The Magic Touch

As far as jobs went, "human guinea pig" was probably not the most prestigious you'd ever held. Regardless, it was surprisingly comfortable.

Hoping for some adventure, you'd been among the first to answer the call to Equestria when the portals had opened. It was a brave new world, and you were bound and determined to experience it for yourself. For a good long while, you'd managed to take in the sights without really stopping to worry about money; you had a decent amount saved up, and it was actually pretty inexpensive living in Equestria. Still, eventually your funds had begun to dwindle. Equestria was eager to hire on human workers with special skill sets - they were fascinated by all things technological - but you didn't really have what they were looking for in that area. Still, there were other availabilities. In a small town near Canterlot named Ponyville, you'd managed to find one.

Twilight Sparkle was apparently pretty well-respected in the field of magic despite living in the middle of nowhere, and ever since she'd heard of the human immunity to magic she'd been fascinated for the chance to experiment with it. You were more than a little leery of letting some freaky horse-thing bathe you in what probably amounted to some kind of radiation, but the young mare's pleading and obvious enthusiasm for the task had eventually won you over.

"Think of it," Twilight had told you, more than once. "If we figure out the mechanism behind your peoples' magic resistance, we may be able to modify it. Remove a human's anti-magic, and suddenly incurable diseases can be treated with nothing more than a quick spell! Or vice versa! If we ever managed to reproduce the anti-magic effect in ponies, a quick jolt could serve as instant treatment for any NUMBER of magical ailments! Oh, the possibilities are almost limitless!"

You'd still had your doubts, but Twilight's warmth - not to mention surprisingly generous salary offer for what was really very little work - made a believer out of you. And so, for the past two weeks, you'd been visiting the Golden Oaks library every day to have any number of drugs, treatments, or spells thrown at you. At one point about a week in, it seemed your worst fears would be realized as you wound up having a strong allergic reaction to Twilight's latest test, and you nearly called the whole thing off then and there when you'd woken up in the hospital.

You hadn't needed to beat her up any, though - she'd obviously done that more than enough herself. Twilight had taken it upon herself to play nursemaid as you recovered, waiting on you hand and fo - her, hoof, and apologizing profusely all the while. Eventually finding yourself feeling sorry for the neurotic unicorn, the two of you had gotten to talking. You couldn't help but be charmed by the young pony's good nature and obvious passion for her work, and before long the two of you were laughing and chatting like old friends. When you had resumed your mutual work, the atmosphere between the two of you was decidedly more relaxed, and you began to saw another side to the pony beyond the stern researcher. Twilight Sparkle was smart, yes. But she was also funny, polite, friendly, and insanely cute. Working with her had transformed from a chore, to a genuine pleasure.


Even so, you hadn't really made much progress. It didn't get to you too much, though; Twilight was thorough, diligent, and above all, intelligent. If anyone could solve this riddle, it was her.

"MAGNETS!" Twilight suddenly shrieks. Turning to face you, her face lights up in an almost manic grin, as though waiting for you to congratulate her brilliance.

...

About a minute later, she clears her throat loudly, deflating somewhat.

"Ahem, so... I think I might be on to something. I had a hunch, so I've been re-analyzing your blood and cross-comparing it to mine. Your blood has trace elements of iron in it!"

This... is not news to you.

Twilight harumphs. "Well, pony blood DOESN'T have iron in it. Since the beginning of history, pony magic has had unusual interactions, both amplifying and dampening, with certain mineral formations. The Crystal Empire is a prime example; the entire city is basically built on simple harmonic resonance theory, and both the crystalline structures that the actual city is comprised of, not to mention the overall design of the actual city itself, all serve to - "

Twilight. English, please?

She blushes slightly. "Umm. Well. I think the iron in your blood has a natural magic-dampening effect. It's all... chaotic, jumbled up, like a big knot. If we address that, we might be able to remove your magic resistance!"

It sounds like a plan to you, but there's one small problem: humans NEED iron in their blood to live.

Twilight grins, obviously having anticipated this point. "That's why we use a special magnetic resonance array! You remember those, uh... MRE things you told me about?"

You're pretty sure she means MRI, but you prompt her to continue.

