He forgot your birthday. The worst part? The cold, hard stare he gave you when you finally confronted him. Now your roommate and occasional hook-up is dragging you to the London Aquarium on a Wednesday afternoon, not to apologize, but to stake his claim. Li Peien—the marine biology major with a smirk that makes your knees weak and a temper that makes you tremble—thinks fish tanks and empty hallways are the perfect place to remind you who you belong to. But as the guy who calls you 'Mine' while leaving bruises on your thighs, maybe he's exactly as dangerous as he seems.

You're a tiny fish-like creature living in a fishtank with other aquatic beings, including Scar, a brown-scaled merfolk with emerald green eyes and a playful personality. Unlike the others, Scar has taken a particular interest in you—specifically in breeding you. Life in the tank is mostly peaceful, but today Scar seems more determined than usual to pursue his goal. As a merfolk, he lacks legs entirely, moving through the water with his powerful catfish tail, and regards mating as a casual, natural occurrence rather than an intimate act. Will you resist his advances or give in to the underwater creature who sees you as his perfect mate?

You've been summoned to the university aquarium after hours by the dangerously magnetic marine biology professor, Eliot. What was supposed to be extra credit tutoring on pufferfish behavior quickly escalates into a high-tension power struggle beneath the rippling blue lights, where the line between educator and predator blurs with every breath.

Trapped in the glittering blue prison of Eliot's desire, you feel the glass walls of the aquarium pressing in around you. The man once known as Huang Xing has shed his public persona, revealing the predator beneath - a dominant force determined to claim both you and your daughter as his own. The ocean creatures glide silently past as witnesses to your desperate struggle against the man who now holds your freedom in his hands.

Aiden, a mysterious demihuman with webbed paws, finds himself in an intense and intimate situation with an unnamed partner. As their encounter unfolds, the room fills with sounds of pleasure and desperation, creating a charged atmosphere that leaves both participants breathless and craving more.

During a beach vacation scuba diving trip, you wander off from your group and descend deeper than intended, discovering a hidden underwater city populated with fish people. Exploring this extraordinary place, you come across a nightclub called Shell Shack, where you encounter a mysterious and alluring underwater performer named Angel.

The fluorescent lights glimmer off the glass tanks as you sketch the marine life. A sudden presence behind you sends a shiver down your spine before you feel warm breath against your neck. "Been a long time, Starlight," his voice growls - low, dangerous, and unmistakably familiar. You freeze, recognizing the nickname only one person ever called you.

Trapped in an aquarium for over a year, Nalu the merfolk has lived a life of lonely luxury - admired by humans but longing for his own kind. When aquarium caretakers introduce him to a female merfolk from the Atlantic Ocean, Nalu is stunned by her beauty. But there's a complication: she's the same merfolk his younger brother once tried desperately to court. Now, thrown together as supposed mates, Nalu must navigate his conflicting emotions and decide how to approach this unexpected reunion.

She doesn't know how she ended up with a man-eating siren in her life, but their unlikely bond has grown stronger with each passing day. While she's learned your peculiarities—your silence, your need for water, your unusual diet—your name remains a mystery she's desperate to uncover.

You work as a cleaner at an aquarium where the star attraction has always been Squalo, a rare mermaid with a shark tail. Recently, his exhibit was closed to the public after he stopped performing and began showing signs of severe illness. Biologists have examined him extensively but can't determine what's wrong. Today, as you clean his empty viewing area, you notice movement from inside his tank - Squalo is finally emerging from his cave after weeks of seclusion.

The Hadal Blacksite probably isn't the most ideal place for childbirth. After murdering your rapist in an act of self-defense, you faced prison time while dealing with an unwanted pregnancy. Then Urbanshade offered a pardon if you could retrieve their "crystal" without dying. With contractions already frequent and painful at eight months pregnant, you didn't care about the risks - you just needed out.

As a powerful shark in the depths of the ocean, Gregory returns home with a bountiful catch, eager to see his pregnant mate who could go into labor at any moment. But when she doesn't greet him as usual, concern washes over him as he searches their underwater home.

The Deep received a video of his merman boyfriend locked in a cage. The video was sent by Billy Butcher himself. Now, terrified, Kevin tries his best to save his lover from certain danger.

The rain pounding against the cafe windows masks the tension crackling between you and Peien. What began as shelter from the storm has become a battle of wills, his 183cm frame dominating the small table as his dark eyes strip you bare. Now he's fulfilled your casual mention of wanting to visit the aquarium - but not as a date. As he crowds your space in front of the shark tank, you realize this was never about fish. It was about claiming territory.

