not in a chemical form. The combination of hormones and genetic modifiers you require to Change, to become one of us… You have already begun to accept them into your body."

River's eyes widened, still sandwiched between the two men rutting him. He started to understand.

Oro continued. “We bulls contain the means of our own reproduction. Our milk, our cream, are laden with the necessary components. Our young, nursed and sustained on our bodies' bounty, will no doubt grow into bulls themselves. The other people of the valley will likely see only minor changes. It is only when they have been primed by the first enhancements, and when a properly prepared cow receives a large amount of milk and cream all at once that the final Change can occur naturally." Oro reached out to stroke River's chest, his udder-like pectorals hanging beneath him, sweaty, hairy, and full of milk, his nipples hard. “What you are experiencing is an act of sacred communion, you might say. One day soon, we will not need needles or injections. We will reproduce ourselves; we will thrive with our own culture and our own ways, built on giving, on sustaining life and harmony with our bodies, with our sex. On that day, there will be no guilt or shame from our origins on the Earth and its ways. Our home will be Taurus, and we will celebrate our new way of life. We will drink, and we will cum, and we will make love to each other, and through these things, we will live and sustain new life, a new species."

River shuddered as he came again, reaching out now to grip Tony's immensely long cock, pumping it aggressively as King fucked him harder, cumming inside of him again as well. The gurgling sounds of bull semen filling and bloating his stomach grew louder as seed splattered wetly into the cum-soaked mud beneath them, but River loved it. He started to see Oro's vision, and felt whatever vestiges of his old life remained slowly fading away as he embraced the new. Already, he felt his body tingling, his muscles tensing, pumped up, his body absorbing the nutrients fed to him from the other bulls' bodies. Even as Tony grunted, stroking the base of his cock to finish himself off, River felt no shame when more pints and gallons of cum rained down over him, painting his face and coating his hairy back and ass, sliding down between his cheeks where King was pounding into him. It was the way they were: it was part of what it meant to be a bull.

With movements heavy with meaning, Oro, now sporting a mighty erection himself, stooped next to the bent-over River, continuing to feel and grope his body. “You have worked hard to prove yourself to us, and your desire to be one of us. I have no doubt our community will benefit from your addition, and that you will make a great cow. Perhaps the best we have yet seen," Oro praised him. He held up a metal object, a semi-loop, tipped with slight, rounded ends. Oro carefully unscrewed one of the ends to reveal a sharp point as he said, “Accept these gifts, wrought of your own sweat and labor, and become one of us. Accept your brother King's cream, and your brother Tony's milk, and join us in giving your own to our people."

River hardly felt the stab pierce his nipple, merely grunting low as King continued to fuck him, as he continued to stroke Tony and swallow his milk. The sensations all blended into one; the two jabs into his nipples before Oro capped off his heavy pecs with iron horseshoe piercings, and then a third sharp point into his oozing cockhead that felt like a pinch or a nip of teeth at his frenulum, anchoring his foreskin with a third horseshoe, buzzing madly with his arousal in this most sensitive place.

The grandest moment of all, however, came when suddenly the two other bulls left River. King pulled out of his ass, emptying a flood of cum out of his abused hole, and Tony's nipple popped out of his mouth, cum and milk splattering his face. Even after having swallowed so much, he still felt needy, hungry, empty inside and wanting more. But he didn't fall to the ground; his chin was held in Oro's grip, and River could only look up at the massive Elder, the huge, hulking, sweaty, hairy, gentle bull standing over him like a father, a proud gleam in his eyes.

The white bull had one final, iron ring in his meaty fingers, and it gleamed like polished silver in the light of the moonless night above. Wordlessly, he stroked River's jaw in one hand before gripping his nose. The pointed portion of the ring then punched through his septum, but River only felt the dull pressure, gazing up into Oro's warm eyes.

“It's time," Oro then said softly. “I've been hoping this day would come for some time now. Welcome, River."

