The Evil Within

Rainbow Dash opened her eyes to see nothing but a cyan mass covering her entire vision. She was having a hard time breathing. She realized that she was being smothered by something very large, wet, soft, and heavy. The sounds of gastrointestinal movement made her uneasy, and she just wanted to get out of this situation.

*ERGH! GUGH! HUFF*

Rainbow Dash wiggled with as much strength as she could muster. Surprisingly, she was able to wiggle her way under the mass until her head popped out from underneath, gasping for air.

However, what she saw after her head was free was a huge, never-ending, black haze that seemed to encompass her surroundings.

*W-where am I....? HERGH! UGH!*

She squirmed with all of her might and finally freed her whole body.

*Hey! I'm still skinny! Thank Celestia! It must've all been a dream....I think? What the hay happened to Equestria!?!...Ugh...being trapped under whatever that was really drained me....In fact.....I have never felt so weak.....*

*WELL, WELL, WELL....CRUSHING YOU DIDN'T WORK EITHER....AND, NOW YOU ARE SELF AWARE....HOW ANNOYING...*, said an androgynous voice.

Rainbow Dash stood up on her hind legs and put her forehooves on guard.

*Who's there?! What have you done to Equestria?! I knew you, whatever you are, were up to no good!!! Show yourself!!!*

To Dash's surprise, the voice did reveal it's physical self. A silhouetted figure with glowing, red eyes encircled by green sclera crept closer to her from the darkness. Streams of purple smoke radiated from it's eyes. This scene was all too familiar.

*KING SOMBRA!! I thought we creamed you in the Crystal Empire!! Come over here, so I can kick your flank like my friends and I did before!!*

*KING SOMBRA??....BAHAHAAHAAHA!! I AM NOT SOME FOOL WHO TRIED TO CONTROL A POWER FAR TOO GLORIOUS FOR ANY MORTAL!!....*

It crept closer, only to finally reveal....Rainbow Dash, herself!!

*W-w-whaaa????....Y-you look just like me!*

It smiled. *I HAVE NOT EVEN BEGUN MY REIGN OVER YOUR PITIFUL KINGDOM...AND...NONE OF...* - It waved its hoof to emphasize the surrounding atmosphere - *THIS...IS EQUESTRIA...I GUESS...SINCE IT IS ALREADY TOO LATE FOR YOU TO STOP ME...I COULD EXPLAIN...IF YOU WANT ME TO...*

As weak, afraid, and confused as she felt, she realized that her only option may be to get some answers.

*....Alright....Who...or what are you?...And, what is this place?*

*HMHMHM...* The other Rainbow Dash floated up and spread its forehooves out for further emphasis. *I AM THE BLACK SATIATOR! DARK MAGIC INCARNATE!...OF COURSE...I AM ONLY ONE BREED OF DARK MAGIC ELEMENTALS...BUT, THAT DOESN'T MATTER....I OWN YOU. NEARLY EVERY PART OF RAINBOW DASH IS MINE!!....AND, THIS IS ALL THAT YOUR COLLECTIVE BEING IS RIGHT NOW!! ISN'T IT WONDERFUL? AND, I HAVE YOU TO THANK! YOU HELPED ME GROW AND BECOME STRONGER!! YOUR DESIRES AND CARNAL NEEDS DETERIORATED YOUR WILL UNTIL YOU WERE VULNERABLE ENOUGH FOR MY STRENGTH TO TAKE OVER!!....RAINBOW DASH IS NOW ESSENTIALLY AN EVIL MONSTER OF UNENDING HUNGER FOR PONY FLESH!!!*

Rainbow Dash couldn't say a word. Tears were forming in her eyes as she observed the hollow space of black haze that she sat in. This was now her inner self. She could feel it now. The parasite was right. She didn't want to believe that this was happening. Rainbow Dash's moment of weakness had led her to believe that she could just have some fun with her fetish. She didn't think that gaining the ability to indulge in it would lead up to losing herself in the process. And, now she was responsible for dooming all of Equestria to suffer whatever this creature had in store for it.

