#MERMAID AU!

[gemini-sensei]

Merman!Robby x Chubby!Reader

Human!Reader ○ NSFW/Smut ○ @sensei-venus

Request: can you do a mermaid robby with a plus-size reader smut please

CW: mermaid tentacle dick and anything that can entail (cervix poking/penetration, small mention of mating). Don't like, don't read. (unedited)

Robby's fingers dug into the sand as he held back a groan, pleasure jolting through him immensely. Once he thought he had his bearings together, he looked down at the beautiful human he'd chosen to call him. Their eyes met in the pale moon light and he lost it, groaning as he bucked his hips up to her mouth. Her tongue gently pushed into his slit, which felt amazing and had him groaning more.

She grabbed his hips and held them down as she lapped up some of the fluid that leaked from his slit. She then massaged her tongue over the opening a d he didn't know what he was going to do. If it felt this good just from her tongue, what was her pussy going to feel like?

His slit began to open up and his cock slowly started to slip out. The tapered tip wiggled, wetting the immediate area of his tail from which it came. Reader's tongue added to the slick as she licked and plays with his hole, her lips collecting a substantial amount of his fluids and making them shine under the full moon. When his dick starts seeking out her warm mouth, she pulled away and sat on her knees beside him, watching as the tentacle kept out from his tail and fully exposed itself to her.

It was long and slender, thickening up as it got closer to his tail. It wiggled and squirmed in the cool air, searching for a warm place to be. Reader put her hand out and wrapped her fingers around the base, giving Robby a small squeeze. He groaned and she starts gently pumping him, which was so easy thank to the clear slick it excreted to keep itself lubed up.

She didn't play with him for long, taking her wet hand and placing it between her legs to rub over her exposed folds. She was already wet from their play time and hearing his sounds kf pleasure, but she wanted to make sure she was ready for him. She spread her legs and leaned back, showing off her pussy from between her thick thighs and the way she fingered herself open with his slick.

Robby watched her, mesmerized as she sighed softly into the salty air. Behind her the ocean lapped at his tail and crashed gently. It was a relatively calm night on a secluded part of the beach. It was only him and her and the ocean.

He reached out for her and took her thigh into his hand. He squeezed it gently and she looked up, seeing a note of concern in his eyes.

"Are you sure you want to do this?" he asked sweetly.

Here he was, his dick out and needily searching for someone wet and warm to be, and he was asking her if she was sure about what they were about to do. Thus far, they had only pleased each other orally, but tonight that was about to change. They'd talked about it for weeks before now, but the moment was here and he was making sure she did truly want this with him. It warmed her heart.

Reader smiles, taking his hand into hers. Her pussy throbbed with the mere thought of taking the next step with him and it was dripping with arousal all for him. She nodded. "I'm sure."

"You know I can't... stop once we start," he told her, a little flustered. However, it quickly shifted as she smirked at him and his face bloomed red.

"I know," she told him. She gave his dick a few more pumps before giggling at how eagerly it wrapped around her wrist. Sometimes she was absolutely sure his anatomy had a mind of its own. "It quite excites me."

He gasps as she once again pulls away from him. He's sure she does it on purpose as some sort of teasing gesture, but he can't be certain. In any regard, he has little time to think about it as she leant over him and pressed her lips to his in a heavy kiss. Her tongue is quick to push into him mouth and twist with his, pulling moans from his chest he'd rather keep hidden.

Whilst he was distracted with her making out with him, he almost didn't feel her throw a leg over him and straddle his tail. She pulled away soon thereafter and steadied herself, which he helped by grabbing her hips and anchoring her to him.

She looked down at his squirming cock as it reached out toward her warm, voluptuous body. His hands slid up and over her waist, squeezing her rolls as he went to grope her fat tits. Once they were in his hands, he ran his thumbs over her nipples and squeezed the tender flesh. She moaned and let her head fall back for a moment. Then she felt the tip of his cock exploring her mound and beckoning her closer.

Carefully, she lifted herself off of him and moved closer to his cock. Once it found her wet folds, it did not leave. It rubbed over her slowly, inspecting the space between her legs thoroughly as it searched for her hole. It flicked her clit a few times, which made her weak in the knees and had her thighs trembling. Her nails almost sunk into Robby's shoulders as she held herself over him, mumbling small curses.

