A/N: Not quite a Halloween fic, but definitely a spooky season fic~

Do enjoy~

Forbidden Knowledge

With how chaotic everything in her life had been as of late, Shiori hadn't had much time to organise her personal archive.

As the one and only archiver of it such a duty was important, for reasons both obvious and not. She had to make sure the various books remained in good condition, that no rats or other small rodents had gotten in and started chewing through the pages, that the walls and roof were fine so no leakage dripped water in on the books or shelves, and so on. Adding to all this many of the books in her archive were magical in nature, from tomes on magic to curses to forbidden knowledge that risked drawing the wrong eyes if revealed. She'd very much not want to summon an old god, thank you very much.

Though maybe she could bribe it with turkey sandwiches. Everyone loved turkey sandwiches, right?

Shiori dismissed the thought with a snort, the sound echoing off of the black brickwork. She wasn't bothered by the haunting quiet though – she always had a flair for it, if anything. While some might find it unnerving to be stood alone in a massive empty library, she found it soothing in a way; therapeutic. Sure it was a bit spooky at times but she wasn't afraid of a fight with a lesser demon if one decided to show its face, and any robber would quickly find all of her books were enchanted to only be openable by her and her alone.

She hoped the effort of stealing such books was worth the electrocution that followed.

Alas such an event was a rarity, something Shiori could only sigh about. Lifting her candle she cast the amber light about as she walked further down the main corridor, eyes sweeping the shelves and cataloguing each and every one. So far so good, though she had to be thorough – last thing she wanted was to let a book of blasting spells rot and self-destruct, due to the magic woven into the pages. That would be a headache. Literally, if she happened to be in the blast radius when it went off.

Just then something prickled her senses. It was impossible to name but it made her stop and look about, suddenly on-guard. Nothing showed itself, her candle light flickering ambiently as she turned this way and that, the bright gold light fading to amber as it reached the edges of its reach, the rest beyond devolving into darkness with no other natural light to illuminate it. Silence answered her – no wind, no dripping water, just a stilted, impenetrable quiet.

Yet the slight wariness didn't wane. Humming slowly Shiori looked about the shelves more carefully, her instincts nudging her towards the shelf on her right – her eyes scanning the rows of books of various sizes and girths, the spines of some fresh whilst others were fading to time. Yet her spine tingled as she laid eyes on one particular book on the lowest shelf, the cover black with just a singular eye emblem on the back and nothing else.

''I don't remember putting you here...'' Shiori said slowly, frowning as she set her candle on a shelf. She was pretty confident in being able to recall every book she owned – it was basically her job after all – but this one... she couldn't.

Maybe she just forgot about it? Then again such an anomaly was suspicious, tempting her to grasp the spine and pull it out, unfurling it to reveal its pages-

Pages full of an inky blackness, like a yawning void within the parchment.

''Oh crap-!''

Shiori threw the book to the floor just in time to dodge the black, inky tendril that shot out, the limb quickly taking a more tentacled form if without any suction pads. Nonetheless the tendril had no trouble gripping the floor and lifting itself, allowing even more black tentacles to spew out from its inky core, slithering up the shelves and along the stone floor towards her, moving with undeniable intent.

Shiori didn't wait to see what it did, spinning on her heel and bolting for it – turning the corner sharply and sprinting for it-

Or that was the plan when she a tentacle wrapped around her ankle, a yelp escaping the archiver as she fell on her front. She barely managed to catch herself on her hands but the trip stunned her for a precious second – and in that second the tentacle yanked her closer. Squeaking Shiori clutched onto the stone shelf and pulled on it, fighting against the tendril's strength and making only moderate progress.

When a second glistening black tentacle whipped around the corner and surged towards her. Growling Shiori kicked it, her steel-toed boots jolting the gelatinous thing back for only a second before it coiled around her leg – but rather than grip it instead shot further up her thigh. Not a moment later she felt it slither up her inner-thigh and press very intently against her crotch, practically rubbing itself against her panties.

Shiori froze up, shock preluding the understanding that dawned – but alas the tentacle took full advantage of her shock by slithering around her panties and rubbing her womanhood directly, its slippery length brushing along her lips and nuzzling against her sex, its motions chaotic and frenzied yet forcing a moan out of her all the same – her cheeks quite to burn red as she realised that.

''H-Hey! Stop that!'' She tried to kick but both legs were bound now. ''I-I said stop! I don't agree to whatever contract you- hyaa~!''

Her hurried denials melted into a squeal as the tentacle's bulbous tip found her entrance – and without mercy plunged inside. It sent a jolt through her system but there was little pain thanks to its gelatinous nature, her insides clenching around it but not stopping it from ramming all the way inside of her, ceasing only when it bumped against her cervix. The deep penetration sent spasms through her loins and made her cry out, head thrown back against the stone floor and both hands clutching onto the tentacle itself.

