~~~~~Ponyville, The Golden Oaks Library~~~~~

A small burst of air was all the sound that preceded the arrival of the sleek bodied Twilight Sparkle. The library was dimly lit and silent, and smelled powerfully of parchment and ink. It was an incredibly comforting scent to Twilight, who sagged against a familiar bookshelf and closed her eyes. Home. her mind whispered softly. For all that she might now live in a veritable palace, for all of the wealth and prosperity she now had - this would always be her home.

She ran a hoof along familiar shelves, still stacked almost precisely as she'd left them. The lamps were all set to low, likely because the new Librarian was out to lunch. I'd never left the place of course. She thought wryly, gently climbing up into her favorite chair and curling up in it. I never should have left. She thought, moodily. I never should have let Celestia talk me in to taking on that stupid town.

She wanted to come back here, to take her Library back. To put Spike back to work on something that didn't involve city planning. She wanted to do some research that didn't involve these Celestia-damned shadow powers. Calm down, Twilight. If you keep this up you're going to freak out again. And given what she could do now? There was no telling how that might end.

She blinked, and turned her head for a moment and perked up her ears. Wait a minute... what's that sound? she thought, hopping off the chair. It sounded like pages turning, and somepony speaking softly. How did I not hear that before? Twilight trotted up the stairs, following her ears. That sounds like... heh, yep. She smiled a little, peeking through the crack in the doorway.

Sure enough, it was Dash, wrapped up in a familiar looking patchwork blanket and leafing through a Daring Do novel. What she was doing in Twilight's old bedroom, she didn't know. By the moon... I miss this. she wanted, so badly to just... go in there and geek out over the Daring Do novel. Except even Dash hadn't treated her exactly the same since that night all those months ago. She hadn't stopped being her friend, but she was... nervous around her. Of course, there were ways to fix that...

Twilight vanished from the shadow of the door, reappearing downstairs in the dark and silent kitchen. Twilight's breathing was coming in slow, deep bursts. No Twilight. No. You are. Not. Going. To. Do. That. She smacked her head lightly against the wall, trying not to make too much noise.

Twilight felt her heart breaking over and over in her chest. It hurt so much. She felt hot tears running down her face, and slowly dripping towards the floor. She took in a set of deep, shuddering breaths. In and out. Focus, Twilight. Focus. She did the breathing exercises that Celestia had taught her. Deep in, slow out. Deep in, slow out.

They were going so well, that Twilight didn't even notice the cyan pegasus slip into the kitchen. Didn't even notice that she hadn't stopped crying. She didn't notice a thing, until Rainbow Dash gently wrapped hooves and wings around her - startling her out of the breathing trance.

Dash hugged her tight - apparently refusing to let her go. And suddenly, Twilight didn't want her to let go. "It's okay, Twi. It's gonna be okay." Dash whispered, over and over again. Twilight knew she was still crying, and she couldn't stop. So she stopped trying, and simply let the tears roll out.

There, in her small kitchen, she turned and collapsed into Rainbow Dash's hooves. The pegasus didn't even complain - she just held Twilight close and let her cry her eyes out. It does not have to hurt, Twilight. that dark voice whispered in her mind as she clung to Dash. She will do anything for you, Twilight. You would not even have to force it upon her. Twilight tried to will the thought away, to force it down into her mind and stomp on it with all of her might. She was not going to curse Dash this way.

Dash gently lifted Twilight's head from her chest, holding her chin in her hooves. "Talk to me, Twi. You know you can trust me." She smiled a little, and Twi found herself smiling back. "Loyalty, remember?" she gently tapped her own chest, then tapped Twilight's right above her heart. "You can tell me anything."

Twilight felt something crack inside of her. Dash. I can tell Dash. It was like joy, wonder, love and happiness all exploding inside of Twilight's heart at once. Dash won't ever leave me. Dash won't let them lock me up. I don't have to hide this! Twilight felt a smile like she hadn't had in month’s spring to her face, even though the endless rivulets of tears. Blessed Celestia, thank you for Rainbow Dash.

