Monster's Pet
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Tentacle week: Day 1. The elevator
🕑 Added 2025-04-14 14:30:05 +0000 UTCA/N: FIRST TENTACLE WEEK STORY YAAAAAAAAAY!
Shadow monster x fem!reader || oral sex, double penetration, tentacles, size difference going brr, (light) dom/sub dynamic (femdom)
You get in the elevator with the shadow monster from the IT department. You’ve seen him a couple times already, and you have noticed… He looks so good with his way-too-tall body and shadow tentacles always moving and twitching as if he was a scared mouse. He makes you feel feral and you’ve only interacted a couple times. Good goddess if you don’t want to interact a lot more… It’s very hard to try to ask him out, you’ve seen him out of the office a total of three times, one of them being right now.
You look at him across the elevator, his back plastered against the opposite side as he tries to look anywhere but your direction. There’s a faint shade of pink on his dark skin and you want to coo at him. You clear your throat to talk right as the elevator makes a weird noise and stops, the lights go out completely and wash the two of you in darkness.
“Ugh, great,” you complain. You hear the little whimper before you realize it comes from him. “Are you okay?” You ask, not moving in case you step over one of his tentacles or something. You aren’t sure how physical they are or if you can even touch them, you’ve never gotten to ask.
He exhales a slow, ragged breath. “I’m… I’m not the best with darkness,” he responds in the tiniest mumble possible. Your human ears almost don’t catch it, but everything is so quiet...
You look in the direction you last saw him, confused and a bit alarmed. “What? You’re a shadow monster!” You didn’t intend for it to sound as judgmental as it did, but you couldn't hold back your shock.
He continues his shaky breathing and you can hear the way it’s accelerating. “There needs to be light to create shadows, total darkness freaks me out,” his confession makes you want to coddle him again. He can’t be any more adorable, because if he is, you’ll need to stick your hand in his pants and jerk him off every time he’s cute again and that wouldn’t be cool with Human and Monster Resources (HMR for short).
But your HMR concerns dissipate as soon as he starts to breathe harder, louder, as if he’s hyperventilating. “Shit. Shit. Are you panicking?” You ask, a little freaked out yourself. You don’t know much about shadow monsters, what if something weird happens to him?
“Yes. Fuck. A little.” You can feel him trying to remain calm and collected, but his breathing is still fast and you don’t really know what to do to stop somebody from having a panic attack. You don’t even know how to act when somebody is having a breakdown. Shit.
You blurt out the first thing that comes to mind: “Would a hug help?”
His voice is choked when he lets out a rushed: “Yes.”
You cross the little space, hands outstretched until you feel the fabric of his shirt against your hands. You grab onto it and pull him towards you, wrapping your hands around him and feeling the way his tentacles move to make space for you. You press your head to his chest, where his heart is beating a bit too fast, but the second his arms and tentacles wrap around your body he seems to relax a little. He’s grabbing onto you like an octopus and you can’t seem to mind it. HMR be damned, you are enjoying yourself a little.
You squeeze his body a bit more, his breathing calming as you ask: “Is this helping?” You feel his head resting atop yours, the height difference making your insides go brr.
“Yes,” he lets out in a calmer breath. You congratulate yourself internally from stopping what could have been a lot worse. “A little too well,” he adds in a whisper that you weren’t supposed to hear.
“What do you mean?” Your voice sounds muffled against his shirt as you move.
“I... I’m sorry,” he sounds embarrassed and you realize a bit too late that the thing pressing against your stomach is not his phone, but his very hard dick. “Fuck, this is so embarrassing.” He sounds miserable about it, and you want to coo at him so bad you may die if you don’t.
“I think it’s kind of cute,” you let out with the biggest smile possible, closing the distance once again and pressing against his chest, your body flush against his. You move your hips a little, feeling his hardness against your stomach and humming approvingly. You’re pretty sure somewhere HMR just sneezed or something.
“What? You do?” His voice sounds strangled and you want to laugh. He’s so fucking adorable.
A metallic voice breaks the tension building in the air: “There’s been an electrical problem in the building, are you okay in there? It seems like it’ll be a while before we can open the elevator, do we need to get you out?” The emergency light turns on and he lets out a relieved huff.
“We’re okay,” you let out, your eyes not leaving the shadow monster in front of you. His face is illuminated by the red light that casts shadows over his eyebrows. He’s currently squirming and looking so adorable that you just want to get on your knees and suck him dry.
“Okay, we’ll let you know when we can get you off.” You bite your lip to stop the giggle from escaping. What an awful choice of words.
“Okay, we’ll be waiting till you get us off…” You repeat, licking your lips at the second part of the sentence, staring directly at his dick and watching him take a huge breath in, his dick visibly twitching at the same time his tentacles dance behind his back. “Or I can get you off,” you tell him, your neck arched to be able to look at his face. His eyes are so big it’s almost comical.
“Wha- what?” He stutters. You don’t avoid your cooing anymore, letting out a soft sound as you touch his face.
“Come on, you heard me. Do you want me to help you get distracted?” You smirk up at him, a bit breathless at the possibilities ahead of you. It’s not a big elevator, but with all those tentacles… You can still have a lot of fun.
