Erza's Special Training Regimen (Patreon)

The last few days had shaken Erza's beliefs to their very core. For all her life she had always believed that training was her best weapon in all her battles mixed with mastery of magic and specialized weapons, yet it was all crumbling around her from a simple statement Cana made while drunk when Erza tried to get her to train more.

"Ehh whys it even matter we'll just win with th'powerrr o frienship or somethin like allwaysss. Le' me drink!" Of course the very idea that training didn't matter and that all of their worries would disappear through the vague but definitely powerful concept of friendship was preposterous! Absurd! Completely idio- oh fuck she's right!

The realization came slowly over the next few days, Erza replaying her hardest fought battles and trying to remember what exactly had led her to victory, trying to disprove Cana's claim even though she had likely forgotten it a minute after saying it. Sure there was the time she had fought Jellal but the friendship there was just cause she knew him. Completely different. She had won a few battles through skill like the time she had all five senses removed and also was supposed to be unable to do anything. She had won that one through... uh... w-well okay sure her thoughts of her friends had helped her to soldier on but then when they were all gonna die against acnologia they... dammit. Uh and Zeref they won through... well there had to be like one big battle that... um... maybe... shit.

But Erza being Erza rather then let it get her down she quickly adapted, realizing now that she could still train the guild's greatest weapon, friendship, from behind the scenes. This proved difficult, petty fights constantly breaking out, Natsu and Grey always a powder keg in their own right, and strangely Lucy always seemed annoyed when Erza tried having a girls night out at 3 in the morning so they could cram as much friendship as they could. It wasn't like she had broken her door this time, and it was just a window. But while Lucy was yelling for her to get out, Erza happened to glance at a magazine that promised advice for how to have successful relationships and most importantly "Better Your Friendships With Your Gal Pals!"

Treating the trashy checkout bargain bin magazine like some ancient text, she smiled, gingerly grabbing it and leaving through the front door, accidentally busting the hinges when she tried pushing instead of turning the knob. She was certain this was what she needed to reach next level friends with the guild, poring over all the relevant articles, wondering why there were so many advertisements with half naked guys in a women's magazine, but deciding whoever had written this must know what they were doing.

It was informative to say the least. It didn't mention breaking windows as something friends hated but it did suggest actually planning in advance instead of breaking into their homes. And sure enough when she planned an outing with Lucy in advance, there was no more anger! But there were a few rather strange caveats to the magazine's view of friendship. Hoping to find something for her male guild members, there was luckily one article titled "Men: Can you even be friends with them?" It was utterly life changing.

Apparently, girls were much friendlier than guys, which due to confirmation bias and Erza not being the best at noticing other people's discomfort, immediately made sense. She was always the one trying to get public events rolling. Whenever she dragged Natsu and Grey out for training, did they ever thank her or suggest fun exercises for the next surprise training day? No they just yelled at her and begged her to go easy on them, like a real friend would pull punches! In fact the article continuously mentioned how much better it was to find people like you, ergo girls, to befriend as gal pals were friends for life, while guys apparently only cared about sex. Erza did have doubts on that, finding that preposterous, yet when she publicly asked Natsu if he ever thought of sex around her, his sudden blush and nervous stuttering gave her all the answer she needed.

Damn, maybe Mermaid Heel had the right idea in only accepting women, yet they must be doing something wrong since they usually lost to Fairy Tail whenever the guild tournaments were held. Then they must not be taking their friendship training seriously! In fact there was one time Grey had accidentally been turned into Juvia through a magical mishap and if Erza remembered correctly, the twin water mages' fighting abilities had soared along with their cooperation right until he had turned back. This meant her guild had large areas to improve on, though she doubted the men would approve of having their gender forcefully shifted if Grey was indicative of the rest. Then again it wasn't like she'd give them much of a choice.

But her magic wasn't transformation based past aesthetics, ex-quipping just a convenient way to bring a revolving door of battle armor and cute outfits, though now that she thought about it there was one outfit in particular that could be promising. Ascensa's Battle Neglige. The simple yellow bra and panties boosted all physical abilities and were also self mending and self washing. Additionally it was soul bonded, which meant that once worn it would be linked to the wearer's soul for life and it had also been kept between an artifact of healing and a totem of fertility, both rusted away by the time Erza had gotten to the high quality battle gear. She had been warned not to put it on a second time due to all the chaotic magics swirling inside the simple pair of undergarments. The only thing more important than her not wearing it was for no one else to put them according to the guild master due to their potential for corruptive healing, yet the idea of that suddenly seemed just what the doctor ordered.

