Luster slowly opened her eyes, still a little dazed from her previous experience. The way the changelings warped her mind with their magic always felt amazing, ever since they'd implanted the association between pleasure and being changed in it. It was almost addicting at this point. The more she was changed and controlled, the more she loved to be changed and controlled, and the fact that she knew she only enjoyed it because her mind had been twisted into enjoying it only made everything better.

Her eyes were drawn upwards as she shakily got back to her hooves, her marehood still aching after her previous orgasm. The spasmodic shaking she'd experienced while being exposed to the sensory overload of magic had left her whole body rather sore, but it was the good kind of soreness. She was sweating, too, and the cool air of the room made that all the more noticeable.

"I see you are finally awake," Ocellus said, from the other side of the room. "Then we can move on to the next part of our lesson." That got a curious look from Luster. Typically, their lessons consisted only of her sitting in the room for a couple of hours while she blissfully let magic mould her thoughts into those of a proper slave to changelings. Seeing her interest, Ocellus continued, "You're familiar with Vertex, I am sure."

Luster followed the direction Ocellus's head was nodding towards and found herself staring at one of the three changelings who usually oversaw and provided her training. He was the smallest of the three, with no antlers but still with the jewel-like formations on his chest. His shell was a lemon-like green-yellow, while his elytra were a brighter grass green and his eyes a grey cyan. She'd never known his name before, she didn't need to in order to know he was superior to her, but now she came to respect it and adore it, as a good inferior and submissive creature should. She nodded towards her teacher.

"Very well." Ocellus gave a pleased smile. "He has been chosen as your future partner. He will be attending the School of Friendship from tomorrow onwards, pretending to be another student. He will personally oversee you in your daily activities. You two will pretend to grow close while studying together, and eventually fall in love. It is important you keep this pretense up, especially in your letters to Princess Twilight. Once you are sufficiently old and have completed your studies, he will breed you so that you may birth more changelings."

Luster was almost speechless, as she stared in awe at her future partner. "Oh, thank you," she said, shaking now more from the excitement than from her tired muscles. "Thank you, thank you, thank you. It is my greatest honor and pleasure to be allowed to mate with a superior creature and further the glorious changeling plans and- and- and give birth to- mmmmphhhhh!" She had to bite down on her lip to block a moan, the idea of giving birth to changelings almost sending her over the edge again.

"Wonderful." Ocellus was downright beaming, a note of acid in her honey-laced tones. "Now, for a proper introduction, and to ensure you are properly attuned to your new personal owner, you two will perform a mating simulation. We will be watching." She took a step back, and joined the the other two changelings at the edge of the room.

Luster stared incredulous between her and Vertex. She could not believe it, she was waiting for it all to turn out a dream. It was simply too good to be true. Not only had she finally received the honor of having a changeling she could fully submit to, but he was about to have sex with her. "Thank you!" she blurted out, before rushing to the centre of the room where Vertex waited for her.

The changeling was already on his back, his hind legs spread to reveal his reproductive organ. The shape he had chosen for it in that occasion was similar to the end of a scorpion's stinger, the curved teardrop shape going from a pointy tip to a large bulb at the base, though a little more overall slim than what an actual scorpion had. The colour was a deep red, standing stark against the rest of Vertex's body. Alongside the surface of his shaft were a series of spike- or thorn-like protrusions, some thicker than others, almost like miniature versions of the organ itself attached onto it. The texture seemed rough and bumpy, almost like thick scales.

Luster sank to her knees and stared at the shaft in adoration. It was easily bigger than her face, and both her mouth and her sex began to moisten at the sight. She knew changelings were the absolute best sexual partners, and she was almost frightened at the thought of how impossibly good the tool in front of her could make her feel.

Vertex spoke, his voice sending chills of arousal down Luster's spine. "It is tradition across different creatures' cultures to fellate a partner's genitals in order to display one's submission. Changelings never cared for such behavior, but I believe it would be an entertaining sight for us, and it could help reinforce your position in your mind."

Luster eagerly nodded, then hesitantly inched closer and positioned her mouth above the tip of his organ. She'd never sucked a cock, much less anything like what the changeling had, but it was her duty to pleasure her owner. She sunk a little lower, taking just the tip between her lips. It tasted oddly sweet on her tongue, and she started to push herself lower and lower, taking him into her mouth.

She didn't even get to the halfway point, before his magic forcefully slammed her down and pushed the entire thing into her throat. She was held there, choking on the changeling's shaft, under Vertex's cold gaze. She couldn't breathe at all, but like a good slave she didn't struggle, and instead moaned around his cock as the pleasure of being used by a superior creature washed over her. It didn't matter that she was passing out from the lack of oxygen, serving was more important. A changeling's will is more important than an othercreature's life.