Then, Rainbow Dash blinked the tears away in realization.

*Wait a minute....*

She smirked and stood up triumphantly as she pointed her hoof at the thing that looked like her.

*HA! You thought that you could fool me! You say that you've got complete control over me, when that isn't even true! Look who's standing here, still awesome and talking you down! I'm still here! And, I can still win!*

The Black Satiator's face became neutral. *AH. YES...I DID SAY THAT NEARLY EVERY PART OF YOU IS MINE.....YOU, RAINBOW SUPER-EGO, ARE STILL VERY MUCH YOUR ORIGINAL SELF.....BUT, IT MATTERS NOT IF RAINBOW EGO AND RAINBOW ID HAVE ALREADY SUCCUMBED TO MY POWER.....*

Black Satiator scowled. *I WOULD HAVE BEEN COMPLETE BY NOW IF IT WEREN'T FOR THAT WRETCHED, MAGICAL POWER THAT KEEPS YOU SAFE....I WAS SURE THAT IF RAINBOW ID GREW LARGE ENOUGH, IT WOULD KILL YOU...*

*What the hay are you going on about?!? I'm Rainbow Dash, the fastest pony in all of Equestria! I'm the defender of the Element of Loyalty, for crying out loud!! Not some 'super-ego' or whatever you said!*

*THE MAGIC WITHIN YOU WAS POWERFUL ENOUGH TO MAKE YOU SELF AWARE....AND YET NOT GIVE YOU UNDERSTANDING OF YOUR CURRENT IDENTITY?....I WILL ELABORATE....YOU SEE....YOU, RAINBOW SUPER-EGO - YOUR MASTER CONSCIENCE, ARE MERELY ONE THIRD OF YOUR PSYCHE, OR COLLECTIVE CONSCIENCE IN OTHER WORDS. THE THIRD THAT REPRESENTS YOUR TRUE, SPIRITUAL SELF THAT HOLDS YOUR ENTIRE PERSONALITY'S BALANCE.

WHEN I CAME INTO YOUR BODY, IT WAS AUTOMATICALLY AUGMENTED WITH MY MAGIC. IT IS MY MOST PRIMITIVE STAGE. HOWEVER, YOUR COLLECTIVE CONSCIENCE TAKES TIME AND ENERGY FOR ME TO MANIPULATE COMPLETELY. AND, DOING SO COMPLETES MY TRANSFORMATION INTO A FULLY REALIZED DARK PONY. MUCH LIKE THAT MISERABLE KING SOMBRA. EXCEPT I WILL HAVE COMPLETE CONTROL.

THAT DESPICABLE MAGIC THAT ENVELOPED YOUR SPIRITUAL SELF IS PREVENTING ME FROM COMPLETING THE FINAL STEP......DESTROYING THE SUPER-EGO ENTIRELY!!*

Rainbow began to sweat and shiver. The gravity of the situation was only becoming more frightening. She is going to die and leave this thing to turn her body into a monster. At least, more of one than it already was.

*GULP.....T-then....w-w-what happened to the other two thirds of my psyche?....*

Black Satiator put a hoof on its chest. *NATURALLY, RAINBOW EGO - CONTROLLER OF ALL OF YOUR PERCEPTUAL, COGNITIVE, AND EXECUTIVE FUNCTIONS - WAS THE PERFECT, TEMPORARY VESSEL FOR MY NEARLY COMPLETED FORM. THE MORSELS THAT YOU HAD RECENTLY GIVEN RAINBOW ID, WHO IS RIGHT BEHIND YOU, GAVE ME ENOUGH POWER TO FINALLY DO THIS.*

*R-right....behind me?*

Rainbow Dash slowly turned around. Her eyes widened as she looked at the blob of cyan that was nearly the size of Fluttershy's cottage. Her titanic stomach gurgled and sloshed as she wiggled her small legs in circular motions, as if attempting to rub herself. She had more chins than Rainbow Dash had thought possible for a pony to have. Her cheeks sagged and made her squint. And, the ass was so fat, that it had its own folds. She still had a rainbow mane and tail. But, they both looked like small tufts in comparison to the rest of her body.