Dash nodded a little, and sat down on the kitchen floor, scooting Twilight so that they could sit side by side, wrapped up in each other’s hooves. Twilight took a deep, shuddering breath and exhaled. "D-Dash, I think I'm t-turning into some kind of m-monster." She whispered softly, Dash nodding a little and saying nothing for now. Twilight needed to talk. She could comfort her later. "I k-keep having dreams about, taking my power and..."

Twilight gulped softly, taking deep and steady breaths. "Filling ponies with it. Just filling them up with the shadows until they become twisted like me." Twilight squinted her eyes together, trying to will the tears away. "I pull out all the darkness in them, Dash - and I make them like it. I make them want to be my little playthings, for me to toy with and change and make into my own little shadow creatures."

Dash was not even showing a whit of fear. She was, if anything - sticking even closer to Twilight. She was stroking Twilight's arms up and down slowly, and wiping away the tears whenever they got to be too much. Twilight felt her will to talk beginning to break down, so she hurried out her words - trying to say everything she needed to before her willpower dried up. "And I enjoy it Dash." She whispered softly. "I can't stop thinking about it. Every time I see a pretty mare or a handsome stallion, I wonder what sort of dark, sexy secret they might be hiding... and I want to turn them into my toy for a while. I want them to worship me like a goddess..."

Dash suddenly gripped her hooves firmly, hugging Twilight tightly. Twilight couldn't speak any longer anyway, so she just huddled up against Dash as though all the warmth had been sucked out of the room. I should go to Celestia. she thought, her mind suddenly logical and calm. I know there's cells in the Palace where I wouldn't be able to escape from. It was logical. She was a danger to everypony around her. She had thought she could learn to control the power, but slowly and surely she was becoming some kind of demon.

"Twilight." Dash's quiet voice suddenly cut in on her runaway thought train, and Twilight blinked at her in surprise. Dash smiled a little at her. "Do you think it might help if you just... got it out of your system? Like maybe it builds up inside you, and you've got to actually use all that power or it'll just keep building up till you can't take it anymore?"

Twilight blinked at that. It would actually make a certain amount of sense - Shadow Dancer had warned her that the Shadow could get out of control if it wasn't used. That was why the Shadowbolts so often used their powers during training, to drain away the excess Shadow energy. Do I truly have no choice? she hung her head softly, sighing. "You're probably right, Dash. But... How could I do... " she gestured at herself in exasperation. "This to anypony?!"

Dash arched an eyebrow. "Well, I didn't wanna say nothing, Twi - but you are pretty freaking hot now." Twilight stared at Dash blankly, and Dash grinned and waggled her eyebrows. "I ain't kiddin' Twi. I mean, you do realize you look like Fleur De Lis, right?" Once again, Twilight looked blankly at Dash - who sighed gustily. "Famous model? Yanno, Ten time winner of the Ms. Equestria Pageant? Married to Fancy Pants? Geeze, Twi - Even I've heard of Fleur de Lis."

Twilight shook her head slightly, and Dash snorted. "Well look. I'm not going to say all of what you just described sounds terribly..." She flicked her hoof. "Um... comfortable. But look, Twi - If you gotta get it outta your system, then you gotta do it." She reached over and squeezed both of Twilight's hooves.

Twilight looked up, biting her lower lip once before speaking. "Even if that means I'd do it to you, Dash?" she said quietly, feeling a tightness somewhere just below her chest. She could feel the shadows within her suddenly expanding, taking over her body from within. "You have..." Twilight whispered, slowly leaning into Dash as wisps of shadow slowly began to melt off of her forelegs. "No idea what I'd do to you..." Twilight could feel the shadow so powerfully inside of her - She could feel it slowly taking hold of her, becoming one with her as it had on that night so many moons ago. She could feel her mane becoming the shadows, and her mind slowly switching over... suddenly, all of this seemed like a very lovely idea indeed.

