What's She Doing at Night?

Story by Mech on SoFurry

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A fun little commission for Anonymous. Guy wonders what his sister is doing and why she's acting strange. Gets more than he bargained for.


“Other people have to use the bathroom, you know!” Marty banged his knuckles off the door. He could hear Cici in there, humming and whistling along to some music. Bad enough that he'd moved back home after... Well he didn't like to think about it, but Cici had moved in too. Cheaper rent she said, which he could understand. Though his time away had made him almost forget just what it was like sharing a bathroom.

A beat of silence, then, "Gimme like ten minutes, Dork." Which only made Marty throw his head back and sigh. He reached up to scrub his fingers through his hair with an exasperated noise.

Relief came as his mother walked past, "Just go use the master bath, but don't make a mess. You know how she gets with her baths." He turned and was down the hall before Mom even hit the stairs. Couldn't brush his teeth and all that, but he could keep his bladder from bursting.

Morning business taken care of, he ducked and splashed water off his face. Catching a look at himself in the mirror. Five o'clock shadow would have to be taken care of, once the bathroom was clear. He was handsome enough, or he liked to think, but his luck lately might say otherwise. Lightly tanned, in okay shape, dark hair a little unruly right now. Marty looked about as generically good looking as any other er guy in his early twenties could. Yet here he was, back home with his mother and sister.

Another splash of water as if trying to wash away his thoughts. He sighed and rubbed the back of his head, staring down in the sink for a few seconds before he heard the familiar glug of the tub draining in the other bathroom.

Cici was still humming away in there. Probably working on her hair or some other strange womanly voodoo. Even growing up and sharing a bathroom with her, he couldn't begin to fathom exactly what took her the better part of an hour to take care of. At least she had the door open and greeted him with a, "So long as all you need is the sink, you can come in."

He stepped past his older sister and reached for his razor, "Every morning, you've got to get your bath in."

She adjusted her towel and leaned forward to work on her makeup. "Of course, I can't spend all day smelling like sweat. Gotta get up before I do, and I've got to get my morning miles in since the pool's closed."

As she moved, he caught sight of some bright color peeking out of the top edge. "I don't know how you work all day, study at night, wake up at fuck-knows when, and still have energy for everything else." The razor hummed as he ran it over his cheeks, looking at the bit of color. It looked like one of those binders or notebooks some people had as kids. Brightly colored, hint of a slightly cartoony/cutesy face that he couldn't quiet make out." When'd you get that?"

She looked like she'd been about to respond to his first statement when his second caught her fully off guard. "Couple months back, don't say a word about it."

"What, you're a grown woman, you can't get a little ta..." A swat and look silenced him. "Oh, trying to keep that all quiet from Mom? Afraid she'd get onto you about that?" He continued with various little 'You're in trouble' noises.

To which she slapped his shoulder. "Shut up," she almost whined. "l don't want mom to find out." Cici turned and leaned towards the mirror, carefully putting on some sort of eye makeup. He wasn't sure what it was, and was certain it was alchemy of some kind. "You know how she gets about some things,. Don't want her freaking out."

A gentle nudge made her scoot over so he could get to the sink. "Like when she asked where you go sometimes?" He paused a second, "Where do you go, by the way?"

"Out with friends mostly. Then we'll crash at someone's place." She picked up her little tune again, whistling, ending in a little chirp-like note as she added a flourish to her makeup.

He'd been her brother his entire life. As such, he knew when there was something she wasn't saying. All in the way she said it, the speed of her response. It was that practiced, 'I'm telling you a partial truth' thing she did. He also knew when and how to push it.

"Uh huh," he garbled around the toothbrush, "neuwah clob?"

She also knew enough how to speak Brushinmoutheese. "Gawd no, we don't go clubbing often, and certainly nowhere you'd like." She was clearly hiding something. His younger brother senses were telling him that much.

Before he could pester her more, she spun and whipped him with the towel wrapped around her head. "All yours now." Then left him to wonder on how own. Or at least to gargle menacingly at her.

Cici had work, he had the day off. Which meant he did a few things around the house Mom needed, then kind of bummed about. Which was dangerous thing to do. Since it left his mind to wander and roam. What was his sister doing and why was she hiding it? Couldn't be drugs, wasn't her style. She wasn't a wild party girl either, so the ruled out late night club sessions. Not to mention a number of her friends were getting married. Which Cici herself had said was a bummer since they couldn't hang as often.