Oro gently directed River's mouth lower, nudging his broad cockhead against River's lips. River opened his mouth and started to accept the Elder's penis inside. There was no pain or struggle or resistance. Every inch flowed into his throat with ease, and both men moaned softly. River suckled gratefully, lovingly, and he felt a deep tenderness inside of him as he worked to pleasure more and more of Oro's shaft. He took him all the way down, twisting and slurping on his girth, pushing his lips past the point where his pubes grew up from the base of his erection, until he planted his new nose ring into the musky white bush at the base.

“Ahhh…!" came Oro's soft gasp, and then the soft, rumbling, “…Mmmmmooooooooo!"

River tasted the pulses of cream as they spurted from Oro's pulsing shaft in his lips and throat, and he reached out to caress the massive, hairy nuts that fed the sweet, thick, hearty cum to him. River could practically taste the potency, feel it working and changing him from the moment it hit his belly, mixing with Tony's milk and King's own cream within him. But more than anything, he could taste Oro's genuine love for him in the cum, feel the Elder's pleasure with every clench of his body, and he wanted more of it.

River shuddered as he began to change. His own body erupted with a mind-blowing orgasm. And then, everything went white.

Again, the encroaching brightness before daylight pushed through the haze of River's sleep. Again, he awoke to the feeling of dew clinging to the rugs of damp hair on his body, and the soft grass matted beneath his immense weight. And again, he cuddled into the Elder bull behind him, whose arm was wrapped tightly around his waist, his fingers splayed over his fuzzy belly, his cock pressed warmly between his plump, hairy cheeks.

“It's time to get up," Oro grumbled into his ear, rubbing his stomach affectionately.

“It's not even sunrise," River complained, a smile at the corners of his mouth.

“Up," Oro insisted before shifting, slowly getting to his feet, one creaking joint and sweaty stretch at a time. River just rolled over, his body missing his absence, but looking up at the big white cow standing overtop him.

The Change almost seemed like a memory. River could hardly remember what it was like to not have horns, to not have his immense manhood and plump balls hanging below his knees, his heavy chest full of milk, or the pleasant, simple throb in his muscles that accompanied him throughout his day. His thoughts seemed clearer, less anxious; he felt more like himself than he ever had before. Almost everything about him had grown bigger, hairier, heavier since the Change, and he looked more or less just like King or Tony. He was still a bit smaller than them, but he knew he'd grow quickly over time. The most dramatic change he'd experienced that set him apart from the others was the growth of his butt; now his rump was thick, meaty, bubbly, and jiggled plentifully with his movements and any touch. The crack was always a little damp and sweaty with the thick hair that grew around his asshole, and his backdoor itself seemed thicker and more sensitive than it was before, yet also accepted another bull's cock more easily than ever. His prostate, likewise, seemed to have swelled as well, not to mention the widening of his hips to accommodate his new rear end. Oro had said he looked like a born-and-bred breeding cow.

River couldn't help but touch his plump, hairy stomach whenever he thought of those words. King was already celebrating his pregnancy with Tony; he wondered how long it would be before he felt life quickening inside his new womb as well.

Oro's presence above him was steadying and arousing at once. The sight of the huge bull's hulking, hairy, sweaty form inspired his desire, but now that he was a bull, that desire didn't burn inside of him the way it did before. It was a constant companion, a dull sensation in his balls and prostate that wanted to be satisfied, but with it came a pleasant anticipation. River looked forward to sex the way one looked forward to a good meal, knowing it would come and celebrating the time when it did. And like any good meal, it was a time that brought him closer to those he shared it with, bonding in a moment that was both a physical need and a cultural act.

Still, Oro noticed the way River gazed up at his massive cock and big, hairy balls. His beard hardly moved when he said, “Not yet. It's time for milking."