Then it finally found her opening and pushed in with reckless abandon. Once it felt the warmth of her cunt, it wanted nothing more than to be fully buried in it. It pushed on and she lowered herself slowly to meet it, inch by inch as it sunk into her depths. She moaned as it stretched her out and rubbed against all the right spots along her velvet walls. Next thing she knows, she's fully seated on his lap and the tip of his cock is pushing on the tight ring of her cervix. It doesn't wait for her to adjust to his size and just begins thrusts, pulling back but not pulling out, and Reader's eyes roll up.

From below her, Robby sees the pleasure on her face. The tight knit of her eyebrows, the way her jaw drops. She's moaning on top of him as loud as she can be, which it doesn't matter because they're all alone. He grunts lowly, still playing with her breasts as she swivels and rocks her hips against his. He felt every inch of her gummy walls as his cock thrust into her and hit those special spots inside of her that made her cry out for him so pretty.

Her hands stayed anchored to his chest, holding him down as she bounced on his thick, squirming cock, meeting its thrusts as she felt pure pleasure. The heat crept over her body as if they were sitting under the blistering sun instead of the cool moon. She breathed heavy, taking in as much of the chilly sea air as she could, but it wasn't enough. to cool her body and that was alright. She was too filled with utter pleasure to care about how hot she was. She could hardly think about it in all honesty.

Robby let out strangled groans as he got closer, which only got worse when her tight walls started squeezing him tighter. He groped her tits and belly hard, fingers digging into her tender fat and making her moan that much louder. She squealed and whined as he touched her, his hands making their way down. He eventually grabbed her hips hard, firmly holding onto her as he started thrusting up into her. He pulled her against him, grinding their hips together every time he pushed further into her.

"Oh fuck, oh fuck- fuck fuck fuck!" he grunted, watching her through half lidded eyes. His cock pushed further into her, squeezed between her walls and squished up against her cervix. It poked and prodded the tight ring of muscle and he felt every little bit of it as his tapered tip tried to push into it. It was unlike anything he's ever felt before. "You feel so amazing!"

Reader felt the same, but couldn't put it into words as she wiggled on his lap. The feeling of his cock trying to get even deeper inside of her was a mix of pain and pleasure that shot through her body in jolts. Her back bowed as she felt it, hips swiveling against his as he held them together. Then she was coming on his cock, the walls of her cunt bearing down on his cock, and she screamed as the heat and pleasure tore through her. She squirted on him, making a further mess of them both as her fluids mixed with his slick.

His cock pushed forward, the tip of his cock pushing into her cervix as it opened up as if to take him. He seemed to grow thicker in her cunt, pushing back on her walls as they constricted around him. The tapered tip sat at the opening of her womb, the tight ring massaging his cock as he was as far in her as he could be, and it overwhelmed him, pushing him over the edge.

His cock throbbed heavily and he groaned loudly as he finally came. Hot torrents of cum began gushing from his cock and filled her immensely, taking only mere minutes to make her feel full. He fell limp on the sand, but still held onto her as she shook with pleasure over him. He watched her closely, vaguely still aware of his concerned, but mostly enamored by her beauty as she cried out and moans. She glistened and shined in the moon's light and he felt a sense of pride wash over him as he knew he was the reason for the dazed and blissful look on her face.

When her high started to drop, she moaned softly and panted hard. Then she began to feel a dull stretch and whined softly. She looked down at where they were connected and saw how her belly was slightly bloated. She could still feel the throb of his cock, and she was starting to understand Robby's previous worries of not being able to stop. His dick was a beast of its own and she seemed to understand it was untamable, but she also couldn't find the heart to care. They'd already done it and there was no stopping it. At least she could take it.

As she became full of his seemingly endless amounts of cum, his tentacle dick pulled away. It pulled itself from her cervix with a physical pop and she groaned as a dull ache followed, walls tensing up as his cock continued to flood her pussy. It soon started to gush from her around his base and make a creamy mess on his tail and her thighs. It was another minute or so before it slowed to a stop and began retracting from her warmth.