Never one for subtlety or subterfuge, Erza just barged into the guild, looking for Natsu and Grey, but only finding Natsu spitting fire on his shot glass to make it tastier before downing it. The red faced mage instantly sobered up when he saw her barreling towards him, quickly getting up, ready to escape but she was on him before he could even summon a spark.

"Natsu. Training. Your Place. Now."

"W-Wait Erza I just got back from a long mission and that exhibitionist is away for once can't I just have fun for once?!"

"Are you saying my training isn't fun?"

"N-No! You're an amazing teacher and uh... crap."

"Well then lets go. Besides I'm sure Grey will be shocked to see how much you've changed and improved by the time he gets back.

He didn't go willingly, but he went all the same, Erza dragging him out of the guild, down the streets of Magnolia and through the forest until they had reached the overgrown hut he called home. To Natsu's surprise they went inside instead of what he assumed would be an outdoor beatdown where only some trees could get destroyed. The guild was still paying off the town for the last time Erza had had a training session in the middle of town square, and some of those buildings had only just been rebuilt.

Natsu's questions instantly doubled though once Erza threw him onto his bed, and then exponentially grew once she tore off every scrap of clothing on him and left him naked and scared.

"Wait what kind of training is this?!" She laughed.

"Don't worry I've been reading some magazines on this and it's the best way to amplify our guild's power. Now I must warn you, this will be personal in a way you've never felt before and will require every inch of your body to be properly trained, though according to a few mages who have done this thing before, it will be highly pleasureable." 

Natsu squirmed, covering his groin with his hands, trying to talk his way out of whatever the hell was going on.

"Uh d-don't you think this is going a bit too fast? Like shouldn't we do stretches or something?"

"Nonsense I think it's best to go right into it like always. Prepare yourself Natsu!"

"EEEEP!"

"And Ex-Quip on Natsu!"

"Please I'm not ready to be... wait what?" 

The magical clothing formed around his chest and dick, the force blasting his hands away as his cock was tightly hugged by a pair of yellow panties, the bra much looser on the front though the metal clasps on the sides and back dug into his muscles painfully.

"What the hell is this?" None of this was making any sense to him, his mind racing over why she'd drag him a few kilometers just to put him in one of her outfits. W-Wait was this some kind of fetish thing? It did make sense for her to be a dom given her personality and his fears were only verified as the girly undergarments began to glow, chains materializing to bind him to the bedposts, his ankles, neck and hands thoroughly restrained. He tried using fire to melt them, but they were resistant, and once the fabric began to buzz against his body all that left his mouth were confused moans.

The silky garments were cupping his balls, gripping his scared flaccid cock and hugging his butt as the they pleasurably rubbed and vibrated against his body, the cups of the bra above suctioning up against his chest, starting to suck. Natsu did his best to fight his own body's arousal, but it didn't slow his rising erection and his clenched teeth parted quickly enough in pleasure. They weren't just rubbing up against him, he could feel them sucking something out, a slow but steady pull from both of the garments leaving him feeling drained of something. Worse it was definitely doing something to his skin, his chest never exactly an erogenous zone, but the longer he felt that strange draining sensation from his chest, the better it felt as a prickly pleasure spread.

"O-Ohh~ what's h-happening?" Erza was just watching it all unfold, nodding with approval as the skin around the edges of Ascensa's Battle Bra was paling, gaining a luster and smoothness that was spreading quickly down his body.

"Hmm? Oh right. Natsu I have been trying for days now to figure out how to best level up our friendship for the battles to come." She paused as he gave a series of surprised ekes, the untrimmed patch of pubic hair peeking out of the top of his panties darkening as the unruly hairs plucked themselves one by one, his hips wiggling a they soon sheared themselves to a tidy triangle of scarlet.

"Well long story short you are being turned into me so we can become gal pals and be stronger together. Doesn't that sound fun?"

