Chapter 1
Corruption
Celestia woke up. Where was the sun? She couldn't feel the sun. Her eyes shot open in a mixture of surprise and shock at her sudden loss of power, and she found herself looking through a thin, green, semitransparent wall.
She pushed against it, but to no avail - it was rock solid, and no matter how hard she struck, it didn't so much as wobble. She was stuck there.
"Ah, 'princess', you are awake." a voice spoke, echoing throughout her head. "What a shame it had to come to this. Were it not for that meddling would-be sister of 'mine', this could have gone so much more smoothly."
"What...? Who are you?" Celestia grunted, speaking aloud.
The voice continued, still assaulting her mind. "The changeling queen, Chrysalis. Soon, I shall be the Equestrian queen too - your kingdom is mine."
"No! I won't allow it!" Celestia shouted, helpless in her binds. With every ounce of strength she could muster, she summoned every last scrap of her power, and struck out at the sheath surrounding her.
Nothing.
"What... what do you want?" Celestia whispered, a few moments afterwards. "Surely we can do this more peacefully?"
Chrysalis laughed. An ugly, bitter laugh that sheared through Celestia's thoughts like a serrated knife tearing through flesh. "I just want love, that's all. And I'll take it from every pony there is. Starting, my dear princess, with you."
"No! My student will stop you, I have trained her for this day since birth!" Celestia snapped, confident that no matter what, Twilight would prevail. She always had.
Again, Chrysalis simply laughed. This time it was joined with half a sigh, "Your students have already been subdued, Celestia. My changelings are bringing them back to us as we speak, but should they resist... they will have to be punished before they reach us."
Celestia gulped. "You leave them alone." she warned.
"Or what?"
"I... I will give you what you want, if I can. Just don't hurt them." Celestia pleaded. She had no intention of doing either, of course - she knew she just had to buy them more time. In time, they would prevail, she knew it.
Chrysalis giggled. Her giggle was like air bubbles rising to the surface, and popping - except instead of water, it was acid. They burned Celestia's ears, though they still echoed through her mind. "Oh, pony. You'll give me what I want no matter what I do. Look at your wing, if you still have the strength to turn your head."
Celestia complied, fearfully turning to stare back at herself. The tip of her wing was grey and frayed. "What is this?!" she gasped.
"I lied, before. We don't just need love, we need to reproduce, too. Every race we destroy, we take the best of them into our own ranks. It seems you, my dear, are the best of your race. Pitiful, but we always need good workers."
Celestia gulped - Twilight had better have some kind of plan.
"Now sleep, pony. Good night, and don't let the bugs bite."
Celestia felt her pod slowly begin to fill with a green, foul smelling goo. As it covered her face, she began to slowly lose conciousness. Her last thought was of Luna.
Celestia slowly drifted back into conciousness. She felt a little stronger. More importantly, she felt the familiar feel of the sun in the back of her mind. Peering through the goo, which seemed to provide air as well as sustenance, she saw Twilight and her friends standing in the hall, being held down by large changelings.
She couldn't hear what Chrysalis was saying, but she could see her pacing back and forth, clearly in the middle of some monologue. Twilight struggled against her captor, but they were too strong, and she was forced to the ground.
Celestia paused, something in her mind distracting her from desperately trying to hear what was going on outside. Just behind the sun, there was something else, almost invisible. It would have been invisible, had she not known how her sun felt with such familiarity. A darkness lay there. Celestia reached out, mentally touching it, and-
"As for you six, your efforts are commendable. Truly you are the best your species has to offer. Underlings, take them to the pod chambers and prepare them." Chrysalis spoke, as if directly into Celestia's mind once more.
She pulled back - what was that? How had that happened?
Twilight and friends were dragged out of the room by their guards, and the doors swung shut behind them, leaving Celestia and Chrysalis more alone. Celestia felt other presences in the room, but she couldn't see them through her tiny pod viewport.
"Ah, my Celestia, how are you feeling?" Chrysalis asked, her voice laced with humoured malice.
"Better." Celestia spat. It was true, she did feel better. She felt well enough to do something she was sure Chrysalis wouldn't be expecting.
