CHAPTER ONE

"Siren."

"Mmm… an old classic."

"They always seemed fascinating to me, you know?"

"I… well, I can't say the same. They're hard to come by these days."

"Yeah, yeah… it's been like this for a while now. It takes me back though."

"Of course! I remember you spent most of your time studying near that lake. You should have seen one more than once."

Truth to be told, his friend wasn't wrong. Thomas wouldn't confirm that though, he'd rather stay quiet about it while a new topic came to mind. Nonetheless, he didn't need to do more than look at the glass of water he was about to drink for deeper memories to pop up right quick.

He was barely a student when he started seeing mermaids in that place, that is, in a very particular kind of way. She was merely a shadow in the corner of his eye the first time this happened, and it was gone as soon as he turned around properly. He had "lost" his wand on purpose just to not be paired with the bully of the class for the group tasks of the week and he was successful at that, this made him spent the rest of the afternoon moving his legs back and forth while sitting on the dock and trying to blame loneliness for that weird sensation he felt in that moment.

What at first was something temporary ended up becoming a habit, the dock was a great shelter after all. He would spend most of his time there not knowing how captivating it really was in nature for him, and it didn't take long for him to notice that the same experience repeated itself every single time he visited this place. At first, he thought of it as nothing more than a drop of water escaping the mass thanks to the wind, or a nearby bird. Later, he tried to blame a ghost after seeing Nearly Headless Nick roaming around in the halls and the effect he has in some people, which led him to start processing this as the effect of a drowning victim trying to regain total control of his final resting place.

It wasn't until his second year at the wizarding school took place that, for the first time in his life, he confirmed with his own eyes the existence of merpeople. What could have been a foreign woman cautiously keeping herself afloat was immediately classified as a siren when a couple of fin-like ears appeared, and more traces of her face were defined over the surface of the still water.

Carefully tanned skin, dark hair, sharp stare.

He was totally paralyzed, the effect the uncanny sight had could be proportional to finding a man walking with his head backwards. The precision necessary to keep her head perfectly afloat above the water in, apparently, total stillness must be challenging enough to not be something a person could ever do and there must've been something in his face at that moment because the next thing he saw was a splash of water giving a little jump in the same place before being all alone again.

The next visits he made for the rest of the year were defined by the constant feeling of being watched from a distance while being all by himself, merely hoping to hear the water splash again.

But what the third year had in mind for him was beyond that, by that point, many had already noticed his affinity to the lake. A game of truth or dare had taken a small group of boys to confirm if he was even capable of swimming after all the time he spent near it, and he was, he really was. The thing is… that he was pulled down right before laying hands on one of the wooden bars of the dock while the last thing he heard from the surface was the laughing of his peers turn into despair. They ran away in search of help while he could barely keep his mouth shut underwater. He was turned around with a single touch while a texture softer than human skin itself was applied on his mouth, and then he heard… as if the lake itself were doing the talking.

"Hold on for a little longer. If you go out now, they'll never stop bothering!"

What could have been a face in that moment was obscured by a parade of bubbles, what could have been a breath of fresh air became a whole minute of underwater awareness where nothing seemed real as a female silhouette took shape among the black waves of her own hair. He was taken to the edge of consciousness in that moment, only to be released right before fading away. He ended up adrift and alone once more, gasping for air with the haunt of the female figure losing itself in the little waves she made on his own.

It would've have been enough for anybody else to leave that place at once, but even then… he kept on going there until the idea of establishing stricter boundaries for the students became more present thanks to the intervention of his classmates. They made a great deal out of it despite being to blame in the first place and this made him stop for the rest of the year, he would stay in the common room and merely look at the lake from a distance.

Still, the next period didn't make itself wait. He went back to the docks then, when the idea of putting some restrictions fell off their heads… and the feeling of being watched followed right after.

It wasn't going away, and daylight didn't seem to last enough this time.