Alas she couldn't get a grip, its slippery form gliding beneath her palms and plunging it between her legs, scraping all her sweet spots and fucking a cry out of Shiori's lips. She shook her head, gasping, but another quick thrust forced a whimper out of her that she couldn't hope to hold back – her lungs burning as she cried out all the air in them. The tentacle only got quicker too, each thrust more earnest than the last and exploring her depths with a ravenousness more akin to a curious beast than a mere tendril.

''A-Ah, h-hey~!'' Shiori kicked one leg futilely, her breathing hard. ''I said, stop, m-mnn~!''

It didn't feel good, she told herself in blatant denial. Her body betrayed her though, every thrust electrifying her insides and making her gasp for mercy, her back arching away from the cold floor as the tentacle filled her pussy up. The way it thrashed and squirmed about as it thrust was novel beyond words and overwhelmed her with the stimulation, every breath gasping as she tried and failed to struggle against the pleasure assaulting her.

Just then another tentacle tickled her butt, slithering low to the ground and joining its compatriot in her panties – but not going for her pussy. No with wide eyes Shiori realised where it was going and gasped a denial, struggling-

Only to squeal as the second tentacle penetrated her asshole. With its natural wetness the tentacle slammed in without much pain but it was still novel to take it in the ass, making her wail and thrash about on the floor – pleasure so very foreign jolting up her spine and sending her into spasms as the two tentacles pounded her holes, their long lengths easily reaching in deep and scraping against her insides, stimulating her in ways she didn't think was possible.

The one in her ass went especially deep but, perhaps mercifully, didn't go all the way through. Instead it seemed content to just piston into her backdoor; withdrawing to her asshole only to ram deep inside, the suddenness of each and every thrust electric and making her whole body tense up. Her hands briefly tried grasping the tentacles but she gave up moments later, clutching at the nearest shelf for support and feebly trying to pull herself further away to no avail.

'Oh god it feels so good~!' Shiori bit her bottom lip, struggling to hold back the gasps that ripped free from her throat – a squeal escaping her as another tentacle came in and rubbed her clit. 'I can't, oh god I can't~!'

The tentacles slammed into her with sudden vigour, pounding her pussy and asshole roughly and forcing another cry out of the archiver, her back arching sharply as overstimulation shocked her nerves and pushed her to her limit, her insides tightening around the tendrils but not stopping them from kissing her cervix and stirring up her ass-!

''F-FRICK~!'' When with a wail, Shiori orgasmed.

The tentacles mashed themselves into her spasming holes as she came, amplifying her orgasms to new heights – when both hilted and unleashed a deluge of thick black cum deep inside of her. It was startlingly cold and added the icing to her orgasm, her eyes nearly rolling back as her womb was touched by the plentiful spurts of eldritch seed whilst her asshole was pumped full of the sticky fluid too, every tensing of muscle letting her feel the stickiness in both holes.

Shiori whimpered at the sensation – at the pleasure that left her feeling so hot and bothered she could hardly think. Yet she was brought back to reality as the two tentacles pulled out, their tips leaving her holes with a wet pop and allowing their seed to overflow down her ass, the stickiness making her whine. A whine that jolted into a yelp as two fresh tentacles snatched her by her ankles and dragged her across the floor, bringing her back towards where the book laid.

Even as her body shook with the aftershocks of pleasure Shiori retained enough sense to keep resisting – one hand catching a shelf and holding onto it, but alas the stone was fairly smooth and her fingers couldn't get a grip good enough, resulting in slowing down her entrapment and nothing more. Her nails blunted on the stone as she tried to dig them between the cracks in the rock and her breathing hastened as the book lifted itself up on numerous smaller tentacles, opening itself to her.

And then the moment she was close enough a dozen smaller but no less durable tentacles wrapped themselves around her thighs and hips, attaching itself to her crotch. Shiori grabbed onto the book and tried to pry it off, grunting and panting as she panicked, all too aware of the fresh tentacles that were spawning out of the black abyss. Tentacles that licked and lashed across her overstimulated pussy, the slightest rub enough to make her gasp and every press forcing a moan out of her, shuddering as the notes were.

''Ahh, no, you can't~'' Shiori whined as she pushed, trying to get the book away-

When one tentacle probed her entrance – and then plunged inside. She squeaked, tensed, and then ultimately moaned as the inky-black tendril weaselled its way deep inside of her – twitching and twisting as it nuzzled its way deep inside of her womanhood. Even though she'd already felt one inside of her the sensation was still so novel it left her gasping for breath, her pussy achingly sensitive as the tentacle slithered and rubbed about, probing her cervix soon enough.