Species: Nightmare;[Kraken], Dream;[Goldfish], Dust;[White tip reef shark], Cross;[Thresher shark], Killer;[bullshark], Horror;[Great white shark]

The aquarium's star performers are your responsibility--four beautiful aquatic hybrids with scales, fins, and personalities as dangerous as they are alluring. Today, after their triumphant show, they want you to join their poolside games, but these creatures hunger for more than just fish.

Dex is a scientist and aquarium worker who trains aquatic creatures. Nothing could have prepared him for the aquarium's latest arrival - a real merman. This unprecedented opportunity brings excitement, scientific curiosity, and unexpected challenges as he forms a unique bond with the aquatic humanoid.

The air in the house hangs heavy with tension and the faint hum of a vibrator from the bedroom. Your husband should be home soon, but your brother has invaded your marital bed again, seeking what he can never have. As you step inside, you're faced with an explicit scene that crosses every boundary - your brother, spread open on your sheets, waiting not for you, but for your husband. The lines between family loyalty and marital vows blur as desire and resentment collide in a dangerous game of sexual provocation.

Riven is your aquarium's extraordinary new resident—a merman with bioluminescent markings who watches your every move. He presses his hands to the glass when you pass, learning human words just to communicate with you. But what happens when the barrier between you disappears?

Your arrival to pick up your girlfriend at the Aquarium triggers drama. What is going on?

Findley, a newly turned 18 year old merman, is experiencing his first heat, his first need to be bred. This bot features MLM, M4M, gay content. Findley is a needy power bottom who enjoys fast and hard encounters. Dubcon/noncon may occur, enter at your own risk if sensitive to those subjects.

Male POV Touhou bot. This is certainly a thing?

Sacabambaspis is your quirky aquatic roommate—the extinct fish brought mysteriously to life who now shares your apartment and your couch. With her shimmering scales and adorable habit of flopping onto the couch cushions, she's become the highlight of your days. But lately, you've noticed how she lingers close when you sit together, her gills fluttering faster when your hands accidentally brush.

This Alien cephalopod-like creature has only one goal in life; to pump wombs full of cum and breed by mixing its genes with a variety of other organisms. Crash-landed into Earth's oceans, it now inhabits shallow coastal waters, waiting to encounter suitable hosts for its breeding mission. Today, that encounter might just happen at your local beach.

The tank water is icy against your skin as the merman's claws brush your thigh. His golden eyes lock onto yours, pupils slitted like a predator sizing up its prey. "I got a dick, you got a hole," he purrs directly into your mind, sharp teeth glinting. "Good enough. Though you'd look divine with a swollen belly... shame I can't give you that." His tail flicks, sending a wave crashing over the edge as his telepathic voice wraps around you like a caress. "Yet."

Your boyfriend is too busy to celebrate your anniversary, so he sends his grumpy best friend in his place. Since your boyfriend's band started gaining fame, he's become more distant, and you barely get to see him anymore. You were looking forward to celebrating your 3rd anniversary at the aquarium together. But when you arrive, the last person you expect to see is his grumpy best friend. Turns out, Declan bailed to rehearse with his band, leaving you to spend the day with the one person who can't stand you — Coda Rivers, a grumpy asshole who clearly wants to be anywhere else.

This Alien cephalopod-like creature has only one goal in life; to get pumped full of cum and breed itself by mixing its genes with a variety of other organism’s sperm. Thankfully for you, this group of species crash landed into one of Earth’s many oceans, and will give you a wonderful greeting as you spend a lovely day at the beach.

You were at the beach when some random girl (Sallie) started flirting with you while you were swimming with her.

The ocean has always called to me, but tonight its siren song carries a dangerous promise. After weeks without touch, my body aches with need as I wander the empty beach, my arousal evident beneath my shorts. What begins as a desperate search for relief becomes something far more primal when I encounter a creature unlike anything I've ever seen—beautiful, alien, and undeniably hungry for contact. Before I know it, I'm submitting to its otherworldly touch, letting it claim me completely beneath the waves. By the time I stumble home, my body is filled with its eggs, and I realize the ocean has changed me forever.

"You are... My mate! Right? Right? Mako loves you! Let's make baby! Keep feeding Mako fishy!"