He started spending the night with Lumos around while keeping his eyes on the pages of his class notes until she no longer was a shadow in the corner of his eye, or merely a sensation behind his neck, but someone to talk to… carefully approaching under the same circumstances as before, not provoking a single wave in the water.

"H-hi," he said to no avail, she was looking at him in total silence while he leaned over the dock against all sense of self preservation. He started lying down on his belly and trying to have a closer look at her even after knowing well about the tales, they were merely background noise while the sound the dripping water made after falling off her hair had taken the main spotlight.

"Do I know you from somewhere?" she asked, tilting her head upwards with a smug expression on her face. Her voice was mature, on the hoarse spectrum of things and possessed a certain elegance only a mythical creature could show off.

"Yes! You… you helped me out! You were right about that, they never bothered me again!"

"I see…" she started sinking right away when he rushed to get a good grip of his wand and swinged at her.

"Premento!"

A shriek followed, the quiet nature of the lake was disrupted as the siren turned around and charged at him within her boundaries.

In less than a second, she assumed the role of an apex predator as she raised above the water and held to one of the wooden shafts. With half of her body out of the lake, her height was… monumental. The young wizard was reduced to a prey under the threat of her claws, she pointed her whole free arm at him as if it were a blade and it was obvious that beyond this point any word he could say would fall short of speed against a possible aggression.

"What was that?! What have you done to me?"

"It's just a pinch!"

"A pinch?"

"It's a spell capable of producing the same amount of pain a pinch would do! Nothing more than that!"

"What for? Answer!"

"I just… wanted your attention! D-don't go away!"

Deep breaths, anger, cold water and then… a realization. Her aggressive demeanor was quickly shut down as she went down once more and disappeared in the depths of the lake.

After that, it took some time for her presence to be felt again. He didn't know how deep the water is, but his previous experience was all he needed to take in consideration when she was around. Her eyes could be felt as the quiet company of a neighbor in a nearby room, or the steps of a person downstairs, it's knowing someone IS there despite not being able to see directly. And yet… he wanted more than that.

Reading was all he could do to understand more about her, it was his primary source of information about them when there was no one he could ask about a siren without raising suspicions about his closeness to the lake. He didn't want to have more company than hers, be it in a foreign sensation near the corner of an eye, or through the lens of water itself hundreds of meters down below.

Either way, the barrier must be broken… and a little more reading provides him with a way to call for her.

The next time he went to the lake he arrived with the guitar his father gave him during his tenth birthday. You'll grow into it, he used to say, and he was correct. He started playing the old songs he taught him, and she appeared right near the end of the third one, that's when he stopped and let her approach until no more advances were done.

"I… I didn't want to hurt you back then, I-I'm sorry, I truly am."

He didn't even look at her directly, he knew he couldn't. There was only a reflection in the water when a careful distance was established, and he was talking to it. Even still, she knew well how precious this was at the time and sunk while keeping his eyes on him until it was too deep to look at each other anymore. That, he felt clearly… a very simple smirk that marked the day from which more will be seen during her escapades. Her neck, her shoulders, and her hair being whipped back into shape before swimming down below where he couldn't go by any normal means.

Eventually, her bare back took the spotlight the whole lake presented to him, and another year passed before he could see much more. He didn't know if it was the guitar, the night, or a special date… but it all went to a point where she offered her hand, midway there between human and beast.

An inviting, almost alluring stare was provided, as if the siren had been singing without moving her lips.

The strings of the guitar stopped moving then, he remained still for a couple seconds and after no action was taken… she stood above the water, her height easily doubling his. It was like that moment where she was about to hurt him thanks to the boldness he had as a little child, but with no signs of threat being present. This was the most important difference when it entailed the idea of seeing a woman's bare breast for the first time.

She kept herself there for a couple of seconds more before falling on her back and swimming away, all this while her bare body kept making waves in the distance. It made him feel lightheaded, her height was so remarkable that it almost seemed taunting in nature, he had trouble trying to find a moment in his memory in which he felt so small next to someone else.