So, if she wasn't hanging with friends, and wasn't being wild party girl, what was she doing?

"Gotta be a cult."

Marty looked at his screen as the message pinged. He made a face at Bo's reply, "A cult?" he typed out with a confused emoji.

"Yeah!" was the immediate reply. "One of them like super kinky sex cults." Marty sigh as Bo rolled on. "You know the type. Robes. Mask. Secret handshake at the gates of some big mansion. Sex cult!" The messages popped off quickly without regard to punctuation beyond using the Send key.

He rolled his eyes, "No way she's in a sex cult. Little Miss Straight-lace wouldn't get into that sort of thing. Besides, where would there even be such a thing around here?" Unlike Bo, he kept his question contained to a single post. Then it was just a matter of waiting as Bo began to type. Deleted. Began to type again. On repeat for a couple minutes. "Wonder if I woke some sort of obsession of his," he muttered to himself. Bo was balanced enough most of the time, but then would have these odd conspiracy things he'd come up with now and then.

As if summoned by the thought, Bo began to post link after link. All to somewhat sketchy, probably ad-filled sites with all sorts of odd theories. "Did they take notes after looking at a cooking blog or something?" He wondered to himself after skimming one of the articles. Something about alien creatures spotted at the Gardivine Manor. The next one was about the Mayor and his secret cult of elites that would gather on new moons. Alongside a calendar with today circled in eye-searing red showing the new moon. It was all...

"Yeah, this is all a crock." He sighed and rocked in his chair for a second before checking the clock. Marty leaned forward, "Shouldn't you be getting ready for work?"

Another flurry of typing and deletes before simply. "Shit," and Bo went offline.

Marty shook his head and chuckled. Firing up a game, he began to putz around some. Kind of aimlessly wandering and taking care of objectives. Though it still itched at the back of his mind. What was Cici getting up to? The sex cult thing was goofy beyond measure. Again, drugs were out of the question, she was too normal. Besides, nothing had gone missing around the house and she hadn't been acting strange.

Right?

"Well," he mused to himself, "she has been like whistling more. Then those odd chirps..." He turned to the internet and searched, "Drugs that make you whistle and chirp." Which turned up no results. Surprisingly. "Chirping when you whistle," was his next search. Which turned up nothing. Again. Outside of some strange medical site that was trying to link it to... Yeah no, that was some other conspiracy thing trying to link it to fluoride and vaccines.

It had to just be something weird, some new habit she picked up. His mind was circling on it though. He was certain that she was hiding something. It couldn't be something too bad or too dangerous. She wasn't really acting out of character. Even if she'd gotten a strange, colorful and cartoony tattoo.

"Cult, cartoony tattoo..." he didn't bother to search for that. It was way too out of spec and line there. Marty sighed and stretched out slowly, throwing himself into the game to try and distract himself before his mind circled too much.

He was too distracted to game. Marty sighed and closed the game down. His mind kept racing and cycling around as he peered at the list of games. Yet his mind kept coming back to that question. What was going on with her?

Frustrated, he turned off his game and retired to his bed with a sigh. "Why is it bothering me so much?" he muttered quietly. At least it was getting his mind off…

He banished that thought before it could drag on him too much. Sighing, he just rolled over, closed his eyes, and focused on breathing for a bit. Maybe if he could calm himself down, he could make his stupid brain stop obsessing over what his sister was getting up to.

A sharp knock made him jolt, "Dinner." Cici leaned against his door with a slight smirk. "What, spend all day lazing about?"

"I guess," he yawned and gave a stretch, "brain felt like it was going a mile a minute."

She knocked again, "Yeah well, I know how you get. So instead, get your butt downstairs. Mom won't start unless you're there and I've got plans tonight." Cici flashed a smirk, "You know her rules, if we're not all there, it's not dinner. Even when it's just pizza."

"Yeah yeah," yawn, stretch, and stumble out of bed. "You're going out tonight?"

She practically bounded down the hall, "Yep, been planning it all month. And no, you can't come along, it's not something you'd be interested in."

Some of the conspiracy sites from earlier tweaked at his mind. Cult gala under the new moon. The fake headline flashed through his mind. Again, he found himself looking at his sister strangely. She couldn't be into that sort of thing, could she? She was certain she couldn't, she wouldn't, be drawn to that kind of thing. Where would she have even gotten into it or heard about it? Sure, she worked at the city hall, but she was just one of the clerks there. Not like she was one of the movers or shakers or whatever type of people would be recruited.