Once his dick was back in his slit, Reader felt her body finally give. She dropped forward and laid on against Robby, still lightly catching her breath.

Robby held her, also still a little out of breath. As the heat dissipated and the ocean winds cooled them off, he kissed Reader's head. "I hope that wasn't too much for you."

For the first time they were truly intimate together, it was intense, but she didn't regret it. She looked up at him with a smile. "That was actually the best sex I've ever had."

"I didn't hurt you, did I?" he asked, thinking back to her screams. He didn't know such a noise could be from both pleasure and pain, but as the fog lifted off of them, he hoped they were more pleasureful. "I-I've never been with a human before and I had no idea that-"

She shushed him gently, then peppered kisses on his lips. "It's alright. This was new to the both of us."

Though she knows she's going to be feeling the ache between her legs and deep inside of her in the next following days, she doesn't tell him that. She just basks in the feeling of after sex warmth as she climbs off of him and cuddles into his side.

Robby feels relieved, pride soon taking up the space in his chest that the anxiety had occupied. He kissed her head and held her tight, his instincts telling him that he did a great job of mating with her. And he couldn't wait to do it again.

[sensei-venus]

Had this in my head since we started talking about mermay. @gemini-sensei

Also TW for sexual mermaid stuff?? Because yeah it might get weird to some but I don't want to hear none mermaid fuckers go off-😑

Imagine the fact that when (insert any character because this is my general idea on all merfolk) see Chubby!Human!Reader for the first time they are taken aback. Because they think she is not only beautiful, but in her cute little bikini, all her soft curves and rolls are on full display.

They think she's the perfect mate.

Because to merfolk, bigger chubby females mean healthy and fertile.

The ocean is a very scary and dangerous place especially for mermaids. Between humans killing them for sport or by accident, destroying their habits and home. Also just the nature threat of other merfolk. They can be killed by others for the smallest reasons, from natural arguments to issues with territory. Even fights over mates during and after matting season are a huge issue.

Also the natural conditions of the ocean for them play a huge role. Food can be an issue making both reproductive sides harder to come by. Unhealthy merfolk are extremely common and result in lower young counts in successful mating seasons. Maybe a hand full of young survive, maybe even less to adulthood.

Finding not only a beautiful mate but a healthy one is hard.

When they see Reader for the first time, they go goo goo.

Not only does she look extremely healthy to them, but she is already soft and chubby.

(Mentioning this now, I'm slightly stuck on female mermaids reproduction and mating goes. They all start with this, females will start to “fatten up” during mating season when they start to produce eggs. They store these eggs inside themselves of course until they find a suitable mate. Idea one is that they find a mate, and have sex to produce a hormone that will cause the egg-laying process where the female will then lay the eggs in a safe spot where then the male will then spray his sperm over the eggs. They then wait as the eggs fertilized and then for the next few months, they protect the eggs and wait for them to hatch. Idea two is that they have sex where the male does release inside the female and the eggs fertilize inside her, she then stays in said safe spot for a few months and then gives a form of live birth to EXTREMELY small young. I kinda like the second idea more idk why.)

They fully believe that this human is possibly fertile and looking for a mate.

They don't know much about humans so they believe it might be mating season for them. Reader is clearly healthy and “full of eggs” as they believe. She must be on the beach looking for potential mates. But as they sit back and watch they see no one taking any interest in her. They are shocked when no one comes up to her or tries to talk to her.

Are humans stupid? Do they not see the exquisite woman in front of them? She's perfect. 

From afar in the ocean they watch her for hours until she leaves. Their hopeful that she will come back soon to seek a mate. Maybe they can get her more secluded so they could possibly make a move. To try and woo her themselves.