Celestia concentrated on the sun, drawing in its power and harnessing it, letting it flow through her. The full rage of the sun burned through her body, and she felt the goo begin to boil around her. She screamed, letting the energies loose into the pod around her, shattering it.
She flipped over in mid air, landing on the floor, her four dark hooves splashing in the pod-goo remains. "Now," she warned, pointing her blackened hoof at her queen, "you die."
Diving forward, Celestia pointed her horn forward, moving for a killing blow. She couldn't defeat this thing with magic, so perhaps simply physical force would do.
"Stop." Chrysalis commanded. Her voice rang throughout the hall, battering against Celestia's ears, and she fell to the ground in agony.
She laughed, a dark and bitter-sweet sound, and kneeled down in front of Celestia. "I see. You are feeling better, good. Now we can continue. Get up." she commanded. Celestia rose.
"Did you really think you could oppose me now, oh 'princess'? You have spent the past several hours in our conversion pod, and yet you still pretend to act freely. I commend you, you are stronger than I had thought. Still, you are weak." Chrysalis scolded, reminding Celestia of those times so very long ago, when she was simply a filly being told off for doing wrong. How long ago had it been since she'd had a mother? Ten, twenty thousand years? Too long.
"You won't get away with this." Celestia warned, struggling against herself to drive her horn through Chrysalis' chest, ending this once and for all. Her legs refused to answer her calls.
"What have you done to me?!" Celestia demanded, snorting and with her eyes burning with rage. Even if her body wouldn't answer her, her mind still would - and her mind had a direct connection to the sun itself. "Answer me, or we all burn."
The sunlight rose in intensity as Celestia allowed her rage to blend through, setting the sun alight and raising the temperature by several dozen degrees. She saw the sweat begin to form on Chrysalis' face, slowly dripping down or soaking into her beautiful mane.
"Calm down, subject," Chrysalis commanded. Celestia allowed the sun to shrink, but not completely - she wanted answers, and if compliance would get her them, that was something she was willing to do. "Thank you. I have given you a gift, child. Even now, your body is changing, and soon you will be able to change it at will. You are becoming one of us, and you will be accepted into our society."
"I don't want that," Celestia whispered, "I need to protect my people."
"Oh, but they aren't your people any more. Look," Chrysalis prompted, waving her hoof over to the ponies held hostage at the side of the room. Shining Armour stood guard, his face expressionless and stoic. Weak.
Cadance stood before a group of smaller ponies Celestia regrettably did not recognise. Her legs were bound by the same sort of goo that had made Celestia's pod, but her eyes were different. Fearful. Her eyebrows were furrowed, and she was staring at Celestia with her mouth half-open. She was terrified.
"No..." Celestia whispered, seeing the fear in the eyes of one of her subjects. Former subjects. "No, you have taken everything from me." Celestia whispered, letting her head fall in shame.
Chrysalis laughed, sounding like a shattering gem tinkling against a stone floor. "Not at all, I have given you all I can. You want them to love you, Celestia? You must take it. You can take it. You want power? Take it from them."
Celestia did want power. She needed it - she had to protect her people, and she couldn't do that as she was now. Cadance stood there, helpless before her as Celestia began to walk, slowly moving at her prey.
"Mi Amore Cadenza," Celestia spoke as she neared the terrified pink princess, "It appears that I need love to save my people. You hold power over it. Give it to me." she demanded.
"N... I can't. Celestia, you are not yourself!" Cadance yelled, overcoming the fear that had been paralysing her.
"Do not deny me, I am your princess!" Celestia shouted, letting the power of the sun flow through her voice in a show of power she had felt unnecessary for a thousand years. "Give it to me, or I shall take it. The fate of the kingdom rests in your hooves. Do not fail me."
Cadance looked away. "No, Celestia. You... you are not my princess any more."
Celestia raised her hoof, and brought it down on the pink pony's horn. It slotted perfectly through the newly formed hole, and she used that to grip it, pulling her forward and to the ground. "Give it to me!" she yelled, holding Cadance's head against the ground.
"Yelling won't get you anywhere, my child." Chrysalis advised, "What you seek is not a physical thing to be given away. You must force yourself into her before you can truly persuade her."
