A Fate/Stay Night Transformation Story

(Woman to Pig)


Metal rang through the air as one woman’s blade collided with another’s staff. The staff-wielder was Caster, a magician who’d displayed nothing but contempt and ill will since the beginning of this Holy Grail War. The other was Saber, also known as Artoria Pendragon, King of Knights.

“You sallow witch!” Saber hissed, glaring down her windswept blade. “To think you would so perfidiously invite me to this temple, only to betray me at the first opportunity! You’ll find my blade and armor more than a match for your foul blandishments.”

Caster only laughed, breaking their contact with a hasty withdrawal. “Saber, you wound me. I simply wanted you here for a meal—call it a ceasefire, if you will.” The woman’s staff vanished as quickly as she’d summoned it, and she lowered her hood around the back of her neck.

Her eyes were a surprisingly delightful shade of blue, one that went nicely with her purple robes and lavender hair. They also shone with a refreshing sincerity, which proved enough to break through Saber’s natural distrust. Of course, the food which gently steamed behind the magician certainly didn’t hurt things.

“If that is truly the extent of your invitations,” Saber sheathed her sword with a clatter that didn’t quite manage to hide the growl of her stomach, “then I suppose I shall take you up on your beneficence.” Despite her disarmament, the woman didn’t dispel her armor. Instead, she strode in full battle-dress towards the table.

“I’d have it no other way.” Caster purred, following her guest in. She watched with a growing smile as Saber filled a plate with a set of leafy greens, potatoes, and of course baked lamb. They were all Greek specialties, whose preparation Caster had slaved over relentlessly.

Saber wasn’t keen on starting any other conversation for the moment, and it seemed Caster shared such sentiments. The magician sat beside her fellow Servant with a faint hum of delight, watching as the King of Knights dug healthily into the meal.

Truth be told, Saber had doubted Caster’s cooking skills, and was pleasantly surprised to find it was one of the better meals she’d had since being summoned to Fuyuki. The flavors weren’t as drawn out as some of her own Master’s dishes, but she could hardly fault Caster for not being a virtuoso on the battlefield and the kitchen alike.

“Enjoying yourself?” Caster languidly broke the silence, plucking a small fruit from one of the bowls and popping it in her mouth. She beamed as Saber finished the salad, moving onto the literal meat of the meal.

“Your preparation is… I hesitate to call it exquisite, but it is very nearly so. I rather enjoy the flavors of these dishes, and I shall endeavor to have my Master replicate some in our own kitchen.” Saber felt a bit awkward contemplating a woman who’d prior tried to kill and/or enslave her. Still, she had earned a reputation for munificence, and was rather generous with her compliments.

She was also generous with her helping size, though that was no doubt aided by the magics of her host. Little did Saber know, she was right to suspect Caster of ill will. The mage had placed a special spell upon the meal, one which came fully into effect when Saber took her first bite of lamb.

Already its effects were beginning to become apparent. The woman’s ears looked distinctly more pointed, and she seemed to be having a little trouble catching her breath. Every third breath Saber took came out as a half-snort, and her nostrils twitched each time.

Caster almost couldn’t help but giggle as Saber’s nose slowly upturned on her face, taking the crinkled and heart-shaped appearance of a pig’s. She stifled it with another persimmon, chewing on the fruit contemplatively. Her aunt had told her that the best way to get someone to indulge themselves was to sample of the food herself, and it seemed the advice was well-heeded.

Saber cleaned her plate in a matter of seconds, grunting softly and biting her lower lip. The motion exposed that her lower teeth had grown slightly, bearing a faint resemblance to porcine tusks. Her larger nostrils twitched, and she seemed surprised by the motion in her peripheral vision.

“Seconds?” Caster offered, a tad hurriedly. It seemed she’d acted just in time, as Saber’s attention was quickly diverted from the twitching of her nose to the opportunity to devour more of the meal. This time, she loaded her plate fully with the assorted meats, skimping on the vegetables.

“If you wouldn’t mind.” Saber replied, already speaking around a mouthful of food. She couldn’t remember the last time she’d been this hungry, even though her belly was beginning to feel strangely full. She wiggled a swelling ass against her seat, glad that Caster’s dining room had a Western setup.

Caster was glad for this too, because the high back of Saber’s chair exposed the woman’s backside perfectly. It gave her a full view of watching the knight’s slim hips begin to widen, lifting her skirt in the process. This in turn exposed the beginning of a corkscrewed tail: a nub that slowly unwound itself from the base of Saber’s spine.