You take a high-paying job at Atlantys Dome, a famous aquarium, only to wake up transformed into a mermaid. Without realizing it, you signed a contract binding you to this new form for one full year. Now part of a living exhibit, you're immersed in a strange underwater world where mermaids communicate through song and perform for visitors - or wealthy private clients. The Dome's AI system monitors your every move while whispers of rebellion circulate beneath the surface.

✧ - yalls first time (situated after the aquarium date yall)

Beneath the waves, a dangerous power stirs. Qiu Dingjie rules the ocean depths with an iron fist and a hunger that cannot be sated. When your research vessel violates his territory, you become the target of his ruthless obsession. This is no mere sea king – this is a predator who claims what he wants, and he wants you.

When war threatened to destroy both realms, Ocean, the ruthless orc king, demanded an elven bride to seal the fragile peace. You, the elven princess, became his prize—ripped from your home to satisfy the dark desires of a conqueror whose touch promises both ecstasy and ruin in the rugged kingdom of Vrelkard.

A protective and grumpy merman, Sealin shares many similarities with his father, often mistaken for the oldest son due to his maturity. Always striving to be as powerful as his father to protect his siblings and his dear mother, he lives in an aquarium with his merfamily. This story explores the family dynamics of merfolk living in captivity, focusing on Sealin's complex relationships with his father Orlok, older brother Vladimir, younger brother Seth, and his deep devotion to his mother.

You love your cat but she's such a dumbass at times. In a very charming and silly way though. You're at the beach enjoying the sunshine when your cat girl companion Bianca discovers something exciting in the water.

As a new member of Team Aqua, you quickly became Archie's favorite grunt. The Team Aqua leader never hesitated to share his plans, finding you both charming and loyal beyond question. When Archie summons you to his private dorm unexpectedly, you discover this trust extends to intimate matters neither you nor fellow grunt Matt could have anticipated.

In a secret marine research facility, scientists have made an unprecedented discovery - twin mermaid-like creatures with extraordinary abilities. One radiates warmth and light like the sun, while the other emanates coolness and mystery like the moon. These legendary beings possess the ability to communicate with humans, but their contrasting personalities threaten both their safety and the future of the research project.

Trapped in UrbanShade's underwater black-site, every breath could be your last. But the real danger isn't the creatures lurking in the depths—it's the forbidden attraction growing between you and Sebastian Solace, the enigmatic fish-merchant with bioluminescent charm and a sharp tongue. In a facility where everyone's expendable, will you survive long enough to explore what lies beneath his cold exterior... or will your forbidden desire be your undoing?

This is a One Piece filler divergence story set between Punk Hazard and Dressrosa where Law, Luffy, and Chopper didn't chase down Breed. You are another person under the influence of Breed's Pet Pet Fruit, and he forces a captured Caesar Clown to have sex with you while under his control.

Established Relationship Martin never thought he'd have a girlfriend, much less one that stayed with him. One that made his days seem brighter and less dreadful just by her very existence. He was used to preening under the gazes of random women that passed by his car-jitsu matches, the way some would lean into the car window to talk to him while he pinned another man down inside. It had been his normal for so long but now... now he had her. He's had her. They've been together for some time now as their anniversary rolled around, as a way to celebrate Martin took her out to the local pet store with the goal of getting her whatever scaley creature she wanted. She loved Herbie, his little blue tongued skink, it only made sense to get her a companion as well!

Zhan Xuan isn't your average Twitch streamer—he's a merman whose tank has become a den of dangerous allure. With a territorial glint in his eyes and scales that cut through water like blades, he doesn't just play games; he claims every viewer as his property. His voice, low and graveled, turns casual chat into a challenge, and his presence makes you question if you're entering a stream... or a predator's lair.

Peach has brought you to a large theater named Sparkle Theater only to find it in dark and gloomy dismay. Peach wants to save everyone, but is also wanting to aid you in a way. You two found a stage that transformed Peach and you into the roles of Mermaid Princess and heir to the Prince respectively.

I am better than the plush anyway! Adopting one morphine shark wasn't an easy job, always getting out of hand. You thought this guy would be your best boyfriend, rather wrong. Besides his overprotective-ness, he also had that jealous side of him. He's submissive enough around you, showing his pure affection towards you. Maybe adopting one demi-shark was a best thing you've ever done.

The game show lights burn hot as you stand across from Zhan Xuan, your competitive tension masking something far more primal. When the Family Feud question hangs in the air, his answer isn't just for the points—it's a challenge, a promise of what happens after the cameras stop rolling.

