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This giant black shire was more than just nice, Basil thought, he was really really affectionate. He was giving the boy a very thorough tongue-bath, slurping quite firmly over every single inch of his body. The shire seemed especially interested in the boy's growing equine parts... dragging the huge wet muscle over the boy's extra-large equine ears over and over, even wiggling his tongue's tip along the inside which got Basil to giggle. He kept teasing the silky soft flesh in there while drenching the boy's ears to the point they were both oozing with the eager stallion's drool by the time he was done. From there, the shire kept working his nostrils and enormous tongue down along the boy's neck, over his chest and belly, swirling his tongue repeatedly on Basil's belly button, giving him another lengthy pleasurable tickling that had the boy's toes wiggling as he blushed and let lose another innocent giggle. "Hehehehee, ohhh... ohh" he flicked his horsey ears down as he then felt the huge shire's tongue starting to drag over that adorable but insanely erotic white-fuzzed flesh of the boy's heavy sheath and balls. "Ahhh... that feels... feels good Mr. horsey. Ohhhh" he moaned again, curling his toes sharply as the horse's tongue slurped in and out of his sheath opening numerous times, layering it with many helpings of saliva and his own precum. The boy's fat equine cock started to hang out, webbed up already with the saliva and pre mixture and wobbling around while the shire took even more deliberate attention with the boy's heavy spheres. "Ohhh... Mr... Mr horsey... ohh they're so tickly" the boy panted and moaned as he experienced such dramatic throbbing in his backed up balls while the large shire started rolling and slapping those heavy creamy grapefruits around and up and down with his huge tongue.

Although stallion Blake had his memory back, his thoughts and desires were all muddled and mixed by the shire hormones surging throughout his massive rippling body, and the scents of his little brother's impending colthood were intoxicating. He dragged his huge nostrils and tongue up and down over Basil's chest, then over his fuzz-coated belly... it seemed like the swelling there had gone down quite a bit, just a slight bit of chubbiness now... At the same time, the boy's equine butt seemed to have filled out more, bigger... better than a pony's. Blake kept his eyes on his little brother's budding draft-horse flanks while working his big nose up and down over the sides of the boy's heavy nuts, huffing up more of that sensually creamy musk scent, using the vacuum created by his big nostrils to lift each fat sphere in the air before letting it flop back down against its gleaming twin. Then he worked his tongue along the sides of each sphere, making them bob and smack together with a series of soft, wet slapping noises while Basil gripped at the hay and moaned delightfully. Not only was Basil's scent delicious, but his taste... his young equine musk was laced with that strange sweet, cream flavor that was horribly addictive. He couldn't imagine where the boy got it from... Blake clenched his eyes a moment, just barely managing to pull his muzzle off his little brother's heavy bobbing nuts. He'd save those for later... Now, he wanted a closer look at the boy's cheeky equine butt.

Basil blushed and gasped a little softer when Blake left his swollen nuts to sag back down over the side of the hay, lowering his ears slightly as Blake's big head moved around his hip to his butt. Realizing what the stallion wanted, the boy leaned forward a little, holding the edge of the haybale with his hands while lifting his butt obediently for the big shire to inspect.

"My my... what a well behaved colt..." Blake nickered to himself... then shook his head, a little embarrassed "Ahhh... I mean good... B... Basil..." he panted, his thoughts a little muddled again. Before he could make any other weird statements, Blake shuddered and turned his big head down towards the uplifted flanks, pressing his nostrils between the younger boy's large, plump white fuzzed cheeks. They felt hot... and that sweet creamy musk scent was there too, tickling his nostrils. He huffed between them for a moment, heating the boy's butt even further with his powerful puffs of air while his own big shire cock jerked up and slapped his belly several times, expanding inch by inch gradually, over two feet as his excitement grew again. Basil flicked his white ears down and made a couple cute "Ohhh" sounds, the boy blushing particularly hard as he watched the stallion's gigantic cock swinging about. "Yer... such... a big boy..." Blake's pride swelled again hearing the amazement in his little brother's voice, his tail lashing eagerly as he took in more of Basil's scent and enjoyed the feeling of the boy's young horsebutt flexing with its blossoming strength around the intrusion of his muzzle. Now Blake started slowly working his huge equine tongue along each of those juicy cheeks, getting them glossed over with his saliva and eliciting a few more cute little moans. The stallion worked even harder, pushing more forcefully with that big powerful tongue of his. He explored the fuzzy flesh of the boy's swelled out taint, rolling his tongue over the bulge of the overinflated prostate. The boy whimpered, toes curling and his creamy white buttcheeks flexing again with each stroke. Blake continued tonguing up farther between the cheeks, feeling the plump black flesh of his brother's equine boy pucker. He tested it with a few firm thrusts of his tongue, feeling it stretching... then stretching even bigger... amazingly big as he plunged more tongue in and bobbed it around inside. Basil made a couple "Ohh... Ohh" sounds, struggling to hold his quivering butt still against the giant muscle while Blake casually tonguefucked him for about fifteen long seconds.

