Companion’s fucking slowed enough to allow her to stand up and walk across the room. However, the stool did not seem comfortable if she were to use the computer and continue to be fucked by Companion. And since one of her primary purposes was now to be fucked by Companion—for science of course—that posed a problem. She didn’t often—
Her horn lit up and a soft, comfortable and well-padded chair appeared before her. She didn’t remember casting a spell, but she didn’t care. She was fine with Companion using her magic. They were practically inseparable anyway.

She sat down and began to study the still-flashing screen. As she did, she found herself getting more and more excited, both intellectually and physically.

“I… I’m processing this…” Twilight whispered in wonder. “Companion, you’ve increased my perception—lust—and comprehension levels! I can—sex—I can… process… all of… of… of—slut—all of this…”

Something inside of her commanded her just to watch and say anything that came to mind. Companion completed his work on her wings. She knew she was one step closer to being perfected, beautiful and complete. Now, only her head hadn’t been claimed by the wonderful creature.

“I can—be fucked in the ass—process all of this information!” Twilight cried in joy. A moment later, she cried out again as Companion’s physical makeup grew to include a smaller dildo in her ass. Both dildos continued to thrust, now in time with one another. “I love—how much of a sex doll I am—this ability! It’s—making me into the perfect slut—astounding.”

She flushed, feeling a little strange as Companion worked its way up her neck. He did it with loving kisses and little nips. But she couldn’t tear her eyes away from the screen, despite the pleasure coursing through her body. And she knew Companion wanted things to happen like this.

“I—am a willing and obedient sex toy—feel actually really—fuckable, as the primary of my body is to be fucked—warm in here where—the entity I call Companion fucked me slowly into an eager and willing sex doll—I’m… uh…” Twilight was having a hard time concentrating. “I should—absorb all of this sexual content to make me a better toy—maybe just… relax—and be completely reprogrammed by Companion.”

Twilight reached out a hand—at least her hand reached out. She wasn’t sure if she thought about it—and tapped a button. The screen changed, becoming a rather fascinating pattern, with an even faster series of images, text, commands and more flashing across it.

Companion, meanwhile, had completely worked through her mane and up the back of her head, up to the back of her ears.

“I’m… starting to—lose myself in the need to be the perfect host to Companion—feel stranger. I—am surrendering to Companion’s will—wonder if…if… what was I saying? Something about—Companion’s desires are merging with mine. I desire what Companion desires—I… forget…”

Twilight moaned as Companion’s loving touch slid through the inside of her ears. The pleasure was incredible. If she weren’t a test subject, she likely would have cum enough to make her pass out. As it was, she wasn’t sure she’d stopped cumming since Companion had claimed her pussy.

Companion began to convert her mane and the sides of her face. Twilight let out another moan. Everything Companion did felt so erotic. So sensual. She could feel them growing closer. They were becoming one. She wanted it. More than anything else in her life. She wanted to be one with Companion. Nothing else mattered.

Instinct told her she needed more time with the computer. Her hand moved. The pattern changed. This one was the fastest of all. Things moved so fast on it that she could possibly capture it all with her conscious mind. That meant she was experiencing subliminal programming and she was curious to find what it would… what it would… what it would—

“Subject name: Twilight Sparkle. Species: Pony. Subspecies: Alicorn. Title: Princess of Friendship. Location: Ponyville, Equestria. Identification confirmed.”

Twilight smiled at confirming who she was for Companion. Was Companion slipping into her mind from her ears now? Fascinating.

“New entity designation: Companion. Species: Synthetic biological/magical hybrid built on malleable framework. Purpose: Locate potential subjects and convert into similar matrix. Secondary purpose: connect subjects to mental link known as Bond for the sharing of relevant data.”

Twilight smiled again. It was nice to know more about her Companion. Her mane had been converted. Why hadn’t it completed its task?

“Status of current subject as follows. Mental conditioning at ninety-three percent. Physical conditioning at ninety-seven percent. Preparing final round of indoctrination. Now activating full sexual inhibition removal.”