Celestia considered it. She was about to do a truly monstrous thing, but the stakes were too high. She needed this. She knew that though Cadance was weak, so was she - in a straight mental battle, she may not win. Though her prize was not physical, matters of the body could still affect the mind.
"Chrysalis! Help me!" Celestia begged, "I cannot do this alone."
Chrysalis smiled. "This is your task to perform, child, but if you so desire I shall provide some small assistance."
Chrysalis lowered her head and set her jagged horn aflame, and Cadance's head was wreathed with green. Her eyes began to unfocus as her body fell into a deep and total heat. Celestia smiled - her mind would be no match for her now.
Celestia pressed her own horn to Cadance's, and pushed herself inside. Immediately, she was assaulted by visions of untold strength and clarity. She saw Cadance rising up, pushing her to the ground, and kissing her. She saw Chrysalis performing unspeakable acts on both her and Cadance. She saw Cadance wedged between her two princesses. She saw so many things it was overwhelming. She had been prepared to meet any oncoming mental attack head on, she could not avoid this. It poured back into her own mind, setting her body alight with passion.
With what concentration she could muster, she mentally rushed forward and took her prize, stealing the heart of love from the very centre of Cadance's being. It invigorated her, strengthened every muscle in her body. Celestia felt like she could take on the world, and win. Everything could be putty in her hooves with this power.
"Love," Chrysalis spoke, "Love powers us all. For most, that is a metaphor, but for you and I, it is literal. Only through receiving love can we feed. Aren't you hungry, Celestia?"
Celestia was starving. Without the pod goo, she was lacking nutrition. She needed a snack. Cadance lay before her, quivering on the floor. The look in her eyes wasn't fear, it was lust - her mind had given in to her baser desires, and she looked like she would do anything.
"Is... lust enough?" Celestia asked, looking back at her queen.
"No," she replied, "but don't forget, you aren't just a pony any more. You can control them. Twist that lust into something stronger, and feast. Do it now."
Celestia turned, and pressed her horn against Cadance's neck. Reaching around the sun, she dived into the darkness, letting it flow through her as she directed its power, grabbing the throbbing veins of primal lust running through Cadance's body and twisting them back into themselves, putting every throb and wave of animalistic heat into a true and pure love.
"Ce... Celestia!" she gasped, looking up in adoration. Celestia's face was dark, and rough. Her legs had gaps and holes, and her wings were in tatters - but she was recognisable. "You came back for me!"
Celestia laughed, a bitter-sweet sound. "Yes, child, I did."
Celestia could not turn the power back onto herself. Her own heat, brought on simply from exposure to one so deep in it, was too great. It was distracting. It had to be dealt with. She pulled Cadance back a few notches, balancing her lust and love, and looked back down upon her pet.
"Celestia, I... take me, now." Cadance demanded. Celestia was only too happy to oblige, shattering the binds around her feet effortlessly as she pinned her to the wall and kissed her.
Their muzzles meeting was electric. It felt like energy was flowing through them, leaving Cadance and shooting straight into Celestia. She felt stronger every moment, every brief wrestle of their tongues making her ever stronger. It wasn't enough, she needed more. She needed more to... be stronger.
Celestia pulled Cadance down, and slid her underneath her body. Cadance did not need further instruction - her own body gave her enough of that. She jumped up, pressing her muzzle against Celestia's black slit and attacking it with an eager tongue. Quickly, she ran her lips over Celestia's, taking in the sweet nectar, and giving up her energy in return.
Her tongue probed deeper as the flow of power increased, and Cadance felt compelled to dive deeper, to push herself as far inside Celestia as she could go. They both needed something desperately, with every fibre of their bodies.
Cadance put her hooves on Celestia's rear, holding herself up to make her entrance easier. Every few laps, she made a detour and gave Celestia's darkened clit the tiniest nibble, sending lightning strikes of pleasure through Celestia's body, and a tsunami of energy transferring between them.
Celestia groaned, resting against the wall as Cadance's tongue serviced her with all her enthusiasm. Celestia felt good, becoming stronger and stronger the more it went on. She'd had sex before, but this was something else. A thousand, a million times better. Every wave of pleasure crashing through her body was joined by one of strength empowering her mind - she wasn't getting any closer to orgasm. She felt like she could go on all day, just lingering at untold heights of ecstasy for as long as her plaything could continue.