River nodded, getting to his feet slowly as well. His manhood strained to achieve a full morning wood erection, but he had no doubt his body would respond. A part of him missed the machine back in the barn, as he hadn't seen it for some months now, but he wouldn't trade his time with Oro just to get pumped on a milking bench.

The peaceful days made it difficult to remember quite how he ended up this way as well. After the Change, he'd become a full bull, just like the others. He slept in the pasture still, but when he was milked, his milk and cream was at last added to the reserves, used to feed the community. After the morning milking, there was still work to be done and scrap metal to gather, but in his wandering of the hills he found himself drifting more and more to Oro's encampment. Tony and King warned him that Oro preferred to be left alone most of the time, but River wasn't quite so sure.

Whenever River got close to the camp, Oro didn't turn him away. He'd put him to work or milk him to test his fluids and their contents. He'd talk to River, almost like he'd talk to himself, but the presence of another body seemed to help him think. River didn't disturb him or interrupt him. He merely lent his presence to Oro; whatever the Elder needed.

Most days, it was an extra hand and a quiet ear. Some days, it was a few gallons of milk and cream, or a cup of sweat, or even a vial of blood. And one day, it was a night of rough, passionate, sweaty fucking to help clear his mind and alleviate his urges. River was happy to provide Oro with all of it. Anything to help the father of their kind, the progenitor of their entire species.

After that night, River could sense the loneliness within Oro, a loneliness the old bull probably wasn't very aware of before that night either. He started coming around each day, and Oro spoke with him less and had sex with him more, acclimating to his presence at his side. About a month ago, River simply didn't leave the encampment, and Oro didn't ask him to.

It wasn't all rough bull sex and milking. Oro was still, first and foremost, a scientist, and from what he'd told River, his experiment with the creation of the bulls was only just the beginning of his goals. He'd succeeded in the first step of the plan, but there was so much more he believed his enhancements could do: eliminate disease, ageing, even a need for food or sleep. He envisioned a world – a universe – where his men were the perfect creations, able to sustain themselves forever, and perhaps even sustain humans alongside them. It was hard to know what sort of future Oro envisioned, but if it wasn't a future where bulls and humans lived together peacefully, with nearly all need and suffering eliminated by the bulls, then it was a utopia for the bulls, worlds in which they forged their own paradise of life, sex, and love.

The milking was only partially for Oro's research. Oro had advanced himself enough, with his own enhancements and simply his own age, that he could exist indefinitely without being milked, suffering no adverse effects from buildup of his body's products. But for River and the others, a lack of milking could quickly become deeply uncomfortable. Yet for River, it had become a time to aid Oro with his research by providing valuable fluid samples, a time to fulfill his body's needs, and a time to be close with his lover.

It was a routine now, one that happened wordlessly, utterly familiar. With the embers of last night's fire still smoldering in the pit and dawn's light rolling down the nearside mountain slopes, River stood as Oro moved behind him, spreading his thighs and placing his hands on his hips, presenting his body. Oro began with River's nipples.

One hand slid beneath his burly arm, the white bull's limb so thick with muscle that it nearly filled the space completely, reaching up and around to take the ring piercing the bud of flesh between his fingers. The other hand grabbed a sizeable metal flask and brought it around his body in front of the nipple. River exhaled as he felt those fingers tug at the ring, stimulating his nipple, quickly engorging with the tingling sensation of the metal pulling at his skin. The faintest touch alone made his white milk start to trickle now, his hairy teats heavy with a night's development.

“Mmmm…" River groaned when he felt those fingers release the ring, moving up to start to grope at his pec with more of his hand. His grip seized his full, sensitive flesh, squeezing, drawing the pressure beneath toward the nipple. Oro milked River by hand, and at the very first touch, a heavy stream of milk began to flow, pattering into the metal flask below.