*ERGH....GURGLE....MMMASSSTERRR.....I THINK I HAVE A TUMMY AAACHE....UUUURRRP...GET OVER HERE AND-HUFF-MAKE ME FEEL BETTER! RIGHT NOW!!!*

The Black Satiator's face softened as it floated over to the morbidly obese pile and began kneading her with it's hooves. The blob began moaning, burping, and gurgling in satisfaction.

*THERE, THERE, MY JIGGLY MASS OF GREED.*

Rainbow Dash's feelings of confusion and disgust were beginning to become too overwhelming to bear. And, she normally hated being lectured. But, she needed to continue learning about her situation.

*R-R-Rainbow....Id?*

Without looking back, the Black Satiator answered, *INDEED. SHE WASN'T ALWAYS LIKE THIS. HOWEVER - DUE TO THIS PART OF YOURSELF HAVING NO ROLE OTHER THAN SEEKING BODILY NEEDS, WANTS, AND DESIRES - SHE IS EASILY TAINTED BY MY POWER. SHE IS EVERYTHING THAT YOU EVER WANTED, YOU KNOW? THE ID OF ONE'S PSYCHE NOT ONLY REMINDS ONE OF THE NEEDS AND WANTS THAT ARE ESSENTIAL FOR COMFORTABLE LIVING. IT CAN CAUSE SOME OF YOUR WILDEST DREAMS AND DESIRES TO COME TO LIGHT THROUGH IT'S OVERLY SIMPLISTIC DRIVES.

HEHEHEHEHE.....*

It turned and grinned fiendishly, showing it's demonic fangs.

*THIS QUIVERING MASS OF HUNGER IS WHERE ALL OF THE LIFE FORCE OF YOUR FELLOW PONIES ENDS UP. AND, IN TURN, YOUR FORBIDDEN DESIRES THAT IT HOLDS FURTHER TAKE HOLD OF WHO YOU ONCE WERE. THAT IS, UNTIL EVERY REMNANT OF YOUR FORMER SELF IS GONE.*

The Black Satiator gave Rainbow Super-Ego a nasty scowl, then stared into the void with a despondent look.

*ALAS, THE VOID CAN GROW AS MUCH AS I WILL IT. RAINBOW ID WILL DRIVE OUR NEEDS AND WANTS FOR AS LONG AS YOU STILL EXIST. I WON'T NEED HER OR YOUR EGO ONCE I GET RID OF YOU. ALL I CAN DO IS FEED, EXPAND, AND CONTINUE TO BE A LIVING CARICATURE OF YOUR FETISH. THE AMOUNT OF DARK MAGIC I CAN CHANNEL THROUGH YOUR PHYSICAL FORM IS FAIRLY LIMITED COMPARED TO MY FULL POWER. OH WELL. BIGGER IS ALWAYS BETTER AFTER ALL. MY FULL FORM AND POWER WILL BE THAT MUCH GREATER BY THE TIME I FINISH YOU. AS LONG AS I KEEP FEEDING YOUR FAT ASS....*

Rainbow Id then belched loudly, blowing out a billowing cloud of blackness that seemed to make the void darker.

*YEESSS!! YEEEESSS!!! THE BLACK HAZE OF YOUR DISGUSTING FANTASIES CLOUD MORE AND MORE OF THIS PLACE!! BECOMING THE INCREASINGLY MAGNIFICENT INCARNATION OF MY BEING!!! BAHAHAHAHAHAHAAAA!!

Rainbow Dash's face continued to crack with tears and hopelessness.