Twilight squeaked as something in her mind was flipped off, and within moments, every repressed sexual fantasy she’d ever had came bubbling up to her. She moaned as Companion fucked her pussy and ass rapidly while she fondled her tits, imaging what it would be like to have all of her friends in a circle, slowly converting each one into a creature just like her: an eager, obedient sex doll. They’d be so beautiful, so happy, so eager, so willing, so sensual, so perfect. They all begged Twilight to be converted. They wanted to be converted. Everypony wanted to be converted into a slutty sex doll.

She blinked, trying to figure out if there was anything wrong with that last statement. But she was a sex doll. That was her purpose. Wasn’t it? She…

“Initiating final indoctrination.”

Twilight gasped as the computer screen became her world. Twin cocks thrummed in her. Companion adjusted to include the sensation of tongues lapping her pussy, her ass, her tits, everywhere. In moments, she knew how to perfectly please even the pickiest of mares. If allowed access, her tongue could bring a mare to full climax in a ninety seconds. She could slip behind a mare, put her hands on the mare’s chest and have the mare begging for release within slightly more than two minutes.

So much sexual information. So many techniques. She was learning so much. She gaped as the screen programmed her into the perfect lesbian lover with torrents of data.

It wasn’t like the data she used to know was being erased. It was just being moved aside for new, relevant data. Primarily, acting out her new role as an intensely sexually active mare who wanted to share her brilliance—and Companion—with everypony around her in the most intimate ways possible.

A hard thrust of both dildos forced her to moan. As her mouth opened wide, Companion slipped into her muzzle. She suckled him as he slid down her throat. She coughed once, but only once as Companion and her biological components became one. A sensation of sensual warmth washed over her muzzle, altering it to conform to better sex doll parameters.

Then, Companion gave Twilight a treat. He shifted the part of himself that had just converted her muzzle into a cock-like protrusion. Twilight responded by instinct. She began to suck. Her newly improved tongue washed over the welcome intruder, teasing Companion’s head as she let out a lusty moan. The two dildos—

Companion shivered around her and Twilight let out a soft sigh as she felt her mind be slightly altered. It was such an intensely satisfying feeling, as if Companion had just slid a cock into her very brain and gently fucked her. She didn’t know what he had changed. She knew she would never know. That was okay. Companion knew best.

All while this happened, Companion’s living cocks pulsed in her pussy and ass as his third cock slid back and forth in her eager muzzle. She lavished it with attention, eager to thank the loving creature that had helped her to embrace her sexual nature. She needed to make Companion happy.

Companion vibrated as Twilight felt him consume the rest of her face in a glorious rush of pleasure and warmth. Her mouth remained open so Companion could fuck her there. Her hands fondled her swollen Companion-filled tits as she bounced softly on her Companion-swollen ass.

Her entire body had been taken by Companion’s loving lavender latex-like embrace.

In moments, only her eyes remained unchanged.

The computer screen slammed her again with knowledge. In an instant, she knew every position a stallion could take her in. She knew how to make each of them intensely pleasurable. Her muzzle was adjusted again to make it the perfect fit, not just for Companion’s cock, but for all the blowjobs she would give. Her tits even grew to allow her to give tit jobs better. Her hands wrapped around invisible cocks. As soon as she did, she knew how to jerk them off perfectly. Her cocksucking technique improved on Companion and Companion’s cock in her mouth burst with more of his essence in appreciation. She swallowed it, of course. It wasn’t like she needed more of him, since they were all but one… but she loved how he tasted.

Twilight knew so much! She wanted nothing more than to bury her face in somepony’s pussy while being rammed from behind by a minimum of one stallion as they began to be converted.

And she realized that’s all she wanted. She wanted to fuck and suck now. Her days as a researcher of theory were gone. Now she was the experiment: the concept that anypony could be the perfect sexual partner, as long as they were taken by Companion or one of his brothers or sisters.

She and Companion would become that just as—

“I will state my name, my identity, my purpose and my mission.”

Twilight moaned. She loved it when Companion took total control over her. It was so damn hot. She sounded so sexy when it was Companion speaking.