No matter how much he tried to push it from his mind. It didn't matter on how much the song of pepperoni called to him. Tonight, his mind had decided to obsess over all this.

Fingers snapped in front of his eyes, "Space case." Cici whistled, then broke it off with a near chirp. He reeled back and blinked at her in confusion. "Mom asked a question."

"Sorry, what was it?"

There was concern on his mother's face. "Are you feeling okay? You've kind of been out of it today."

"Yeah," he waved it off, "Just having one of those days I guess. Trying to find a dozen ways to occupy myself, but brain is just," he waved a hand by his head and made a noise. "Dunno, caught in a loop or something today. You know how it is."

His mother shot a sympathetic look. "Are you sure? I can cancel movie night if you're not feeling well."

Marty waved his hand, "Nah, you go on, I'll be alright." Realization dawned with that. Tonight was her movie night with some of her friends. Cici was heading out as well. So she was probably asking if he'd be okay alone. He was a grown-ass man, but he could understand the concern. He was still her baby and all that, even if he could legally drink, had graduated college, and all that. "Probably just stream surf or something like that before I pass out." No sooner did he say that than a thought began to form and gnaw at him. "After a walk. See if that will clear my head."

Mom smiled, "Always helps with me."

Cici shrugged, "Nice enough night."

He began to stand up, paused. "Hey, your car unlocked? Think left my earbuds in last week."

Cici tilted her head, "Yeah, but good luck finding them if they fell into the mess."

Marty gave a dismissive wave and headed for the door. Shoes on, outside, and a beeline to her car. Sure enough, it was unlocked, but he wasn't looking for his earbuds. Those were up in his room. Rather, he looked into the backseat and sighed. "Absolute mess." It really did look like Cici just threw any thing she used in the back of her car. Not trash, but there were coats, hoodie, blanket, and more.

"Can't believe I'm doing this," he muttered under his breath and moved a few things around. It wasn't too hard to make a little spot in the rear floorboard for himself. The car had plenty of space back there. Just lay down, drape a blanket over himself, and that as it. The little bump in the floor didn't even bother him. That much.

"I swear, the things I do to keep my mind from obsessing over something." Hyper fixating was real and could be dangerous. Well, not dangerous really, except to his bank account on occasion. Worst comes to worst, he'd find out Cici wasn't doing anything interesting and then he'd have to Uber home. Wasn't like she was going to go on a road trip or something like that.

Thankfully, he didn't have to wait too long. Cici came out to the car after only a few minutes. He held his breath, waiting as she started it up and turned on the radio. Then just a quiet breath, holding as still as he could as she drove around. Wonder if I can figure out where we're going by guessing turns. The thought came to him about the time she took a corner and he nearly slid head-first into the door. That's a nope. He ground his teeth and braced hands on the door, feet on the other side. Trying to keep from making too much noise as she made one turn after another.

The ride went on for who-knew how long. Him bouncing, jostling, her speeding up and slowing down with what felt like reckless abandon. All while he was trying to keep from bashing against one side of the car or the other. After what felt like an hour, the car slowed and stopped. He held his breath again as Cici got out and the sound of shoes on gravel retreated into the distance.

Even then, Marty held himself as still as possible for as long as possible before peeking up. She'd parked just off some grand driveway. Off in a space clearly set aside for this sort of thing. A dozen or more cars surrounded them. Lights leading a trail up to some big house. "Is that Gardivine Manor?" he muttered to himself. He'd heard of the place, who hadn't in their town, but had never been there. "Oh great, alien cult. If Bo is right about this, he'll never let me hear the end of it. Then again, he doesn't have to know about it."

A look around showed that he was alone for now. There were people on the path, clearly coming from other parking areas or just wandering the grounds. Most were dressed in regular old day clothes, others wore robes. Least it looked like robes, but it could be his imagination. Marty eased out of the car as quietly and sneakily as he could with the dome light flaring to life, and his legs half-asleep. "Don't be suspicious, don't be suspicious," came the breathy chant as he fought himself between simply walking up to the front and trying to avoid everyone. This somehow lead to a meandering path as he pretended to look around the grounds. Picking his way via the light from solar lamps staked here and there.

A gathering of people by the front door made him shy away from there. "If they've got some sort of guest list, then I'll be spotted immediately. Maybe a door or window?" These places always had other doors to the outside or some conveniently placed open window. Right? That's how these things always worked in the movies.