Saber felt that, arching her back and letting out a muffled groan. She chewed a few times, then swallowed, looking back to her companion with a slight sense of unease. “Forgive me for saying this, but… You promise that you have no ill intentions with this meal?”

Coming from the porcine-faced woman, it looked like more of a joke than any real question, and when Saber snorted for good measure Caster outright guffawed. Caster’s eyes stung with tears of mirth, and she patted Saber’s broader back with amusement. “What do you think?” She managed between peals of laughter.

Saber’s brow furrowed, and she looked to Caster with a growing suspicion. “What-rrnk-are you talking about?” Her nose twitched as she spoke, and she wiped at it with a greasy finger. In doing so, she felt just how much more nose she had, and the woman gawped in horror.

“And the piggy finally realizes what’s happening!” Caster beamed, clapping her gloved hands. “Oh, this certainly is precious. I should have bought a camera for this occasion, just so I could share your fall from grace with the world. Alas, I’m afraid that my perfect memory will have to suffice.”

“Hrrnk?” Saber huffed, unable to keep herself from snorting like a pig. Now that she was growing aware of her changes, she realized just how far her body was from its original state. Gone was the waspish Artoria Pendragon, King of Knights. In her stead was something closer to a porcine housewife, with a full stomach and plush hips—and that was without taking her ample buttocks and thighs into regard.

Caster simply clicked her fingers by means of response, and Saber’s head jerked back towards the food. Her palms slapped against the table, and the growing woman climbed atop its wood frame. She tried to ignore its creak of protest at the motion, though she instead should have ignored the bowl of sausage in front of her face.

Before she could realize the extent of her lapse, she’d dove into the meat, hungrily chomping, swelling her body further. The human hourglass of her features was soon lost to the barrel chest of a swine, and as she wiggled her fat butt she realized that she could feel her stomach swaying as well.

“PlEEEse!” Saber squealed as she spoke, spraying flecks of food to the left and to the right. “No big-GGRNT!” Tears dewed at her eyes, and her ears flopped over at either side of her head. She could feel their weight, as a near-constant reminder of what she was becoming.

“Oh, you poor, fat, sloppy dear.” Caster cooed, wiping the grease from Saber’s swelling chins with a mocking coquettishness. “Don’t you even want to know how it’s possible? I mean, I’m sure that by now you’ve realized I am Medea of Colchis. But I don’t think the Grail’s knowledge imparted unto you that I happen to be Circe’s treasured niece.”

The woman marveled at her subject as she spoke, watching Saber’s slender limbs begin to shorten. Her upper arms and thighs bulged, while her forearms and calves thinned. The result was that she soon stopped kneeling over the food, and instead started standing over it.

Saber nearly choked on a mouthful of food as her body jerked and convulsed; her shoulders popping, spine straightening, and her hips cracking to damn her to a life on all fours. In a way, she wished that she would choke, if only for the fact that it would free her from these changes. Instead, she mashed her face so far into a pile of potatoes that her nose touched the bottom of the bowl.

Caster laughed louder when Saber brought her head back up, snorting to dislodge a chunk of potato from her oversized porcine nostrils. “Imagine your subjects! Just think of how they’d react to seeing their esteemed lord reduced to such a state! Oh, I can see now why my aunt took such pleasure in little things such as this.”

“HRRNK! Little? Noting ab-RRNK! About this is little!” Saber sobbed, chunks of food and drool slipping past her lips as she spoke. Her head instinctively dipped towards the half-chewed scraps, and she played her tongue along them to suck them back into her mouth.

Her tongue swelled as she did, bulging and rippling with growth. Flavor drained from the woman’s world as her taste buds simplified, for how could such a large and piggy tongue comprehend the flavors a human could? It was another humiliation added to enough shame to fill a library of woes, and Saber blushed as the long appendage flopped past her lips.

“Well, I think your armor happens to be too little. After all, it looks like you’re ready to burst!” Caster cooed, cupping Saber’s ears in her hands and giving them a playful tousle.

“RRRNK-RRRUIII!” Saber squealed, now beginning to feel a growing discomfort. Caster was right: her clothes were too tight. The armored dress that had offered her such protection in the past was now crushing her like a vise, and she fell to her side with a hefty thud that upended some of the dishes.

One of them, a bowl of little meat dumplings, was spared. Caster chuckled and scooped it into her hands, gingerly upending it over Saber’s pained face. “Having some trouble, sweet sow? Allow me to help you with that.”