He waited for there to be a punchline, for Erza to say she was joking and this was all just a prank gone way too far. All she did was smile like she hadn't just said one of the most horrifying things he'd ever heard.

"NO THAT DOESN'T S-hound F-FUN! WHAT THE F-huck is wr-ahhhng with, with ooooh~." Now that he knew what was happening he was acutely aware of the sensations, feeling his nipples prickle as they puffed out, the large tweakable buttons widening, intensifying the alien barrage of spreading eroticism in his pecs that was now sweeping down his abdomen. With no real plan in mind and a fear of losing his dick removing the little bit of thinking he could muster up in the best of circumstances, Natsu began screaming his head off for help as loudly as possible.

"HEEEEELLLLLLP!!! HEEEEEELLLLLP!!!"

"Natsu why are you fighting this so much I've been assured by real experts that this will help our guild reach new heights, besides there's no one here to hear-"

"Heyo Natsu what's with the yelling?" Happy flew down, still drowsy from his usual mid day nap, wondering why his master was making such a ruckus. Erza just stared dumbfounded at the flying cat, wondering what to do with it.

"Happy qui-hick~! G-Get these panties off of me!"

"Huh? Why not have Erza take care of them?"

"C-hause she's the crazy person wh-OOOH p-put them ahhhn me! Hurry they're changing me!"

"Sure thing! I'll scratch right through em!"

"Uhh you might not want to do that." Erza interjected, trying to prevent what was about to happen."

"Uh Natsu, Erza said-"

"Who cares what she says just get me out of these things n-oowwww~!"

"Okay!" True to his word, Happy clawed through the material easily, their buffs only applied to the user, not the articles themselves, buuut they were also self healing so the more he slashed at them, the faster they reformed, Happy's body draped in yellow slices, not noticing they were clamping down on his body till it was too late.

"N-Natsu I'm stuck!" The yellow strips were reforming to tassled ropes, binding his stubby arms and legs together, more fringes wrapping around his hips, two around his chest and a circlet around his neck. His own chains quickly materialized, comically smaller than Natsu's but perfect for keeping him restrained, the two buddies both bound and changing, Happy's fate sealed as he gave his first few confused mrrowls. Erza wasn't really sure what to think of this turn of events, a bit sad cause she always found Happy to be cute, but this just meant her efforts would yield even greater results than anticipated.

With Happy's tiny body there was a lot less to corrupt and a lot more of the Erza bonded clothing, his changes on a fast track as he was fully submersed in Erzafication. His paws were the first to go, the pads separating into four, a stubby thumb popping out while his foot pads wriggled out into toes. The tassels were running over his fur, plucking each strand and adding it to their outfit, blue sleeves and leggings slowly crawling down his growing arms and legs. His tail waggled around crazily at first, but eventually it slowed, the flexible appendage stiffening as it pointed straight down. Happy could feel pressure building in his backside, the vertebrae shaking in his tiny form as his tail pressed harder and harder into him until with a clanky pop it slid in by two vertebrae, the small blue cat yelping happily as its height shot up by three inches.

"O-Ohh~ Natsu!" Happy's voice was warbling lower, turning huskier, stronger. The changes were ransacking his face, the top tufts of fur turning a matching scarlet to Erza's while the rest was being picked clean for the growing sleeves on his hairless arms. Another inch slid from his tail into his spine, Happy's neck popping up as the bones in his oversized face jittered and snapped.

"This-" The bulbous ears on his head were sliding down, pushed by growing waves of red to the sides as their points rounded, the insides folding and compressing as the backs disconnected, fully human now in appearance.

"-feels-" His eyes were shut in contentment, the large lidded eyes crinkling down into slanted ovals, the eyebrows sparking red as his eyelashes fluttered, pulling his whiskers in to fuel their own growth.

"-soooooooo~"With the sustained moan his voice finished shifting, Erza's sultry tones leaving lips that were plumpening, their upward cleft to his nose separating as his wide mouth shrank, pouting pleasantly as the chubby cheeks found separation from his jaw, his chin compressed to a sharp point.

"Goooood~!"With a flutter he opened his eyes, the once solid black pupil now a perfect match for Erza's, in fact with the growing blanket of scarlet now drifting past his back, his face was a dead ringer for the mage's, the black snout tip upturning as rosy cream overtook it, the nostrils encased as the sides connected to finish off his shifting visage, and from the following purrs and moans Happy was loving the corruption.