Thankfully the movies weren't wrong in this case. A little discreet wandering around and he found a side door that was open. Inside, well it looked like a hall. He could hear voices off in the distance. The soft mutter of conversation paired with some low music. "Okay, now where do I go?" Marty clicked his tongue quietly as he looked up the hallway at the... Seemingly dozens of doors that branched off the hall.

"Oh, did you get lost?" a deep, but friendly woman's voice rang out behind him. Marty froze, figuring the jig was up and he was about to be escorted out or black bagged or something. Instead, someone threw an arm around him and an older woman stepped beside him. "Don't feel bad, this place is like a maze. Everyone gets lost the first few times here. Which you must be new, I hadn't seen you before. You are pretty cute though. I'm Sophia and I just know you're going to love the party tonight!"

Sophia was about his height, looked to be about his mother's age, very matronly, and skin as dark as his was light. She radiated easy energy, chatting with him as she steered him down one hall and another. Amazing him just how much she could chat and talk without seeming to need a breath. Marty stumbled alongside her, managing to make little noises here and there as she carried it herself. Really glad she's not asking who invited me or something like that. He looked around, Not to mention that she's keeping others from asking what I'm doing here.

Sophia swept him in front of a door, "And you should be able to find something to wear in here. Don't worry about leaving your things in the open lockers. No one here's gonna take something that isn't theirs." She laughed, "Security would have a field day if someone tried that. Why, should tell you about that time some internet investigator person tried to sneak in here." The hand on his shoulder moved to the small of his back as she propelled him towards the door, "Grab a robe and mask, they're all clean, and remember what I said about the markings!" Before vanishing into another door herself.

Marty moved quickly to avoid any odd looks. Hurrying into the room himself. It looked, to all intents and purposes, like a locker room. Rows of old metal lockers, benches, and clothes racks full of clean, burgundy robes and masks on shelves. There were a couple other guys there who gave him a look, nodded, and went back to whatever they were doing.

Okay, be cool, just get undressed, get a robe, and... Wait, undressed?

He took another look and sure enough, everyone here was stripping down and picking a robe. He cleared his throat and tried to look purposeful as he walked to a locker and opened. Fiddling with his belt as he glanced around. A couple of the guys were looking at him curiously, almost hungrily. The hair stood up on the back of his neck. It felt like some predator staring him down. Not a sexual predator type thing, but like some big cat or something was giving him a once over. It was hard to explain.

Undressed he… didn’t feel like much to look at. Not ripped, not chubby, just kind of average. More average build than a couple of the guys here. Not that he was actively looking, but he couldn’t help but glance at them out of the corner of his eye. Which he didn’t want to be weird about it. Certainly didn’t want to think about whatever implications there were for the looks. Just get dressed, hang out in the back of wherever, and watch. That’s all you have to do, nothing more. Shoving his clothes into the locker and getting up to go to the robes.

They all looked… the same. Some odd wine color with trim, kind of like a bathrobe more than anything you’d slide over your head. He quickly grabbed one that looked like his size and pulled it on. Tightening it up with a cloth belt. There were slippers as well. Just the type you’d see for cheap house shoes. Warm, comfortable enough, but nothing special.

And then there were the masks.

He’d expected some sort of full face, metal type thing. You know, the type you always saw in these movies. Usually either gold or like some unsettling off-white type color. Porcelain or something like that. Instead these looked more like the type you’d get at some sort of Mardi Gras. Feathers, sequins, some full face, some half. Each with a distinct look and patterning to them. Each lined up on shelves with others of similar patterns. Thankfully, each shelf was labeled. Thought the labels were a little odd. “Pan bottom?” he muttered to himself, “Gay top?” there were a lot of those masks. Soft footsteps, bare feet on tile, came towards him. Without really looking, he just grabbed one from the ‘Straight bottom’ pile. A roughly oval mask that would cover the top half of his face. A deep, satiny black with gold markings that swirled and danced over it. On went the mask and he walked out of the room. A nervous twinge in his belly.

“There you are!” Sophia greeted him with a wide grin. Her robe tied very loosely around her body and a mask of deep purple and dancing greens, which swept up to cover part of her forehead and nearly vanish into her hair. “Was worried you got lost in there,” her voice dropped into a sotto, “or got started early.” She clapped him on the back with a laugh and moved her hand to the small of his back. “Don’t want you getting lost again, come on. Oh this place has so many halls, it’s easy to get lost around here.”

