Chapter Text
He kept you hidden away, somewhere the others wouldn’t dare to stoop.
You didn’t know why it had to be you, the cryptid didn’t need a reason- he had no one to answer to except himself. He kept good care of you, always making sure you were attended to- but that also meant you had to repay him for his ‘kindness’.
His personal use, tucked away in the cellar of the basement, the only entrance from the backside of the mansion. Your wrists were worn, and red with irritation from the handcuffs that sliced into your skin. You were hooked onto an old drain pipe, your arms hanging in an uncomfortable position. The concrete of the floor hurt, legs bruised and worn, weak with the lack of good food or movement. You felt so weak all of the time, but that was exactly how he wanted you- pliable and useful.
The rumbling of the cellar door opening was always the first thing you heard—it didn’t matter if you were dead asleep or throwing up from nausea—that noise had you sitting up perfectly straight in seconds. Like a dog to a bone, you were always eager to please.
His loud footsteps come thumping down the old stairs, creaking from the weight until you felt your head pounding with that irritable static. It was the feeling of your brain weighing in on itself, waves of nausea sinking in, and having to close your eyes from the dizziness. It was always his signature, no matter where you were you would know he was near, and the proxies testified to it themselves.
You sat up, digging your knees into the cold floor, trying your best to ignore the sting as you dared your eyes to the doorway. Slenderman pushed through, dipping his head low to avoid the banister, before standing with such presence before you. You kept your eyes low, quick glances at his dress shoes that planted themselves inches away from your knees.
“Stand.” It wasn’t a spoken word, you still weren’t even sure how you ever heard him in the first place, his mouth never moving behind that icy veil of skin. The noise bounced in your mind, pressing against the back of your neck as you climbed onto your feet, the socks doing little to save you from the cold.
You still refused to look at his face, head hanging as tentacles slowly coiled around your ankles, winding their way up your shaky legs. Your heart pounds in your chest as you hear the low cracking and controting of his muscles, long, grotesque tentacles writhe their way out, push out behind him like obscured angel wings. He held such a presence, a terrifying one, but electrifying nonetheless.
You heard the small jingle of the key unlocking the handcuffs, your wrists flexing out of the metal as you rubbed them, arms whining from being released from that contorting position.
His cold tentacles moved quickly, pushing your grimy tank top over your head and shimmying down your shorts, skin freckling with goosebumps at the damp air of the cold basement. The tendons drew you closer, grappling at your back to push you against him, a claw resting on your waist as you pressed your hands against him.
Even this close, he still towered, having to look up to even see the muscles contort and strain behind that smooth skin, a stern look on his face.
“Go on, little thing.” He nudges in your mind, tentacles curiously curling around your thighs and around your waist, rubbing and prodding against your bare skin. It made you shudder, giving him an understanding glance as you reached your anxious hands out.
Fidgeting with the button of his slacks, you could already see it- the outline of his cock pressed firm against the top of his thigh, twitching gently when you tugged the zipper down. You could feel your heart thumping, breathing caught in your throat when a tentacle pushed your hand out of the way, reaching in and tugging himself out, length so heavy and long- terrifyingly so. He was big. Ridiculously.Gaudy with thick veins running down the side, glistening with precum.
You waited expectantly, hard to tear your eyes away as it twitched and throbbed, Slender’s expression unwavering as he stared down at you.
The dark tendrils moved again, this time with intent. They pressed between your shoulder blades, between the plush of your thighs, and rounding the underside of your tits- curious little things pushing themselves wherever they could.
It was the sudden push forward that had you off guard, a silent chuckle from the cryptid towering above when you gripped onto his suit. Was it terrifying that you were eye-level with his waist, yes. But Slender couldn’t get enough of it.
“Open up. C’mon now- don’t pretend like you don’t know what to do.” This time you did hear his voice in your ears, jaw straining to speak as you glanced up at him, nervously picking at your hands. You nodded, a deep wave of heat flooding your face, the static behind your eyes ever present.
Saliva builds on your tongue, spreading your pretty lips as you watch the tentacle gripped around his base nudge up, holding his tip to your mouth. You feel his intense gaze on you as your mouth wraps around his thick head, inching down slowly, and stretching your lips obscenely. You’ve done this dozens of times, the soreness in your jaw a reminder of that, but it doesn’t make the task any easier.