Such thoughts halted as another tentacle teased her stuffed opening too; pushing, prodding – and just as she connected the dots it plunged inside. In an instant Shiori threw her head back with a squeal, her hand reflexively covering her mouth and muffling the noise as the two tentacles pumped disjointedly into her pussy – one entering while the other pulled back, stirring her up in ways no sex toy could compare to, opening her up.

Then as if to drive her into further madness the tentacles recoiled, pressed together and then corkscrewed around one another, ploughing deep into her and crashing against her innermost parts. She yelped, eyes screwing shut and a moan lurching from her throat unbidden, her insides electric as the tentacles suddenly moved in sync – slamming in deep and recoiling just as fast. The other tentacles around her thighs only made it feel lewder with how they stroked at her skin or dug in a little, squeezing her legs and massaging her groin; one small tentacle even emerging to rub her clit.

''F-Frick, ah, frick, frick...!'' Shiori helplessly cursed, laying back with legs spread for the book. ''Please, gimme a break, ah, i-it's too...!''

The cursed book did not listen; if anything the corkscrewing tentacles pistoned into her pussy even faster than before, pumping into her and crashing deep inside of her. She gasped and flinched each time, the slight discomfort vastly overshadowed by the pleasure assaulting her nerves, her loins aching so intensely as they were churned up by the sticky tentacles – when she felt them push in a bit deeper. Deeper than they had any right to go.

''W-Wait, you can- HYAA~!''

Then with a biology-defying ease the corkscrewing tentacles penetrated her cervix, thrusting up into her womb. Shiori's eyes bulged and she threw her head back with a scream, startled by the raw pleasure that hit her – the rush of new, alien pleasure that seized deep inside of her. Her heightened sensitivity let her feel every thrust and stroke, feel the bumps of the corkscrewed tendrils, feel the twin bulbous tips bump against her innermost parts. They filled her womb with intent and pushed in some of the prior creampie with it, coating her insides with the sticky black fluid.

More of which the tentacles seemed intent on delivering; slamming into her weeping, soaked cunt with such vigour she could only cry out helplessly – wailing her lungs out as pleasure seared her nerves and sent spasms jolting up her back. One hand clutched at the tentacles to no avail, able to do naught but squish their gelatinous lengths as they fucked her far deeper than they had any right to, her womb stroked and rubbed by the thrusting tendrils.

''Oh shit, oh shit...!'' Shiori bit her lip, feeling the tight knot of pleasure become unbearable. ''No no no not aga- aghh~!''

And with a choked cry Shiori suffered a second orgasm, pleasure rocking her body and briefly making her eyes roll back – ragged, gasping breaths joined by a bit of drool going down her lips, her mind absent for a blissful few moments as she was fucked mid-orgasm. An orgasm elevated to new heights as the tentacles slammed in one final time, kissing the depths of her womb before delivering fresh buckets of black cum into her innermost parts, so much released she could faintly feel a bulge form in her groin – any discomfort overshadowed by the sheer, blinding pleasure corrupting her mind.

'S-So good...'

The dim thought lasted until the tentacles ceased their climax, and withdrew. Their absence let a deluge of cum overflow from her ploughed cunt and Shiori flinched as it leaked out, so thick and plentiful it was embarrassing to see. Her insides felt similarly tender and for a moment all Shiori could do was lay there and catch her breath, unable to muster the strength to resist as she came down from cloud nine.

Alas, that would've been her only chance to escape.

As less than a second later the tentacles binding her thighs pulled her in closer. For a second she didn't quite comprehend why, her mind still fuzzy with pleasure – but then she felt herself be sucked into the black void. Realisation dawned on her and with a yelp Shiori clutched onto the book, applying her own strength against the book as she tried to pry herself out.

Only to gasp as her lower half was seemingly pulled into the void, everything below her waist absorbed into the darkness. Mercifully she wasn't pulled in any further, her grip on the book just enough to stop the curse from dragging her in, but she could feel her lower half still despite it being in a different space. Her legs dangled and kicked helplessly, nothing within reach to push off of – left hanging in a presumably empty void dripping cum.

''Nn...! C'mon...!'' Shiori grimaced, pushing against the book valiantly.

Only to freeze as something tickled her foot. She jerked her leg away but bumped it against another, and then another – her face paling as she felt more and more tentacles emerge from below. Terrifyingly she couldn't see anything, the abyss around her waist showing nothing of what laid on the other side – but her sense of touch didn't betray her. It let her feel the numerous tentacles pry her boots off and rip her socks apart, some tentacles having teeth and others sucker-like mouths, the latter pulling and ripping her dress apart until everything below her waist was exposed.

Allowing her to feel the tentacles even more intimately. She gasped as one ran up the back of her thigh, whimpered as another tangled between her toes and flinched as one rubbed her butt, their caressing touches sticky and leaving her panting hard. Then as if finally done teasing her another tentacle slapped itself against her pussy; pressing in and stroking her slowly only to repeat the motion, stimulating her with the countless little buds on its length, rubbing and pressing against her pussy pleasurably.