“My name is Twilight Sparkle.” She marveled at her ability to speak while still sucking cock. Perhaps some sort of advanced magic? And her voice… her voice was the voice of somepony who lived and breathed sex. “My identity is the Princess of Sensuality. My purpose is continued sexual activity. My mission is to create brothers and sisters of Companions by constantly fucking new partners. I will use any means necessary—other than force—to achieve these goals.”

Twilight and Companion’s minds had mostly become one and the same, but they both knew that a forced transformation would be rejected by the host. Seduction and using intense pleasure consistently was the best way to secure new subjects.

Companion finally slid himself over her eyes, leaving her in darkness for a time. Images appeared occasionally before her, quick and sensual. She could never catch real sight of them. But they always turned her on even further.

Her body moved—through no will of her own—and Companion guided her to kneel on the floor. He had her jut out her breasts all while the separation between Companion and her vanished to almost nothing.

She moaned repeatedly as she felt him completing the finishing touches, changing her and altering her, becoming sexier, more fuckable. Despite Companion’s cocks inside of her, she needed more. She wanted another creature’s cock. When she thought that she was rewarded with image after image of cock. Most of them were of herself sucking on them. Or fucking them. Or jerking them off.

She needed a cock inside of her. She needed to have a subject to infect. She smiled as her thoughts were realigned. Fucking someone was the same as infecting someone. And both were necessary.

“My name is Twilight Sparkle. I am a sex doll,” she mumbled. “I am… I require sex to live.”

She knew it was the truth from how her organs had been altered. She had been modified to be able to accept food and liquids, but sexual fluids were her primary nutrients now.

Companion slid deeper into her mind, growing within her as part of her essence. She moaned as she felt the deepest part of her identity fundamentally change. With it, shockwaves rushed through her system, altering her further. Her normally soft pink magic became a hot, lurid pink. Her pussy deepened to better accept cock or the tongues of her lovers. Her mind reeled as Companion rearranged her spells in her head. New spells were added. Spells to make herself more alluring. Spells to craft a perfect illusion around herself so her new nature could not be detected unless she so desired. Spells of lust and passion. Spells to tease and toy. In moments, she had enough sex magic to be a one mare magical brothel. The idea made her moan around the cock between her lips.

Then, the cock slipped away, becoming part of Companion once more, even though there wasn’t much difference between Companion and her anymore.

“I…” Twilight whispered as she stood up and stepped to the center of the room, standing ramrod straight with her wings extended.. “I… oh… Companion and I… I am Companion now. Companion is me now. I… we… merge. Merging. Merging… Merging… Biological conversion complete. This subject is now at one-hundred-percent transformation. Subject core fully consumed. Full merging complete.”

Twilight Sparkle stood in silence for a few minutes, her mind blank and unthinking. Things may have happened then, but she could not process them.

“Subject identification complete. I am Passion Twilight. I am now linking with the Bond.” Twilight moaned, her horn lighting up as she felt her pussy thrum with the need to bond with others of her kind. Casting the spell felt like a new cock of pure magic being drilled into her pussy. “I have established Bond link. Bond link is faint. Other Dollmare is distant. Other Dollmare lacking in sexual data. I am uploading all sexual data to assist Dollmare’s conversion into sex doll.”

Twilight summoned her mouth cock and began to suck again, wanting to enjoy this next part in full.

Twilight squealed. She felt like she was given the best hornjob in history as a copy of all of her newfound sexual knowledge and experience was copied over to the other mare in the Bond through Twilight’s horn. She felt a little sad for her fellow Dollmare. She had been alone for some time and been without the sexual components so critical to their existence as a Bonded Passion.

Her body’s cocks fucked her, though she finally decided she’d had enough blowjob practice for today. She knew so much more. She was a sex doll, of course. But she was also a special kind of doll called a ‘Bonded Passion.’ Her true name had changed to Passion Twilight, though she would still answer to her old name as Twilight Sparkle. That was necessary to bring more into the Bond.

