Once upon a time, a woman fell in love with a man that she thought was actually a man. Turns out, fucker was a shape shifter, and not just any shape shifter, but a chaos monster. Fast forward a few hundred years, and one Stiles Stilinski is minding his own damned business, helping his pack defeat an (the? He doesn't know, he just knows they're assholes) alpha pack, when this witch starts laughing at him. And suddenly he has tentacles. In which Stiles discovers he's actually a baby chaos monster, sprouts tentacles, and then has to spend an indefinite amount of time with one rather surly alpha werewolf, learning how to control his form, defeat an alpha pack, and navigate the perils of loving someone who's kind of afraid to be loved. All while sporting tentacles that have a mind of their own. Easy, right?

Mako still gives you tentacles. And how.

As the base's resident expert on human culture, Sam had fumbled his way through some pretty awkward conversations, but even he didn't feel up to tackling the questions Bee would have once he learned that his best friend had somehow developed a fetish for alien robots.

It starts with a dare, and ends with sex, and really, humans may be lacking in some ways but they more than make up for it in others.

On an exploration mission to Elissinar IV, Kirk talks Sulu into letting Dirandae, one of the President's aides, take them back to her room to "look at a plant". It turns out the Elissinar have entirely different sexual organs from Terrans. Hey, exploration missions can be fun!

It’s not like he lives his entire life with his bottom half a writhing mass of tentacles instead of legs, but about every ten days he has to spend at least eight hours soaking in a tub of water.

With one action, an overwhelmed Cloud Strife changes the course of history in Nibelheim. It doesn't really get better for him.

A tiny green tendril curls softly around his wrist where it's resting against the wood. Stiles takes shallow breaths, trying not to move or get too excited, but—it's working, he thinks. This is going to work

Tony Stark is all about the advancement of science, but...he probably should have clued Steve in a little sooner. Steve just thinks it's a bad idea to volunteer for anything that involves Reed Richards.

It's three hours before JARVIS tells Steve that Tony is ready.

If there is one thing that dating Tony has taught Steve, it's that sometimes you have to go with the flow.

Stiles gets friendly with a Tentacle Monster.

Clint has unusual fantasies; Tony has unusual abilities. This works out in everyone's favor. (Alternately: "Consentacles!")

Steve's not sure where he is, or how he got there, or why there's a tentacle there, but at least he's having fun.

In which Derek finds Stiles in a compromising position.

The night takes an unexpected turn when Stiles summons Derek to the greenhouse.

“A few weeks ago I would have thought you were impossible,” Sherlock begins, walking into the kitchen in his blue robe, and John – not quite catching on – wants to scoff and argue, No, actually, you are impossible, but then Sherlock continues: “But now I’d say you are improbable.” John thinks this might be flattering, if he could wrap his head around it, but he can’t – Sherlock is standing near, steaming his sun-baked-clean-sand smell, like the beach after rain, an alive smell, an other smell. It’s intoxicating, and John has been studiously avoiding it, but he can’t shift away now it’s so near. Now Sherlock’s so near. And then Sherlock ruins the probable-loveliness of his words and the definite-beauty of his presence by saying: “And by ‘improbable’ I mean ‘not yet scientifically acknowledged.’”

My MCU fanart. And to challenge myself, I'm writing a ficlet to go with every single piece.

Sollux is invited to 'tentacle night' by his kismesis Roxy. He's a little confused when she shows up with more tentacles than him.

So this story is about the time I fucked up— [ONE of the times you fucked up] —and pissed off Shiklah, my wife. She decided to punish me with the help of a couple of her henchdemons, and kinky fun was had by all.

Midoriya Izuku was born with a quirk: the ability to summon and bind demons from an alternate plane to do his bidding. With only a few days left until the UA entrance exam and still no offensive-type demons in his arsenal, Izuku makes a desperate attempt at summoning one corporeal, a feat he had never before attempted. He'd say it was a success but, he doesn't actually know if it'll be more a help or a hindrance. Especially since Bakugou Katsuki is, well, kind of a shit.

Allura is acting a little strange. Shiro is asked to help, and he accepts enthusiastically.

His arm wasn't the only thing the Galra changed. They also gave him certain... needs. Shiro learns to make it work for him.

To get to the pollen the team needs, someone has to appease the plant guardian. Shiro steps up.

Tentacle Gods: do not mix with Hydra.

After the end of S1, Shiro wakes up in an alternate universe where he pledged allegiance to the Empire.

Venom indulges Eddie's weirder kinks.

When Venom was quiet, and when he wasn’t shooting giant fucking tentacles out of Eddie’s body, Eddie couldn’t much feel his presence. Occasionally there was a flicker of something: of anger, of hunger. Right now there was nothing. So maybe Eddie had pissed him off. Or—and this was a thought that Eddie had not had before—perhaps he had hurt Venom’s feelings. He lay there, staring at the ceiling and listening to the couple banging next door. She was making a lot of noise. The blood came up his neck and face a little. And then a little more, now he knew that Venom would be able to feel it too.

or, why Eddie Brock can never return to his favorite coffee shop

Eddie briefly recalls some tentacle porn he’d watched just before Venom became a part of him. The copious vines holding her up and entering her every opening simultaneously. Fluids, from her or the monster who could tell, leaking from her mouth and pussy and ass. Oh, Eddie. Venom’s thought shook him, definitely not wanting to take their tongue out his mouth, How’d you keep this from us? Eddie had to be completely honest… he had absolutely no idea how he did either. ~ That good good tentacle fuckin' that Eddie so desperately wanted.