Blake pulled out with a very wet, oozing splort of saliva following his big tongue and drooling down over Basil's cute taint bulge. His little brother's equine flanks were almost perfect, he thought... with just a little more growing... and once the tail came in. And it would all be for him. ALL of it... He wouldn't share with Fascinus... He huffed a couple more times over the boy's pretty horse butt while remembering what Fascinus did last time with Basil... and felt a twinge of jealousy. He would do it... he'd do it even better. He would make Basil feel ten times better than Fascinus did. He lifted his head up over Basil's body, licking along the outside of the boy's ears a few more times while Basil sat his butt back down. "Hehe... hehe tickles..." the boy giggled again softly while flicking his ears. Blake snorted and reared up over him, his giant forelegs climbing up on the hay behind the boy to position Basil under his angled belly and slap the blushing boy's thighs and belly with that titanic shire cock. Several big gooey strands of his precum flung over his little brother's soft skin and milky white fuzz. Blake felt another surge of pride and excitement as he showed off nearly two and a half feet of stallion cock to his brother, showing his... his colt... the immense pleasure tool that would be used on him, and getting a very very satisfying gasp of amazement from the sweet boy.

"Ohh... yes... my little colt..." Blake nickered to himself as his thoughts drifted again while starting to roll his huge powerful haunches back and forth, forcing the enormous head of his black draft cock to drag up and down along Basil's slightly chubby belly, then down over the left side of his plump sheath and the boy's heavy twitching nuts, leaving a large visible line of his thick precum drooling over and marking his little brother's young shire colt treasures with his own fluid and scent. His little colt's head was nuzzling against his belly... he could feel the cute extra large fuzzy ears flicking softly up against him, still wet with his saliva, and now their silky fuzz getting damp and slickened by the big stallion's sweat as well which dripped down off his belly over the trembly boy's head and body to mark the colt further as his. Blake leaned his haunches forward slightly then, pressing his giant black fleshy crown more up against his little colt's big heavy nuts, forcing them to roll up slightly against the boy's sheath while the stallion's precum slopped out repeatedly over them, painting the fat orbs with several rich splurts and adding his scent to the boy's own unusual sweet cream. Yes... Fascinus' scent was almost all gone... He angled his haunches again, moving his wobbly spongy tip up over Basil's sheath, feeling it tickling over the soft fuzzy flesh of the boy's sheath lips and smacking wetly back and forth over them as he thrust, testing the stretchiness of the comparably small sheath.

Basil was more than amazed as the young boy was practically eye to eye with that enormous shire cock, still soft enough to wobble and bob around up and down in front of him though the veins were starting to show along its gleaming black length. Basil blushed and lifted one hand up to try and hold the giant crown, though he wasn't able to control it with his gentle grasp. Instead, the huge snake seemed to drag his hand around while he rubbed his fingers over the fat flesh up and down and in circles smearing around gobs and gobs and gobs of pre, flicking his ears down a bit cutely while he panted smelling the stallion's scent... feeling the shire's sweat dripping on his own body, his virility almost overwhelming. When he felt the shire's giant coltmaker squishing along his own young colt treasures, the boy curled his toes and whimpered "Ohhh..." He felt an exciting tingle through his loins as the huge black tip squished right at the opening of his own sheath, his own cock having receded to the point that there was a large amount of extra loose fuzzy sheath flesh to glide and roll over the edges of the shire's eager crown. Basil blushed sheepishly as he could tell what the big stallion was trying to do... holding the broad tip gently against his jiggly sheath with the slightest of restraint "Hehehe... my pouch isn't as big as yours Mr. Horsey... it won't... oohh... won't fit... oHhhh" the boy made a few soft moans as he felt the lip of his sheath stretch... then stretch some more as the big shire kept bumping his pre-slathered cockhead back and forth against it. He spread his legs a little, flushing more in his twitching colt ears and looking down between his legs as his cute fuzzy white sheath tube stretched more and more with that insistent bumping... soon bloating impossibly big around the very tip of the stallion's huge black flesh. "Ohhh gosh... yer... yer too big Mr... oohh" the boy flicked his ears down again, his cute tongue hanging out as he saw his sheath stretching bigger... then with a VERY loud schlop sound, that giant black crown wormed its way into Basil's sheath, precum drooling out around its fat black flesh on all sides.

Basil whimpered as he felt the immense slickness of the shire's cockhead bobbing back and forth slowly inside his hugely plumped sheath, rich stallion pre-cum constantly slopping in and out, excessively lubing up the snug, erotic dock between them. The huge crown repeatedly kissed against the tip of the boy's younger colthood inside of his sheath, urging his smaller horse member to swell and gradually squish against the enormous cumslit of the big shire's fat cock. "Ohhh... gosh... can't again..." the boy blushed and felt his pre-cum drenched shaft flexing to one side of his sheath or the other, as if it were resisting the this intrusion, but eventually the pressure from the stallion's giant jiggly crown was too much and the boy's increasingly sensitive colthood submitted, throbbing hotly as its goop-covered flesh was swallowed by the huge shire's slippy cum-tube. "Oohh.. ohh no... ohhh... yer so b...big..." he closed his eyes, his pink flushed ears flattening down while the boy felt more and more of his sheath bloating ridiculously as the huge stallion docked him deeper, gulping more of the boy's throbbing coltflesh into that godly draught cock. The black stallion's pre was already flowing thickly, excess fluid pooling inside Basil's fattened sheath, making it look even more swollen and pudgy along the belly... then there was the goop force-feeding into the boy's own cumslit... it felt much more powerful than anything he felt before... a lot thicker too. "Ohh... Mr... Horsey.... Its... so much..." the boy panted, feeling his own equine boyhood jerking as it was pumped up more and more and more with the goop while being constantly squeezed, tugged and massaged by the powerful shire-flesh slopping back and forth all around it. The boy's tied off nuts were pulling up against the bow again, pulsing heavily and eager for attention "Ohhh... g... gosh..." Basil started to slump back, panting as he held his hands behind his buttcheeks to keep himself propped up while the big stallion started thrusting more steadily. 'SLOP SCHLURP SLOP' were the constant lewd sounds coming from between stallion and boy as the shire mated Basil's bloated sheath, rapidly swelling the boy's plumbing while countless thick gooey streamers of pre connected between the fat black stallion cock and the boy's pregnant sheath. Basil clenched his eyes and panted, then moaned as he felt another round of inflation inside his hyper-sensitized prostate. Even the boy's belly was starting to swell this time as he was injected with load after load of heavy pre-goo.