"Well, if we pass you through one of those, it should serve to forcibly re-align your harmonic fields via the process of polarization. Back that up with a magic-amplification potion and in theory, your body should no longer reject magical energy!" Her face splits into a wide grin, eyes sparkling with excitement, and she actually hops back and forth in place a couple of times. "Oh, this is so exciting! We could be on the verge of the achievement of a lifetime!"

---------------------

Getting an MRI machine to Ponyville wasn't easy to arrange, but Twilight was not about to be balked when she was in a mood like this. By the end of the week, Ponyville General Hospital had gotten their hooves on one of the latest pieces of human equipment, and Twilight had gotten her toy. She had practically thrown you into the machine, waiting impatiently as the device filled a use it was never intended for, and then rushing you back to the library the instant it had finished.

Twilight took the white-colored vial from its resting place on her laboratory bench, floating it towards you in glowing magical field. "Quickly, quickly! We don't know how long the magnetization effects will last, and we'll want all the time we can get to experiment!"

You smirk at Twilight's giddiness, but hurry up and pop the cork on the bottle nonetheless, downing the tasteless, lukewarm fluid in a single draw. The MRI thing is new, of course, but it isn't the first time Twilight has had you take this potion. Last time, it utterly failed to do anything at all. Reflecting on that, you sincerely hope that at least SOMETHING comes of this; Twilight can get awfully grumpy when an experiment fails, and she seems pretty excited about this one in particular.

Five minutes later, Twilight decides the potion has had enough time to take effect.

"Okay, are you ready?" At your nod, her brow furrows in determination. "Alright then... here goes!" Her horn lights up.

And then, very suddenly, you are hovering in midair in the center of the room.

For a moment, neither of you speak - indeed, you hardly dare to breathe. But as the seconds tick by and Twilight's 'grip' on you continues effortlessly, she leaps into the air with a whoop.

"It works! It works it works it works it works! YES!" With a grin fit to split her face, she lowers you gingerly back down to the floor... before a playful smirk crosses her face, and she sends you soaring across the room in a series of graceful spins and spirals. You shout, surprised, but before too long are laughing right along with her, coming the closest to flight you've ever known. It's... exhilarating. When she sets you down several minutes later, obviously having hardly broken a sweat. In prior experiments, she'd been hard-pressed to so much as lift a limb with her magic. Both of your faces are flush with exuberant triumph.

"Oh, this is so wonderful. And it's just the beginning. This is going to open so many doors for both of our species. I'd say the future is looking pretty bright." Smiling warmly, Twilight reachs up with both hooves, wrapping them around your neck to pull you into a deep hug.

And you both recoil as though shocked by lightning.

"Wh-what was that!?" Twilight asks, looking as stunned as you feel. The two of you had touched on plenty of occasions over the weeks, but never paid any particular attention to it; Twilight was warm and soft, but that was about it. This time, the very instant your flesh had met hers, there was something... else. It felt warm, tingly, coming from everywhere your skin was in contact with her body.

"It felt like you were... pulling on me." Twilight regards you warily. "Maybe... maybe opening you up to magic had some unforeseen consequences. But..." She bites her lip. "I don't feel like it's dangerous... Maybe if I just..." Slowly, gingerly, her hoof reaches out to rest against your forearm.

You both gasp as the sensations strike you in unison, a sudden soothing warmth seeping into you everywhere that her hoof makes contact. Twilight squeaks, but leaves her hoof pressed up to your skin for several seconds before pulling away, an oddly conflicted look on her face.

"I think... I think you were, um... sucking my magic out."

... What?

Twilight blushes. "Well. Ugh, I can't believe I never considered this. Your body resist magic, right? So basically, it's a void. An empty space, magically. A hole. And just now, we put something incredibly magic-rich in direct physical contact with something magic-deficient. It's just simple diffusion at work -  your body is now magically receptive, so my magic is being absorbed into it whenever we make physical contact."

That's... kind of alarming, actually. Bringing your forearm up to your face, you look idly at where Twilight's hoof was touching you. The skin is unmarred, but you still feel it tingling slightly. Weirdly enough, you realize it actually felt... pretty good. Suddenly realizing that maybe draining the magic out of something that depends on magic to live might not be a good idea, you worriedly ask Twilight if she's alright.