Oro's touch was warm, his body heavy and sweaty behind River's form, but his movements were methodical, scientific. He repeated the milking motions, drawing the fluid out with practiced ease. When he had half the mug filled, he switched to the other nipple, leaving River panting as his cock started to throb and harden with building arousal. This technique wouldn't yield nearly as much milk as he could with a machine pumping him, but it was worth it to feel Oro's touch on his chest.

It wasn't long before the cup was filled, and Oro withdrew momentarily to set it on one of his research tables. Wordlessly, he simply retrieved a bucket, dropping it with a thud at River's feet. “Arms above your head," Oro ordered plainly.

River complied, a waft of his thick, sweet, rich bull musk wafting from his bushy, sweaty armpits as he assumed the pose. Beside him, Oro's nostrils flared from within his bushy beard, taking in the younger bull's scent with relish, but his body showed no obvious signs of arousal. He simply took his place beside River, grabbed him by the base of his massive, throbbing, oozing cock, and started to pump.

“Mmmmoooooohhh…" River moaned a bit louder as Oro started to milk his balls. His grip and strokes weren't meant for pleasure; instead of the attentive sliding of a lover, Oro's pumping was the brisk, firm touch of the ranch hands, extracting a resource from River's body. But with the Change, his body was now all too eager to comply. The precum that drooled thick into the bucket became thicker, milkier almost immediately, wobbling with the motions of his heavy cocktip around the piercing in his frenulum that only made his pleasure rush upon him faster. River felt his body clench and his balls tighten quickly, his flesh sliding with Oro's practiced, methodical strokes, unable to resist giving in. “Mmooooooooo…!" he moaned when his climax came upon him, and heavy gouts of cum quickly gushed into the bucket, filling it with ease before flooding the dirt around it in a sticky, gooey mess as his balls clenched and seized.

But before River could even fully recover from the climax, Oro was already at his research table, donning a pair of adorably small reading glasses against his huge head, using one of his many devices to process the results. “Very good. Healthy," he noted, although River knew his interest wasn't solely medical.

With a chuckle, River came up behind Oro, affectionately landing a palm on his hairy ass as he asked, “What are you looking for?"

It was a moment before Oro answered, his hand combing through his great beard to search for his chin one moment, then scratching his head or wiping sweaty from his armpit the next. “Your testosterone levels are surprisingly high compared to the other bulls, but your sperm count isn't quite so high. Yet the nutrition levels in your semen is some of the best we've seen." River knew better than to ask, letting Oro check the results displaying on meters and screens in front of him before he gave his conclusions. “Perhaps testosterone in bulls doesn't merely promote muscle and fertility development. Maybe… it does the opposite, with higher levels preparing a bull for pregnancy and child-rearing. Or… maybe bulls' testes develop a variety of testosterone-like sub-hormones…"

River felt a tingle run down his spine at the implications of that, but he knew Oro needed to explain, and wanted to. “So, what are you saying?" he asked.

The question finally got Oro to look up from his readings and down at the other bull. “I'm saying that male hormones might not be responsible for a bull's traditionally masculine growth, and instead might govern our fertility and ability to bear children." He seemed to think for a while, his gaze cast aside as he rubbed his chin again before returning to River. “Would you agree to trial more hormonal enhancements?"

“You… want to see if they improve my fertility?" River asked, again his body sweating, throbbing, shivering at the implications.

“I want to see if they improve your body's preparations for fertility. More milk, more nutrients… a bigger ass," he nodded down at River's rump, but River could see that there was no arousal or personal desire behind the Elder bull's words. Just a scientific intent.

“I'd love to, of course," River said.

“Fantastic. Let me try one of these older enhancements, their hormone content is higher-" Oro began. Opened a special case and started to dig through vials, holding one up to the brightening sunlight of full morning.

River's touch on his chest stopped him, made him turn and look at the younger bull with a raised brow. Working up his courage, River met his gaze and said, “I'll do it, but… as part of the test, I want you to… impregnate me."

Oro's eyes, hidden behind his beard and bushy brows, widened with surprise. “Impregnate you…?" he repeated incredulously.