“As far as you can… There you go.” He coaxes, the tentacles slithering up to wrap around your throat, tips of the tendrils pressing against your jaw. Your tongue presses hard against the underside, eyes fluttering shut as you feel like you already can’t breathe. It’s so overwhelming, hands moving to grip against his hips- until those dark tendrils are wrapping around and hauling them behind you, gripped tightly together on your lower back.
It’s hard not to groan, your throat tensing as you try not to gag, the heavy weight of his tip pulsing against your tongue. Eyes tensed shut, you take a shaky breath, glancing up at him through tear-glistened eyelashes.
That’s what does it. He loves when you act like you want it.
With a static groan, his hips thrust forward, your eyes widening with the rush. He pushes his cock down your throat, bulbous veins throbbing against the roof of your mouth as he a steady, merciless pace fucking your mouth, your weight shifting uncomfortably as you stand. The tentacles wrap around your throat, tightening themselves as he pushes deeper, tip bobbing mercilessly against the tightness.
You’re gagging, the loss of air making you dizzy. Grip searing on your neck, Slender groans and huffs as he fucks your face till his cockhead hits your poor, abused throat. His claws move to cup the sides of your face, moving you in time with his hips, seeing just how far in he can get himself before your eyes roll back. You could nearly feel the electricity crackling in the air, the pressure against your mind so overwhelming- you felt your body go limp, exhaustion heavy as the tendrils wrapped themselves tight, holding you up.
“Don’t go passing out, little one. It’s no fun.” He hums, muscles clenched so tight as his claws pressing into your temples, shocks of nausea running through you.
It’s so messy how saliva builds on your lips, glistening in the dim light of the basement as they wrap tight around him. Saliva and precum drip down his length, dirtying the pants of his suit. Tears streak down your cheeks onto Slender’s wrists, cheeks so ruby red against his milky white skin. Pressure roars in your ears, choking at both the throbbing cock and the tentacles blocking your airway. You let your jaw go slack, loud gags and choking sounds fueling the cryptid to just go deeper.
It was so fucking messy.
You’re so easily broken, he thinks, unraveling the tentacle around his base and pressing it into the corner of your mouth. You can’t even register it, thick tendril pressing in with his cock to abuse your throat further, the stretch of your lips such a pretty sight.
“Such a talented mouth, you can almost take it all.” You can feel tears searing down your hot cheeks, thick droplets of spit dripping from your chin. It’s the taste of salty precum that shoots excitement through you, eyes flashing open to stare up at him, eyelids heavy with dizziness. His jaw is clenching, a snarl etched onto his face- his tell.
With as much strength as you can muster, you’re pressing your tongue on the bottom side of his cock, slurring the muscle across his gaudy veins with strangled moans. With an appreciative groan, the cryptid’s thrusts become erratic, movements growing frantic.
He doesn’t like to show you how much he wants to cum, but you’re always able to coax it out of him. You’re his, he deemed it so, and in turn- you’ve learned when he’s about to fall apart.
You rub your thighs together desperately, relaxing your throat more, refusing to let the darkness creeping into the corners of your eyes win. The tentacles are sporadic, flicking and gripping against your skin, their own extent a reflection of Slender’s state. You let your eyes close again, weak body so ready. “Hn- There we go-”
His tight grip on the sides of your head pushes you back, pulling you off his cock. Your lips pop free, leaving his sensitive head exposed to the cool air. Gasping for breath, your chest heaves as you try to regain your composure, your throat so sore and raw you don’t know if you’ll be able to eat.
The tentacle wraps around the base again, long, hefty strokes as you pant. It doesn’t take one beat of your pretty eyelashes before thick, warm stripes of seed paint onto your cheeks, Slender snarling above you as he presses the divot of his tip against your lips. You let your tongue snake out, the salty taste melting against your tastebuds.
Pure pride swells at the sight, Slender tangling his claw into the back of your hair, gripping the strands as he bends down. You tense, heart beating so fast as you hear the cracking and tearing of his skin.
By the time he's at face level with you, his blank face has separated at the mouth, jagged skin forming a terrifying smile. His long tongue comes snaking out, the wet muscle pressing against your cheeks, lapping at his own finish.
“Let’s see how much this can take next, alright?” You shudder at the tentacle that swipes between your folds, glistening with the wetness of your cunt. You can’t respond, he doesn’t let you when that tongue is bullying its way into your mouth, pressing on the sore spot at the back of your throat.
At least it gets you out of those damn handcuffs.