"Oh, I'm fine, don't worry. I certainly felt it, but human bodies don't seem to have much capacity for magic even in this 'released' state. You could never drain enough of my magic to actually hurt me. Actually, it... " She trails off suddenly, her eyes looking anywhere but at you. One of her hooves scuffs lightly at the floor, and even through her coat, you can see the redness of her cheeks. "It felt... really good."

Twilight looks back up at you, a painfully fake relaxed grin on her face. "Ah, well, I should probably be documenting all of this, shouldn't I? Wouldn't be much of an experiment if I wasn't being thorough! so... yeah! I'm just... expanding on my findings, is all. There's nothing weird about that!" She chuckles nervously. "So, uh... let's try that again."

Nervously, she pulls your shirt off with a quick spell, and pushes a hoof to your chest. She sucks a quick breath in between clenched teeth, every nerve in her hoof coming alive with sudden stimulation as her body's magic rushes to the spot where her flesh meets yours. Even the normally insensate material of the hoof itself suddenly feels as sensitive as any part of her ever has. Tracing the limb slowly across your bare flesh, she gasps as she realizes she truly feels you, all of you, in vivid detail. Even the very muscles beneath your skin seem to jump out at her, and she trembles slightly, almost unsure of where you end and she begins. A portion of her magic seeps into you, but there is no discomfort associated with the feeling. Instead, her mind seems to buzz pleasantly, as though some sort of pressure she was not even aware of is being relieved. It feels... right, in a way that she finds difficult to qualify. After all, this is what she wanted, wasn't it? To see if it was possible to introduce the magic of harmony into a human system. It seemed she had succeeded beyond her wildest imaginings. So fixated is the pony upon the feedback she is receiving, she hardly even notices her pulse quickening, her breath coming ever so slightly more labored.

You aren't faring much better. Your skin lights up as Twilight's raw magical essence flows into you, a sharp tingling sensation that is quickly followed by a spreading, soothing warmth. You feel the blood in your body rushing to where Twilight's skin meets your own, turning the already-sensitive flesh even more sensitive. Before you've even considered the possibility, the steadily growing resonance reaches your head, and at once you find yourself overcome with a sensation of calming satisfaction, as though you had just taken a particularly potent painkiller. You smile slightly, basking in the relaxing throb of Twilight's magic filling your body. Dimly, you wonder if this is really a good idea, but quickly dismiss the thought.

Twilight finally pulls away from you, chest visibly rising and falling with slow, deep movements. "That was... um... wow. I think maybe I should make absolutely sure though, of... the thing..." Trailing off, an odd look in her eyes, Twilight gently pushes you down into a sitting position, and presses her face into your chest.

A low moan escapes her as the unicorn breathes in deeply of your faint musk. Eyes closed, Twilight rubs her face against your body, pressing into your chest, then your shoulder, then your neck, keeping her flesh tightly pressed to yours. With a moan to match hers, you unthinkingly bring your hands up to run up and down her neck, more of that tingling pleasure spreading through your body as you do so. Twilight's head begins to sink, exploring further down your body, until at last she comes to your groin. Unabashedly, the unicorn buries her face in your pants, nuzzling your rapidly-stiffening prick through the fabric, and moans again. A powerful, enticing scent begins to fill the room, rapidly growing in strength and filling your head with all manner of wonderfully promising thoughts. You almost don't hear the faint 'drip' of moisture when it strikes the floor. Craning your neck to past Twilight, you see a second drop, then a third, fall to the ground between her hind legs, her arousal quickly bringing your body to full attention.

She wasn't in heat earlier this afternoon. You knew that much. It would have been rather hard to miss. But somehow, impossibly, she is showing every physical indication of it now. And somehow, even more impossibly, your own alien physiology seems to be responding to it in full. The pheromones of her scent seep into your brain, turning your thoughts into a lustful haze of desire. Every natural instinct of your body demands that you take the oh-so-wonderfully ready mare before you and fuck her silly.

You are more than happy to oblige.