Dash's jaw slowly dropped and she nearly backed away - and found that she couldn't - she couldn't move at all from the spot. Something was rooting her to the ground. Twilight gently drew a soft hoof across Dash's cheek. "Dash.." She whispered again, desperation in her voice. "If you tell me to leave, I will. If you tell me to let you go, I will." She almost wanted her to. She wanted Dash to yell, to tell her to get a hold of herself - to leave before she gave in to this madness...

Dash's eyes widened a fraction - Twilight's mane had begun to melt into the shadows of the darkened kitchen. So did her tail - she looked like she was half made of Shadows at this point, and Dash began to wonder if she hadn't gotten a little over her head here. Then she saw the look of desperation on Twilight's face, and she steeled her spine. She spoke gently, calmly. "I ain't gonna leave you like this, Twilight. We stick together - no matter what." Maybe she was in over her head. It didn't matter. Twilight needed her, and that was that.

Twilight's lips curled up into a slow smile. "Thank you Dash." She whispered, oh so softly - So darkly that it sent a chill of fear up Dash's spine. Dash could feel the shadows touching her...spreading up her body from her hooves and slowly encasing her in themselves. "Don't worry." Twilight spoke much more calmly now, much more in control. "I'm not going to hurt you, Rainbow Dash. Not you." The shadows had begun to climb up Dash's legs, slowly overtaking her body bit by bit.

Dash should've been scared... but she wasn't. There was something soothing, something warm about those shadows. Her eyes were locked on Twilight's, and for some reason fear didn't seem to enter into it. Twilight had pulled Dash into her long limbs and slowly stroked her rainbow mane as the Shadows began to engulf them both. Huh. I wonder why I'm not scared? thought Dash, somewhat absently as she watched the steady coat of darkness blanket them both. I think I'm in trouble. She thought with a touch more anxiety, the shadows now reaching her wings.

A moment later, she looked up to see a dark coated Thestral watching them both from the kitchen table - a hint of mischief and darkness written in her shining golden eyes. I wonder who she is? thought Rainbow Dash absently, and then as the Shadow began to reach her neck - She found she didn't really have any thoughts at all. Just warmth, comfort and a feeling of contentment.

Twilight turned dragonlike eyes upon the Thestral, narrowed slightly. "I wondered if you'd followed me, Dancer." Twilight's voice came out all too smooth, like silk whispering over steel. "If you intend to teach me anything, you had best make it quick. I am operating on instinct here, and if Dash ends up hurt, you will be the one that pays the price." Twilight's voice brooked no argument - and more importantly, struck a little fear into the heart of Shadow Dancer - who realized that Twilight was being one hundred percent serious.

Dancer spoke quickly, her voice pitched low and softly. "She is in your embrace now, my queen. While you hold her within your shadow, she will not resist anything you choose to do with her." There was a sparkle in the thestral's eye, and she smirked. "If you wish to keep it simple, you should simply use this opportunity to imbue her with the shadow."

Twilight arched an eyebrow, a thick tendril of shadow slowly lifting up to brush back a stray lock of Twilight's shadowy mane. "Quit stalling, Dancer. Get to the point." Her voice hissed now. "How do I do that?" she spoke still calmly - for some reason, she simply could not get angry like this - at least, not very angry.

Dancer chuckled softly. "How do you think, M'lady? Her body is open to you." She sneered at Twilight, her eyes heated. "Take her. Useher. Fill her with your shadow. Pour your power down her throat, into her slit, coat her body in it!" The thestral shivered in atavistic response. "You must conquer her, my queen. Make her yours. if you wish to sate the power within you now."

Twilight half glared at Shadow Dancer. "You and I are going to have a talk, when I am done here. Leave us." She hissed out, and Shadow Dancer did just that - vanishing in a puff of power. Twilight turned her eyes onto the seemingly sleeping Rainbow Dash, her eyes soft. Dash. Most loyal friend.

