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It was day one of our family holiday, and I was already blue-balled so bad that they were aching.

How could it have gotten so bad in just twenty three hours of travel? I blame Kyrie. If I asked her, she'd also probably blame herself. I'd been so embarrassed when she noticed me sticking out on the subway—but it was all because she'd been rubbing her ass against me. And again on the shuttle. She was scared of atmospheric flight, so she sat in my lap. Had it really been necessary on the first jump for her to hug me the whole time? I guess zero-gee is difficult to get used to the first time, but still it'd had an effect. And now I couldn't put it away.

We'd finally made it to the Star Princess. Look at those views! The nebula spanned as far as I could see through the wide bay windows. The artificial gravity was a perfect point-nine-gee to make everything feel like slightly less exertion without being problematic for circulation. The bulkhead doors were perfect sound dampeners, so the distant thrum of jump drives I'd felt when I first boarded had disappeared entirely. This liner was luxury, through and through.

And as one would expect, our family couldn't afford luxury. At least, not that much luxury. Even though my sister and I had been saving for years for this, we still could only manage the shared accommodation. With all our effects in bio-signature locked safes, we finally had a moment to relax.

There's a a magical moment when you've been on the proverbial road getting to your destination—and then you're there. No more crowded shuttles. No more shoulder-to-shoulder transports. No more pushing through other travellers to get to your exit while carting baggage by shonky wheels that refuse to follow you. No more loud tannoys interrupting every moment of relaxation and bringing you back to the here and now.

I laid back into the foam mattress and bleached-white sheets over the guest bed I'd been assigned. It wasn't a huge bed, but it'd do. If only I could get the constant semi that was poking out of my sheath to go down.

It glared up at me accusingly. I'd had a female brushing her tail against it. Then she'd sat in my lap. Then she'd wrapped her legs around my waist. Why had I not done what was natural? It throbbed desultorily up at me. The pointed tip dripped, and I could see the hint of my knot bulging my sheath behind it.

Because she was my sister, of course! Stupid dick. That's not how 'natural' works. I couldn't just hump her—and especially not on public transport! Talk about rude, not to mention morally wrong. I fingered my sheath, if only so my knot wouldn't get stuck in my sheath. From previous experience, it was an unpleasant situation.

“You know, you can take care of that, if you want. I won't mind."

Kyrie was across the room in her own bunk. Nope. Nope nope nope. She laughed at me when my ears folded down.

“Holy shit, Colbey. It's okay! You are such a fucking stick in the mud. I'm probably gonna jill myself off later when I'm feeling it. We're sharing a room for the next month, so you're eventually going to have to get good with me being around. Unless you're planning on spending the rest of our holiday dripping all over the hallways?"

I averted my eyes so I didn't have to look at her amused smile.

“I'll turn around if that'll help. Think I'm gonna catch some sleep now anyway. Fuck, that was a long day." She yawned so wide I could see her tongue curling to lick her teeth along her upper jaw. I reached across the aisle between our beds and helped her by un-flipping her ear from where it'd been inverted and she hadn't noticed. “We've got the 'executive dinner' in the Princess Cantina tomorrow night, bro, and you better make sure that thing is put away. Or satisfied. Or whatever so you're not giving everyone the pink show. Deal?"

She folded down into the sheets. Even though she had long arms and long legs, there really wasn't much to her body when she curled up. To be fair, same for me. It was a coyote thing. Rangey dogs, we were, with none of the bulk of the bigger examples of our phylum. I reached over and tucked her tail in, and she squeaked a tired thanks to me.

Family holiday, eh? Well, it was. It was all the family we had left. The two of us alone versus the world, as it had always been. And there's no one I would have rather been here with.

Even if it did mean my dick was going to have to wait for another night. Because I wasn't going to—no, I couldn't. Not with her just a few feet away. It gave me another desultory throb as I pulled the sheets up. No, you're going to just have to wait.

I turned over in the bed and faced the wall. It took less than a few minutes for me to finally fall asleep.

I dreamt. We were packing into the public transportation at the local stop. Kyrie was holding my hand. She was just as anxious as I was. I was holding our big case in the other hand, while she negotiated with the conductor. No seats left, which meant our first four hours were going to be standing. Ah well, it'd all be better when we got to the Princess.

She held the handle, and I held her. There was barely room for shoulders in the train, so she was snuggled back against me. Her tail battered my belly while she had trapped my sheath between her thighs. Such a tease. She was always causing me trouble. I could feel the heat of her muff just inches away as she casually rolled her hips. Damn, she was doing this on purpose.