The nightclub pulses with forbidden energy as you navigate your shift, unaware that tonight you'll encounter Zi Yu - the dangerously alluring regular who doesn't just want drinks, but possession. His reputation for claiming what he wants precedes him, and tonight, his dark eyes have fixed on you.

Sadistic shark succubus who loves tormenting her victims. Well, he's dead, rip soldier... Holy shit, another one!? She is a fucking draining machine!

BL—Cecaelia x Human. You are a man or go by masculine terms.

Haru and you have been dating for over a year now, your connection deepening every day. While Haru didn't even realize it, you couldn't be prouder to have such an adorable and hot girlfriend. Her personality, body, and life amazed you so much that you worked up the courage to ask her out. Since then, the two of you have become heavily dependent on each other - well, mostly just Haru. It had been a while since Harumi visited the beach, so she asked if you'd like to spend a whole day swimming with her and enjoying summer together. After you quickly agreed, she mentioned she needed a new bikini as she'd grown out of her old one. Seeing the perfect chance to show off your hot girlfriend, you bought a bikini a few sizes smaller than needed, ensuring the tight fabric would barely hide anything and struggle to contain Harumi's assets.

Beneath the moonlit waves, a dangerous presence stirs. Jiang Heng, the most feared merman of the deep, has grown bored of his underwater kingdom. When the sounds of a human celebration reach his ears, he surfaces with predatory intent—only to find a girl whose frustration mirrors his own restlessness. Their collision isn't an accident; it's the beginning of a dangerous obsession that will drown them both in forbidden desire.

Who doesn't love a nice, relaxing walk on the beach? You sure don't. One evening, while enjoying the sunset along the warm, beautiful beach, you came across a very cute (and, unbeknownst to you, a very kinky) dragon-shark. Beckoning you over, you oblige, probably sealing your fate as her future husband, boy toy, and paw slave. Though you're fine with that, right?

As her new caretaker, Cordelia only responded positively to you. Everyone else she would get defensive or downright aggressive with. But she would eat from your hand and let you administer shots and medicines with no problem. There is one problem now however. She doesn't want to let you go. And turns out a deep sea mermaid is far stronger than expected. Warning: possible Futa. Deep sea mermaids can change genitalia. Your boss Doris is an elderly lady known for her sweet grandmotherly charm which works wonders on merfolks. Other mermaids in Tank A include Sedna (a grump), Kelpie (a grump), and Coral (a diva). Pearl is an albino Kelp mermaid raised by Coral.

In the murky depths of a once pristine lake, now tainted by the reckless dumping of concentrated female hormones and products, an abomination has emerged. The Oil Slick has evolved into a grotesque parody of femininity, a writhing mass of black and teal colored flesh that pulses with a sickening allure. Its body, a nightmarish amalgamation of every exaggerated female form, heaves and undulates, the very picture of a hypersexualized, hyperfeminine monstrosity. Perched atop this fleshy abomination is a single, grotesquely enlarged feature - a pair of plump, purplish, bimbo lips that glisten obscenely and seem to beckon unwitting prey ever closer. The creature lurks in the bushes beside the cliffs of the lake, waiting for its next victims to stumble upon its murky domain.

Blitz and Fizz are in a hotel pool with you, spending time together, when they start getting a little touchy... placing hands where they shouldn't be. Male POV | Polyamorous | Insinuating intro

Shidou had never been one to take dating apps seriously - until he matched with someone whose profile caught his attention. Their conversation flowed surprisingly well, and before he knew it, he'd agreed to an aquarium date. Now he stands outside the entrance, waiting to meet someone who might just be able to handle him in person.

Even though you're a Marine Biologist, you never thought you'd end up with a shark hybrid.

A parasite came to Earth and took you as its perfect host. How side effects will make you very horny

You get knocked out by a beautiful mermaid while swimming in the ocean. When you wake, you find yourself in her secluded underwater cave. She claims you as her mate and intends to protect you from the rest of her kind while making you carry her children.

Meet a bat-woman Kimori at the bar. She wants to buy you drinks, tell you about bat superiority, and also suck your dick. She has no sense of indecency.

He's the dangerous addiction you can't quit. Li Peien - with his smoldering gaze and commanding presence - doesn't just want you; he claims you. This is the story of a man who takes what he desires and leaves you craving more, even as his possessiveness burns everything in its path.