Blake came extremely close to climax several times, but every time he felt his gigantic melons pulling up, he slowed and stopped the unbelievably sloppy docking. "Not yet... ohhh... not yet..." he huffed and nickered to himself, letting himself be satisfied for now with plumping his little brother up with untold quantities of his potent pre-cum. Whenever the blushing boy would seem like he was adapting to the level of expansion going on inside him, Blake would start going at him again, jiggling the boy's pregnant sheath around and pumping him with more and more of his rich goo. It was even better than Blake imagined in his most perverted dreams. The feeling of Basil's fattened sheath pulled snugly over his beautiful stallion cock and bobbing back over the goo-slickened flesh was by itself the most erotic thing he'd ever wished for... but feeling his little brother's young horse cock jiggling back and forth within his own cum-tube took things far beyond that. He scrabbed his hooves on the floor and hay as he humped several times hard enough to bounce the boy in the hay, feeding his brother's hungry colthood more... more... and delighting as he sensed his brother's tummy and prostate inflating. If he went any further, he was going to erupt... "No... my... my little colt's not ready..." he whickered as he slowed, then stopped his thrusts. Basil's eyes were closed tight, the boy blushing fiercely. He was really swollen this time... After panting a couple seconds, Blake slowly pulled his powerful haunches back, drooling out of his big muzzle as he felt the growing flare of his little brother's cock tugging along the insides of his urethra as he pulled back, then back some more. The boy's sheath jiggled down off the shire's massive flare, the pregnant fuzzy white tube spilling out a massive pool of precum between the boy's thighs as it wobbled down to the base of his still engulfed colthood, the sheath-flesh looking permanently stretched and loosened. Blake pulled back a little harder then, grunting and barely keeping himself from hitting his climax as the boy's thick flare tugged and tugged, and then finally slopped out and jiggled free of his gaping cumslit.

The cute boy blushed again harder as his nine and a half inch colthood bobbled free, gasping and whimpering as almost immediately when the pressure was let up, the gooey fountain began. He opened his eyes back up slowly, looking down at himself... his cute fuzzy white belly was extremely swollen, and he could just barely see the mottled tip of his fat equinehood rising over his pregnant tummy, slapping and gushing big gouts of the backed up precum. The sensation was more intense for the boy than Daisy's cream, this fluid so much thicker... He flopped his ears up and then back down gasping as his loins flexed and his belly swell relaxed slightly as a huge geyser of precum pumped up out of his cock, painting his whole upper torso with a heavy splash. "Ahhh... ohh..." the boy moaned in ecstasy, pressing his thighs together around his heavy nuts, begging to cum yet restrained by the ever snug looking bow. He whimpered cutely as another huge gout of pre-goo fired out and drenched his face and ears with oozy stallion musk. The big shire was backing down off the hay now, looking over the trembling, gushing boy as if inspecting his handiwork. He snuffled over the boy's swollen belly, then tongued over his plumped out colt cock, watching it fire another big splatter of precum while the boy gazed down at it deliriously. Now the stallion mouthed on one of Basil's hands, guiding it to his tip and pressing it there, urging him to hold it tight. Basil could barely think, his instinctive obedience causing him to grip firmly over his tip to slow the gooey eruptions. At first the pressure was too great to be completely cut off, but after several seconds the boy was completely stopped up by his little hand's firm grip, his tummy swell reduced by more than half, though the rest of his plumbing was still intensely plumped.

"Ohh... B... Blake wanted me to... like this," the boy said in between panting as he remembered his big brother's experiment that led to his balls growing so big. The huge shire was back on the floor now, his giant floppy black cock swaying still under his belly, still just over two feet and drooling into a large growing puddle of pre. When the boy mentioned Blake, the big stallion bobbed its head at him, as if recognizing that word. Basil curled his toes, blushing and stuttering a little as the pressure inside his plumbing was still quite intense and almost painful... he squeezed a little tighter on his fat cocktip. "B....Blake..." he repeated while looking up at the huge shire, and it bobbed its head again and even reared up a little for him. Basil's simple boyish mind put two and two together finally and he whimpered, "Blake... ohh... its you..." Blake bobbed his big head again, and then gave a slow lick up along his little brother's right cheek and ear, getting a little gasp out of the backed up boy. "How'd you... ohhh..." Basil trembled quietly while Blake tongued over his pre-splattered neck and shoulders, the big shire's attention seeming at that moment to turn towards Basil's overalls which were atop the haybale.