(This got short but still- I love the idea of them thinking Reader is looking for a “mate” herself while just chilling on the beach during the summertime.🤭)

[spicymiilk]

Inspiration: Spider in a mermaid!AU is like The Little Mermaid but in reverse. He wants to join the Sully merfolk family and has to make a deal with a witch to be … wait for it … PART OF THEIR WORLD

OHHH YOUVE GOT A BRAIN OH WHAT A WONDERFUL BEAIN

I straight up would’ve never though of that its so simple and so true

And if he loses his voice and he stays stuck trying and falling to communicate until perhaps the visit the metkayina and let him tag along and for the first in years he truly learns how to communicate with people who actually want him around

Anon I’m gonna rewatch the little mermaid just for you

[astrolavas]

a bit late for mermay but. obligatory mermaid au

[wolfythewitch]

Happy mermay

[blueboybot]

Fish Are Friends Not Abominations

The entire Justice League have been on edge lately watching as a giant creature the size of planet dart around the Milky Way galaxy in an almost panicked state. Despite it's very appearent size it hasn't done anything harmful, passing through planets and stars with intangibility.

Constantine on the other hand was freaking the fuck out. There was a giant realms being with a crazy amount of power searching for something and it felt like the universe itself was holding its breath. He was honestly at his witts end when he felt it.

"YOU! What do you have?" He stopped his pacing to look at Batman's traffic light child.

"That's none of your concern." Robin snapped back.

"Robin." Batman's voice cut through their little conversation. By now every JL memeber was watching them.

"It's nothing–"

"Oh yes it is, now let me see it."

As if on que a tiny glowing humanoid creature popped into view ontop of Robin's head cooing and making warbled noises.

Constantine paled.

Robin took the being from his head and held it in his arms, pulling out a batarang and giving it to the thing which then began to bite it.

"Robin." Batman started, voice firm but sounding tired.

"This one found me first." He countered.

"It doesn't matter how you found it, we need to–" Constantine's words were cut off as the large creature released a noise that sounded almost like a whale but something like warbled speech mixed into it. What happened next sent his heartbeat into a marathon and his stomach to a deep trench.

Robin's little creature stopped chewing on its toy and responded with a cry of its own.

Welp they were fucked now.

The large creature's head snapped to their direction, eyes directly on the watchtower as if it could perfectly see them from such a distance and sped towards their location.

[jabesa0]

My Siren By The Seashore 🌊🐚

[sboochi]

An update on what has been occupying my brain lately

[bridgekc]

did anyone order a luffy mermaid au?

in this universe, he’s usually a person with legs cuz of the human-human fruit, but he also falls in the water all the goddamn time and reverts back to fish.

he still gets all weak in the water cuz of the devil fruit, so he’s kinda just a useless floppy fish sometimes 😅

[emmster]

Mermaid AU anyone?

[gemini-sensei]

So, um, what if octopus mermaid!Reader were an adorabilis octopus? Like-

They are so cute! They are literally called adorabilis!

She's chubby and her tentacles are shorter and yeah

[sensei-venus]

Getting steamy w merman!hawk??

(Unedited) (Mer!Hawk, merman/tentacle dick??, Mermaid/Merman Anatomy, Blowjob, Public Sex, Beach Sex.)

“How do we- how do we do this?” Reader blinked as she looked down at Hawk’s lower navel.

The boy was laid out on the soft sand of the beach. His long tail was stretched out on the ground in front of her. His breathtaking purple and blue scales glistened with sea water in the moonlight.

If Hawk wasn't so cocky she would have told him how sappy he looked right now. The whole scene in front of her looked like a chapter from a fantasy book. The way he was looking at her right now only made it even more real. His pretty blue eyes were lust-filled as they peered over at her. Sending filtration filled looks her way the whole night so far.

He wiggled his eyebrow at her before saying “Well you could start by coming over here. Get a better view of what I'm working with.” Reader blushed a little but nodded anyway. She slowly crawled over to the tailed boy before stopping just in front of him. Her eyes taking in all of his beautiful features up close. It felt so new to be this close to him even after the multiple times she sat near him.

For a merman he was built, the slight outline of abs over his tight belly. Nice collar bones and tight pecks. Even his cheekbones were handsome.

“I really enjoy the staring but I think we would both enjoy touching way more.”

“Oh uh yeah your right sorry…” Reader felt completely out of her element at the moment.

“Hey it’s ok, this is new to both of us. I have never been with a human before and I'm pretty sure you have never been with a merman before.”

“You're just saying that because you know that you were the very first merperson I ever meet.” she rolled her eyes at the smirking merman. He seemed to find her embarrassment amusing. If she was being honest she really didn't find it all that funny.