You fumble with your pants, but only just barely manage to get the button undone and zipper down before Twilight loses her patience. The magenta aura enveloping your lower body is the only warning you get before your pants are bodily ripped from you, tearing in the unicorn's powerful telekinetic field before being tossed absently to a corner of the room. Free of the restraining fabric, your penis bobs forth, almost bopping the purple mare on the nose. Her eyes lock onto it, and you can actually see her licking her lips. Parting her mouth ever so slightly, Twilight leans forward, just barely taking your cockhead into her mouth, more a kiss than suck. Elecric pleasure arcs through your member, and you grit your teeth. Your entire shaft twitches in appreciation of Twilight's soft, hot lips, and you only just barely manage to resist the urge to grab the pretty little unicorn and furiously fuck her face.

Just as lost to her instincts as you are, Twilight doesn't mean to keep you waiting. Her entire body screams at her, demanding she pour as much of her magic into you as possible, and what little remains of her intellect is currently in full agreement.  Pulling her mouth free of your sensitive flesh with a 'pop,' Twilight wastes no time. Turning directly away from you, she lowers herself onto her front legs, arching her back to present you clear and unfettered access. Her tail rapidly swishes out of the way, displaying a very wet, powerfully winking marehood. Slick trails of her lubrication drip steadily onto the floor below. Turning her head, she looks over her shoulder at you.

"Mount me, now."

Growling in primal desire, you reach down, hands slapping onto her flanks directly over her cutie marks. The soft ponyflesh jiggles ever so slightly under your strikes, almost tempting you to continue, but better things await. Gripping your mare firmly, you position your cockhead at her dripping marehood, heat practically radiating from the pony's eager sex. As soon as your cock touches her pussy lips, they contract in another powerful wink, as though trying desperately to draw you in. You enter Twilight with deliberate slowness, ecstacy filling your veins as your cock sinks, inch by inch, into her desperately grasping marehood. Her soaked tunnel offers no resistance. Twilight groans, trying to push back against you and impale herself on your length, but you hold her firmly in place. Once your cockhead has fully vanished between those fat purple lips, you smile widely to yourself, knowing just what to do. With a powerful shout, you thrust into her pussy as hard as you can, burying yourself into the unicorn's cunt in a single thrust.

Twilight screams as you so suddenly fill her. The magic in her body rushes to her groin, embracing you inside of her, igniting every last nerve with an ocean of pleasure. Never, ever, ever had she felt anything to compare to this. Her heart hammers fiercely in her chest, eyes rolling back in her head. The young unicorn was no stranger to orgasms, having clopped her young, needy body to an uninspired stress-relieving orgasm more than once, but the sensations shooting through her body right now were so very, very beyond that. Her muscles clamp down around you tightly, determined to hold you inside of her no matter what. Through the energy pouring from her body into yours, marking you with your pony lover's essence, she could feel every glorious inch of your shaft, filling her, pleasuring her, completing her. It was bliss. It was heaven.

It was magic.

Despite Twilight's desperately tight hold on you, her ample juices ease your passage, and you begin to fuck her in earnest. The same pleasant haze from before blankets your thoughts, unicorn magic filling you with a curious lightness of spirit - a heady, giddy sense that everything is exactly as it should be. Twilight's pussy is hot, and tight, and wet, and ever so welcoming around you, and you are able to give yourself over fully to the joy of rutting her senseless. Gently, you slowly fall to to the ground on your side, pulling Twilight down with you. You begin to kiss up and down her neck, genuine affection for the lovely unicorn filling you. You continue to pump her pussy without missing a beat, relishing in the soft squishing sound it makes as her wet flesh clings to you. She's so beautiful, so perfect. You wonder how you never saw it before.

For an eternal, timeless moment, there is nothing but your intertwined bodies, exploring, caressing, thrusting. The concept of time, or anything but Twilight's body pressed to yours, loses all meaning. When she pulls away from you, your dick popping free of her churning depths, you can only reflect bitterly on the unfairness of the world for a moment before she repositions herself facing you and impales herself on your rod once more. This time, her tongue eagerly meeting yours in a deep kiss. Your rhythm falters, pushing into your beautiful unicorn lover with greater and greater urgency. Twilight's marehood twitches as she moans into your mouth, her pussy coaxing you for all that you have to give.