I felt a hot kiss. There was something super-real about it—as if I were aware that I was dreaming, but also that this was more real than everything else as warmth spread around my tip.

We were on the shuttle, and there was only one shoulder harness for launch. I could hold onto the handle—it was fine. But she wasn't having it. What if there was a problem? What if…

There was no 'what if'. There were hundreds of launches per day and it'd been decades since the last accident. We were safe. But the brain can't tell the heart that everything is okay. The heart isn't listening. So she wanted me to hold her as the momentum of launch pulled her down into my lap. Oh, fuck. That wasn't fur. Was she sitting right on my sheath? No, no. I can't be doing this.

The feeling of soft flesh sinking down around me was too real to ignore. It wasn't just a memory. It wasn't a memory at all. I had shifted her in my lap so at least I wasn't poking up into her. She laughed and kissed my ear. She called me a silly puppy. Never could control it, could I? Her tail tickled my sheath again, and then we'd sat that way for hours. Me with an embarrassing stiffy, and she hiding it from anyone else on the crowded shuttle noticing it.

The sensation of something kissing my cocktip was helping to pull me out of dreaming. But what really woke me up was Kyrie's shriek. I jumped in my bed. Or, at least half of me jumped. The other half was under something hot and fuzzy.

“What the hell?" I mumbled, using my one free hand to wipe my eyes.

Kyrie yelped from across the room again. “Colbey, there's an animal in my bed!"

A soft voice, comforting and mellow, filled the room. “So sorry to startle you. You did purchase shared accomodation, did you not?"

“Colbey, there's an animal in my bed, and it's talking!"

“Excuse me. I would appreciate if you stop calling me an animal. I'm a registered engineer on board the Princess, not some mindless creature."

There was a moment of refactoring as both me and my sister tried to acclimate to the new information. While that happened, the body laying on top of my arm and snuggled back against my belly shifted and I heard a slightly higher-pitched voice speak up. “Sorry to wake you two. You were both completely out when we came back to our quarters, so we figured we'd let you sleep and do introductions in the morning."

“Intro—hold on a second. Something's wrong here. This is our room." My head felt fuzzy, and I felt a soft shifting as my erect cocktip slid free of the cuddly-soft creature that had climbed into my bed.

“It is! Of course, it's ours too. That's the nature of shared accommodation."

“Uh, Colbey…" I heard from across the way.

“Kyrie, don't worry. Some mistake. Obviously. We'll sort it out."

“Yeah." I saw her sit up in the dim light. She yawned again.

“Apologies if there was some misunderstanding." The deeper voice comforted us. “Many of our guests find it comforting to have companions for their holiday."

“Didn't you say you were an engineer." I asked.

“Yes. During the waking hours while you're enjoying the Princess' luxury fare, we take care of the maintenance. And then after our shifts are done and you come back to our room—sorry, your room—we are here to share your experiences from the day."

“Wow. That sucks." Kyrie wasn't sugar coating it, was she?

“So sorry, ma'am. If you'd like a private cabin, I'm sure we could—“

“What? No! Sorry, I'm still sleepy. That came out wrong. I meant it sucks that you're working all day long, and then you have to come back and keep serving us even on your time off. Holy shit, At least I hope you're making a fucking mint from this company!"

There was a chittered laugh, and the body that was snuggled up against me shifted as it—no, she—properly woke up. “Don't worry. Our species is very social. Normally our family unit would be curled up together in the twenties or thirties come night-time. The only reason the shared accommodation package is available is because we and the other engineers threatened that we'd quit if they didn't give us proper treatment."

“Oh. I mean, couldn't you snuggle up to the other engineers, then?"

“Curl up with other family units?!" The voice trilled into high squeaking. “Absolutely not! I know you didn't mean to be rude, but there's old biological problems there. WrongSmell means there'll be fighting. No, that wouldn't do."

“I see." I tried to disengage myself from the cuddly creature in my bed. I still couldn't get a good look at her. When I pulled away, she rolled to put herself back into contact. “I'm not sure… I'd have to check with Kyrie. This isn't what we signed up for."

“As I said, we could inquire about private quarters if there was some mistake. That would include additional cost, of course, but I'm sure we could find a way to make it work." The one in Kyrie's bed lifted his head and I was finally able to get a good look at him.