*Oh my Celestia.....I really bucked up this time....*

*AAAHH...ON THE CONTRARY, MY LITTLE PONY. YOU NO LONGER HAVE TO WORRY ABOUT ANYTHING OTHER THAN INDULGING IN WHAT YOU'VE DREAMED OF. SOMETHING THAT I ASSURE ISN'T NORMALLY THIS EASY TO ATTAIN. ISN'T IT SOMETHING THAT YOU SHOULD BE GRATEFUL FOR?*

*sigh...No...No it's not...Not if it means that my friends and all of Equestria will suffer for my selfish fetish...They all come first before myself...Well....not anymore....sniff....I'm so sorry, everypony...*

The Black Satiator grimaced as black bars came out around where Rainbow Super-Ego sat. They surrounded her and came together to create a cage that now imprisoned her. It rose up from the ground on a tall, black pedestal that was an extension of the void itself.

*ERGH...THE MAGIC WITHIN YOU IS EVEN MORE REVOLTING THAN I THOUGHT. YOU JUST SIT TIGHT WHILE I FIGURE OUT A WAY TO END YOUR MISERY.*

Two, titanic, ovular shapes began to seemingly form in the void behind the Black Satiator. They began to become paler and more transparent as they finished forming. The evil counterpart of Rainbow Dash turned and grinned intently at the window-like shapes. Rainbiow Id wobbled in excitement, making the two windows flicker, as it's stomach growled ferociously.

*OOO! OOO! WE'RE WAKING UP!! WE'RE WAKING UP!! TIME FOR MORE GOOD STUFF!!*

*I GUESS THAT PART CAN WAIT, FOR NOW. IT IS TIME FOR US TO DRIVE YOU A LITTLE MORE DIRECTLY AND SATISFY MORE OF ID'S HUNGER.*

The Black Satiator laid on top of Rainbow Id's back. It's lower body conjoined with Id, making it seem like the obese Rainbow Dash had a growth on her back that looked like her head. Rainbow Id's tiny legs and wings then stretched impossibly until they connected with the void, allowing them to rise up until they were level with the ovular windows.

*Ugh...That's totally disgusting. Hopefully, somepony can stop this freak....Who am I kidding. I'm the freak here. I'm not even sure if I can be stopped. Fluttershy is gone. Pinkie Pie is definitely being manipulated. And, even if somepony finds a way...I don't know what's gonna happen to me now. I don't deserve to get out of this unpunished anyway...Maybe...I should just die...*

The windows brightened steadily.

Author's Note

Sorry for the enormous wait. I have gone through a bunch rethinking of myself for a long while now. A lot of self discovery. A lot of self doubt. My laptop's hard-drive died, and I had no computer for awhile. I got out of touch with the madness that drove me to make these stories. And, I began to feel dirty when I would try to get back into it. For awhile, I wasn't sure if I would ever come back to this. But, eh, I really do want to finish my stories. And, make more as well. I need to stop feeling ashamed for writing this filth or doing anything productive that serves my interests alone. I enjoy it all too much to just forget about it. And, I know that this story in particular got a little popular. It's part of why I was reluctant to go back. A little too much attention that I didn't expect to get from this kind of story. But, I might as well embrace the fact that a bunch of people enjoyed this shit.

This chapter in particular was going to be much longer. But, I decided to leave what happens after this part for a longer chapter that focuses on the next juicy bit. One reason being that this chapter is more story exposition than anything. No really juicy, fetishy stuff happens here. Which, is really what you're all here for. It stands out too much from the real meat of the story. heh.

Second reason being that despite having an idea of what I wanted to happen to Rainbow and Pinkie next, I haven't thought it out entirely. I did have some stuff. But, I decided to save it for next chapter. I might even start the ideas from scratch. I'm not exactly in the same mindset as I was when I wrote a lot of this. So, I've got to get back into the groove.

Final reason being.....I'm not sure how much people will like this villain idea. It's quite convoluted, I must admit. And, it adds maybe too much serious conflict to a fetish story. Heavy on gimmicky dialogue too. But, dialogue is what I'm more comfortable writing, and I get overly ambitious pretty easily. I was just having too much fun with this concept. So, I left this as it's own chapter to see how you will all react to it. Good? Or nah? Let me know if this was bad to read or not.