There was enough of a pause, it felt like maybe she was waiting for him to replay. “Y-yeah, never been in a place this big.” He laughed, “Well, aside from school, hotels, and…” he rolled his hand awkwardly, “stuff like that.”

“Oh I bet, this place is a bitch to run. Even worse to pay the heating bills.” She all but cackled with a laugh and gave his back a pat, nearly launching him into a great, open room. “Go mingle, I’ve got some people I gotta talk to. Though I’ll come find you later.” She gave a wink and sauntered away from him. Leaving Marty confused and wandering.

The… was it a great hall? A ballroom? He certainly didn’t know the right label for such a place. It was, well, massive. Made a gymnasium look tiny by comparison. Tall, vaulted ceilings had plenty of lights all but hidden behind elaborate chandeliers and other decorations. Light seeming to come from everywhere and nowhere. Long tables had been set up at various points throughout the room. Laden with snacks, drinks, and other things. What got him most was the various couches, chairs, strange apparatuses he couldn’t begin to name, and…

Beds.

So many beds.

Queen sized, king size, round ones, his head was practically spinning as he looked from one to the next. Some were just mattresses on frames. Others had headboards, poles, straps, and other things he couldn’t begin to think about on them. He could guess at what few of them were. Judging by the leather and fur cuffs here and there. Though a few were strange in ways he couldn’t quite place. Something about how the stuff was all set up just made his brain wonder on what was happening.

“Gree...SCMNNNNN!” Marty jumped at the noise, but so did a lot of people. Someone was standing on a raised platform, holding a microphone. “Sorry, sorry!’ they laughed and tapped the mic, “Good? We’re good?” He held a thumbs up, down, back up, looking towards someone beside him. They gave a thumbs up, “Alright. So, welcome to the party, I know everyone is eager to get started. No real business to take care of, right?” He looked off to the side again, “Right?” Another thumbs up. “Good. Right. Um, yes. So why don’t we get started?”

The person on the stand threw their robes open to reveal a rather pasty, middle aged guy. “By the light of the new moon, we welcome you!” He threw his head back and gestured at the ceiling. Marty, and everyone else, looked upwards as the lights faded. Curtains pulled back to reveal an odd gem set into a stone and metal tablet. Motors whirred and a skylight opened to reveal the moonless sky. “May our true selves be revealed!”

Light flared from within the gem and began to pulse. Slowly at first, then rising. Marty felt strange, dizzy, his head light. He stumbled a half step and put his hand to his head. Around him, other people were doing the same, others still stood their ground and lifted their hands. The pulsing light filled his head, synchronized with his heartbeat. He could feel it inside him. Thrumming, flaring, fading, something warm flowing through his limbs. It spread further with each beat, every second. As if his very blood was taking the light in and spreading it throughout his body.

His skin began to crawl. First just hair lifting, as if he had goosebumps over his entire body. Then it began to writhe and twist. Shuddering one way then the other. He looked at his own hand and could swear that, under the light, his flesh was moving on its own.

Then, something strange. His hand began to grow darker. Not blackening, but turning a velvety gray. Fingers twitched, thickened a little, almost looked as if they were going to melt together before splitting again. It itched, but he couldn’t bring himself to scratch it. He only stared in strange awe as his flesh rolled and changed before his eyes. Fine hairs all but disappearing as his flesh took on a strangely shiny hue.

Shoulders rolled as the sensation crawled along his shoulders and back. Stunned, Marty looked as the smooth gray flesh crept up his arms. The robe’s soft fabric tickled against his body as the changes moved up his arms, across his shoulders. He could just see the flesh along his chest start to change as well. Turning a lighter white in color. A shift made the robe slip on his body. Sliding to reveal that the white transitioned to a soft wheat, kind of gold color on his shoulders. All before his back began to itch and roll. Making him turn and twist his shoulder blades.

It felt like an itch he couldn’t quite scratch. As he reached back without thinking, he felt a protrusion. A smooth, triangular growth that was slowly growing out of his back. Pressing into the robe and drawing it further from his body. Further down, something was sprouting from his spine. He reached and twisted, feeling a strange growth, something that felt like… A TAIL?! He twisted and saw a shape pressing against the robe as it grew. It only took a moment before the pressure overcame the loose knot in the cloth belt. Tail flukes burst out from under the cloth and flipped up and down as the tail grew behind him. With a whisper that grated against his senses, the robe fell open to reveal more of his body.