The closest facsimile I could come up with was “Weasel." Or maybe otter. Marten? He had features of all of them simultaneously, without actually being any of them specifically. Longer face than a fisher. Longer limbs than a marten. Wider ears than an otter. But for all the mismatched parts, the overall effect was pleasant. And based on the similar body cuddled against me, I could also confirm that they were remarkably soft.

“Don't you dare, Colbey!" Kyrie squealed. “If I'd know this was an option, I would have demanded it!"

The creature in her bed gave a happy trill as she wrapped her arms around him and pulled him back into the mattress. The two of them tussled beneath the sheets for a few seconds before her head popped out near the side. “Have you hugged the one in your bed? Holy shit, they're so cuddly!"

Yes. Yes they were. That was sort of the problem. I tried to adjust myself so I wasn't poking into my “companion's" thigh as she settled back down into the mattress with me.

“Think you can let me have this, Colbey?" My sister begged. She even worked up a good high-pitched whine. I sighed. What choice did I have. This was her holiday, too. And it's not that this wasn't nice. It was nice.

Now if only the blue-balls that my sister had left me with would stop aching and give me peace, because my little man wasn't going back in his sheath no matter how hard I tried, now.

“Fine. Okay. We can do this, if you want." I acquiessed.

I lay myself back down and felt the svelte body slide back against me again. A vaguely feline face turned itself back towards me and pushed under my chin. “You're Colbey, right? If your sister hadn't kept calling you that, I also read it on the room manifest."

When I nodded, she gave my chin a lick. “I'm Athena. Just let me know if you need space, okay? I know my brother and I can be a bit much the first time. Most guests say it's worth getting used to, but it can be a bit much until you're acclimated, right?"

“It's okay. I'm used to close quarters. It was the same back home, too. Just, ah. Sorry for. Uh. Poking you a little. It's been a long day."

“I don't mind." She settled down, laying her head on my arm again. “Talk more in the morning, okay? Launch days are always long days for us."

“Sure. Sleep well."

She settled down and her body fit itself to mine. Oh, it was going to be a long night.

-

Morning started with a soft glow that suffused our room. By the time I was fully awake, details started to fill in the story I had missed when we first got in last night. The quarters we were in weren't just occupied, they were lived-in. Posters in frames adorned the wall, and they weren't “Star Princess" themed. There was a small filing cabinet in one wall, and I could see paperwork unattended on top of it. The carpet was worn by clawed feet. They weren't in our room. We were in theirs.

Clearly, by invitation, but I had a moment of regret for how I'd acted last night.

Athena uncurled herself from my body and dropped down to the floor. It was only then that I realized two things about our hosts. First, they weren't upright like my sister and I were. Even though I could see thumbs on their forelimbs near their clawed paws, their body shape was clearly built for locomotion on four legs. While Athena had felt soft and cuddly last night, with gravity finally applied to her, she was more accurately what I'd call “lanky" rather than plush. She had short fur that covered wrinkles in her skin between her limbs and her tail. And to my great dismay, I could see a wet splotch over the top of her tail where I'd clearly been rubbing against her all last night.

She walked to the bathroom unity. No, not walked. Prowled. The only sign of her passage that I could sense was a slight tugging of fabric when her claws disengaged from the carpet. Her tail was curled high over her back, and I averted my eyes as that put a soft and inviting 'Y' under her tail on display. I mean, when I'd been asleep I think I'd accidentally slipped into there, but it still wasn't nice to stare. Not that my sister didn't have something similar beneath her tail, but at least her upright stature meant I wasn't staring right into it every time she turned around.

“I saw on your itinerary that you were headed to the Adrenaline District this morning before a dinner in the Cantina, right?" Athena asked. I heard the sputter of water, then a misty shower spouted down around her. That's when I put a finger to the other thing I realized about her. It wasn't weasel, or otter. Her body was too feline while she moved, even if her features appeared mustelid. No, she—and presumably her brother—were something else entirely.

I had a friend back in school when I was a kid that was always the butt of jokes. That was, until he'd torn one of his tormentors ears off entirely with his teeth during an argument. Then the jokes had stopped, at least when he was around. Fossa. That's what he was called. A fossa. Apparently some exotic throw-back species that wasn't really any of the above. And, if the jokes the kids were all making had any basis in truth, hung like a sex-toy modeler couldn't make up his mind and just threw everything together.

