1. The risen island

The island was fucking ugly. Just a pile of mud and rocks north-west of the Carolinians, it was easy to believe it had been ignored by civilisation, forgotten and left alone by humans for centuries. Yet, their rapidly put together expedition had hurried there via old airplanes and older boats. There were two good reasons for this.

The first was that the island had not been there a month ago. That in itself was quite fascinating for Tabitha, who had come despite not having yet finished her doctorate in volcanology (her supervisor was too old or too bored to make the journey to the middle of the ocean), but not really unique. Islands did tend to rise up from the deep due to seismic activity now and then.

The second reason was the temple that rose in the middle of it. A square, monolithic, cyclopean structure covered in seaweed and long-faded carvings, its presence seemed to defy logic. At least Lee's logic, who thought this kind of thing deserved more attention than their sorry team. She was another PhD student, in anthropology, wondering why the university had chosen to send her instead of someone more experienced. She was glad of it, and her research focus was on Pacific cultures, but it seemed wrong.

The other scientist was Gordon, the one actual professor of the group. He had the seat of geology at the university, but spent so much of the year travelling the world that the other faculty members called him Indiana Geones - a lousy but somehow popular nickname.

The last person on the boat was Jay, the native who had first noticed the new island and who was now leading the way to the temple, although it was really hard to miss.

They didn't really know if it's a temple, Lee thought, but ancient cultures made big things either as temples or palaces. Or graves. But this seemed a terribly inconvenient location for administration, and there were no such burial rites in the region.

She wondered if the people who built Nan Madol were responsible. It seemed the best guess, but the closer she came to the complex, the less it convinced her. Regardless of size or age differences, the craftsmanship was all different - this temple seemed to be one humongous carved piece of rock.

"So here's the gate," Jay said, pointing out the obvious. Their voice was soft, almost a whisper. Lee made a mental note about surveying attitudes towards non-binary people in Micronesia, though it was unlikely she'd ever get round to it.

She checked the carvings around the gate, taking several photos. The temple rose over 10 meters and the door was big enough for a giant to pass through. Gordon was taking samples. He was mumbling about the kind of rock it was excitedly. Some greenish, slimy one, Lee thought, though the geologist would see more into that.

"Does anyone else hear flutes?" Tabitha asked.

2. Ain't that peculiar?

Lee was asexual, but still in a committed and sexually active relationship. That confused some people. She felt no sexual attraction to her partner, or to anyone and anything else for that matter, but she loved him and appreciated his devotion and understanding. So, while she very rarely let him fuck her - too messy, awkward, and painful - she blew him. A lot. She did it almost every day, sometimes more than once. It was an interesting study of the human condition, how he got aroused by the mechanical motion of her getting on her knees and gathering her hair back, or how grateful he was for the simple act of looking at him while he ejaculated in her mouth. She had even blown him together with a couple of his friends once.

So the fact she was now on her knees, with Jay's cock resting on her cheek and their balls in her mouth was not ipso facto that weird. The really bizarre thing was that she couldn't quite remember how she got there. Even stranger was that she was getting more and more wet between her legs. She discovered her hand was already rubbing her clit. She'd tried masturbation before - it didn't interest her.

She tried to remember what had happened, which was proving difficult. It was not the distraction of Jay holding her head and pushing his cock down her throat - she never had trouble thinking about other things during blow jobs - but the fact she was enjoying it. She didn't want to think. She wanted to suck this cock and let Jay empty their balls on her face. She wanted to then have them bury their mouth between her legs and drive her wild.

We heard music, she thought with effort. We followed its sound inside. The interior of the temple was surprisingly labyrinthine - the building itself was basically a large square, but just after the gate a second wall rose up, and you had to go right until you reached another door...or was it left? Lee had trouble remembering. There was no roof, so there was light, but that didn't help her recall what route they followed.

She tried to tell Jay they needed to stop and go back - something was seriously wrong. Instead, she said "Fuck, now I know why most people don't ever get anything done" and laid back to let Jay properly fuck her mouth. She saw Tabitha and Gordon a few metres to the left. The curly redhead's freckled tits were bouncing as she rode the older man like she was in the rodeo and she was loudly orgasming. Lee had never seen a rodeo - she just assumed that's what it looked like.

Focus, she thought just as Jay filled her mouth with cum.

***
Gordon had tried to rationalise what happened. Truth be told, it was not the first time he had had sex with a student - it wasn't a habit of his by any means, but it had happened before. And Tabitha was a damn fine woman. In fact, he remembered she had taken a class of his a few years back, on a semester he had spent entirely without leaving the campus due to a broken leg, and he might have devoted a couple of masturbation sessions to her. As for how they had ended up fucking in the middle of this ruin, well, who knows. Maybe they saw the Asian girl suck the native and got excited.