At first, Blake was simply ecstatic that his brother recognized him, but his attention was distracted by what he was smelling in those overalls. "Yess..." his mind started to become muddled again. This was exactly what his little colt needed. He rooted his muzzle into the overalls pocket searching for the vanilla scent... searching for the pills. "Basil needs just a little more... a little more improvement," the boy thought to himself as he pulled the baggie out with his muzzle, ripping it open with his teeth and spilling out the four remaining jelly pills.

Basil was still sitting there, trembling and panting... trying to maintain his grip on his bloated equine shaft. The pressure somehow seemed to be getting less and less painful now though. The boy's plumbing was adapting again, growing larger... the inflated sensation was actually starting to feel kinda good now... actually more than kinda good, it was starting to feel very good... "Ohhh gosh..." the boy said softly, gazing down at himself while relaxing his grip on his cocktip, watching his bloated shaft jerk up against his gentle hand and still quite swollen tummy while just oozing nonstop now rather than erupting. He panted a little again, lightly masturbating for a moment and flicking his cute fuzzy ears down in pleasure as he felt the stallion's pre sloshing up and down within his cock as he pumped it gently. Basil panted harder, briefly glancing over to Blake as the big stallion spilled out the remaining pills. "Those are for..." the boy flushed a little, remembering his brother was an animal now. "It must... must be okay," he said quietly while nodding, having a hard time keeping his eyes off his own young maleness as he kept gently stroking his fingers over its erect flesh.

His stallion brother slurped up two of the big jiggly pills, then returned quickly back to him, pressing his huge nostrils right up against the belly of Basil's fattened cock. "Yer almost... almost ready little colt," Blake thought to himself while nuzzling his nose up over his little brother's bulgy member. Basil panted a little, his shaft flexing eagerly against the big horsey nose, then Blake lipped over the tip of the boy's thrumming flesh, then started pressing his mouth over Basil's fat crown. It was flavored heavily with the taste of Blake's own pre, but also a bit of that delicious creamy flavor as well. Blake took a few seconds bobbing his large stallion muzzle over the boy's trembling nine and a half inches, getting a little moan from him. This encouraged Blake further. He didn't know fully what he was about to do to his little brother, but at the moment he didn't seem to care about anything other than 'improving' him. He used his big tongue to roll and wriggle and squish the first of those big jelly pills at the head of Basil's boyhood, trying to force feed it into his cocktip. "W... what's... ohhh... N...no Blake... I'm not supposed to..." Blake heard the cute boy moaning and trembling innocently while he continued pressing with his tongue, feeling his little brother's colthood stretching slowly around the big jiggly drug, then eventually swallowing it with a little slurp. "I'm.... I'm not supposed to... only the animals... ohh" the boy continued more softly while Blake was undeterred, gradually going for the second jelly pill, forcefully squishing it as well into his little brother's inflated urethra. He kept pressing with that big tongue, shoving the second jelly pill harder as it met more resistance, flicking his ears as he heard his little brother whimpering and shying away a little, but Blake held him still with his forelegs and wouldn't let up. Already, the jellies were dissolving into the reservoir of stallion pre-goop that he'd pumped into the boy's shaft. Basil was panting nervously and watching with just one eye open, briefly releasing the grip of his hand as he felt his stallion brother's huge tongue injecting the jelly treats down inside his pulsing cock. He gasped and squeezed again obediently to keep anything from gushing out as he looked at his brother's intense, passionate gaze. At that moment Basil began squirming his hips and thighs in the hay... something was starting to happen between the boy's thighs... something wonderful, and Blake heard his little brother's voice... little ohhhs and ahhs sounding more sweet and pleasured and song-like than he'd ever heard from the boy before.

First, it was those gentle, adorable moans... Blake's ears lifted up excitedly as he heard them, his own erection growing again slightly as he listened while continuing to keep his mouth over his little brother's tip and massaging his big equine tongue over every inch of the young flesh. "Ohhh... yes... yes sweet colt, tell me how it feels," Blake thought to himself while Basil's eyes both closed, the boy curling and uncurling his toes as this powerful throbbing sensation pumped through his quivering loins. It was turning prickly then, racing up and down over the boy's throbby cock and his heavy nuts. "Blake... ohhh... hehehe... t... tickles..." he leaned back, laying his back onto the hay while spreading his thighs as the boy let out more of those pleasureful giggles and gasps, still holding his member tightly, but now he was bobbing his firm grip up and down over the slickened flesh again, unconsciously distributing the blue slime of pre-goo and dissolved jellies within his cock and plumbing. The tickling got even worse, and Blake watched Basil's adorable silky ears wiggling again as he giggled again, then moaned sweetly and his hips and butt writhed a bit in the hay as the kid felt that prickly pressure building up throughout his boyhood. He clamped his fingers even tighter over his young girth, trying to stop up that pressure, but it just kept growing and growing, more and more intense until the blushing boy felt like he was about to burst. He gasped and moaned softly, then Blake heard an adorable squeal of ecstasy coming from his little brother as his boyhood throbbed and jerked powerfully up against Blake's muzzle, growing inch by inch by inch with each throb and spasm of the jiggling colt flesh. Its rapidly expanding girth stretched the stallion boy's muzzle just a little wider as it inflated with that sudden growth spurt. Blake was thrilled, his own cock slapping hard up against his tummy as he relished changing his little brother... "Yes... that's right my little colt, don't fight it..." he thought to himself while swirling his tongue over the bigger boyhood in his muzzle, even bobbing his mouth on its fatter flesh again. He could feel the veins beginning to really plump along its length. He pulled back, slopping his muzzle wetly off the nearly fourteen inch equine boyhood. The mottled color was disappearing from his brother's cock now... it was gradually changing to pure black like his own, and the tip was growing bigger as the squirming boy's hand pumped several times under it quickly, another little orgasmic moan drifting up from Basil as the boy's medial ring inflated and bulged out quite prominently more than halfway down the large shiny black cock.