“Yeah." I called from the bed, getting my legs over the edge of the bed. Oh, man, it hadn't gone down at all. I stared down at my sheath, where a frustrated pink tip was drooling all over my nuts. “We decided to be smart about spending for the holiday. You know, put the money where it matters. You know, good food, access to the best parks…"

“And cheap out on the room, right?" That from the other fossa, who was slowly stepping down from my sister's bed. “Nah, don't say anything. I can see it on your face. Don't worry, the company charges what it can, so if it thought it could charge more to have people sleep with us, it would."

“It fucking should. Hell, I haven't had as good a night's sleep in years." My sister stretched, then reached down to hug the now clearly-male fossa around his chest, before letting him retire to the shower with his own sister.

From the shower, Athena snorted and shook water off herself as her brother stole position under the head. “Right? But hell, how do you advertise that? 'Come share a bed with our sweaty, overworked engineers. No, we promise it's nice than it sounds!'"

I laughed as a ran hands over my head and straightened out my ears.

“Fuck, you've really got that bad this time, bro." This time, Kyrie was being quiet enough not to be overheard. She was staring down at my sheath.

Not that we really hid much from each other, but this time I held a hand over my dripping tip. “Don't worry. Nothing a few roller coasters can't solve before we get to dinner tonight."

“Eh. You're gonna have to deal with it eventually, you know."

“Yeah. I know. When I get a little time alone, okay?"

As it turned out, that was not okay. We took the lift up to our destination after we'd had a little breakfast. The concept of “alone" just wasn't realistic aboard the Princess. At least, not outside of quarters. And with our unexpected companions, not there, either.

We got back just as the artifical sunlamps had dimmed from dusk to full-on night, leaving only the light of the nearby nebula glowing ghostly through the omnipresent external windows to add ambiance to the foot-lights that made sure we could find our way without tripping.

Kyrie was wearing a hat with faux-antlers, reading “Feel the RUT!" after her favorite roller-coaster. I was feeling pleasantly full after the combination performance and culinary experience that was the Princess Cantina. I was humming along with their hit song as the door to our quarters shushed aside, letting dim light into the otherwise darkened room. We were home late, so assuming our hosts were already asleep, we disassembled the assorted trash we'd adorned ourselves with during the day and shared a silent holding of each others' hands. I could feel Kyrie's breath next to my ear. It was a familiar greeting. A familial intimacy that assured each other that we were okay. Better, we were well. Thriving. Content. Happy. I could hear the soft sussuration of air through her tail fur as she wagged. It had been a good day.

Then we separated. My eyes had adjusted to the darkness by this point. I could see Athena laid out on the bed, the covers pushed aside. Her head was tilted up and looking at me. Waiting for me. Carefully, I climbed in next to her, and quadrupedal legs did their best to clasp at me. She gave me a bump of the head to my chin and purred against my throat. Then her body spun as she put me against the wall.

It had been a long day, though unlike yesterday it'd been a good one. Still, I was tired. It didn't take long before I was asleep again. But unlike the previous night, where I'd woken from dreams to find myself indecently poking into places I shouldn't, this time I was awakened before it became an issue.

Though while I was aware of it, I also wasn't exactly in a position to stop. With Athena curled forward towards the edge of the bed, her hindquarters had me pinned against the wall. And in the sultry grip of sleep, I was hard. Rigidly hard. Not just sloppy and drippy, but pulsing and tapping against her thigh. She was warm. Hot. I felt dampness that wasn't just my own drippiness. Something silky soft glided across the topside of my length. She shifted in her sleep and I felt it kiss my tip. Oh no. Not again. No. I wasn't going to take advantage of her like this. Not now that I was awake and could feel what was going on. Much as I would have loved to just do nothing—act like I was still asleep—I shifted my hips slightly so I slid down between her legs, rather than prodding against her.

But her fur was so soft. Even though it wasn't a tight grip around me like her sex was, I was so hard-up from my sister's treatment that even this was working. I bit my lip, if only so I wouldn't end up growling or whining or yelping to wake her up.I breathed hard through my nose as her tail wiggled against my sheath. Fuck.

When it happened, I felt her hips twitch. I couldn't control it. The soft fur surrounding my shaft was a ghostly tease that had me riding up to a twitching peak. After days of denial, it was a productive peak. Though I couldn't see myself between her thighs, I could see the little flashes as the soft night-time illumination glinted off of the pearly spurts of my seed as it spattered up onto her belly.

