Good monster

A/N: Tried a mix of requests together because all of them had tentacles in common, don’t know if I did a good job, it was fun to write. Enjoy!

Tentacle-monster x fem!reader || dom/sub (femdom), overstimulation, tentacles, double penetration (in the same hole), praise kink (light)

When the tentacle monster gave you your voice back to meet the prince, you were more than happy to get out of there fast. You didn’t think twice about why he did it, or why he would look so sad when you ran away from his cave. But you did it anyway.

And regretted it.

The prince was not only awful, but life at the palace was hell. You wanted to go back as soon as you two spoke twice, but you promised you’d be there for a while, you promised you’d make it work if you got your voice back. But the tentacle monster knew better than you did, he knew so much better. So when he showed up at the castle and eradicated every single one of the stupid royals who made your life living hell, you could only be grateful.

He took you back to his cave, and you stared at him for a long while before you were able to form words. “Are you going to take my voice away?” You asked him. You would gladly give it back if it meant not going back to those awful royals.

He sighed, as if your word pained him, his tentacles moving around his body. It was mesmerizing. “No, little human, it’s all yours to enjoy. A gift if you may.” He said and urged you to leave.

You didn’t fight him, but you regretted that, too. You regretted the pain in his eyes and the way he stared at you even when you were far away. You regretted so many things about him, but when you decided to go back and talk to him, he was gone. You didn’t see him again for a loooooong time.

And time passed. And you missed him in a way that made no sense but all the sense at the same time. He was like an old wound that hurt every time the weather changed. And you didn’t know anything else about him to find him, you made peace with that.

Until you were hired for a new human-monster experiment. (And maybe you only wanted to be fucked by a bunch of monsters until you couldn’t walk straight, that sounded like a great evening in your books.)

You were supposed to be fit into a hole, your lower half exposed to the air and ready to be fucked by as many monsters as they came. But that wasn’t what happened.

You were tied to the hole and completely naked when you heard the soft rustle of tentacles against the floor, your whole body trembling in anticipation as you heard someone behind you. Tentacles were one of your biggest fantasies, images of him flashing behind your eyes, anticipation and desperation mixing inside of you. You parted your legs a bit further, trying to look as enticing as possible to the monster behind you.

But they didn’t touch you. And after what felt like an eternity but was probably only a couple minutes, you asked: “Is something wrong?” You looked back, trying to peek through the hole but unable to do so.

“I- I don’t… I don’t know how to do this,” he confessed in a short breath. He sounded nervous and something inside of you stirred.

“What do you mean?” You questioned, your hand already pressing the button that unlocked your restrains.

“I’ve never fucked a human,” he let out, almost embarrassed.

You struggled out of the hole and turned around, you knew it was against the rules but you didn’t care. The monster was clearly having a hard time and you weren’t heartless. But when you were finally out and turned around your heart skipped a beat and you let out a gasp.

“You!” You both said in unison, looking at each other with utter surprise. “How? What? How”

Your stupor was short lived when a mechanical voice sounded over your heads: “Experiment over, move to the individual rooms.” You followed after him, grabbing a robe that was hanging next to the door. Your brain was swimming with a thousand possibilities.

“What happens now?” You asked to the researcher waiting outside the door.

“We detected abnormalities in your compatibility results, you need to be isolated and studied together. Follow me.” They lead you through the corridors until they open a door at the end of a hallway.

Your tentacle monster enters before you. “What are we supposed to do here?” He asked the researcher once you were in a cozy room that looked like an expensive hotel more than a lab.

“You fuck. We watch. Enjoy.” And they left, leaving both of you there, staring at each other with confused expressions.

“So… Do you want to…” He started, looking at you intently.

“YES,” you answered a little too fast and a little too loudly. He looks a bit dejected by your enthusiasm, and then you remember what he said earlier, at the glory hole. “Do you want me to take charge?” You questioned, all serious.

You wanted to be the one being fucked into oblivion and used like a fleshlight, but if your tentacle monster wants to be dominated you can totally do that. There’s more than enough time in the future for you two to play in other positions. In as many positions as your human body allows, actually.

“On the bed. Now.” You walked alongside him, and once he was looking at you pleadingly, you took pity on him and straddled his waist, his tentacles curling around your legs and middle. “Do all your tentacles feel the same?” He nodded. “Words,” you asked.

“Ye- yes,” he stuttered. You were rolling your hips slowly, spreading your juices over the tentacles trapped under you

“Yes, mistress,” you told him, falling back into your dom mode. He looked at you confused. “You have to say yes, mistress,” you explained.

“Yes, mistress,” he repeated.

“Good monster.” He blushed darker as you praised him, making you giggle as you caressed his chiseled chest. “Okay, so I’m going to tell you what we are going to do: I’m going to grind against the suckers of your tentacles and you are going to stay really still until I come once. Then, if you have been good, I’ll let you fuck me. You like that?”

“Yes, mistress.”

You ground against his suckers just as he said, your pussy was already so wet it made obscene sounds against his slippery skin. But looking down at him, seeing how flushed he looked and how his eyes were rolling back into his head, you knew you weren’t the only one having fun. He was enjoying you playing with him, and the slippery texture he was oozing was making everything more intense. You could see his muscles bulging as he tried to remain as still as possible, his hands going up to grab your hips and stopping just in time, pressing them against the bed and squeezing.

You smiled down at him. “You like that, monster? You like the feel of my pussy against your tentacles?” He nodded vehemently, making you chuckle. “You are a dirty, dirty monster, aren’t you? You say you didn’t fuck a human before but here you are, acting like a slutty monster for me.” He whined. “They all think you are so powerful, but right now you don’t look like it. You look almost pathetic with your groans and whines, but, so, so pretty.” And it was true, he looked great all flushed and frustrated, the noises he was making were driving you insane.

The orgasm caught you out off guard, too focused on him to notice it sneaking up on you. You fell apart over him, your head thrown back and your back arching as you convulsed. It was a good orgasm, but your body craved more. You reached under you and grabbed one of his tentacles with enough strength to make him whine again, chuckling at him as you guided it to your dripping pussy.

“Now fuck me like you mean it,” you instructed.

He looked at you confused for a couple seconds before his hands were darting up and grabbing onto your hips. He moved your body and his tentacles around you, touching and caressing all parts of your skin possible, fucking in and out of your wet pussy. It was almost too much, he was everywhere and the suckers were latched to every sensitive part of your body. Your brain was turning fuzzy with pleasure.

This time you felt your orgasm arriving, and you had enough time to order: “Come for me. Now.” And he complied.

He fell apart under you, and you didn’t give him any peace, your own orgasm going and going over him as you rode him to oversensitivity. He was crying out your name and you were desperate for more.

You grabbed another tentacle and pressed it against your already stretched pussy. You pushed it alongside the one already in, the stretch so big you could barely keep yourself from screaming. But you made it, the second tentacle curling around the first, creating the most amazing textured dick you’ve ever fucked. You rolled your hips slowly until his second tentacle was fully inside of you, until he was a whimpery mess of oversensitivity under you.

You leaned down, your chest pressing against his as you fucked yourself on his tentacles. “Be a good monster and give me one more orgasm,” you whisper against his ear.

“I- I don’t know if I can, mistress,” he whimpered, his tentacles twitching inside of you as you bite your lip to hold back a moan.

“Now,” you ordered. And he complied like the good monster he was, screaming your name until his voice sounded rough.

At the end of the day, he gave you your voice back for the wrong reasons, but you took his away for the good ones. And this time neither of you regretted it.