Venom had a plan to win Anne back. Eddie vetoed that plan, because it mostly consisted of eating off Dan’s head, which Eddie did not approve of for a number of reasons. The most obvious one was that Dan was a good person who did not deserve to become a snack for the monstrous alien living in Eddie’s body. The one most relevant when considering Venom’s mostly non-existent morality was that Anne would probably not be very happy with them if they bit off her boyfriend’s head. And the final reason, the one that Eddie really hated to admit, was that he kind of really liked Dan.

Eddie is lonely, but he doesn't have to be.

This might as well happen, right? Get possessed by an alien parasite, save the world, get fucked by an alien parasite… it’s all in the same vein. It’s not like this is any more fucked up than the rest of it.

The cellular union of Eddie Brock and Venom is not without consequences. Alternatively, Eddie goes into heat (or some alien equivalent of it). It's Venom's fault. "The need unfurls inside of him—doubled but easier to bear now that it is shared. He understands what must be done, has always known. It is as basic and primitive as breathing."

As soon Klaus realize he can make Ben solid again, Ben start to wonder about some of the experiences he never got to have alive.

Anne and Dan want to help Eddie and Venom find a new source of phenethylamine. Did you know it’s produced by a bacterium commonly found in human genitals? That’s a FACT.

Things Eddie Brock flirts with on a regular basis: death, insanity, his ex, his ex’s new boyfriend, and also the alien symbiote that lives inside his body. Not bad for a loser with no game, really.

You can find some interesting things in those old, abandoned thaigs... ******* As a general warning: it's all 100% consensual, but there isn't a whole lot of negotiation on specific acts ahead of time, and there are a few (quickly corrected) mis-steps. Nobody gets hurt, or even actually upset, but I know that's a sensitive issue for some.

When a routine hunt goes wrong, Gladio finds himself only half the man he used to be. But Prompto doesn't seem to mind. He knows all about how to handle this kind of situation. (Or, Prompto watches too much hentai and never lets an opportunity go to waste)

it's unlike anything, when you're lovin' me

Lan Zhan looked too old, sometimes, staring into the blinding sun of dawn. He looked like he had gone somewhere Wei Wuxian couldn’t follow, beyond the scope of the horizon. Resentful energy swirled black and terrible at that thought, and Wei Wuxian laughed it to shattering pieces. Lan Zhan had stayed, but that didn’t mean he would forever.

While the Asset is in the middle of an experimentation session with the Chem Sci department, an emergency happens in another lab. One of the other experimental creatures escaped its containment cell and the Asset is ordered to go take care of it. He's hosed off, plugged up, geared up, and sent upstairs post-haste to deal with the problem. Unfortunately, the Asset is still flush with drugs that make him incredibly aroused. When the escaped creature notices, he takes an interest. Much to the Asset's delight.

The first time Eddie suggests they have sex, Venom is, more than anything else, extremely confused.

What if, instead of Lan Yi, there’s this tentacle monster hiding in the cold pond cave of Cloud Recesses, guarding the Yin iron? What’s the secret Lwj has been hiding from him? Wwx is determined to find out!

The tentacle climbs up Lan Wangji's forearm and tugs him closer. This time it's his turn to shiver. The feeling is — like nothing he's experienced. Cool and slippery, strong but not the strength of muscles. Soft. He wants to feel it all over. (Wei Wuxian accidentally gets cursed, which results in an impromptu sex vacation. It goes great for everyone involved.)

The resentful energy occupying Wei Wuxian's body like an enemy army is very interested in giving him Lan Wangji, tied up with a bow. Wei Wuxian is hoping that Lan Wangji (who is far too noble and very keen to save Wei Wuxian's misguided soul) doesn't find out about any aspect of that.

A very specific part of Jin Ling's Yunmeng Jiang heritage makes itself known when he comes of age. His friends help him out.

Saving people, hunting things: the family business. Modern AU: the Nies are hit by a demon's death curse, which is NOT fuck or die - it's fuck AND die, a kind of reverse cultivation curse that's usually directed against cultivation partners, destroying their golden cores little by little every time they fuck. NOT a clever curse to use against brothers! ...except that the curse comes with a chaser: its targets share blisteringly horny sex dreams every night, as a way of encouraging them to go ahead and give in to the whole fuck-and-die schtick. Awkward. So it makes sense to search for a cure to the curse, right? Especially since the cure might actually help stabilise Mingjue's golden core. Obviously they have no intention of actually boning once they've got rid of the whole fuck-and-die curse... (...for the life of me I can't remember who suggested a Fuck AND Die trope on Twitter many weeks ago - evidently it has been living rent free in the back of my head ever since, though, and so here we have some Niecest.)

Sure, getting fucked by tentacles was a rare, once in two lifetimes kind of experience. But honestly, once you went demon dick there's no going back. OR Shang Qinghua (and Shen Qingqiu) gets tentacle-fucked but Shang Qinghua is still helplessly horny for a certain ice demon.

Edgar has wanted to be a member of the Choir since he first learned of its existence, and he finds himself inducted into its ranks in the most unusual of ceremonies.