Natsu could feel his own will wavering the longer it went on, his muscles throbbing as they compacted, his toned physique pulling tighter, each change sending hot shots of lust through his sensitized skin. The strap on the bra was pulling tighter, ever so slowly digging deeper into the muscle, his body giving way to the pull of the lingerie as his spine cricked inwards, the straps cinching his waist to an athletically feminine core, his slender abdomen now twisting furiously with horniness and power. It was so tempting to give in there and then, his balls feeling so good as his ass and chest were accented by his curvier spine, though one look at his barely recognizable friend shocked the capitulation out of the dragon slayer.

While he(?) still had a tail, wings and his body was kind of a nightmare of proportions, his skin was now hairless and creamy, the blue fur all turned to fingerless sleeves that wrapped around manicured fingers and similarly designed leggings. The white stomach fur was now a loose bra and panties, a slight bump in the latter showing Happy was still male, but all the former cat wanted to do was become Erza, squealing with every change, begging for his arms to finish growing, thighs to thicken, to be complete.

"C'mAHHN H-Happy you gotta fight it you gotta-" Happy cut him off, giving him a devious grin as he responded, "Ohhh~ you know I-NNGH love fighting Natsu that's why I'm getting str-AHN-ger and- OHHH~! OHH YES!"

Happy's tail was rock solid, the downwards pointing limb corkscrewing up into him as his height shot up by feet, his miniscule torso now gyrating with feminine curves and thick clusters of muscle that danced as his tail shoved in further, segments of spine crowding together as his back arched with a high pitched screech. The last bits of tail shoved themselves in, this time adding mass to his legs, thighs thickening with muscle and fat, ass pressing the white and gold panties tight against his small, throbbing junk until a she howled, a wet squelch accompanying a rush of fluids trickling down her thighs, the outline of her new lips leaving no question what she had down below.

The only thing left was her depressingly flat chest, the cups of her bra hanging loose. Desperate to feel complete, the Erza-light clone slammed her back against the bed, squealing as her wings were forced into her body, all those feathers and cartilage swelling out the front as luscious, bouncy fat. With a final shriek and thump her wings fully receded, two large breasts surging out front, threatening to break her bra open with their violent emergence, the final changes making her cum as her chains disappeared, now a holder sword for their new master.

"How do you feel uh..."

"Erza. I feel so much like Erza right now..."

"Well that'll be confusing, but we can figure that out later. Do you feel friendly now me?"

"Ohhh amazingly friendly! Though..." She turned to Natsu, his shoulders fully rounded, one black iris now brown.

"I feel like we could get eeeeven friendlier~!" She cooed as she started touching her past best friend, ready to spread the camaraderie.

Some of her cat-like tendencies must have still remained as she began playing with her prey, sensually rubbing Natsu's body, giggling as her hands worked away the bulging muscles in his arms, danced around his slendering fingers, gripped his palms in a death vice that left them dainty.

"Doesn't this feel better... Erza?" Natsu squealed, something in the back of his mind throbbing excitedly at being called that, each throb accompanied by a small growth of hair, the pink pigments darkening.

"Ohh~ p-please don't MMPH MMM!"She kissed him, teasingly biting his lips as they turned soft and pouty, puffing them outwards with her love bites. And each successive smack felt better for the both of them, Natsu's face crumbling under Erza's pressure, his other eye fluttering as the iris browned, two identical lips opening to let twin tongues hug.

The masculine grunts coming from Natsu's mouth seemed out of place now, the throbbing in his head getting worse as each squeal sounded wrong, throwing his voice up an octave but still hating the results. He definitely didn't hate it when Erza's hands found his ass, her fingers bringing new life to the hardened muscle. She felt it up, her fingers sliding under the panties to firmly grasp each cheek and squeeze, Erza's absurd strength soon turning his muscle to warm, fatty putty.

"Want me to give you a nice firm ass Erza?" Natsu's body was trembling, ready to scream out 'YES,' loving the slowly but surely swell rounding his cheeks and stretching the panties taught. Somehow he relented, unable to shake the feeling that this was somehow weakness on his part.