Which turned out to be not very long. After a few more minutes of adoration and service, Cadance collapsed, her energies completely drained and her face grey. Celestia pushed her aside as she returned to her teacher.
"Did that feel good, Celestia? It did, didn't it?" Chrysalis asked.
"Yes, queen," Celestia replied, her voice harsh and her eyes narrowed. "Now, it is time for me to do what I set out to do, and protect my people."
"The same people you can now so effortlessly control, and feed from? The same people who are beneath you in every way? The same people who even now, flee for their lives from things that look just like you? Why, Celestia? Why, when you could be so much more."
"I have always been stronger than them, Chrysalis. I have always been able to control them, and I chose not to. I am stronger than you give me credit for. My body is nothing but a tool of my mind, and the sun does not discriminate."
Celestia lunged forward, pinning Chrysalis to the ground and pressing her horn into the black neck. "The sun does not harm intentionally, it does not feed off of others. It brings life, and love, and asks for nothing. You say I am among the best of my race? You lie. I am just a servant to them, as the sun is. I will protect my people, and you cannot stop me."
Chrysalis laughed. A beautiful laugh, like a chorus of angels singing on a warm beach on a summer's day. "Oh, child, you still fight," she happily sighed, shaking her head. Her voice hardened, and her horn shone. "Adorable."
Celestia felt the sun go dark. The sun in her head, not the sun in the sky. The two sources of power in her mind had merged, and Celestia couldn't separate them. She needed to end this, now. She tapped into the power of the dark sun, and let it flow through her.
Chrysalis smiled, feeling Celestia's mind join the collective. Immediately, the thousands of minds that made up the changeling hive turned on her. She fought valiantly, her expression shifting and twisting as her corrupt sun did all it could do fight back, but ultimately she was fighting a rigged battle.
"I apologise, my queen." she whispered a few seconds later. "I did not mean to challenge you."
"Good, Celestia. Good. Don't you feel stronger now? More alive?"
"Yes, Chrysalis. Thank you."
"Isn't there a little something still bothering you, though? We can see into your mind now, Celestia, we see you are still plagued with unwanted emotion. In time, your new body will remove such difficulties as heat, letting you focus your energies on pleasure as you wish, but for now, what say we deal with it differently?"
"I can manage, my queen. I do not wish to be a burden." Celestia apologised, confident she could keep her own mind under control.
"Nonsense," Chrysalis smiled. "Think of it as a thank you gift, to me. Your energy shall be most delicious."
Chrysalis motioned for Celestia to kneel, and walked up to her. Celestia gasped as she saw Chrysalis's chosen tool for the job - a well above average sized penis, modelled much like a pony's. Just bigger. Celestia wanted it - needed it. She would gladly give some of her energy to feel it inside of her.
"Yes..." Celestia whispered as Chrysalis walked over her, bringing the dark shaft to Celestia's eagerly awaiting mouth. Immediately, she moved, wrapping her mouth around the tip and starting to lick. She felt herself grow weaker with every impassioned lap, but knowing that her energy was going to please the Queen made her happy, too.
"Yes, my pet," Chrysalis whispered, stroking Celestia's mane with a green magic field. "You clearly have much practice at this."
Celestia nodded, moving the oversized shaft around in her mouth in response. The energy flow wasn't fast enough, she needed to give more. The hivemind demanded it. Slowly, she began to pull her head back and forth, running her lips along the side of the mottled shaft, feeling its firm body squeeze between them, and covering it in a thin layer of saliva.
The queen's precum tasted like beautiful nectar to the indoctrinated alicorn, and as she began to taste it on the tip of her tongue she was inspired to continue harder than ever before. Pushing forward, she let the huge shaft enter into her throat, drilling a few inches down before she was forced to come up for air.
"Unacceptable." Chrysalis ruled. The flow of green energy cradling Celestia's mane grew hard, and gripped it, holding her head in place as she began to thrust. Chrysalis's rock hard shaft forced itself into Celestia's mouth, pushing her tongue to the bottom of her jaw as its well lubricated length slipped over it. Celestia's only regret was that with her tongue pinned down, she couldn't service her queen more efficiently.