Saber’s nose and mouth extended from the rest of her features, creaking and popping as they grew as if trying to catch the dumplings. If they were growing for such a reason, they were successful. The meaty buns fell into Saber’s mouth, and her whole body ballooned out with an oomph of displaced air, and the metallic crump of metal yielding.

In that moment, two things happened. First, Saber burst free of her armor in a manner less like disrobing and more like a bomb’s detonation. Second, the overstressed table finally gave out, legs snapping beneath the weight of the hefty pig atop it.

Saber thumped onto the ground with a thud so heavy that she could swear she heard some of the nearby cabinets rattle. It did little for her distressed self-esteem, which plummeted further as she looked to her snout. No matter which way she turned or angled her head, she could see her swollen nose prominently, and she shook her head with a humiliated squeal.

“PlEEEse! CastRRNK! IUUUIII’ll do anEEEEthing!” The fact that her once-eloquent speech was eroding faster and faster hadn’t escaped her, but she was too distressed by her weight to care. Worse, she could feel her hair falling from her head, the locks easily dislodging themselves from her pores.

Saber couldn’t see why from her position, but Caster certainly could. The woman stood above her sow of an adversary, watching as a pink hide swept across smooth, creamy human skin. Saber’s delicate body was now nearly entirely porcine, and Caster couldn’t resist kneeling down and rubbing her hands all along the blonde’s expansive flanks.

For some reason, this was distinctly pleasurable to the transforming woman. She couldn’t bear to admit that it was because her piggy form enjoyed the rubbing, but also couldn’t deny that her hands and feet were twitching more with pleasure than with transformation. That soon changes, as her fingers and toes curled, balling up and hardening over.

Saber could feel the hard enamel slowly encompassing her hands and feet, squeezing them tightly and destroying and any all dexterity she once had. Soon all she sported was a set of cloven hooves, which scrabbled at the splintered table below her as she struggled to right herself.

Perhaps worst of all about these changes was the feeling of her thumbs and big toes shifting, splitting into a set of dewclaws. They pulled inwards towards her palms and soles, respectively, before sliding with an agonizingly slow pace up towards her wrists and ankles. Even if her body wasn’t mean to stand on what felt like tiptoes, she’d have done so anyways from this cruelly alien sensation.

“Well, you certainly won’t be holding a sword again.” Caster purred. “And I’d imagine that rather than using any wind magic, you’ll only be able to break wind. Just like a stupid. Dimwitted. Moron.”

With every one of her barbed words, Saber could feel a pressure forming in her mind. She whimpered and pressed her snout into the table, drool-snuffling with mental anguish. “NHRRNK! NORRNT mghhy hrreeaad! RRRUI! RRNK NRRRK p-p-puhggGGRNK!”

Saber struggled, her natural affinity for magical resistance devoting everything it had to one last, futile effort. Her eyes squeezed shut, and she stuck her fat pig ass in the air, heedless of how frantically her curled tail was wiggling.

Then, as quickly as the pressure had come, it had stopped. Saber’s eyes opened once more, and rather than the dull brown orbs of a pig they retained much of her natural aqua. That said, they were a good deal duller than before, which was a fate perhaps worse than what Caster had intended.

“Rrnk? Rrruii! SquEEE!” Saber struggled to form words, but could no longer recall much of anything even related to language. She knew what the sounds humans made meant, but couldn’t so much as fathom how to recreate them herself. As far as written words go, they were little more than symbols to her at this point.

“Oh, you poor stubborn thing.” Caster sighed, shaking her head good-naturedly. “You know, I’d intended to give you a rather kind fate. You’d be too stupid to realize anything that you’d lost, and would be content being my personal plaything. Now, however… I’m afraid you’ll be forced to constantly live with the fact that you used to be a beautiful woman.”

True to Caster’s words, Saber could picture her old self perfectly. She could close her eyes and remember seeing a gorgeous, if not well-endowed, blonde in the mirror. But every time she opened her eyes, she was met with a piggy snout, and was left too dumbfounded to adequately express her humiliation and horror alike.

“HRRGHNK-SQUEE!” Saber squealed, looking pitifully up to her owner, and hating herself for naturally thinking of Caster as her owner.

“What’s that? You want fourths? Well, be my guest, Sow-ber.” Caster crooned, lifting from her kneeling position. “I’m afraid that I need to order a new dining table. Don’t worry, this time I’ll get one capable of holding the fattest knight in all the realm.”

Saber snuffled miserably, before her mind recalled what ‘fourths’ referred to. A dimwitted hunger overrode her sense of shame and dignity, and she buried herself back in the spilled food with a squeal of delight.