“Yes," River repeated, his voice soft but firm. “I… I want you to make love to me, Oro."

Oro's gaze lingered for a moment as he reached out to tentatively place his palm on River's bearded cheek, but then his eyes faltered. River knew it was a difficult ask for Oro. Despite his incredible size, power, and virility, Oro was a beast of the mind, not of the body. But that was exactly why River had to make the request.

“Yes," Oro said, his voice barely a murmuring rumble. “Yes, it's been… some time since I've had any release myself," he agreed. But then his thumb stroked along River's cheek as he said, “But… making love? Having a child…?"

“Do you not want to…?" River asked, worrying he'd overstepped his bounds.

Oro quickly shook his head. “No, I do, I… I always wanted to be a father, with another man, I just… It always felt like something that would happen in the future, when my research was over."

River placed a hand on Oro's chest. Softly, sincerely, he simply said, “Oro… I'd be honored."

Now, his eyes gleaming brightly, proudly, Oro nodded, the hints of a smile showing through his beard. “Yes, River. Let's… Let's make love."

With the same direct, overwhelming attention he showed to his work, Oro leaned down to pull River's big, hairy body into his own and plant a firm kiss on his lips between the parts of their beards. River kissed him back, eagerly, hungrily, happily.

The sun had barely dried the dew from the hair on their backs when Oro took River down to the bed of grass again. They kissed passionately, heat building between them. River could feel milk leaking freely from Oro's chest, his cock stiffening to hardness as gushes of precum oozed from him; the passive control that kept his body's production in check finally released. The fluids smothered the two of them, soaking them, but it only made River's hands grip Oro's shoulders tighter, pulling the bigger cow into him as his thighs spread.

Oro took his position over River naturally, his massive cock finding River's plump, hairy hole with ease. Lubricated with precum, it slid in with a wet, pealing squelch as Oro thrust himself inside, their lips parting only to moan.

“Ohh, River…!" Oro grunted.

“Yes…!" River gasped in response.

Oro wasted no time pumping into him, building momentum slowly as his hips drove River's body down into the grass. River wrapped his hairy thighs around Oro's waist, offering his body to his lover. The great bull was huge in every sense of the word, but there was no discomfort at all with the fullness. There was only milk, sweat, and pleasure as the momentum build slowly, like a steam engine building speed, until finally Oro reached a breakneck pace.

Each thrust slammed River with enough force to break a normal man's bones, but his big, round ass was built to take the punishment, his insides clenching to receive Oro's gargantuan manhood as his massive nuts slapped his cheeks with loud, fleshy smacks. River had never been fucked so hard in his entire life, but even more than the toe-curling, orgasmic pleasure, he felt a deeper sense of peace, satisfaction, and fulfillment like he'd never known before.

He gazed up into the eyes of the bull fucking him – breeding him – and everything in his body wanted it. “Oro…!" he moaned, his own balls tightening as his climax built.

Oro just nodded, sweat pouring down his face and chest, but he was with River, in that moment of passion and creation, together. “River…"

Oro's hips pounded harder, his cock pistoned deeper, until finally, the two could contain themselves no longer.

“MMMMMOOOOOOOOOO!!!!!"

River felt gallons and gallons of Oro's thick, virile seed pumping into him, filling every inch of his body, his gut bloating quickly with the potent load while his own cum blasted every which way, coating their sweaty chests and bellies between them, matting the hair with gooey stickiness, pleasure seizing both of their bodies.

Together, they felt the moment was immaculate; the pleasure intense as worked to create new life together. Oro had already given River the gift of being a bull, but now he would give River the gift of his child.

And in River's belly would grow his gift to Oro: the continuation of his work, the birth of a new bull. Through their hot, hard, sweaty, cum-splattered lovemaking, the race of bulls would live, grow, and thrive on Taurus, their own world far away in the deepest corners of the galaxy.