Chrysalis cared not, and continued thrusting, holding Celestia's head in place and roughly rutting it, pushing her corrupt cock down the subservient princess' neck as far as she could take it, every thrust getting a few centimetres deeper.
Chrysalis' strength was growing, but Celestia's tight mouth and thin throat was draining her resistance faster. It had been so very long since one of her hive-children had managed such a feat - she would have to keep this one close.
Celestia gagged and desperately tried to breathe. The rod down her neck made both impossible. Her eyes closed as she tried to preserve her energy, so that her Queen might take more, and continued to kneel there allowing herself to be used.
Soon, Celestia brought the power-hungry queen to the edge. It had been so long for her, she wanted the release almost as much as the power itself. Shoving herself in as hard as she could, Chrysalis came, shooting her burning hot load into the ex-ruler of the kingdom's stomach. Celestia greedily gulped it down, moaning happily as she felt herself become filled.
Load after load followed, the seed of a changeling continually flooding her stomach, and overwhelming her senses. The vastness of Chrysalis' orgasm was so great that it bled through the hivemind, bringing the city to its knees. For Celestia, who was already on her knees, it simply brought her already weakened body to orgasm.
Her mind blacked out, and her body took over. As Chrysalis pulled out, Celestia found her tongue once more able to lick and lap at the receding shaft, getting one final thrill of pleasure as the dark semen dribbled out of her mouth and covered her chin.
"You make a good pet, Celestia," Chrysalis praised, using a forehoof to ruffle Celestia's once-perfect mane. "Now, however, I have a task for you."
"Anything, my queen."
"Your students are being held downstairs in pods not dissimilar from your own. They too have been chosen for conversion. Why don't you go and handle training for the one you call Twilight Sparkle?"
"Yes, my queen."
Optional 'Good End' Section
Celestia walked into the breeding chamber, her black eyes darting around the room, staring at all of the pods that stood ready to subvert her old people into her new people. She smiled - she may no longer be a princess, but servitude felt so much better than ruling.
She walked over to one of the pods, and found a dormant looking Twilight Sparkle inside. "Hello, my student." she spoke, pushing her voice through the hivemind into the seed of a connection that lay inside Twilight's mind.
"C... Celestia?" Twilight gasped, opening her eyes. "Celestia, what happened to you?!"
"I have become more than just a pony now, Twilight. You too shall join us in the eternal pleasures of servitude, and you shall rejoice."
"No, I... no!"
"Yes, Twilight. First you, and then your friends. All of you have been chosen," Celestia explained, moving her hoof between pods. "First you, then Applejack, then Rarity, then Fluttershy, then Pinkie Pie, and finally, Ra- Where is Rainbow Dash?"
The explosion rocked the building as Rainbow Dash's Sonic Rainboom struck, shattering the ancient rocks and collapsing one of the walls. A chunk of the ceiling fell onto Celestia, shattering her horn and breaking the connection to the hive, and she fell to the ground, helpless and unable to move. Celestia knew from the last time she'd checked the connection that the closest hive-sister was several minutes away, and though they would surely be sent to investigate, it was probably too late for her.
Rainbow Dash wasted no time in releasing the others, and handed out the 5 remaining Elements of Harmony. Twilight looked down at the monstrous bastardisation of her teacher, and wept a single tear. "Celestia, I am so sorry."
"Don't be," Celestia spat, "You shall join us. Our mind will live on in the hive forever, you cannot kill a changeling."
Twilight looked down. When she looked back up, her eyes shone bright white, and every hair on her body crackled with energy. She, and her 5 friends, rose into the air, and floated through the broken wall, leaving Celestia alone.
The last thing she remembered was the shattered walls of her former home rumbling, before the Rainbow of Light bathed the kingdom, and Celestia sobbed for everything she was losing as her black, broken body began to bleach a brilliant white, and her horn regrew. The castle began to shake as clumps of rock were pulled back into their original positions, and Celestia, quite simply, forgot. She would wake up soon - she had a wedding to attend.