Blake nuzzled down along his colt's growing length affectionately to his loose, goo-coated sheath and his churning balls, "Ohh... yes... more..." he nickered softly urging the pills to keep working their magic on the sweet boy, ears flicking again as he heard his brother moaning blissfully while the kid's swollen grapefruit sized nuts plumped up bigger and heavier again with the growth of his cock. Blake watched the fatty spheres grow and sag, then pull up sharply against their bow, then grow and sag bigger again, the bow's fabric stretching and beginning to look increasingly strained over the boy's eagerly plumping balls. Blake nuzzled under the spheres encouragingly as they grew, then started bathing their expanding flesh with his huge tongue, lifting and rolling them up with each slurp to smack them wetly with the boy's pumped up sheath flesh. He kept pushing with his muzzle under Basil's balls, huffing again powerfully against their erotic sweet cream flavored musk, then rolled the little equine boy up so his legs were up in the air, folding him up on his back and allowing his fat white horse butt to lift into view, his cute white fuzzed taint looking erotically plumped out... perhaps even permanently so. Blake gazed a moment at the boy's already saliva slathered bulgy black pucker, gaping and relaxing over and over while the Basil's cock thrummed and that amazing pressure began building in his boyish loins again. "Ohhh gosh.... OHhhhh OHHhh" Blake heard while wriggling his tongue over the gleaming pucker, then noticed the bulge at the boy's tailbone growing larger and larger with every pulse of his body. Blake huffed his big velvety nose against the growing bulge, then encouraged it with several slow strokes of his big tongue as well, sending sparks of sensation through the boy's developing shire butt.

Basil was dizzy with sensation, all of his pleasure senses... all of his nerves seeming to be firing at once over and over and over. The boy's hand gripped a bit more firmly on his own large horse cock, feeling it throbbing and jerking again... pressure building just like it did before. It felt deliriously big on the young boy's body already, and as his stallion brother had him folded up on his back now, the pleasure drunk boy got to watch it up close as it fattened in his hand, jumping and bobbing lewdly through his digits while barely oozing a trickle of its plumped contents through his tight grip. Now he felt that other, equally sharp sensation building along his butt... focusing up just above his pucker as he felt a large amount of swelling there. "Ahhhh... what's.... ahhh..." he clenched his teeth a bit as the pain got worse... then the pleasure throbbing up through the boy's fourteen incher got worse... then the pain again... The intensity was unimaginable, the pain seriously getting to the young boy... tears starting to flow down his cheeks as he kept rolling his hips and smacking his fat black shire dong through the tight grip of his slippery coated hand. The pressure on both his quivering butt and his loins and beautiful colthood started to peak, taking away his breath, taking away his voice, leaving the flushed boy with just his blurry, starry filled vision. Then he felt the intense release of that pressure hitting him with unrelenting force. The boy squealed again and his cute young body was throbbing and wriggling from ears to toes as his tail burst free forcefully, splatting the hay underneath him with a little bit of blood and then rapidly growing out larger and longer, silky golden hairs flowing down over the hay between the boy's uplifted legs and even over the side of the haybale. At the very same time, the boy's young shire cock jerked up in his grip, surging up to about seventeen inches with a couple orgasmic pumps of pleasure up and down its now deliciously fat black length. The growth spasm came so sudden, the teary eyed boy got a firm slap on his cheek and mouth by his big lovely horse dick. He released his grip on it in surprise, whimpering and watching its lovely shiny black flesh with amazement. Even though he wasn't squeezing it anymore, it was now just barely trickling out his backed up translucent pre, the blue stuff seeming to have fully absorbed at this point. Basil blushed more and gasped "My... my ohhh..." he curled his digits around his growing flare, squeezing under it and experimentally flexing his loins. He felt the flex travelling the long distance up his fat black horsecock, smacking himself in the cheek again while splurting several thick oozy strands of pre over his own face and then moaning and giggling sweetly.