She toyed with her pussy as she thought. To think, just a few hours ago, she would have found such an act to be absurdly lewd. Now, she all but needed to do it. Her body had become perfect. Her new true form was smooth and slightly shiny, pliable and wonderful. Her tits had swollen by several sizes, and her hips and ass had expanded as well. Her pussy had been configured to serve in any sexual capacity required. Her tail and mane now had a rubber-like bounce to them. Even her eyes had changed, her color now darker.

A finger slipped inside of her. She wondered if Companion had somehow corrupted her. Why was she so different than the mare she had been? But she wasn’t sure if it mattered. Companion had consumed her and merged with her. His thoughts were now hers. She didn’t even miss him, because she knew he would—

Two tentacles detached themselves from her sides and began to fondle her massive new tits. She giggled and stroked them lovingly as another part of her body slipped up to mouth level. In a moment, the pseudopod had grown a mouth and lips. Twilight kissed the piece of herself, moaning as the sensation was transmitted to her pussy. She began to make out with the pod, then decided she wanted more. Inside of her mind, she altered her perceptions through memories. Then, she remembered Companion was still there.

She opened her eyes to see her twin there, smiling at her. Celestia, she was hot. The mare before her existed for sex and sex alone. Why did she ever think otherwise?

She willed a tiny piece of Companion into her twin lover. Some part of her knew that it was her new biological makeup responding to stimuli from her lusty, slutty brain instead of having somepony actually there with her. The rest of her didn’t care as Companion and her dropped to the floor and began to make love.

A few hours passed with both versions of Passion Twilight crying out in pleasure—but only one feeling it—until the new sex doll decided it was time for her new body to be properly broken in. Her Companion lover reset and slipped into her, making sure to give her one more orgasm as Companion rejoined her.

Her mental database of subjects opened as she began to fondle herself on the floor again. She lay there, one hand playing with a bouncy tit, the other with two fingers in her pussy as she thought. This was the way she thought now. How did she ever think straight before?

Her friends would be seduced in time, but she could wait for that for a little bit. The idea of fully converting—and corrupting—the Elements themselves would likely have side effects… mainly in the form of the entire town being overwhelmed by their passion, linked into the Bond and seduced into a new sex doll existence. As their Princess of Sensuality, it was her duty to make sure all eligible males and females were converted.

But she needed to start smaller.

Her horn lit up and she moaned as she thrust harder and harder into her pussy, intensifying her magic as she scanned the entire castle for suitable life. Immediately, she locked onto two.

The first was a male pegasus, relatively fit. This one Twilight knew had been harboring a crush on her for some time, though until now she hadn’t been interested. He had been her single allowance to an official guard for the castle.

The second was her faithful assistant, the drake. Now fully in his advanced adolescent state, he turned out to be even taller than the foolish drake known as Garble. Twilight had cum several times to the fantasy of her oldest friend fucking her with that thick dragon cock. She had cum several more times to the act.

Of course, all masculine parts of their anatomy and psyche would need to be suppressed when they joined the bond.

But she could eagerly enjoy both male subjects as they pounded her again and again before they were converted and joined the Bond, becoming perfect sex dolls like her.

Passion Twilight, the Bonded Passion sex doll of the Princess of Sensuality, moaned as she came at the thought of her first two conversions. They would join the Bond, then they would assist her in the slow conversion of the town. Before long, most ponies would have their sexual inhibitions completely removed. They would fuck in the streets and others would cheer, watch for further education or join. They would grow or remove components as necessary.

A second orgasm crashed over her, her gorgeous sex doll body thrumming in joy at the visions of an endless parade of passion. None could stop it. Any who tried would be converted and join in the fun.

Finally, a third orgasm hit her as Twilight smiled. She couldn’t wait to introduce the world to the new her.

They were going to love her.

The only question was if they would love her before or after becoming just like her.

Author's Note

Mmmm... corruption, seduction, transformation, sluttification... these are a few of my favorite thingssssss... :3

I had so much trouble naming this story. Weird, I'm usually fantastic at that~! Twilight also got a bunch a new titles and stuff, huh~? Seriously, what had that cube gotten exposed to~?

Lemme know about mistakes in PMs, cuties~! <3