What was it? Her behavior is like a puzzle where the rules themselves are unobtainable, it was the rapturous balance between exposition and secrecy that made her captivating in nature as if there weren't more mythical beasts or creatures in the magical word for him to look at. The whole lake had become a window into a world he hadn't explored yet. A different kind of effect, far yet near. An experience only a siren could provide without even saying a single thing through shoulders that lead down a path of curves going inside and outside, and a series of valleys made of soft skin, reaching the hips, and finding the apparently armored plating the sea itself provides while the thighs are converted into alleys that make a fantasy become reality.

This opened the door for more of her apparitions, always alluring in nature and moderate enough to make the mind fly away at the possibilities. From that day and on, she would swim across the whole lake on her own. Her silhouette could be seen moving the upper and the lower part of her body with a harmony that could make him lose the notion of time with ease. In fact, at the end of the day he was unable to differentiate how much time he had really spent in the docks. Not long after he realized that a certain threshold had been crossed and sometimes, he simply couldn't tell if he was seeing dusk or dawn anymore.

It was at one of those nights where he simply laid down on his belly once more and reached out for the water while extending his whole arm. He touched the lake with the tips of his fingers, as much as his own height allowed it. It became his farewell ritual, and he kept on doing it until the last year brought up the fact that he was no longer a child… he could easily sink his whole hand in the lake by now. He wasn't the same as before despite dragging all along the same train of thought.

Still, it took him a while to realize what this meant. An adult's life was right around the corner, and the wizarding school was bound to be left behind. It was a sad thought that took him to the lake once more for one last time.

It was totally silent in that moment. He dropped off his shoes and took off his shirt, he left everything that could identify him as a student in the docks and entered the lake in the middle of the night. He would try to always keep an eye on the shore while he ventured into the place she called home and waited patiently for one last encounter a couple of weeks before graduation, as if he were accepting the invitation she made long ago.

He started swimming as far away from the docks he could and back, over and over again. He repeated the process for long enough to start feeling pain and make the cold bearable. At least, until he was dragged down and could no longer get a grip on the wooden shaft, just like the first time they met.

Interestingly enough, he didn't struggle at all this time, and his eyes had grown used to the amount of light the night offered. This meant that an almost totally clear image of her was perceptible underwater. She was still taller than him, but her height wasn't as towering as before. She quickly swam below him and held him from behind, he felt the softest segments of her skin being pressed against his bare back slightly, and then, in a firmer way as if a hidden commitment had been assumed by her… a certain surrender to the circumstances.

She started pushing him deeper into the lake, gently enough as if she wanted to make sure he wasn't going to react badly at this and he didn't.

He could feel the lower part of her body drawing twirls underwater, he felt her fins toying with his legs while the surface of those segments, despite their appearance, were softer than natural human skin could ever be. He was barely capable of feeling the extent of its features before they would have already slipped off and moved even more. A shiver runs through his whole body when she slides her arms on his torso and held onto it with strength before wandering all the way up his chest and shoulders. The distance between them was taken to a minimum, he thought many things in that moment but what came to mind almost instantaneously was the desire of touching her.

For this, he caressed what could be reached of her thighs while one part of him wanted to push her back in self-defense. Yet, to tighten the bond between them became a priority that triumphed over self-preservation. Her tense belly and firm hips were rubbing on the lower segments of his back as they went even lower, and a certain dance could be processed from all her movement.

The dark depths of the lake had become a pitch-black mass that made him feel a kind of weakness he hasn't experienced before, not even the shortness of breath could compare in scale to the absurd immensity of the sight before him.

Then, they reached a halt.

She had stopped moving right before getting to depths where light couldn't touch anymore and up became down in that moment. Her weight could be felt upon him as another layer of being, she spread his arms open and peeked over his shoulders while trying to catch a glimpse of his face and very cautiously kissed his cheek… forcing a part of his consciousness to slip away when the pressure she applied on him went through a little change that made him more aware at the same time.