Vertex gave her half a smile, pleased with her behavior. With the tiniest shift from his hips, the pointy ends of his reproductive organ all snapped outwards and pierced through the surface of Luster's inner flesh, then began to inject her with fluids.

The mare came as soon as the injection began. Her whole body suddenly felt like it was burning, an heat consuming her that didn't compare to anything else. It was so intense that she completely lost track of everything besides the pleasure. When she regained some semblance of consciousness she was lying on the ground, breathing again. The orgasm had ceased, but the feverish heat still coursed through her, leaving her sex gaping and leaking in anticipation.

Vertex stood over her. Seeing him, she understood, and positioned herself on her back, her hind legs spread wide. With mechanical precision in his movements, the changeling sank down onto her and penetrated her virgin marehood with his shaft. It felt oddly painless to Luster, like her sensations were dulled by whatever the shaft was coated in. He laid himself fully on top of her, resting his surprisingly small weight onto her body while his hooves sat over her chest, and stared coldly in her eyes as he hilted his cock inside her sex. He didn't move, simply remaining there for a moment while Luster trembled with arousal and anticipation beneath him. Then the spikes on his shaft snapped outwards once more, and pierced the inner walls of Luster's marehood.

Another shot of pure liquid ecstasy was pumped into her from his tool, and the unicorn came again. A second passed, then another one came, and with it the start of another orgasm that piled onto the first and built up to an even greater apex of pleasure. Then again, and again and again. Vertex remained completely still, but with what would have been a slow rhythm for thrusting he pumped dose after dose of his blissful secretion straight in her bloodstream through her sex.

Lust was screaming and moaning in pleasure, the intensity of the act crushing her. She didn't even have time to catch up with and process the intensity of an orgasm before another one came, stronger than the previous one. And the changeling's cold and uninterested demeanor only added to her pleasure, the way he so casually asserted his utter dominance over her simply magnificent in her adoring eyes.

And then the rhythm increased. First it was three shots every two seconds. Then two per second. Then three, then five, then fifteen every two seconds, then Luster completely lost count as her eyes rolled back and she became completely unable to focus on anything at all. She didn't even know if she was breathing too fast or not breathing at all, and her heart felt like it was going to explode at any moment.

And then, finally, Vertex stopped holding back, and the shots melted together into a continuous stream, one long injection of fiery pleasure into Luster's veins. She threw her head back and screamed at the top of her lungs, thrashing around while the changeling pinned her to the ground with his incredible strength, her whole body twitching and convulsing outside of her control.

And then she felt something. From inside the all-consuming inferno of pleasure her conscious mind was trapped in, she spotted a distant light glowing brighter and brighter, and her eyes rolled back straight just in time to see Vertex's horn as it shone just a hair's breadth away from her face.

The changeling's magic pierced through her brain like a spear, and began to relentlessly flood her mind. Never before had their power reached so deep, forcing its way right down to the core of her being. The truths she was being made to obey reinforced themselves like never before, as she felt herself torn apart between the already impossibly high pleasure and the maddeningly profound warping her mind was now undergoing.

All species are inferior to changelings. This is natural. Submission is natural, submission is good. Being made into a more perfect servant for your superior changeling masters is wonderful. You worship changelings. Vertex's image appear in her mind, crystal clear amongst the raging chaos. You worship me. You love to obey and serve me. You love me, deeply, with all your heart and soul. You are forever bound to me, forever mine.

Luster screamed again. "Yes! Yes yes yes! Fuck my mind harder, split it wide open, fuck my brain like you fuck my cunt!" Drool flew everywhere as she screamed, her eyes completely blank and her muscles tensing unnaturally across her body like she was having cramps. "I love you!" she screamed so hard it hurt, "I love you!" And the soul-tearing ache in her chest confirmed it. Feelings she didn't even know she could feel entwined within her as she surrendered her heart fully to the changeling above her.

Vertex flashed a broad and satisfied smile. Accompanied by a small flex from his chest, both the light from his horn and the flow of substance from his needles increased, and the mare beneath him passed out in just a second. Then he ceased both. Still basking in the afterglow of the love radiating from her, he pulled back out of her marehood and stood up, retracting his organ, slick wet with her arousal, back into his shell. He looked towards Ocellus, awaiting further instructions.

The older changeling walked back up to Luster, and gave a look at her passed-out body. Her eyes were still rolled back into her skull, drool leaked from her mouth in copious amounts, and her posture was certainly off, but she appeared to have suffered no real harm. Smiling, Ocellus dismissed the other three, and then began to carry the inferior creature back towards the library. It would take a bit of time and more than a bit of water for her to recover, but the lesson had certainly been a stellar success.

Author's Note

If you want to know more about the themes of Changeling Superiority and the Nonhostile Changeling Takeover, make sure you visit the Changeling Superiority group.