Without a tie, I lasted only a few moments of my peak before the high settled into shameful guilt. Our hosts had been so kind about letting us into their home. Even through the confusion of our inadvertant purchase of the tier of accommodation that put us here, I still shouldn't have been taking advantage of Athena like this. As if to call my shame to its sharpest point, Athena rolled against me, turning belly-up in the bed. I tried not to look, but I failed. She looked lovely with the splashed sheen of semen across her belly in the faint evening glow.

And in the guilty afterglow as both Athena and I drifted back to sleep, I heard a soft sound from the far side of the room. A subtle, wet sound of liquid pattering into fur, followed by a contented sigh.

-

The next day was a relaxation day. Kyrie and I left early to “sun" ourselves beneath synthetic lamps in the low-gravity swimming center. We watched as kids propelled up and out of the swimming pool in ballistic arcs that crashed back down into the sluggish waves.

“You're looking better, bro." She needled me after we'd been warming ourselves for a few hours. “Not even a hint. Which is probably a good thing, seeing as there's families around."

“You were right. I dealt with it. Shouldn't be a problem again."

“Not a problem for a whole month? Colbey, if I didn't know you better I'd think you were lying to your sister."

“Okay, okay, probably. But I'll deal with it, then, too."

“You talk about it as if it's such a burden. Sheesh, take some pleasure in your life."

I groaned. “I'm not having this conversation with you."

“Fine." She let it go. “What do you think of our companions? Apollo's a gentleman! I just want to take him home with us!"

I laughed. “Is that his name? Wow. Their parents must have had a theme going on there."

“I bet. So who's yours?"

“Athena."

At Kyrie's laugh, I flipped over and warmed my tail.

“She as cuddly as my Apollo is?"

“Oh, he's 'yours' now, is he? Have you asked him about that?"

“Yup! He even said it! 'I'm your companion!' he said, no shit. Maybe you should make it clear with Athena, before she decides instead that you're hers."

I breathed out through my nose. “She's got some competition. I didn't think you'd share!"

“Oh, I think you'll find me more than happy to share my brother."

“Is that so? Then why did you chase my last girlfriend?"

“She wasn't good enough for you, obviously."

“And the one before that?"

“Same."

“And before?"

“Julia? She was a bitch."

Yeah, okay, she had a point. “But Athena is good enough?"

“Maybe. Does she treat you right?"

I decided I wouldn't explain just how well she was treating me. I still felt guilty about it.

“Thought so. Now come on. I'm warm enough. Let's go down the zero-gee water slides."

So we did.

-

Midnight. I was woken by sounds this time. Soft, whispered sounds. But loud enough that they had my ears twitching.

“-tell him?" That was Apollo. His deep voice was soothing, but not well tailored to being quiet.

There was some mumbling I couldn't understand, until I could pick the next part out of the mix. “-shy. Is okay. Still love him. But gotta beat him over the head with it before he notices."

“Poor boy. Think you're ready for the next one?"

“Try me." I heard a soft hissing. Then a rather organic sound somewhere between a slurp and a pop. My sister let out a soft groan.

I was hard. They were fucking. They didn't think I'd hear them, but it was unmistakable. I felt Athena move against me. Then her head pushed up under my chin. Then she whispered, “Inside, this time. Please."

I went cold as I realized she'd noticed the previous time. But before the guilt stole my arousal, I felt her find my tip and slide her sex down around it. She was silky smooth. Just as smooth as that first night when I'd accidentally… Accident? No, probably not. Fuck, she'd been trying to get me inside this whole time. I wrapped my arms around her chest and kissed her snout. She purred for me as she slid down around me. Oh, fuck, she was hot. And wet. I felt her insides fluttering around me as she went.

Her lips met my knot. I shushed her as she ground down against me. “It's okay. That's enough." I whispered to her. She was smaller than I was. I didn't want to hurt her.

She purred as she leaned her head up to rub her cheek against mine. “Silly. You haven't seen Apollo." And then her hinds spread, and I felt the muscles working around my shaft relax, and wet heat engulfed my knot. Stretched and tight, her sex squeezed around my bulbs until I saw stars. She let out a possessive little growl and nipped my chin. “That's better. Where you should have been to start with. Silly puppy, painting my belly and leaking all over my back. This is so much better."

I cuddled her to my chest as my cock throbbed. Her forelegs pushed down against her belly, until I could see the faint outline of my own shaft pulsing inside her. She squirmed, clearly enjoying the sensation of my cum lubricating the way.