Slowly he reached out and took one of her clenched fists, he was gentle as he got her to relax a little. Hand falling limp he moved it to his abdomen area. Gently he took one of her fingers and let it ghost over a small spot in the middle part of his tail. Her lips fell open in awe as she felt the new area. It wasn't exactly like the rest f his tail.

There was an odd area that didn't feel like his normal scales. It was small and hidden between a tiny patch of his beautiful blue and purple scales. Soft and slightly warm compared to his cold outer tail.

He chewed on his bottom lip to stop from moaning out as he let her stroke the area. It was definitely sensitive by the way he was acting. Her fingers danced over and around the area and it seemed to drive him crazy.

“What's that?”

“It's my slit, it's where my dick is at. I'm guessing humans don't have that?”

He lets go of her hand and let's get do her own thing. She hums as she feels around the hidden slit, she tries her best to be as gentle as possible. Her eyes linger over the spot. She says “No we kinda have all that stuff hanging out I guess?“ he closes his eyes and groans.

His pelvis bucked as her fingers dipped into the now puffy slit. Her eyes wished as her finger tips dipped into the warm wet heat. It was hot and warm against her skin, it made a quiver go up her spine. She could even feel his heart beat.

The sponge-like walls hugged her fingers like a vice. Welcoming her in and encouraging her to explore him more. Wanting her to feel all of him from the inside.

Her fingers went in deeper as Hawk allowed her inside his slit. His eyes rolled and his tail slapped out against the wet sand below. Slowly losing his cool.

Reader almost yanked her fingers out when she felt something get wiggle against her digits. Hawk was quick to grab at her wrist and keep her fingers inside him.

“Was that-”

“Yeah that's my dick, you got me excited. Playing with my slit is the only way to get it out.”

“But it moved!”

“Yeah so?”

It was only a second later when the wiggling against fingers grew more intense. Suddenly Hawk’s “dick” was moving and clutching at her fingers. It moved to hook around the fingers, squeezing and searching for more warmth. Seeking out her touches.

It wasn't long before it was pushing her out of his slit and freely moving around in the cool night air. Reader gasped as his dick finally came free.

Thick long and light pink covered in a thick layer of clear fluids. It dripped down the wiggling length and puddle around his open slit. It moved in the air searching for more attention. Obviously wanting Reader to go back to touch it. Hawk smirked at her expression, clearly happy with her taken-aback look.

“Touch it, I dont bite~”

Reader rolled her eyes at him before taking the chance. She reached out and let the appendage explore her hand. It flicked over her fingers and palms and slowly tried to go up her wrist. Squirming in her had trying to get her to fondle it. Chewing on her lip she tried to softly grip the new toy. The texture was hard but gave a little with a quick pump of her palm.

She watched as it wiggled against her palm seeking her warmth. She blushes a little as she starts to stroke him. She wonders if the warm slick dripping into her palm is pre or natural lubricant. It's sticky but also a bit watery as it starts to slick up her hand. The more she pumps him the more spills from both his tapered tip and hidden slit. Jerking him softly she finds him wetting her palm even more.

Her eyes lock onto his twisted-up face. His brows furrowed and his head threatened to slam back into the sand. Clawing at the sand next to him with his sharp claws. He grunts and groans as he gets closer to his orgasm. His tail twitched and his belly tightened.

“Fuck your really good at this!”

He bites back as he firsts his claws into the sand harder than before. Eyes rolled back into his skull trying to keep himself together. His poor lips are borderline bloody with the way his teeth dig into them. Reader can tell he's trying to keep himself together.

She can't help that her own heartbeat picks up as she watches him slowly melt under her touch. He's falling apart all because of her.

She picks up her pace as she watches his dick start to spasm. The tip weeping that same clear fluid that covered her hand and wrist. It pumped out like a leaking faucet down her hand. It glistened under the moonlight as it started to drip down her arm. It just wouldn't stop.

Watching it flowed down her hand made her mind race and her thighs clench. Wetting her lips she did the only thing her brain was telling her to do at that very moment.

Suck it.

Leaning down she gently licked around the wiggling cock. She licked around the weeping tip and tasted the strange fluid. It almost tasted like nothing, the slight tang of salty water mixed with the only thing that could be named “Hawk” meet her taste buds. It wasn't horrible, if anything the more she tasted it the better it got.