Before it too left, leaving her wet and needy, her mind torn between panic and pleasure.

The former returned though as another tentacle introduced itself, pressing itself against her lips. It was big. Very, very big. So much so she froze for a second in fright, wondering if she was misjudging it somehow – and then it started to push in. Alarm gave way to panic and panic to frenzy; a flurry of hurried, nonsensical pleas escaping the archiver as she kicked her legs and tried to get away from the tentacle – deeply, intimately feeling it push in, the utmost tip entering her-

And then in a single firm push, penetrated her. Shiori yelped, eyes bulging as her groin countlessly did the same – the tentacle thick but naturally lubed as it forced its way deeper into her womanhood, lifting her up slightly due to how girthy it was. Yet the impossible nature of the tentacles allowed itself to squeeze inside of her, stretching her walls apart to their limit and nearly breaking her in two as it slowly, systematically filled her pussy inch by inch.

''Oh god, oh god, oh fri- fuck, fuck fuck fuck fuck...!'' Shiori stammered out, shaking her head in blind panic. ''I'm sorry, I'll leave you be just take it out take it out take it o-out~!''

Her pitched cry was met with naught but the squelch of the tentacle entering her deeper – and she gasped as it reached her cervix. Yet to her horror it didn't stop but just pressed in more, dilating her cervix through unknown means just so it could squish itself into her very womb, bulging her groin with the intrusion. It felt like she might burst, like her hips would break from being stretched open so inhumanly wide, her mind fractured not by pain but the absurd pleasure that jolted through her nerves, the discomfort she felt only adding to the painful pleasure.

Then it withdrew, escaping her cervix.

Just to slam right back in, hilting her in her womb.

''OH FUCK!'' Shiori swore sharply, hunching over the book. ''It's too big!''

Another slam answered her and she squealed, eyes wide but unseeing as the equally-unseen tentacle began to fuck her – slow, patient thrusts that nonetheless mushed her insides and stretched her open beyond belief. The other tentacles weren't idle either she realised, a moan forced out of her as one stroked her clit and another rubbed her ass, its caressing touch soon morphing into something much more devious, its tip resting against her asshole.

And then inevitably it plunged inside, fucking a moan out of Shiori. Her moan jolted into a squeal as a second and then a third tentacle joined it; all three spiralling around one another and joining forces to plough her defenceless ass, the tentacles thrusting in even deeper than the last one and frying her mind. A task made all the easier as her pussy was overfilled with mystical tentacle, her insides afire in the best way possible.

'It's too much.' Her grip on the book wavered and she was pulled deeper into the darkness, her breasts just barely above the abyssal waterline. 'I-I can't... I gotta get free-'

A thought interrupted as girthy tentacle filled her womanhood, fucking another senseless wail out of the esteemed archiver – mind fucked into pieces. She panted for breath but could barely fill her lungs for a second as another thrust fucked it out of her, her breathing only hastening as the girthy tentacle did the same – its patience waning as it began to move as fast as its brethren, pumping itself into her despite its girth and churning her insides up like butter, her womb battered and pummelled by its bulbous tip.

Her grip weakened further and she fell down up to her neck, head above water but her dress quickly savaged – ripped apart by tentacles and allowing her boobs to be squeezed, the encircling tentacles quick to squeeze her large tits. She moaned feebly, voice cracking as two mouth tentacles attached themselves to her nipples and assaulted them with thousands of tinier tentacles, the stimulation making her toes curl and head shake, yet not stopping them in the slightest.

'Get it together, it's... no, ah... no no you gotta, ah, think...!'

Her pussy was filled again and her ass was stuffed, both holes so stretched it was maddening – pushing her to the brink of orgasm-!

Then the thick tentacle sped up. She opened her mouth but no noise escaped – a silent scream ripping through the air as she was fucked. Raw and mercilessly fucked, her womb pounded like mochi as the thick tentacle had its way with her, stretching her wide and bringing her to the brink-!

When an eruption happened inside of her. Literal buckets of cum shot inside of her with such force she flinched, eyes bulging and ultimately rolling back as her orgasm took her – her strangling insides milking the giant tentacle for all the semen it could give her, as bucket loads of inky cum filled her womb and overflowed out of her, her asshole similarly pumped full of semen and her naked self covered in the stuff as the surrounding tentacles ejaculated too.

All of it was too much, too intense.

And with a final, senseless moan Shiori slipped beneath the inky lake – allowing the book to slam shut, laying innocently on the floor.

Waiting for its next victim, even as Shiori's carnal cries faintly echoed from its pages.

Her pleasure, eternal.

[END]