“Wait, so you and your brother—“ I whispered after the obvious struck.

“Of course. Any time there aren't passengers in here instead. Why, don't you and your sister?"

“No. Definitely not."

“Why?"

I let the question sit as I squirted into her. For some reason, I just hadn't thought about it in that way. I mean, she was my sister, of course. My sister, who would tease my sheath every opportunity she got. Who would try to get me hard in public. And in private. Actually, just about whenever she could. Who would spoon with me on trains, and sit on my lap on shuttles.

“Because I'm an idiot, that's why." I whispered.

I heard her chortle under her breath. Then from the other side of the room I heard another slurping sound, then my sister stood. I couldn't see much in the dim light. Though when she bent to get a towel from the fresh stack near the bathroom her tail went up, and soft pearlescence dribbled from her quim.

-

Day three, and neither of us talked about it. We rode the lift to the observation deck. Excited presenters pointed out the marvels of the nebula, with superimposed arrows and circles making sure we could see the subject of their explanations.

Then we rode the slow train that ran the entire circumference of the Star Princess, with stops for every major district and some of the fancier restaurants. We held hands as we joked about the cost of food, while paying that high cost willingly. We were on holiday. This is what we saved for.

And the whole time, her hand never left mine.

This time, we got back to the room early. Apollo was there, though Athena would be home later tonight. We gabbled about our day, and he enthused about his favorite parts of the ship. Kyrie sat on her bed, and the cat-weasel cuddled up to her.

“I heard you last night." I interjected while they were talking about food from the restaurant we'd visited today.

Both of them were silent for a moment. “Uh, sorry. We'll be more quiet next time."

“So there's going to be a next time?"

My sister gave me a steely-eyed glare. This is one thing we didn't intrude on. She might not have liked my girlfriends, but she didn't get in the way of me getting laid. Nor I, her. “There absolutely will be."

“Good." I laid back on my bed, back against the wall. Lifted one leg and bent my knee to plant my paw on the side of the mattress. “Bet he feels great. Athena did for me."

“Called it!" Apollo laughed, and my sister feigned a frown. “I knew she was too much to refuse—even if he is shy!"

“You wouldn't believe what he's got." Kyrie winked at me. “Two knots. Can you believe it? Two of them. As if one wasn't enough!"

“Clearly not. If it was, they wouldn't have made me." Apollo lifted his head in mock pride.

“Pfft. Seriously, though, you should see him." My sister said.

“I'd like to."

She paused. Her ears went back. Then came forward. I could see color in them. “Wait, really?"

“Yeah. Bet it's really hot."

She bit her lip and looked at Apollo, who was clearly waiting to see where this went. “It is. Uh. Colbey, are you sure? I know I've been teasing you a lot."

“Remember? I dealt with it. Or at least, Athena did. After a bit of convincing, at least."

“She's good at that." Apollo mumbled as he leaned over my sister. With the recent revelation still leaving her stunned, she fell over onto her side, flailing as the weasel-cat went with her. He disappeared entirely behind her, until his head peeked over her shoulder and one hind leg lifted and rested on her thigh. “Seems he's asking for a show. I'm game if you are, dear?"

Kyrie was still staring at me. “I'm still trying to figure out of this is a joke."

She wasn't going to believe me if I didn't make it clear I was crossing a line. So while she watched, and reached down and cupped my own sheath. Fingers rolled it down. I played with the tip of my cock, using it to spread runny natural lubrication over my finger pads. “Look like a joke to you?"

Her ears flopped back, and her impish little smile returned. Her legs lifted from the awkward half-sitting-half-laying on her side sprawl. She closed her legs, squeezing her knees together. Though that didn't seem to deter the feral beast behind her. He bit her ear, and I saw just the slim finger of excitement pushing between her thighs as he used her legs to unsheath.

The fossa's cocktip touched my sister's sex just as I was starting to rub my own. With the lights on this time, I could see subtle differences in girth and texture as the still-slim tip spread her lips. Kyrie let out a satisfied sigh, and I let out a little groan. I was half hard now. There was no denying it. Watching this was indeed quite hot.

I couldn't see much at any one time. Maybe that was her still hedging her bets that perhaps I wasn't being serious about this. Or maybe she thought that it'd be even hotter if I was just watching the reaction. If she'd engineered this intentionally, then she'd been right to do so. I had to take my hand off of my cock as I watched her slim sex bulge around what must have been his first knot, then slick back to nearly closed. I saw a lump in her lower belly where the first set of knobs throbbed inside her.