Twilight pressed her lips to Dash's, and the pegasus responded - gently returning the soft, chaste kiss. I hope you can forgive me.. her mind whispered as she pressed the kiss in harder, delving her tongue past Dash's lips - and Dash unconsciously responded back. Twilight could feel her power flowing fully through her body now, the Shadow in full control. Twilight's worries and cares began to melt away into the darkness, and she felt a thrill of excitement as she poured that power through her tongue. Yes...such a beautiful pegasus. Her mind whispered, as she molded the shadow engulfing Dash's body tightly around her.

The shadows slowly pulled tighter around Dash until they formed a slick looking bodysuit of energy. Twilight smirked softly and gently pulled Dash's body into her lap, hugging her close to her. So strong, so muscular. So helpless. she trilled in her mind, Dash's eyes half open and hazy with the shadow power. Yes... Let's wake you up little one. Twilight thought whimsically, watching Dash's eyes slowly begin to open to a more normal look. Mmm, you like that feeling don't you? You can already feel the shadow growing a little inside of your body... Her mind seemed to be doing the speaking for her, and somehow Dash looked like she could hear it. Dash's head nodded a little, a burning black flame barely visible in her pupils.

Twilight's mind willed Dash's shadow encased limbs to wrap around her neck, leaning in to press that deep tongue laden kiss upon her again. There she held Dash for several long minutes, their tongues erotically dancing with one another as Twilight poured more and more of the shadow into Dash's body - It was like a massive pressure valve had finally been released, tension was draining slowly out of Twilight's body with every ounce of power she used.

The bodysuit of shadows was changing too, seeping into Dash's coat and then her skin, as though it was being absorbed into her body. Dash's hips began to buck a little bit, back and forth - and Twilight noticed that her cute pegasus was actually getting off from this. The thought made her smile lazily. She'll be paying for that pleasure later... her mind cooed, and she giggled at the thought. Dash would be so much fun to play with. She'd make a fine Shadowbolt too, come to think of it.

The power poured in around her - embracing and enveloping Rainbow Dash in arms made of shadow. Twilight had her lips pressed to Dash's as the power cocooned around them, enjoying the sensual kiss that seemed dragged from some subconscious part of Rainbow Dash's brain. Yet that kiss was becoming more and more eager, Dash herself more and more aware. She's becoming touched... the voice of the shadows spoke softly to her. Soon, she too shall know the glories of the shadow. And then, the real fun can begin...

Twilight's eyes widened, her mind flooded with the images that conjured up - Dash's lips tearing away from her and gasping out a desperate moan of pleasure as the shadow power began to fill her body up to the very brim. Twilight could feel her now, like she could 'feel' Shadow Dancer and Silent Moon - Like she could feel the Shadowbolts. She is becoming like me. her mind whispered.

Twilight felt as though she stood on the edge of a precipice. Looking down into it, she knew not what lay in the dark. Yet she knew a few more moments, and she would step off into that dark - Willingly, Eagerly. She would become part of the darkness, and inescapably part of it. For a moment, Twilight was terrified.

And then, she bundled up her power and thrust it into Rainbow Dash like a male's member, right into her marehood. Twilight's mental self lept into the darkness, cackling with glee.

Dash's eyes shot open wide and scream of primal pleasure tore from her lips. Her wings flared open stiffly and remained that way as Twilight filled her best friend with all the shadow power she could hold, and more. Dash's eyes slowly shifted in color from white, to grey to pitch black. Her open mouth went from screaming to moaning wickedly. Her body writhed in interesting, sensual ways - most of them eager to touch Twilight's shadowy form more, to hold her closer to her.

Then the power seemed to snap, and Dash's body collapsed against Twilight's, panting as though she had just flown a thousand miles. Twilight wrapped her shadowy limbs about the pegasus with a slow smile, gently nibbling on Dash's ear. The cyan colored mare moaned sweetly for Twilight, who giggled in pleasure. "Welcome to the family, Dashie." She sing-songed aloud, even though the poor mare could not hear a word Twilight was saying.