He felt her hands slipping away, and he felt lighter for a second.

She took some distance from him when swimming and flying couldn't be recognized from one another and right before emptiness could take him away from her, she ran every single of her fingers across all his body to the tip of his toes, appeared in front of him while her tail wrapped around one of his legs and pulled him closer. In less than a second the roles were reversed, and this time it was the entirety of his body being pressed onto her in that moment while gravity's leftovers produced a type of contact he had yearned for a while without even knowing.

He wanted the silk of the clothes that remained on him to leave him alone for once, he wanted to feel more of her than simple brushstrokes and fleeting friction.

And it may have been the thought of that alone which drove her to increase the tightness of her grip around his leg, when slowly, she started swimming up while the sharpest part of her fins begun to hurt his skin, and he simply couldn't care less in the current circumstances. It was, after all, more of her rubbing on him.

They could have been one being alone as the motion became more prominent… two parts of the same creature pressing and releasing constantly, concave meeting convex while the concept of surface started existing again and his sight became clear with that tanned skin of hers becoming a fever and her arms around his body a shelter of sorts that would keep it aflame.

And they arrived to the outside, but even then, he still struggled to catch a breath. For one moment he believed that gasping for air would have made her stop existing, and he couldn't muster the strength to abandon everything she conveyed right now. He saw her approach the docks, splashing his face with water as a wake-up call for his muscles to appropriately function up here. It made him look towards her while more of her human grace, intertwined with the mythical, became a silhouette capable of raising temptations with every move she made.

And a wake-up call it was, for him to start following her to the dock.

She leaned her back against one of the many wooden shafts of the dock. It was a little more problematically done than what it should, but the way the dock was designed allowed her to get her upper half partially out of the water. He held onto the intricate design to make sure she simply couldn't go away as before and then they looked at each other for a while.

During this, his breath seemed to be following the track of his heartbeat in frequency, and he closed in just as it reached a point where it seemed it wasn't possible to go any faster. Slowly, and restrained he approaches and kisses her shoulder while trying his best to keep his eyes open through that. He didn't even know how advantageous his place was, it was her who realized that her lower body had been partially contained by his thighs… her hips where constantly touching the inner part of them, and it was the oscillating motion that provided the right quantity of stimuli for surrender to take form. She arched her back slightly, and through this her bare chest touches his. The contact surface increases and so does the weakness and the dents in her character.

She begins to forget about supporting herself when he reaches her neck, it was all about kindling the way she was feeling in that moment and for that it was necessary to hold him close while her lower body was being toyed by his. Still, there are some features she can't get over that easily. A certain harm is done as her hands slide across his body, she reaches the remaining cloth that kept them separated and tears it apart.

He embraced her back, and his erection could be felt struggling to find the right place while her hips yearned for it.

For the first time since forever water splashes could be heard in the normally still lake. It was a sound that would be followed by a silent whimper when he managed to slip his member inside of her and a sudden stillness in the lake followed. Just three seconds later… a single whimper took place, and for less than a second she felt small, weak, and enfeebled. A part of her wanted to escape his grip, only to forget it all as the thrust repeated itself, deeper this time, and any desire of illusive nature was abandoned in that moment.

The third thrust takes place, and he held her tight. His mouth started journeying across her neck, her cheeks, and her lips in a deranged way where she couldn't even answer back appropriately. She persistently tried to kiss him back and feel more of him within her. The human side of her was tightly pulled towards him while the beast could be felt with the tips of his fingers clenching and still struggling to have a firm grip on her lower body. It was back and forth as she sighed with a unique harmony to her voice that made him arch his back as he held her arms apart and thrusted once more, only to press inside for a little longer than last time.