Blake had pulled back to tongue over his little brother's bulgy taint just before the tail burst forth, distracted quite a bit for that moment by the boy's balls swelling and jerking against the intensely straining bow again. They were huge... not quite as big as his own but getting there... like heavy milky cantelopes now... His heart pounded fast then when he watched the tail blossoming out, hearing his little brother's pleasured squeals again. His tail was gorgeous... more than gorgeous... he wanted nothing more than to draw his hooves through its long silky hairs... He panted... his hands not hooves.... Blake shook his head again, that's not what he needed right now. His stallionhood was nearly fully erect again, just over two and a half feet and bobbing about demandingly... His immensely fat nuts were aching for release. He lifted his muzzle back up over the boy's twitching crotch, slathering his little brother's ungainly nuts with his big tongue and then drooling a bit as he watched the boy slapping his own face with his big seventeen incher. "Ohhh god... Basil..." he lolled out his tongue as he climbed back up over the hay impatiently, hooves way out over the boy's head and his hips quickly thrusting forward to feel his enormous black crown slapping with a very wet, gooey splatter of precum right up against his little brother's uplifted shire butt. He felt the tickly caress of the boy's giant saggy white nuts over the top of his spongy black tip, and the tickle of his tail underneath while squishing it forward, panting harder as he felt the boy's plump hot white cheeks spreading and his big bulgy black pucker being kissed by his huge throbby flesh. Basil was drooling a little himself, the boy's lips starting to mouth curiously over his own very pudgy tip, kissing and sucking very tenderly at the flesh while he blushed and explored himself a little, one hand trembling while it tried to hold onto his horsey boyhood while his other stayed hooked under one of his legs, helping pull him up into an even more folded position to lift his butt better for his big stallion brother.

"That's good... <pant> my little colt... you're almost there..." Blake nickered softly while he rolled his huge powerful haunches, "Now... stretch nice and big for your stallion... Ohhh... yess... YESSss" he started to drool again while he felt Basil's large, but comparatively small horse pucker stretching bigger.... bigger... Oh god it was stretching so much, but Blake was so enormous. He kept slopping his crown against the underside of Basil's tail, hot black flesh kissing with hot black flesh. His precum was splurting all over the place, painting his brother's quivering horsebutt, slopping between the cheeks and over his thrumming taint... and with his cumnozzle jammed against the boy's pucker, plenty of the goop was pumping into him, helping stretch and lube him up more and more as it mixed with saliva and the sweat running off the shire's huge pole, making the boy's creamy flanks about as sloppy as possible. Blake's stallionhood was spasming with eagerness. Ever since his change, he needed this... he needed to mate. He was so... so close now. This little colt would be his forever. He tossed his head a few times, neighing as he thrust again and again, passionately but tender with the shire colt's jiggly butt. It stretched some more, the sound of his thrusting so sloppy, so slippery... the scents of it all were intoxicating. He looked down briefly at the boy under him, Basil's eyes clenched and the kid was blushing very pink over his cute cheeks and ears, panting over his own wide tip while he was spread and stretched bigger and bigger. "Ohhh... OOhhh Blake... oHhhh... yer.... Yer too big... Ohhh... gosh... ahh," between words, his own flaretip was slopping in and out of the boy's lips, being fed into his panting mouth by the stallion's thrusts which made the colt's hips roll back and forth as well. "So... close" Blake panted... He scrabbled at the floor a bit with his rear hooves, pushing harder.... harder... Basil moaned louder over his own cocktip, the boy's ears flattening down as he was spread impossibly wide. The schlurping sounds got hotter, louder as Blake used that slow, extra firm pressure on the boy to get that pretty horsepucker of his to gape gradually all the way around his gigantic flaretip. "OHHh... YESSSS YESSSsss" Blake whickered finally and hunched his flanks forward, feeling that triumphant, insanely erotic PLOP as his little brother's big horsebutt took his massive tip.

Blake could feel every pulse going through Basil's trembling body, every thrum and throb of the boy's big prostate and balls working its way over his stallion flesh, that steadily increasing pressure over the boy's loins, working its way up and down his young equinehood again. All of that, Blake could feel... maybe even control. He stretched the boy deeper by shoving his immense flesh an inch or two into the boy, angling his thrust upwards slightly and applying a ridiculous amount of pressure on the boy's overgrown prostate. Basil reacted with a muffled squeal over his cock's tip as it flared up suddenly in his mouth, the pressure growing massively and the boy's heavy nuts churned harder, again swelling... the bow looked like it was about to snap off. "God.... Ohhh..." Blake nickered, his rippling stallion body trembling this time, feeling the intense tightness of his little colt's plump yet strong cheeky horse butt clenching and milking over his cockflesh. "Yessss... ohhh..." He thrust again a bit deeper, only about five inches deep and already the boy's relaxed tummyswell was starting to show again as he was pumped again and again and again with more of the stallion's thick pre-fluid. Blake's deeper thrust got another delicious reaction from Basil, the boy's cutely intense moan drifting up as his own flaretip slopped out of his mouth and splurted a couple thick splurts over the boy's cheeks and ears, then it jerked powerfully as Basil's cock grew another inch bigger and slapped again higher on his face. "Oohhh... Good... good colt... you've got a little more now... Yes... a little bigger for your stallion brother..." he nickered softly while rocking his haunches in a more steady rhythm now, the sound of very very gooey, sloppy mating between the two becoming practically all that could be heard in the stable. Basil blushed and the boy's belly swelled some more as Blake went eight inches deep, grinding his prostate again with the huge slippy girth. The boy's colthood spasmed and gurgled up another slurp of precum as it jerked another inch, nineteen now... Blake then swiftly thrust to eleven inches deep, stretching the equine boy's gut with the immense dick and more pumps of pre, and Basil squealed again as his gleaming black horse cock flexed wildly and topped twenty inches.