"S-Staaahhp c-calling me th-AAAAHHHH~!" It wasn't like she'd give him a choice, her hands squeezing and slapping the jiggling masses, driving him wild as his booty continued to swell with firm, round goodness. Erza grinned, noticing a slight warble to his voice now, his cries rising as she slid her fingers under the taught panties and gently cupped his cock.

Erza moved away, Natsu's pleasured screams evolving into a fireball, his Adam's Apple burning away as every last spark of fire magic in his body spewed out in a glorious show, Erza's husky moans left behind as his cock was rubbed and his balls squeezed. Erza smiled at the slowly dulling gleam in his eyes, his mental fortitude crumbling as he came. Fiery spurts of semen spat out his tip as she massaged his needy dick, his body trembling with every tumultuous  release. He didn't even have the strength left to deny it, pleased moans and ecstatic ekes accenting the building changes as the thickness of his ass spread lower.

Natsu was almost at acceptance, loving the raw power dripping into his thighs as they thickened, muscle and fat reshaping them into cushiony crushers, his calves now curvy, supple and strong. Erza's grip gradually tightened on his balls, each orgasm growing in strength as he could feel them pushing in, shrinking with every release. Finally he bucked his hips forward, grinding against Erza's hand, slamming his testicles against them until his entire scrotum was forced inwards, hot, clear fluids spouting now from his mind numbingly sensitive cock.

"AHH! OOH! YES! I WANT IT I WANT IT!" Natsu this time initiated the makeout this time, more of Erza taking root in his mind, his body desperate to be close to her, to BE her. All of those pointless memories and personality traits were being pushed out, sucked away by the cups of his bra as he arched backwards, his cock shooting in an inch while his chest swelled out a few inches. With something to latch onto finally, the bra was relentless, forcing his body to conform, fat multiplying as his nipples soon rubbed against the soft confines of the underwear.

Another inch shot inwards, ecstatic shrieks ringing out as his breasts jiggled, sending more and more pleasure coursing through his body. There was no Natsu left in her, only Erza as the pink tips of his flowing hair turned scarlet, tickling his ass cheeks as the magic hummed. She slapped away her triplet's hands, relishing in the final changes herself, jerking her shrinking cock as hot liquids flowed from her aggressive rubs. The tip was distending, her fingers circling the widening slit before shoving one in, two inches shooting in immediately as her cock turned stubby. The forming muscles were sucking on her finger, pulling her deeper into a growing haze of ecstasy, the chains tightening one final time.

Her ankles popped, the changes rushing down to enclose her feet in perfection like the rest of her. They spasmed as each wondrous spot of Erza overtook them, callouses stabbed away, heels crushed to slim bases, her soles and toes dominated by pure feminine strength. It was finally ending, Erza screaming as she shoved more fingers down her widening snatch, her whole cock slurping inwards with gurgly, moist squelches as it inverted, one final release christening her new womanhood as she came into the fold of Erzadom.

The chains started disappearing then, coalescing into her own broadsword as all three Erzas felt the hum of sisterhood, their bodies all in sync with the original's exquipping system. While it had definitely been more sexual than she had expected, Erza was delighted to feel the increase in magical cohesion, and there was no doubt in her mind that the two copies of herself were more than incredibly friendly with each other as they explored their new bodies together. Erza waited patiently for Erza and Erza to finish cumming, the two hers panting excitedly having satiated their lust, and now ready to satisfy their lust for battle.

It was a complete success in her eyes as her guild mates finally stood toe to toe with her, their attacks clever, overwhelming and a very strong net gain for the guild. The three of them collapsed excitedly, thoroughly worn out, yet nothing beat the sweet muscular ache of good training. The only damper on their moods was the realization that they had used up the spare magics that had spilled into Ascensa's Battle Neglige, still a good buff, but it wouldn't be enough to train the rest of the guild in her friendship course of betterment. Yet they were Erza. That small stumble wasn't enough to get them down for long, not with proof of their successes panting next to them. They'd just have to bring the other girls into the plan as well. The guild had plenty of magic to use and abuse and surely none could doubt their plans merits once they saw the three of her battling in sync. This was the dawn of a new age of Fairy Tail, and they wouldn't rest till the light of sisterhood fell on the rest of the guild.