[NSFW] Maniacal Tendencies

>Fluttering your eyelids open, you find yourself staring up at an unfamiliar ceiling.
>Dirty, grimy, grey, worn with dust and decay.
>Cobwebs filled the corners, all the spiders long gone.
>You found yourself standing with your back against metallic wall, cold seeping in through your suit.
>Flexing your muscles reveals equally icy chains keeping you there.
>Maniacal laughter echoes throughout the building, coming from somewhere beyond the small dark room you found yourself in.
>There's a crackling sound, followed by the rising hum of electricity.
>Machines coming to life.
>Gears turn as the wall tilts upwards behind you, revealing an antechamber criss-crossed with catwalks above deep vats of... is that shampoo?
>Your nose twitches as you take in the scent of it.
>Strawberry.
>You find yourself dangling above one such vat, the scent almost nauseatingly powerful.
>The machines fall silent, and the laughter stops.
>An eerie quiet settles across the warehouse.
>From somewhere above you, you hear a soft 'ting'.
>It repeats, getting louder and louder.
>'ting', 'ting', 'ting', 'ting'.
>Scanning the darkness of the ceiling, you can't find the source of the noise.
>"Well well well, if it isn't the Power Ponies resident beastie itself, the exotic creature known as 'Anonymous'."
>Another bought of laughter bursts out, echoing out until it sounds like it's coming from everywhere.
>"I have to say, not many things catch my eye these days, but when they do..."
>A shrill laugh erupts from above you.
>You catch a glint of movement speeding towards you.
>You jolt backwards as a mare slams into the metal sheet holding you, four dull thuds echoing out as her hooves impact the metal around you.
>"they /really/ do."
>Her eyes, layered green and red, blaze with a wild intensity.
>A wide grin stretches across her face, almost making her look overjoyed to meet you.
>Almost.

>Green tentacle-like appendages slither down from her back, wrapping you tightly.
>It takes you a second to realize just how soft they feel, and another second to realize that they're all coming from her head.
>It's her, the sworn enemy of your friends.
>The Mane-iac.
>"You, my dear Anonymous, are the Power Ponies prized pet."
>One of her hair-tentacles reaches down, stroking you across your chin.
>"I've seen the way they treat you, like a common pony."
>Another hair-tentacle presses into your shoulder before she slowly runs it down your chest.
>"Yet you can be so much more. I've seen you take magical bolts to the chest and walk away!"
>Yet another hair-tentacle wraps around the back of your head, pulling you closer to the crazy mare above you.
>Her lips sensually close to yours, her breath tickling your face.
>"With your help," she whispers, "we could dispose of the Power Ponies and rule Maretropolis together!"
>Her eyes stare into yours, mouth inches away from your own.
>"What do you say, Anonymous?"
>She's so close to you.
>It would take next-to-no effort to reach out and plant a kiss on her sensual mare-lips.
>Just one quick peck to seal the deal.
>One quick peck to ally yourself with one of the most insane ponies that has ever existed.
>One quick peck to betray your friends.
>You turn away.
>Laughter bursts out from the mare above you as she pulls herself away on her hair-tentacles.
>"Oh well, can't say it wasn't expected."
>You hear the sound of crates being pushed to the side and metal objects sliding around on the concrete floor.
>"That's why you always have a back-up plan!"
>The Mane-iac skitters back over towards you, some small metal object in hoof.
>"With my latest acquisition, the Hypno-Rayinator 9000, I'll have you kissing the ground I walk on!"
>She deftly slides an energy cell into it as she pulls herself back up in-front of you.
>"Say Anonymous, what do you get when you cross a mentally unstable mare with a society that abandons her?"
>You gulp.

>She smiles.
>The trigger clicks.
>The trigger clicks again.
>The trigger starts clicking rapidly.
>The Mane-iac's smile drops as the ray-gun refuses to fire.
>Her face starts to contort before she turns around and throws the ray-gun against the ground, screaming in anger.
>On impact it shatters into pieces, sparks flying as electronics fizzle.
>"Useless! Why'd I even bother stealing it!"
>She goes quiet, her ragged breathing the only sound filling the warehouse.
>Then, she starts laughing.
>It's quiet at first, just barely noticeable, but it builds until she's clutching at her sides.
>The laughing cuts off.
>She turns back to you, an unreadable glint in her eye and a sinister smile on her face.
>"Who needs hypno-rays anyways? I'm certain that I can change your mind all by myself."
>She slithers forwards, hair tentacles whipping out towards you.
>You close your eyes and brace yourself, but the pain never comes.
>You feel a slight pressure as something runs up your crotch.
>Your eyes shoot open and downwards.
>One of her hair-tentacles is hovering just above your crotch area.
>It presses downwards, sensually stroking your dick.
>Involuntarily, you start getting hard from her ministrations.
>"Mmmmm, just like any other stallion where it matters."
>You feel a slight tugging on your waist.
>Her hair-tentacles deftly unfasten your belt and slide underneath your waistband, pulling your pants down.
>She stops for a second when she sees your boxers, but gives them the same treatment as your pants.
>Your quickly-growing erection stands bare against this mare's whims, with nothing you can do about it.
>Her hair-tentacles creep forwards, poised to strike.
>Your half-hard cock decides in that very moment that twitching was a good idea.
>The Mane-iac bursts out laughing.
>"What's the matter, Anonymous? Can't keep it under control?"
>She leans in, hooves under her chin, propping herself up on a tendril.
>"Soon enough, you won't want to."