"Just... just a little.... Little more..." Blake felt his own massive nuts pulling up as his climax was nearing... He had to get his medial ring in... He started pumping his glorious black shire cock back and forth and back and forth in eye-poppingly lewd thrusts, the already loud slops and schlurps becoming audible from outside the stable... Again and again, his immense black girth was swallowed up by his little brother's ridiculously wide, gaping black horseboy pucker. The tender white flanks quivered and flexed and squeezed about the thrusting length with all their might, practically begging the stallion to feed him more. He was close to halfway deep now, and his brother's insides seemed adapted and stretched ever more to take him, the boy's belly bulging hugely not just with pre, but with the stallion's flexible cockflesh and gigantic flare curved and squished up into it. "Ohhh Blakey... ohhh.... Ohhhh d...don't stop..." Basil said finally in that cute trembly voice, and Blake's heart swelled again. He humped a bit more quickly, short fast slaps of his giant flesh spanking wetly into the boy's jiggly shire butt, getting Basil's huge milk-fuzzed cantelopes bouncing and bobbing up and down over his thrusting girth. His medial ring was kissing the boy's gaping ring now, kissing and slopping wetly with it as precum surged around the bulgy ring of flesh. Basil's tummy was so swollen with shire cock, the boy almost looked pregnant with twin foals. Blake gazed down at him again with a mixture of pride and extreme lust... this was all his... Basil was all his now... "Just... one... more..." he nickered, clenching his eyes as he humped and bucked his little brother on that giant fleshy ring, bouncing the boy's body in the hay.

Basil's ears flattened down again, the boy's body shaking and wriggling again in the hay as he was bounced on that massive shirecock, every pulse of his stallion brother's flesh going through his buttocks and guts and swelled out tummy making every one of the boy's sexual sensors overload again and again. The medial ring was stretching him again... he was drooling again like crazy out of his mouth while trying to slurp his tongue over his wobbly flesh just under his own flare. The pressure in his cock was growing again to its peak... The pressure in his balls felt even worse. He could feel them wobbling and plumping against the bow while they were constantly slapped around by his big stallion's thrusting. "Ohhh.... OHHHHH grrr... big....big brother... OHHhh y.... YESSSS" he felt that huge jiggly ring suddenly slopping into him and a grand finale went off inside the trembling boy. His heart swelled and pumped wildly as his cock surged against his hand, flare bloating and his flexing black colthood maxing out to twenty one gleaming inches. The boy's heavy creamy spheres plumped and strained powerfully against the bow, then the fabric suddenly snapped off and he felt such a surge of thick, creamy fluid that the boy nearly passed out as his heavy melons slapped up sharply against him, pumping furiously into his already bloated dick. His cockbelly surged huge with the titanic pumps of cum, then the cute shire boy's squeals of heavenly bliss sang through the stables as his cockflare jerked up and down wildly up between his ears and then erupted with an insanely powerful blast of thick, heavy cream that splintered and cracked the side of the stall behind him while splashing chaotically in every direction. His giant nuts slapped up sharply again and another giant pump followed immediately behind the first, again bloating the dizzy boy's cockbelly before the stall's wall was blasted with another powerful stream of heavy cream, splintering further... then cracking the wood open and splashing cum out the other side. The boy squealed and pumped again... and again... and again, cream flowing down both sides of the wall and pooling heavily on the floor, splashing over the adjacent walls and drenching most of the haybale, including the boy's own bucking form. He came so many times, he lost count, hosing the wall... the hay... even the support beams above with his sweet cream, overwhelmed by the fact that each successive blast seemed only to top the pleasure of the previous one.

Blake's eyes lit up and his powerful shire form tensed and flexed as he felt his little brother's already gaping ring stretching bigger... bigger... then suddenly swallowing his own huge fleshy black medial. He humped that jiggly bulge back and forth and back and forth inside the boy's clenching horsebutt, watching... and hearing... and feeling as his little brother experienced his first true orgasm. It was beyond words... He felt a myriad of intense pleasures rippling through out his massive girth, the boy's whole body like a temple, worshipping every inch of his flesh... His belly churned over the stallion' heavy black flesh and that enormous flare, his guts and flanks squeezing, tugging and milking over him. The boy's big prostate was pounding over his spasming tool as he sawed up against it with each firm little hump. He could feel the thrumming of the boy's massive nuts and big shire cock growing one last time for him, buzzing over his own length, building him up rapidly higher and higher to his own peak. "Oohhh... Godd OOHHHH B...BASIL" he neighed as he scrabbled around on the floor again with his hind hooves, his front hooves digging into the hay around his gushing little brother while he slapped his massive shire cock once more forcefully up into the little guy, giving him a firm bounce just before his massive stallion balls pulled up and pumped and pumped and pumped, Blake's body shaking a little as he was briefly overwhelmed by the intensity of his climax. The nearly half of his black shire cock sticking out of his little brother bloated with cum, expanding visibly with pump after pump... then the cum-bulge traveled along his flesh and into his brother's cheeky white horse butt, exerting huge amounts of liquid pressure on the little colt's prostate and inners, then the boy's cute orgasmic cries were enhanced as his belly pumped up dramatically with Blake's shire cum. Then again... and again, his white fuzzy belly pumping up bigger and bigger and bigger. There was just so much... Blake's balls were unloading it all into the cute little colt, his tummy continuing to expand while the forceful pumping inflated other areas of the boy's inner plumbing as well. His balls were swelling again even as he continued to relentlessly hose down the stall with his rich cream... the boy's prostate was so inflated, it would probably never shrink back to normal. Blake was roiled in ecstasy... Every part of his little colt belonged to him now... He huffed proudly and drooled again as his pleasure kept spiking over and over as he pumped up his cute colt boy bigger and bigger... slowly losing consciousness again...