His feet had changed. Turning a little wider, toes webbing together as he watched. That smooth hide rippled over his front in waves. What chest hair he had fell away to reveal that almost impossibly smooth flesh. Pale hide spanned across his front, broken up by a few lines of stark black and that soft gray. Especially around his hips, where it curled and coiled. Following the lines of his body. Sprouting from the dark gray of his legs and up over his hips. Stranger still was his penis. It twisted, turned a more vibrant pink, growing longer, tapered, before vanishing between his legs. Dumbfounded, he reached down and felt… a pussy? It couldn’t be, because he could still feel his dick. He was keenly aware of his cock, tucked up inside this slit.

Marty gasped, but the noise rose and ended in a little squeak. A shrill chirp that rang out of his mouth. Except it wasn’t his mouth. It was one of those things like being told you weren’t aware of your nose. Then suddenly seeing it at the edge of your vision for a moment. He hadn’t noticed that his nose had grown longer. The same soft gray as his arms and legs, chased with black here and there. As he blinked, he could almost see glints and hints of gold at the edges of his vision. Had the mask changed with him?

One hand still on his groin, the other reached up and felt. Nothing. There was no mask anymore. Had it fallen off and he hadn’t noticed? Dully, he looked around at his feet. There wasn’t any sign of it, but he couldn’t be sure. Not with the shifting and moving shadows around him. He let out another squeak, the noise low and curious. A beat later something hit him between the eyes. Some new sensation that made the floor almost sparkle… not in his eyes, but kind of behind them? As if he were seeing his surroundings differently.

Looking up, he could see the same sparkle about him. As people murmured and moved, there were hints of that sparkling about him. Outlining shapes that were no longer human, yet still humanoid. Feline shapes, equine, faintly canine, they were too many for him to process at the moment. People were shedding the robes to reveal their new bodies. Male, female, non-binary, and more. They began to drift together with various noises. Touching, petting, kissing, and…

Oh god, he was in a furry orgy.

Except he wasn’t at a convention and no one was wearing fursuits.

His eyesight wasn’t terrible, but the room’s lights were low. Glittering behind their covers like a field of stars. He looked around, catching details here and there. Wings, tails, fangs glistening as they met lips and cocks and pussies. He took a breath, but his nose wasn’t the best. He puffed, but didn’t pick up much in the way of scent. That being said, as those around him began to get more heated, their moans and slurps and other noises began to paint more pictures. Glittering, wavering outlines danced around them.

“It’s a lot isn’t it?”

The voice was musical, almost playful. He turned and found himself staring at a dolphin with bright eyes. Not like your stereotypical gray, bottlenose Flipper type dolphin. She had coloration like he guessed he had. Dark black and gray on her back and thighs. That golden hue along her cheeks, neck, and shoulders. Pale, almost luminescent white front. Strangely, her face stood out. Markings, not unlike a mask, framed her face. Rich black framed with golden swirls and hints of deep green framed her eyes and stretched across her like a crescent moon.

A front that was very bare and exposed to him. Breasts that weren’t large, but not small either. Seemingly just the right size to fit into the curvaceous, smooth shape of her body. She almost posed for him, a smile on her lips, and a playful light in her eyes. The woman whistled quietly and clicked her tongue. The sharp noise hit him and shivered over his body. “First time?” she smiled at him. Words rippling over his body. He nodded and she crooned, “Focus on me and,” she clicked her tongue again. He did as she asked, then gasped as her body almost lit up. “Sonar, nifty isn’t it? It’s so much better underwater though.” She rose up on her toes and squeaked again, “Might be too cold for that tonight.” Warm, soft hands pressed to his chest as she stepped in. Her nose bumped into his neck. “You know, it’s not often I see another common dolphin around here. Do you want to maybe,” her hand ran down his front. Using just the very tip of her fingers to glide over his supple skin. She breathed out the words, “Break you in?’ as her fingers found his slit. Two slid along the outer lips, pulling him open just so. As others hooked in just right and brushed against his cock. The mere presence of her fingers enough to make him gasp and stumble back a half-step. Head reeling as his length erected faster than it had since his mid-teens. “Take that as a yes?” she breathed, words flowing across him and making her sparkle in the low light.

“Please,” he gasped and clicked. Her body sparkling in his new senses. Her laugh lit up whatever sensory organ told him about his sonar.