I tried, but I couldn't stay sitting there. Not when she was so close, and I could instead be seeing detail. Her head shot up as I stood. Apollo's forelegs clasped around her sides possessively. Probably an instinctive reaction. I kneeled by her bed and touched her with two fingers. She let out a warbling whine as I spread her lips. Only with her folds held apart could I see the slick fossa cock sliding back and forth between her lips. Up towards her head, Apollo whispered something. She nodded. Then a thick bulb pushed between her legs.

It must have been thicker than the first knot—or at least it was thicker now than the first knot was then. Rather than slipping through unimpeded, my sister's slit stretched without quite fitting it. I turned my head and looked up towards her head. She was looking down, watching me as I fingered her sex. She bit her lip again as I leaned in, and keened softly beneath her breath as my tongue flicked out and started to lick her.

There was a subtle, iron tang to the taste as I lapped over Apollo's knot. I could feel my sister's stretched lips to either side, though they were slack enough that I realized it must be the muscles just inside squeezing down that were really the thing keeping the fossa behind her from tying.

So instead of waiting for her to relax enough, I tilted my head up, used my tongue to locate the little nub of her clit. Then I carefully positioned my canines and bit it.

The reaction was immediate. She yelped. Apollo's knot slipped in with a familiar slurping sound that I think I'd heard last night. Kyrie's legs shivered. Then she squirted all over my face.

I took it for the compliment it was. While she was busy shivering and dripping, I licked what I could from my muzzle, then tried to dry my face with my hands. From over her shoulder, I heard a purring voice say, “Get your hand in there. You might want to feel this." And so I did. I got my thumb up against the base of Apollo's shaft just as I felt him throbbing. Then the soft, fleshy underside of his cock went hard for just a moment. Then back to soft. Then hard again. Ah, he was cumming in her. That would explain it. Kyrie shuddered again.

I slid my hand between her legs, and she lifted a knee for me. Fingers between both of their legs, I could feel the wrinkled, dangly nuts jumping against her rump. I could feel the slim tube of flesh running from the velvet-soft sheath up to where it disappeared into my sister. Then I ran my hand back, and Apollo purred for me. I got a couple of fingers across his taint, where I could feel his muscles tensing and relaxing every few seconds as he rode out his peak.

And then Kyrie shifted. There was an audible popping noise as one knot slid back out. The difference in size must have meant he wasn't going to stay tied. Just as well. I had plans.

But first, I did exactly what my sister had suggested I do earlier. I examined the unbelievable cock in front of me as it slowly slid out of her. The second knot was, as I thought earlier, slightly smaller, so it only made a slight “glorp" noise as it slid free. Cum dribbled out of Kyrie's snatch as Apollo's cock slapped against her belly. Now fully exposed, I marveled at its design. Two knots, indeed, but they weren't like mine. They were tilted, canted against each other so the angle of one knot was perpendicular to the angle of the other. They also had soft, fleshy barbs running around each of them. When I gave them a stroke with my fingers, Apollosh shaft throbbed, and another gush of fossa cum hit the underside of my sister's chin. She barked. I laughed. Apollo purred.

Then I reached back and stroked the feral nuts rubbing against my sister's rump. “Hey, mind if I take your place?"

Two sets of eyes focused on me. One amused. The other surprised. Apollo retreated, himself now leaning back against the wall. Unlike me, he was gifted enough that he could lick the crown of his own cock without effort as I lifted my sister's leg.

“Colbey, you don't need to."

“Did you want this, sis?"

“I know I tease you a lot. But I didn't want you to… I didn't…"

“Didn't want me to, what? Want me to just slip into you while you spooned me on the train? Want me to tie you while you were in my lap during takeoff? Bet we could have. The flight was hours long—more than long enough for me to get soft again."

At that, my sister's ears burned bright. I wasn't used to seeing her blush, but this time it was her being the shy one.

“Didn't want to ruin it, Colbey. Not us. If I said anything, when I teased you, you might think I was being serious about it and would make me stop. Wouldn't let me sit in your lap. Wouldn't let me rub up against you. Even if it is my stupid little fantasy, why ruin it if you didn't it, too?"

“But what if I do?"