~

Billy wasn't going to just wait around at the farmhouse for his dad to finish his business. Instead, he would find that younger boy again and question him more about the pills. This time, perhaps he'd have to get a little more... persuasive. He had already looked around at all the pastures and fields at this farm, but he didn't see him. "Stupid farm... ugh... when I'm rich I'll buy this place up and level it... maybe turn it into a waterpark or something," he said, a devious look on the boy's face as he returned to the stable.

Just as he was walking in the front door of the stable, Billy heard something... something wet... sloppy sounding. There was a horse nickering loudly... then more sloppy sounds. He heard a young boy's voice calling out "Ohhh OOhhh." It sounded a lot like the boy he'd seen earlier in the day. He quietly hurried towards where he was hearing those sounds. He saw Fascinus leaning over the side of his stall door, the white colored shire's full attention was on what was going on in the stall across the way from him, and his arousal was bobbing around wildly, shooting out gobs of pre as he was very nearly climaxing just listening and catching little glimpses of the scene in there. The scents were almost too much for Billy. He hated this stallion sex scent... but for some reason, the boy just couldn't control the tent that was forming in his shorts as he smelled and listened to the intensely erotic sloppy sex sound. He blushed and peeked over the stall door.

Inside, Billy saw that boy he'd seen earlier on his back, moaning and looking practically impaled on the huge black shire's cock, and the boy seemed to have developed much more. He had a truly elegant, large shire horsebutt to him now and a long flowing tail which reached all the way down to his feet. His white silky-fuzzed ears were kind of like horse ears, only larger and slightly more floppy at the tips. There was white fuzz coating his belly and thighs and hips as well as his butt, and he even seemed to have a little bit of white fuzz growing along his hands and at the top of his chest. Then... there were those other... horseparts. Billy had to look away for a moment. There was just no way. This kid was sporting some massive piece of artillery on him, looking almost as big as what was on Fascinus... and his balls... how could he even walk with those! Billy's tent didn't go down, as he shook his head... it must be the pills! His dad would definitely need to run tests on this kid and horse...

Just then as he wasn't looking, Billy heard the boy's blissful squealing... then the similarly climactic neighing of the stallion. This... it wasn't possible... He saw the cream gushing around, puncturing the side of the stall... the boy plumping up somehow... These pills... what exactly were they capable of? After the torrent of cream gushed between the two, Billy kept his eyes on them both, watching as the stallion slumped forward and the boy seemed to pass out as well, exhausted and dripping with his own cream and the huge shire's goop and sweat. Then, another amazing thing started to happen.

Billy watched the massive black shire as he seemed to be... shrinking. The boy blinked his eyes a few times just to make sure he wasn't seeing things. No, it was definitely shrinking. Slowly, the massive horse reduced in size down to about the size of a pony, then he shrank further, his rich black coat seeming to recede and be replaced by soft skin. His equine shaped head gradually reshaped itself, becoming more and more human. His front legs shrank to less muscular arms, hooves splaying into hoof-ish hands which were not quite human, but more human than horse now. The rear legs similarly transformed into human legs, but with hoof-like feet. His gleaming black tail shrank a little but remained, and so did his black fuzzed ears. His chest shrank to a human youth's, as his overall size became reflective of a boy somewhere about the same age as Billy. His butt and belly retained some of their extra plump, just without the black fuzz. Finally, the last thing that seemed to shrink on the boy was the giant stallion endowment between his legs, the huge shaft wiggling out from the younger boy's uplifted butt and flexing about lewdly as it reverted slowly back down in size and shape and became human again, though with an exceptionally long, fleshy looking foreskin on it and a lot bigger than any human boy he'd ever seen. It looked like it was still about ten inches long, and sitting above some relatively large, saggy balls.

Since both boys seemed to be unconscious, Billy carefully opened the stall door to get a closer look inside. He tried to avoid the pool of creamy goo on the floor as he made his way to the haybale. Billy focused briefly on the younger boy. He didn't look to be reverting like the other boy, though his enormous cock seemed to be coming down in size as his arousal went down, and somehow... his balls seemed to be mimicking this. Billy blinked and narrowed his eyes at the sight, "Dad will want to run all kinds of tests on these two..." he said. Before he was getting ready to go, the boy looked down in the haybale and spotted a ripped baggie with two of his dad's pills laying next to it. He blinked again, then reached over and put the two pills back in the un-torn section of the bag and slipped it into his pocket. Billy took one last look at these boys, smirking at them a little "Heheh... you two are gonna be in real trouble now... just wait and see." He snickered to himself as he made his way out of the stall, closing the door behind him.