“Since you said please,” she moved her hand up his shaft slowly. Playing with the curved taper of his cock. Squeezing the base ever so gently before sliding up to the tip. Without even thinking, he felt his length move and curl, flexing against her touch. She hummed pleasantly and stepped up close to him. Lips almost touching his as her hand roamed over his chest.

A shove sent him backwards. She was stronger than she looked, and he was most than a little off balance. His thinking brain quickly shutting down as his lower brain, IE his cock, took over. What a time to let my cock to my thinking for me. All that time at college trying to keep yourself good and whole, and now here we are. Lydia wanted to do this, but you wanted to hold off a little more. She found someone else, and now you’re about to fuck a dolphin person. What weird fucking circumstance.

All those thoughts happened in the second it took him to stumble backwards, legs to hit a wooden frame, and him to fall back into a bed. Instead of hitting with the expected, cushioned bounce, his body sank into the mattress. A warm chill spreading over his back as a low slosh filled his senses before he was lifted up again. The mattress strangely moving and swirling under him. A waterbed? Who still has those things at this...whoa!

Whatever thought and question he might have had fled as he felt a tongue sliding over his cock. Marty lifted his head and looked down at the stranger. She knelt at the bedside, smiling up at him as her tongue slowly traced over his cock. “You know, male dolphins have this fun thing with their cocks being able to flex a little. I don’t think it’s fully conscious though.” Her tongue reached his tip and danced. His tip responded by flicking up and down, almost swirling with her tongue. “Is it?” he shook his head. “Pity, could be real fun if you can aim it. Though that might be instinctive…” she trailed off as she opened her mouth and calmly took his entire cock into her long muzzle.

He had played with his cock before. What guy hadn’t? He’d even gotten a handjob from Lydia back when. She’d gone down on him too, but they had to abort because people came back. There was something vastly different from the feel of that human tongue and this cetacean tongue. The way this stranger moved her head, tongue curling around him and sliding over, how her teeth just barely brushed him, and just everything else. It had him gasping, lights dancing and flashing behind his eyes. Hips lifted to her face, a hand came down to rub her smooth head. She moaned in pleasure around him, making her conical teeth vibrate just so. Marty lifted his head as he felt his finish boiling up after mere seconds of this. His mouth hanging open as he looked down at the female before him.

And froze.

There on her bare shoulder. A rather vibrantly colored rainbow stretched out over a dolphin that was leaping joyously out of some nebulous source of water. All done in vibrant, bright colors and in a faintly cartoony style that was so familiar. It peered up at him with bright, inked eyes. Challenging him, daring him to recognize it.

Two things happened at the same time. First was the realization that this had to be his sister. Cici was kneeling before him, as a dolphin, giving him a blowjob. Before that thought could fully register, the second thing happened.

He came. Oh how he came. Blowing his load with a force and vigor he hadn’t felt since that one time he’d teased himself for a good three or four hours. Working himself to near peak only to back off again and again. All while watching some long video, challenging himself to last until the end of the exceptionally long porno that went from scene to scene. When he’d finished that time, he’d peaked with enough force that he’d splattered some on his face and even the wall behind him.

That paled in comparison to this.

Cici hummed happily around his cock and pulled back as his climax dribbled down. “Dolphins don’t really last long when it comes to sex. Many animals don’t, in fact. That little human edge does give us an advantage. Although,” there was a smile, “no guy can cum as hard as a dolphin bull. Like a jetstream or supersoaker, sploosh.” She smiled up at him. Marty was too stunned, breathlessly panting as pleasure jangled and coursed through him. He didn’t fully register how she grabbed his legs and swung them up onto the jiggling bed. Barely noted how she joined him. Sleek body pressing him down into the rolling surface of the water bed. His senses did start to return as he felt a decided warmth against the belly of his cock. Cici arching over him with a sigh as she pressed her pussy down to his cock. “Now, females? We have kind of a cervix near our entrance. Keeps water out, but also makes us tight. Then there’s the muscle control…” she grinned, “You’ll find about that soon enough.” Pale folds flushed a deep pink with her arousal. “Of course, the benefit for dolphins is that quick recharge.” Sure enough, his cock was hard and raring to go.

One hand on his chest, her other snaked down to grab his cock. Before the thought of words could form in his head, his own sister moved. Her transformed body arched, lifted, moving with the wave-like motions of the bed under them. She expertly guided his cock up against her bare slit. Hovered for just a breath, then sank down. Her warmth enveloping his cock as she drove herself down to the very root of his cock.