The lake itself contributes to their bodies pushing against each other, over and over again until he held one of her arms up to make her turn around and take her from behind. Two attempts were interrupted by her curvaceous hips trying to rush his intent while the perfect musculature born from the amount of conditioning the waters demand to be ventured made this an otherworldly experience, it was like being pushed away by the waves of the ocean itself. She bites her lips and gasps for air deliciously when he penetrates her once more, her tail carefully tries to wrap around one of his legs to lock him in place and increase even more the pressure his body exercises while her breasts are caressed by the water repeatedly.

He looks down and notices that a red taint has started taking over the waters around them, it doesn't take long for him to realize that it comes from his own legs as a consequence of the trauma that is produced by the friction with the lower part of her body. Yet, it only adds to the arousal he's experiencing right now. It's like enjoying every single part of a rose… with thorns included.

The pleasant rhythm converges in a single thrust where she arches her back as she hadn't before, through this, they finally kiss as she caresses his hair, and both go underwater once more.

His hands meet in her genitalia and stroke her deeply with enough strength to make her twitch while the depths start to exist again. The left one goes for her belly and straight up until he reaches her breasts, holding tight as he goes even harder into her and fall deeper into the lake where her hips push him one more time while the moaning chant of her voice reaches an exuberating climax and consciousness starts fading away. It was merely the glimpse of an orgasm that made them wash ashore, right where the water has enough depth for her to move freely. He's trying to keep his head up, while the shape of her tail becomes a curtain that covers and uncovers the moon persistently as she kindles little splashes of water around them. They share the pain and the muscle fatigue they provoked to each other, and she lies down on him, offering herself on earth.

She begins pressing on him while his right leg accommodates to keep her in place, she thrusts her pelvis with an ever-increasing speed and strength while provoking more wounds across his legs. She supports herself on his bare chest, her tail pulls him partially to increase the friction between them and this keeps going for an unknown amount of time.

She supported herself on his knee as she pushed it away and a new aspect to their union was achieved, this allows her to put more of her weight on him while keeping the speed up until she reaches orgasm as he ejaculates inside of her. He quickly holds her hips in place, and such action progresses further when he wraps her arms around her and tightens even more her body onto his. The last of the muscle twitches takes place, he breaths in deeply, leaning back on the ground.

He kisses her breasts to the point of feeling her heartbeat on his ears, galloping under the clutch of pleasure and surrender. Ultimately, she lays down on him and stays like that until the threat of dawn draws near.

He stood up and barely had to turn around for one last splash of water to be heard, the sun had already appeared on the sky, and she was no longer here by then.

There's that thing about a wizarding school he always thought was weird, it's the importance given to scores and the fraternal sense in general. There's a strict code for that and, as always, it doesn't reflect what a person is truly capable of in certain circumstances. From his point of view, there must be a certain threshold of experience to go forth and keep going up in the magical hierarchies. After going through all the magic, all the challenges and such he was certain of one thing among all… he truly was the only man who graduated in Hogwarts this year.

Going back home meant having a good story to tell, his guitar now carries a wonderful memory with it, and it doesn't take long for his father to notice a foolish smile on his face.

By then, it was obvious how grateful he was for that simple gift.

"Having a good time, aren't ya?"

"That's… a severe understatement."

"Where's the mischief, huh? It seems like you've done more than just getting out of that castle…"

"Dad, I… I did it with a siren."

"Oh, really? You too?"

"Uh?"

"I did that too when I was younger, in Hogwarts as well."

"I don't think you know what you're talking about…"

"Oh, I am… she was a tanned beauty, black haired, and a mischievous beast!"

"W-what?"

"She gave me a son not long after. A pretty boy that has… recently graduated as a fully-fledged wizard!"

Author's note:

Thank you for reading, love!

Goa here, I really hope you had a good time reading this story. It'd be great if you comment down below, I've heard that people who write a review before leaving are given free cookies and milk (have a good time!)

P.S. This is my first time here. Please be merciful, beautiful people.