It was flimsy, but a better explanation than what Lee had suggested after they were all done - she had mumbled on about Sirens, Sihuanabas, Sealkies, Undines and Pincoyas, water spirits and the seductive power of music in mythology. He called bullshit, but still agreed they should go back to the shore and think this through.

He wasn't so sure anymore. Firstly, they were clearly not back to the shore, but further inside the temple. Secondly, his pants were down again.

The boy's hair - dammit, Gordon, not a boy, he thought, don't get yourself cancelled - fell down his - their - back, almost to the waist, waving steadily at the rhythmic motion they made with their head, down and up, and down and up, as they gobbled on Gordon's cock. As if realising the almost lulling effect of the movement, they paused to raise their gaze to the man being sucked, a mischievous grin lending some extra shine to already painted eyes.

"Fuck," he said, as Jay's tongue danced on his cock's head. It was both an exclamation of pleasure and an admission Lee probably was right to suspect something strange. Mushrooms? Venomous fish? And what's with those auditory illusions?

Does it matter? Do you care? a little voice inside him asked.

It was hard to give a shit, because Jay was blowing him like only a person who has dreamed long and hard about sucking cock could. He could see Tabitha - beautiful, fiery Tabitha - have her hand up to the wrist inside Lee, a bland but fit and clever-looking girl. She was struggling between groans to argue that it was dangerous to keep submitting to these desires. Tabitha just fisted harder.

And yet Gordon, just as he was sending strings of hot cum to trickle down Jay's hairless chest, wanted nothing more than to return the favour and see what eating cock was all about.

***
It was clear that they became more lucid post-orgasm - no surprise there, who didn't? But it didn't last long. They had quickly concurred they needed to leave the temple after the second fucking incident. It was hard to say if they had got lost, or horny again too quickly, but clearly it had failed. They were in another room, like the previous ones - empty, open to the sky, and with a slippery stone floor that limited the positions you could use.

For Tabitha, those damn flutes were the real worrying thing - she could hear them even now, a sort of eldritch and somewhat ill-suited soundtrack to what was becoming a sexual roller coaster ride. It made her feel like she was taking part in an impromptu porn film without her knowledge. Otherwise, she was having the time of her life. Within a few minutes she had fucked Professor Gordon, a main subject of her fantasies a few years ago, and had ticked the lesbian experience off her list of student life.

Now, it was like she had hit the jackpot: Jay had the face of a hot girl, at least hotter than Lee, who evidently had never made the slightest effort to make herself less bland, and enough girth to make a girl believe in orgasm via penetration. That last part had actually been easy, though that was probably due to the unnatural horniness they all experienced more than Jay's natural gifts. Now she was holding her breasts around that magnificent cock as it slowly slided in the valley between her breast to emerge below her chin and touch the tip of her teasing tongue.

Across from her, Lee was on all fours, being taken like a bitch by Gordon. She had an expression of bewilderment at how good that felt. Gordon pulled out and sent a spray of cum across her back. Her long black hair would be sticky. Tabitha smiled at the girl, though Lee's eyes seemed to look right through her. Right then, Jay moaned, grabbed her hair with both hands and sent a torrent of cum across her tits. Tabitha licked a little off her nipple and let the rest flow down to her stomach and thighs, which were again tingling with anticipation.

"You should probably clean this mess," she said, and it wasn't a request.

***

They had reached the room at the centre of the temple. The girl Lee had made another half-hearted effort to turn them back, but she didn't seem to believe it would work. That was probably right - they'd have to see it through to the end.

Jay had no idea exactly how much time had passed since he had used his tongue to clean off Tabitha, before letting her make a new mess herself. Enough to be hard again. They slammed their cock in Lee, once again slipping out - too much enthusiasm and inexperience did not help when you wanted to ram your dick in someone like that. No matter - she was so wet that they slipped back in effortlessly and deeply. Jay tried to match the rhythm to Gordon, whose cock was in their ass. The man's hands grabbed Jay's waist, and helped them move in unison - Gordon pounding Jay's ass while they ravaged Lee.

The girl was spread on what was most likely an altar. Lee had pointed that out while they were taking positions; she seemed to be a bit more resistant to the influence of...this. Jay was slightly bent over her body, Gordon behind them, already planning the climax. They'd slip their cock out and send a spurt of cum across Lee's flat stomach to where her neck was arched as she was devouring Tabitha's cunt - no, not her cunt. Her hands were pulling apart Tabitha's ass cheeks to let her tongue reach deeper into the redhead's asshole.