He looks so surprised that you can't avoid letting out a giggle as he asks: “Are you for real?”
You realize in that moment that he might think you’re in it just for the sex. “I mean, I was planning to ask you out on a date, but you just look so cute…” you clarify. Sure, you want his tentacles (good goddess do you want them…), but you also think he’s really cute and you’d love to have a date with him.
Firstly, though: dick.
“Ye- yes. Fuck, yes.” He rasps, biting down on his lip with a fang. Fuck, that’s hot.
You slip into a more confident and commanding tone in a half a second. “On your knees, pretty boy.”
He drops so fast you’re almost concerned he may have hurt his legs in the process. “Are you going to be a good boy for me?” you question. He nods, his eyes glassy and dreamy already. “Push my skirt up and show me how much you crave my pussy, then.”
He doesn't have to be told twice. He pulls your skirt up, pulling it around your waist as you open your legs enough for him to nuzzle your lacy panties. He inhales deeply, letting out a sinful moan before his tongue darts out to lick you over the fabric.
“Fuck, you taste like cherries,” he rasps, and you almost laugh at that. Your pussy doesn't taste like cherries, but you’re okay with whatever he wants to say since he’s pulling your panties to the side and licking a long stripe along your lips, leaving you breathless.
You like that he wanted to take his time. Unfortunately, you also knew the two of you were working against the clock and that soon there would be technicians opening that elevator door. You want to be already thoroughly fucked by the time that door is open.
“Take them off and fuck me properly, come on, come on, come on…” You urge. He looks up at you with reverence in his eyes, almost like he can’t believe this is real. You grab his hair, pulling at it. “Give me your cock,” it sounds like an order, and he takes it as such.
He lowers his pants enough to get his cock free, fisting it a couple times as you watch, your mouth salivating at the sight. You want so badly to take him in your mouth, but you don’t have the time. Fuck. You’ll have to take a rain check on that one.
“Are you going to show me what that dick can do?” You ask with a teasing smile, your nails caressing his lower abdomen, making him shiver violently.
“Yes. Yes. Yes,” he chants. He sounds like a hyperactive puppy and you want to pat his head but you contain yourself, or more like he distracts you from it. He adjusts himself so his dick is against your warm opening and his tentacles are touching every part of your body at once. It’s overwhelming in the best way possible.
He pushes inside of you slowly, so very slowly, and you grab onto his hair until he whimpers. His sounds and slow pace make you moan in turn, rotating your hips to make him go faster. He catches up instantly, pushing inside of you in one long thrust that makes you gasp as he groans your name.
He lets out a pathetic sound and you feel him shooting his load inside of you. “Did you just come, pretty boy?”
“Shit, sorry. You just feel so good, so warm and tight…” You want to kiss him senseless. “But I can… I can keep going,” he says with a few shallow thrusts. He gets louder like that, thrusting in and out, overstimulation probably making him more desperate.
“You sound so sweet, such a good boy for me,” you praise and he preens, going harder and faster.
“Yes. Yes. I’m a good boy.” He says between thrusts. His words mean nothing at this point, but he feels so good inside of you, his ridged cock hitting you perfectly as he curses over and over. “Fuck, yes…”
You’re on the edge when you whisper against his ear: “Don’t your tentacles want to play, too?” You’re yearning for destruction and he’s perfect to give you exactly that.
“Fuck, can they? Can I?” He sounds desperate and you love it. You crave how hungry he is for you.
“Yes,” you mumble against his neck, biting down softly and making him groan like a whore. Good goddess, you love loud men- or in this case, loud monsters.
The tip of one of his shadow tentacles rubs against your asshole, making you shiver in anticipation. You feel a cool slippery substance being spread along your ring, and you realize a second later than it’s his come. He’s using his first load to prepare your asshole. Fuck, why is that so damn hot?
He teases your asshole with his tentacle a bit more, but when your nails press against his scalp he gets the memo and starts pushing in. You groan as he whimpers, mumbling sweet nothings against your hair as he keeps fucking you.
By the time both of your holes are filled to the brim your head is thrown back and you’re crying out so loud you’re pretty sure half the building knows what’s happening, but you don’t even care. The tentacle in your ass feels phenomenal, his dick is magnificent, and the sucker that latches onto your clit is downright sending you into oblivion.
You don’t have time to warn him before you start pulling at his hair as you come with his name on your lips, rocking your hips to milk every little bit of pleasure out of him as he groans your name, filling you completely. The second load makes you feel all sticky and gross, but in a way… it makes you feel powerful and hot, too.
He pulls back with a self-satisfied smile and sits back against the opposite wall, his dick and tentacles still wet and shiny under the red emergency lights. You’re gazing at him when he does something with his arm that has you swallowing back your laughter. “Did you just fist-bump the air?”
“No,” he rapidly denies, but you’re smirking as his shadowy face blooms with red undertones- certainly not just from the emergency lighting, either.
“We’re going to have so much fun, pretty boy…” You tease as you pull your panties up and help him to his feet, kissing his lips until he’s whimpering.
Not two seconds later the door of the elevator opens to reveal you looking completely fucked. He looks very, supremely embarrassed and you find yourself internally swearing yet again that he’s just too damn adorable.