Time seemed to slow for that moment as the impact rippled out. It raced along his body, surged through the bed under them. He felt his spine rolling with the waves of the mattress. Those sensations racing against the raw pleasure of a tight dolphin pussy wrapped around his decidedly phinny cock. Taper surging inside her as it pressed against her depths. She was tight, she was more than tight! It felt like the base of his cock was in a fleshy vice that threatened to clamp him off there. Her body arched over his as her mouth opened in a squeal of pleasure that only highlighted her form more.

His sister’s form. Was she still his sister? Was he still human or had the rules changed with this new body?

Any questions he had faded as her hips moved. Not pulling away. No, that was too ordinary, too human. Instead she ground against him. Hips gyrating a second as her insides clenched and rolled around him. It felt like two incredibly warm, slick hands sliding up and down his length. Massaging every inch he had buried inside her. Some instinct made his groin muscles tighten and his cock shift inside her. Drawing another squeal from the dolphin cow as she fell forward.

Cici wrapped her arms around him, locked their legs together, and begin to grind. Using the rebound and slosh of the mattress to basically swim against him. His body responding in kind, legs and tail pushing up awkwardly. Shoulders dipped and lifted as he ‘swam’ against her in turn. Her beak pressed close to his face, one hand tucked firmly between them. Fingers drumming against their union, playing with her pearl. Sweet, blissful noises coming from his older sister as she squirmed and pushed against him. Squeaking, moaning, gasping into his ear.

Marty’s eyes rolled back as his body betrayed him. In seconds, before he could form a protest, try to resist, try to hold back, anything! He twitched again. Cock squirming and lashing against her core in a way that made Cici hunch and squeal. Another twitch, then a deep drive as she arched over him. Just as she started to vocalized with a, “CUMMING!” right against his melon, he peaked as well. Eyes rolling back in his head as his cock twitched and surged deep inside her. Powerful muscles grabbed and pulled. Jerking him deeper into her as it drew his seed into her waiting core.

Breasts and smooth body pressed to his slowly. Grinding into him, all while her vagina clenched and pulled. Coaxing him to empty himself into her, making his already intense climax that much more blinding. When she pulled back, he gasped and huffed. “Well,” Cici announced with a grin as she leaned back. Fingers spreading her pussy to show the cum that drooled from her. “that was a great round one.” She gave his cheek a pat, “I’m gonna go fuck around and find out what else is there! Back later, Flipper.”

He started to sit up, but the bed fought and sloshed against him. “Wa…” he looked around, but Cici’s dark form had all but vanished into the crowd of writhing and pressing bodies.

“Oh I hope you ain’t done.” A familiar, energetic voice rolled against his senses. A new woman approached, all grins and licking her lips. A hyena of some sort, but with a familiar pattern on her face. Purple and green, surrounding her eyes, tracing up her head. Sophia? He stared at her with wide eyes, spotting how muscles moved under her coarse fur, heavy breasts swaying as she approached him with a low grumbled, “Cause I want a bit of that phin too…” that turned into a mooing, “Mroooo…”

Marty… was not sure what all happened that night. After a while, it became a blur. Memories were fleeting shades that danced through his head. All he could recall was that, at some point, he’d made it back to the locker room and retrieved his clothes. Outside, past more bodies, back to the car, he’d crawled into the backseat and fallen asleep under a blanket.

Now it was daylight and he stretched slowly, cramped and aching. He groaned and ran his fingers through his hair.

Hair! He looked at his hand, fleshy colored, down his naked body to his cock and balls. He was human again! Joy shot through him as he sat up and looked around. He was in his bedroom. Had it all been a dream? What a weird fucking dream.

A rap at his door made him pull a blanket over his body a second before it opened. “Can’t you wait until I say come in?” the response was immediate, but at least he was mostly covered.

“Pff, not like you’ve got a girl in here.” Cici stated as she stuck her head in and looked at him. “It’s lunch time and you’ve been asleep all day. Have a rough night?” She stepped inside and shut the door most of the way behind her.

He made a face, “It’s a matter of privacy, and plus I’m not decent.”

Cici made a dismissive gesture. “Nothing I hadn’t seen before, Flipper.”

Marty froze. Cici smirked. Then she clicked her tongue, “You have some explaining to do. Like why Mrs. Sophia wants your number.”