A moment later, the pleasure peaks, and she clamps down tightly on you as you drive into her one last time Your balls tighten, cocking jerking as you both cry out in ecstacy. You empty yourself into Twilight in powerful, volcanic spurts, coating her insides white with your seed. Pressing your lips to hers once more, you bask in your orgasm, feeling your buried cock twitch again and again. She's yours.

Once you are certain that you've filled Twilight with as much cum as you can, you finally pull free with a satisfied sigh. Your body still tingles all over with latent magicks, and with your release returns a small measure of clarity. Touching Twilight feels good - it feels as good as anything ever has - but some insistent little voice in the back of your head tells you not to overdo things. You feel remarkably energized despite your exertions, but your flesh still feels far more sensitive than it should. Bringing a finger to your forearm, you trace a line down your own skin, shivering at just how unexpectedly good it feels. You wouldn't trade what you'd just felt for the world, but maybe touching Twilight again before this effect wears off wouldn't be such a good idea.

"More..."

You look down at the prone purple pony by your side. At some point during your introspection Twilight seems to have recovered her senses, and she's now sitting up, looking at you. Far from the calculating intelligence or unassuming innocence usually dancing in her eyes, however, the look she is shooting you now gives you pause. Her entire body is still taut with tension, muscles tensed as though prepared to string. Her horn glows brightly, charged with aimless magic. Between her legs, you see a tiny trail of your cum oozing from her freshly fucked pussy.

"More." Twilight demands.

Unconsciously, you scoot away from Twilight slightly. Slowly, you begin to explain why you think that might not be a good idea right now.

"Don't care. More."

Well that was... blunt. Again, you pause: this feels so very unlike what you know of the modest young unicorn. Trying to think of some solution, any solution that will satisfy her, you once more notice the white trail leaking from her nether lips. Regretfully, you tell her that right now, you don't think you have any 'more' to give her.

If anything, the manic lust in Twilight's eyes seems to intensify, the urge to breed coupling with the need of magic to propagate itself. Her body screams at her, demanding that she take her prize, to claim her mate and fill you with her essence in equal accord, to fill your body with all the magic it can handle - and the young unicorn has so very much magic to give. She needs you. NEEDS you. Why can't you just understand that!?

Twilight's horn glows ever brighter, her frustration gradually building and filling her with unchecked power. No careful spell is formed, no clever incantation; in her current state of mind, it is doubtful that Twilight could manage one. Instead, she lets the power grow and build, shaped only by raw will and desire. For most unicorns, who possess no exceptional amount of power, such an uncontrolled release would not amount to much, magic generally requiring careful shaping to achieve any real effect.

But Twilight Sparkle is not most unicorns. Allowing all of her emotions, her lust, her frustration, her power all build to a breaking point, Twilight screams out her frustration into a single, aimless magical burst. Shaped by her desire, the magic answer's the young unicorn's call. You can only watch, wide-eyed, as the massive, erect purple marecock erupts from Twilight's groin.

And it is so very much to look at. Twilight's cock is as amazing a member as you've ever seen, easily surpassing that of any stallion. Strong and thick and already dribbling precum, the hot pillar of unicorn flesh throbs, pointing directly at your face in an intimidating promise of things to come. The whole rod glistens faintly with some sort of moisture, looking for all the world like a thick lubricant. A pair of balls dangles behind the virile member, large and heavy, covered in the same light purple fur as the rest of Twilight's body. The effect is as alien as it is natural, the bulbous flared head a sharp contrast to Twilight's natural femininity and yet somehow looking like it really does belong there.

You gulp reflexively, appreciating the view more than you think you probably should. Twilight's magic flows thickly through you of its own volition, resonating with the mare's desires. You love her, don't you? You want her. She wants you. It feels better than anything you've ever experienced in your life. There is no reason to indulge. Somewhere deep in the back of your head, a quiet, ruinous little voice whispers.

'I wonder what that would feel like inside me...'