>One single hair-tendril snakes forwards, coiling itself around your cock.
>Her hair is surprisingly soft, especially since it seems like it can support her weight easily.
>You can't help but wonder just how much time she spends taking care of it every day.
>Your breaths stops as she starts to stroke.
>She's gently applying pressure from all angles, the soft strands sliding up and down your cock with ease.
>You can't help but let out a breath as you momentarily lose yourself in the bliss.
>You hear a faint snickering.
>She pulls her hair tighter around you, increasing the pressure.
>She even wraps herself around your tip, preventing you from growing any bigger.
>One tendril wraps around your base, squeezing it tightly.
>You can feel your hard-on getting even harder as the blood-flow is restricted.
>She continues to stroke, silken-strands sliding up and down your member.
>You get so hard that it starts to become painful.
>The Mane-iac notices you struggling to keep a grasp on yourself and starts giggling.
>Your fists clench and your toes curl as she starts to bring you to the edge of orgasm.
>Moments before the floodgates burst open, the tendril around the base of your cock squeezes /hard/.
>You hit your peak, thrusting into her hair-tentacles with wanton desire.
>Nothing comes out.
>You can feel a massive pressure right at the base of your cock wanting to flow upwards and outwards.
>It wants to coat her hair with drops of white.
>Nothing.
>The Mane-iac bursts out into a fit of laughter, rolling around on her tendrils as she struggles to contain her outburst.
>Yet through it all, the pressure at the base of your cock refuses to yield.
>"Having a little trouble there?"
>She slides forwards, mouth inches away from your dick.
>Her breath tingles, making your member twitch and jerk with every exhale.
>You can't help but thrust a little, as both a way to try and struggle out of her vice-grip and to reach the source of the stimulating wind.

>The sight sends her into another laughing fit.
>Your head is so fuzzy by this point that you don't even care.
>You needed release.
>Whatever it takes.
>"Mmmmm, you look about ready."
>She runs her wide horse-tongue up your shaft, enveloping half of it in warm, wet muscle.
>You couldn't stop yourself from thrusting into it even if you wanted to.
>"So, what do you say, ready to come with me? Take a walk on the darker side of the streets?"
>Her words barely register, all except for one: cum.
>You nod vehemently.
>She bursts out laughing.
>It's a joyous laugh, like the kind you might find from a kid on christmas morning.
>Her hair-tentacles slip underneath the chains holding you in place and snap them off.
>Suddenly free, you find yourself falling into her embrace.
>Her hair-tentacles have made a web of sorts around the two of you, suspending you in mid-air.
>She turns her back to you, revealing a slit in the rear end of her uniform.
>Unveiling two glorious horse-holes, prime for the taking.
>Her hair-tentacle was still wrapped around the base of yours, still bottling up the pressure inside.
>Few thoughts ran through your lust-addled mind, but there was one thing that made itself exceedingly clear.
>Those holes were the key to your release.
>You'd fill those holes up so full that they'd drip into the shampoo vat below you.
>Some (un)fortunate mare would find parts of her hair a little stickier then the rest once this batch shipped.
>You shuffled forwards, hair-tentacles acting as stepping stones beneath your feet.
>Each step leading you closer to release.
>Closer to her.
>Your hands wrapped around her succulent flank as you lined your dick up.

>Then, you thrust.
>Mane-iac let out a moan as your cock penetrated her pony pussy.
>Her hair-tentacle loosened sightly before snapping back shut, but in that moment a fresh surge of blood rushed into your member.
>With new-found vigor, you starting pounding away.
>Each thrust pushed the two of you forwards in the netting, only to slide backwards in the down-time.
>Your hands wandered over her backside until they found a firm grasp on her haunches.
>Mane-iac started to giggle between moans, her spare hair-tentacles waving around as if they had a mind of their own.
>Her eye caught onto some of them.
>They snapped taut before shrieking backwards and wrapping around behind you.
>In a few seconds, they were pressing up against you in-time with your thrusts.
>A few more shot forwards, pressing against something and stabilizing the two of you.
>Each thrust had more force behind it, and hit harder.
>With nothing except air beneath them, Mane-iac's knees started to jitter and shake.
>You felt a familiar pressure building.
>You silently begged her that she'd give you the release you craved.
>A few thrusts later, moments from peak once again, and your prayers were answered.
>The tendril wrapping around your cock loosened, falling to the side as 2 climaxes worth of cum surged outwards.
>Mane-iac's legs went taut as you painted her insides white, her hair-tentacles alternating between stiff as a pole and drooping to the ground.
>Mane-iac looked around, glassy-eyed, and started slowly lowering the two of you to the ground.
>When you reached the ground she pulled you in close, her hair wrapping around the two of you.
>It formed a cocoon-of-sorts around the two of you, leaving you to cuddle in the afterglow.
>In a single moment of post-nut clarity before the afterglow, you wondered how you were gonna explain this to Twilight.