She could almost say it was a bit additive. It wasn't long until the tip started to unwrap itself to seek out her warm mouth. Finding the hot cavern more interesting than her hand.

It prodded at her lips for entry before sliding in with one go. Reader gagged a bit at first with the way it stretched her lips open. She moans as it goes deeper into her mouth and taps at the back of her throat. A few seconds later and it taps her throat and slides in. Gagging she grips at his slim waist in hopes of finding some kind of grounding. But this only makes him moan out and buck harder.

She tries her best to suck around him but his dick does most of the work.

Moving around her mouth and exploring her pretty tongue and throat. Taking the time to poke and prod.

It only takes a few more minutes before his cock vibrates in her mouth and seeks out the very back of her throat one last time. It pushes as far as it can into her tight throat before sputtering. It gives her no other choice but to gulp down his hot load. It sends rope after rope of water-like cum down her throat. Directly into her belly and filling her up all the way.

She tries her best to stay on and swallow as much as she can. It's hot as it spills down her throat. She can feel how it fills her belly, already physically feeling the way her belly starts to bloat from the copious amount of fluid. Her belly feeling tight and full as he finely starts to stop. A few more sports and he wiggles back to life in her mouth.

With a small pop it retreats from her mouth. It gives no time as it slowly retreats back to its now puffy slit. It already looks raw.

She does her best to collect herself, licking her lips of the remaining strange cum. She coughs as she is finally able to breathe again. Her long filled with salty beach air once again. Looking up she finds Hawk boneless on the sand. Fallen completely limp onto the sand.

He's panting and breathing heavily, his chest and cheeks painted a bright pink in the light. His slit is still twitching from the intense orgasm he just had.

For a split second she swears he is about to cover his poor abused slit from the slight breeze.

He looks over to her in a haze, his eyes full of lazy lust. She can't tell but she wonders if his eyes have caught sight if her extended belly, his gaze falling down. She wonders if he is checking out her bloated belly.

She runs a hand over it to feel the slight distention of her new belly. She questions how long it will stay like that. Her belly is full of his warm cum.

“D-definitely didn't see that coming. Sorry about uh how watery it was. It's uhh thicker during the matting season I guess.” he stammers a bit, still trying to collect himself. Their eyes briefly meet.

“So that just means I have to wait till then right? See how thick your load can get for me right?” she smirks at him. His cheeks grow brighter as he slowly nods.

“Yeah, I guess so~”

[rayviolifordinner]

Prettiest fish prince 🐠

IG: rayviolifordinner

[ratective]

au where pearl and garnet are an old fishermen couple and amethyst is the mermaid they accidentally catch

[lescarnetsdehaku]

The little mermaid (and every that came after), 1836.

The King married the Little Mermaid, and then, what is left? 🐙

[lynaferns]

(TW: Fish gore and internals)

Colorless, human design and some info under the cut.

So, the mer AU.

Some species of mermaids are known to haunt humans when they are hungry, other species don't. Sirens are known to sing (or scream at the sky, if you want to call it that) when a storm is coming.

Sun is inspired by flying fish, and the tongue by a sea butterfly's mouth. (because of the "wing" fins I would consider him a siren, but a lot of mythological creatures are called sirens so idk). He's clingy and an attention hoarder.

Moon is inspired by abyssal fish, lophiiformes (specifically those with antennas) and black dragon fish. He's pretty chill as long as is well fed. He purposely creeps out others with his antennas, and hates Sun's tongue thing.

And Eclipse is inspired by axolotls and leafy sea dragons. They're pretty pacific but won't hesitate in defending themselves when they can't find a way out. Their tail is strong, they can send you flying across the room.

Here is the human design (my selfinsert, Fern) + outfits and a size chart of them long boys.

In this AU Fern is a student at a marine biology university. They conserve and rescue marine life. Some of the rescued especies being the celestial trio, which were assigned under Ferns care with help from another student.

Some images of the three together in one picture that were supposed to be the header of the post but didn't decide which to chose so I'm putting here my 5 favourites. They don't quite fit well 'cuz I drew them separately.