She looked away, but the burning in her ears reached fever pitch. “Then bro, you'd better fuck me right now, before I convince myself you're joking again, or—YIP!"

That last was drawn out of her as I slid in. She felt utterly unlike Athena. Although, that might be because as I was pushing in, I was displacing globs and streamers of fossa cum.

Nearby, Apollo used his forelegs to hug his cock to his front. Those forepaws of his could grip, but they didn't look like they were meant for this kind of job. He gave me a questioning glance as I reached out, then closed his eyes as I got two fingers behind his lower knot and squeezed.

I could feel how much cum he'd pumped into my sister, because it was slurping around my shaft as I humped. It was a pure marvel that he could—within just minutes—manage to spray another chest and face soaking orgasm. But that's what he did as I milked the base of his shaft.

And since everyone else had gotten what they wanted multiple times over, I figured I wasn't going to wait. Kyrie yelped as I lifted her knee and ground my knot against her lips. But rather than pulling away, she was pushing back. Lubricated by our feral companion taking his turn first, my knot slurped into place with barely any extra exertion. Kyrie squirmed, and I felt another gush of her squirt against my nuts. But by that point, I was past caring. Orgasm hit me like a brick as she squeezed behind my knot. That seemed to be the universal permission here. Tug behind a knot to give its owner permission to make a mess.

It was while I was riding out my tie and Apollo was drying himself from a quick shower that the door to our accommodation opened and Athena stepped in. She stopped. Sniffed the air. Looked at me. Looked at Kyrie. Looked at our tie. Looked at her brother, and looked at his half-limp member hanging out of his sheath. She hissed. And then there was chaos.

I hadn't quite counted on how agile and fast the two companions were. I don't believe they touched the ground as they bounded off walls and chased each other around the room.

“Sorry! Sorry!" I heard Apollo panting.

“Would it have killed you to wait?!" Athena growled. They knocked over the papers on their filing cabinet. Athena slipped on the slippery tiles of the bathroom as Apollo bounded over them. They careened off of the far wall and landed on my bed. The two siblings bodies gyrated against each other.

“Sister! Stop! I'm spent!"

“I'll spend you. I get a double shift, and what do I come back to? Better find a way to get it up, because Mr. Tied-In-His-Sister over there isn't going to sort me out."

“Okay! Okay, just a minute!"

“Now!" Athena bit his scruff, and miracle of miracles, I watched the tip of Apollo's cock, which had just retreated the last ways into his sheath, emerge again as if on command. It didn't stay visible long, because Athena's hips smashed it against her feral spade urgently. The puffy lips of her sex spread, and her brother's cock disappeared inside.

“Huh." Kyrie stated rather off-handedly, just as enamored with the show as I was. She could probably feel me throbbing a few more times inside her. “Is that what I looked like?"

I saw what she meant. Athena was grinding herself over the first knot. But while the stretching was equally enjoyable to watch, her anatomy was different enough that it created an entirely different aesthetic.

“Nah. She's got those puffy lips, so you can see every bit of the knot as it slides in. See? For you it was more subtle. Just the way I could see it in the gap of your thighs, right?"

“Well, until you got your fingers in there."

“Yeah. Why, you thinking I should do the same?"

“I don't know. I think this time you might get bit."

Hearing our exchange, Athena turned to me with an amiable smile on her face—albiet one that showed teeth. “Oh, don't worry. I wouldn't bite our dear guests. This is just for my brother. Who knows. He should. Be. Waiting. Until. I. Auuughhh…" The last was a gasping sigh as his second knot stretched her visibly wide, then slurped in with a squelching noise.

And then there was a pleasant, but insistent chime. Suddenly, Athena looked quite chagrined.

The tone chimed again.

“What did you do, sister mine?" Apollo gruffed as she squeezed his knot.

“Uh." She stammered.

Apollo gruffed. He hopped up, dragging his sister behind, and leaned up to where Kyrie and I were looking around confused. He pulled the covers up, then over both of us simultaneously.

The sound of the door shushing open. Athena sqorked something under her breath. There was an in-drawn breath from someone outside.

Apollo said “Thanks. Sorry for that."

Then the someone outside said “Is okay. I should be used to it delivering to the shared accomodations."

Apollo laughed. Then the sound of cardboard being bitten. And the smell of pizza. The door closed. Athena whimpered as she came.

The covers over Kyrie and I were tugged away. And as Athena rode out her messy peak with her brother tied, the four of us dug ravenously into dinner.