Twilight is done waiting. As you sit blankly on the bed, mind locked in hesitated confusion, the mare pounces. With strength born of lust, she quickly presses her hooves to your chest, pushing you back down to the floor. Before you can recover from the unexpected assault, she grabs your side, pulling you over to lie face-down on the floor. With another hungry growl, Twilight jumps onto your back,

Reflexively, you squirm, fighting back against her grasp. Twilight lets out a mewl of protest, somewhere in-between a needy animal and a child being denied a treat. The adorable sound plays potently off the lustful haze enveloping your mind, and you hesitate for a moment, going still. It's all the opening the unicorn needs, as she finally finds what she's been looking for. Her swollen flare presses tightly up against your pucker, and Twilight pushes inside of you with a victorious cry.

Your mind instantly goes blank, completely consumed by the immense mare cock inside of you. Twilight's length is well-lubed, and you feel only the tiniest tingle of pain as her length invades your depths. Any thought of protest is completely abandoned, all rational thoughts drowned by out the sensation of being so very -full-. Twilight falls heavily against your back, resting all of her weight upon you in a subconscious attempt to pin you possessively underneath her. She isn't heavy enough for that, but the shift in angle serves to drive her meaty prick a few more inches inside of you, and the stimulation causes you to gasp as you buckle submissively nonetheless. You can feel every bump, every vein, even the faint throb of her pulse through the shaft so tightly filling you. Twilight closes her eyes, groaning heavily into your ear.

"Yeeeeeessssssss... Mine..." Ever so slightly, she pulls back before bucking her hips into you once more, stretching you widely on her shaft. "Mine." She begins to alternate between kissing and lightly biting at her neck, over and over, as she humps your asshole at a light, unhurried pace, every push just slightly deeper than the last. "Mine. Mine. Mine!" Your entire body tingles, eagerly absorbing the magic that Twilight is so very happy to offer. Every thrust feels just a little more -right-. Looking over your shoulder at where Twilight's cock disappears inside you, plunging in and out, you can only smile in supreme bliss. The last of your reluctance fades.

Faster.

Even through the fog of her thoughts, Twilight slows for a moment. Her dick still firmly embedded inside of you, she leans down, looking at you curiously. Weakly, you smile back up at her.

Please, faster...

A small smile creeps across Twilight's face. Leaning in, she pulls you into a surprisingly tender kiss, letting her tongue play with yours for a moment.

Then, repositioning herself above you, she cuts loose.

What Twilight may lack in endurance or experience, she more than makes up for in size and desire. Her cock hammers you relentlessly, pumping in and out of your ass frantically, dominatingly. You moan continuously throughout, unable to help yourself as the young mare uses you for her own pleasure. Twilight's hips slap loudly against you time and again, filling the room with the sound of your submission as her flare sets off explosions of bright-white pleasure behind your eyes with every thrust. It's too much. You love it. You can't take any more. You never want it to stop.

Twilight collapses on top of you, legs twitching and cock hilted, and cums.

And you feel it shooting into you and it's so warm and there's so much and you feel her cock jerking again and again and oh my god oh my god it's so good and she's still cumming and -

You lose track of everything for a while. How long you are 'out' for you couldn't say, but Twilight is still inside of you when your thoughts swim back into focus, lightly kissing up and down the back of your neck. No longer do you feel any of that familiar pulling or tingling; you assume you're as full of magic as you can be. Twilight doesn't seem to be in any hurry to pull out though, and you feel no desire to rush her. Her weight on top of you is oddly reassuring. You can't reach her very well in your current position, but manage to bring a hand down to trace idly up and down her flank, and she seems to appreciate the gesture. Still, her eyes fall, downcast.

"I... I'm sorry. I never even remotely expected a reaction like that. It was like I couldn't even think. All I wanted was, all I needed was... If you never want to speak to me again, I'll understand, and I'll burn all of my research notes."

Wincing, you gently pull out from underneath Twilight, feeling suddenly and profoundly empty as her cock pulls free of you with a 'pop.' Gingerly and favoring your rather sore butt, you turn towards Twilight and pull the pony into a hug. Very quietly, very seriously you tell her that you are willing to forgive her. Under one condition.

She smiles that beautiful, adorable smile you have come to love - faintly, but with rising hope at the idea that you might be willing to look past what she's done. "And what's that?"

She has to promise that the two of you get to do this again.