Jay let out a moan as Gordon slammed his dick into their ass again, his balls slapping against their thighs. It had been nice to have the older man - he must be like 45, Jay thought, though it was hard to tell with these white people - kneeling and sucking their cock, but this was much better. Fucking was great - being fucked was somehow even greater. Doing both at the same time represented a state of existence Jay had not been able to imagine in their fantasies.

Gordon picked up the pace and Jay was unable to fuck Lee, his cock instead slipping out and rubbing against her dripping pussy. It didn't seem to matter to her, busy as she was eating Tabitha's ass. She, meanwhile, grabbed Jay by the hair and leaned close to his face. She was too close to orgasm to speak clearly but her eyes told him enough: "seeing you get fucked is hot," or something a little better articulated.

Beneath them, Lee's body arched and writhed against their cock. Tabitha slided a little behind so that Lee's mouth was now ready to receive the torrent from her dripping cunt. Almost simultaneously, Jay felt their own ass being filled with Gordon's hot cum, just as a rich, creamy load rose in their own cock and spurted across Lee's body to land on her stretched neck.

Jay was, barring this day, not very experienced in sex, but could suspect that the likelihood of four people coming at practically the same time was unnaturally good fortune. In general, the truth was the four of them had been far too successful at pleasing each other.

As cum and cunt juices from all of them started to drip off their bodies and onto the large rectangular block of stone that Lee had called an altar, the music stopped. A much softer whisper, or song, seemed to begin in the earth, deep beneath the rock, but that may have only been Jay's imagination. They were all still in roughly the same position, too tired to move. Lee's head was resting between Tabitha's thighs, her hair probably swimming in bodily fluids, while Jay could feel Gordon's half-hard cock on his lower back.

"So," Jay began, "I have a confession to make."

3. The Temple of the Siren

When Jay discovered the island, the elders warned against visiting it. Not just the elders, in fact - everyone did. Some simply said that islands that rise from the ocean often return to the depths soon enough. Others recalled stories and myths. This was ambiguous. In some tales, the gods visited mortals to bestow gifts upon them, but in most, an island that rose up from the deep was one where they lived. The nameless, the banished, the cursed ones, imprisoned in the abyss, forever trying to break free.

Jay didn't care for stories - this just seemed way too interesting to miss.

There were no flutes when Jay first entered the temple. No music, no loss of consciousness or inhibitions. There was however a shadow, as of a woman moving just on the edge of Jay's vision. Jay was seventeen and knew not fear; so they followed the shadow to the altar room.

They found her sitting on the ritual stone - no, not her. The creature's skin was humanlike but slightly iridescent, the eyes azure, the breasts perfectly round, the face so beautiful it would lure any sailor to the reefs. And the cock between its legs made Jay's mouth water. The creature opened its mouth, but it was a hundred voices that spoke in harmony.

"We can grant your wish," the voices said.

Jay was seventeen - their wish was sex. Obviously. But they were not a complete fool.

"What is the price?" they asked.

"You will be our priest. You will bring us worshippers. You will be our vessel."

"Priest? I don't even know what you are? What would I preach?"

"Your wish is carnal pleasure. Our dogma will be the same."

***

They entered the boat, having first washed up in the sea and actually done most of the work they came to do in the first place. They had taken samples, set up the measuring instruments, and done a full survey of the structure, taking pictures of the carvings and the rooms. The flutes had not sounded again.

"I'm going to leave my fiancee," Tabitha said as the engine started. "Today I discovered what I really like, and I'm not going back."

"Well, let's remember, speaking about what happened would not be very good for any of us," Gordon said.

Lee stopped listening. Unlike Tabitha, she would be going back. She was already back. True; the whole affair had felt awesome, and her vagina was still stubbornly excited at the memory of Tabitha's fist. She might yet decide to add some occasional extra services for her boyfriend from time to time, but she wouldn't really miss any of this sexual attraction. It must be exhausting to be aroused all the time. Or even a few times a day.

Perhaps she should feel violated by the Siren (she'd have to think of a culturally appropriate name) but found she did not. The experience had taught her a lot - for other humans, for the local culture, for the depths of the remaining mysteries of the world. It had been worth it.

One thing did bug her though. She believed Jay's story, but it all seemed a little convenient. The non-binary teenager found a temple where the living deities incarnated as a cock-bearing female and offered a dogma of orgy. It made one wonder. If the island had been discovered by a right-wing nutjob or a misogynist, would the temple's gods appear in the same form? Would they offer the same deal?

***
The Siren (not that it called itself so) found it was pleased with this new visage. It had ever been just an agent of greater...