~~~~~~

Several hours later, Twilight sat with Dash's head laid in her lap - they were both on Twilight's old bed in the Library. Twilight had decided to wait until Dash woke up before doing anything else - as much as the thought of ravishing the helpless body of her friend had appealed to her shadow-tainted mind, she'd rather she was awake to enjoy the experience.

Twilight paused for a moment - and with only seemingly a thought, Shadow Dancer appeared before her, kneeling next to the bed. "You called, My queen?" She had her hoof pressed to her chest, like some warrior of old. Twilight smiled a little at the thought, and focused her gaze on her teacher of shadows.

Twilight's voice spoke gently, quickly. "I wish for you to assemble the learning materiel's that I might make more elegant use of these powers. Prepare a room for Dash, something suitable for a guest of the household. And task one of the Shadowbolts to ensure she is not missed in Ponyville."

Twilight paused and gave Shadow Dancer an amused smile. "And Dancer? The next time you wish to make an objective point about the Shadow power I now possess, do not manipulate it into taking me over like that. If you do, the next creature I shall break to my will shall be you." Her eyes burned with power for a moment. "And do not think for one moment that I am not fully capable of doing so." Shadow Dancer broke out into a cold sweat, but bowed deeply and vanished a moment later - obviously eager to ensure she did not push her Queen's patience.

Twilight sighed gently, her hoof continuing to stroke Rainbow Dash's mane gently. "So difficult to find trustworthy help these days. I'm certain you will help with that, won’t you pet?" She smirked a little, as Dash began to stir from her power-induced slumber. Remember, Twilight. This is but the first step. You have only sown the seeds of her corruption - but to make them grow, you will need to do far, far more to her... The shadow whispered into her ear, eager and soft.

Dash's eyes cracked open and she blinked a little. "Whoa. Did I um... Pass out?" she asked, in a soft, awe stricken voice. "Cuz I think you made me pass out by kissing me. Which might be a little embarrassing." Dash's voice was a little sheepish - and also a little excited.

Twilight giggled softly. "Mmm, you did. Don't worry though, Dash - you were a very big help to me already." Twilight unquestionably felt better. Much more alive, much less stressed. Much more excited about my future. she thought smugly, as Dash blushed a bright shade of red and tapped her hooves together nervously. "Of course, I'm still going to need some help.."

Dash shook her head dazedly. "But, well... Sure Twi, I'd love to keep helping you." Dash's voice came out gently, almost breathlessly. "But how can I do that if I'm living here in Ponyville? Don't you have a busy job in that new little city of yours?" Dash asked in a quiet sort of way - a combination of fear and desire floating behind her eyes..

Twilight gave her a slightly toothy smile. "You're going to come stay with me for a little while Dash. You and I will have so much to talk about... and so much fun to have." Twilight's hooves seized Dash's body, and pulled it up tight to her own - and a moment later they vanished from the bedroom with a gentle cackling laugh that seemed to echo throughout the library.

~~~~~~~

The trip this time only took Twilight an hour or two to make - her powers coming to her beck and call stronger than they had before. Before she knew it, she was carrying Rainbow Dash down through the dim and shadowed halls of her home. Dash was still confused, her body a mixed bag of emotions and physical sensations. Yet all of them seemed to be driving her to stay close to Twilight, and do whatever she might be told to do.

Sure enough, Shadow Dancer had been as efficient as always - Twilight slowly laying Rainbow Dash down upon a plush divan, and Dancer immediately on hoof with a glass of water for Twilight to sip from. There were sheaf's of paper with precise, detailed instructions upon them and a selection of... interesting implements that Dancer undoubtedly had pulled from her own collection of such things.

Dash stared around the dim room, filled with unknown objects and pieces of furniture, and redolent with the smell of sex, blood and something else she could not put her wingtip on. Twilight pulled the shadows from every corner of the room, and within moments they came to her call - Swallowing up the cyan pegasus whole, dousing her mind into a sea of warm pleasure and obedience.

Twilight plucked the first parchment sheet with a touch of violet magic and began to idly read it - fed sips of water by Dancer as the shadows began to warp and mold themselves around the muscular body of Rainbow Dash. Twilight smiled as she read the first few sentences. She did so miss experimentation on new forms of magic. It had always been one of her favorite games. "Let's start with the basics then, Dancer." she spoke gently, as her mane and tale continued to melt into the shadows surrounding her body - the corruptive power driving her mind even more so than her normal thoughts for now.

Shadow Dancer's eyes came up - smoldering with pride. Her queen was already coming along nicely. Captain Winterlight was going to be very pleased with these developments.