Ethics in Marine Biology Pt. 04

This story is more public than before, and involves demons other than River. Previous parts aren't required reading, but each is different and they add a LOT of context. Enjoy!

I strode through the doors of the Brookridge Aquarium with a spring in my step. It was 11am on a Thursday, and Helen had done me the favor of taking the early shift. I had taken a long shower and eaten a glorious breakfast sandwich, so the day was off to a good start. My two coworkers were going to make it even better.

As fun as my job was becoming, we still had deadlines. The portion of our research that I could publish without exposing my bedroom proclivities to the scientific community was tedious, but it did satisfy our grant. The other research, of course, satisfied me. River had already soaked one of our drafts in errant fluid, so we'd been redoing a lot. To be fair, they might have been my own fluids... but who can blame a girl?

I looked over my shoulder before I opened the door to the lab, since I really didn't want any piggybackers sneaking in. My paranoia was immediately validated, since I opened the door to the sounds of Helen moaning. I slipped in and mentally thanked the geniuses who had soundproofed our lab.

Helen was bent over her chair, naked ass in the air and feet barely touching the floor. She had two tentacles between each set of lips that were bearing the bulk of her weight. Apparently, only a teal bra and ankle socks were required for PPE today. River turned to greet me, without losing their focus on my boss. They were wearing their usual green robes, under which a mass of tentacles writhed excitedly.

"Good morning, miss. Care to join us?" They waved three tentacles in my direction. When I didn't immediately assent, they waved 3 more and raised an eyebrow.

"That sounds amazing, but I've got SO much to do. The deadline's in a month, and we haven't even finished collecting data. Once we have it all, we need to format it, review it, send it out for external review..."

Helen popped off the tentacles in her mouth and grabbed her chair with trembling arms. She looked towards me but wasn't quite able to focus her eyes between thrusts.

"-and the- abstract- still really- sucks-" she managed to gasp. River stroked her cheek with a large tendril, which she happily slid back down her throat. I guess that's all she had to say.

".. and then there's the abstract. So as eager as I am to jump right back in, I really need to get this done. That's what we get for trying to fit business and pleasure into a 6-hour shift."

River continued to fuck Helen, gently flipping her over without pulling any tentacles out. Her tits swayed back and forth as she was pushed around, barely staying inside her bra. She undid the clasp and tossed it aside, letting her perfect tits really flop around everywhere. So, just the socks for PPE. Got it.

I got my computer unlocked and tried to find where I left off. It looked like I had forgotten to save a document, probably because I had the sudden urge to know what a non-sexual massage from tentacles felt like. It had turned out there was no such thing as a non-sexual tentacle massage; at least not for me.

I felt a tap on my shoulder. Speak of the tentacle, and it shall appear.

"I had a thought," River said. "I'm not sure if I ever mentioned this; I probably assumed it was obvious. But now that I have access to this mortal coil, I can place a window basically anywhere. It doesn't have to be here."

"Uh, yeah, you never mentioned that. So we could have been having sex anywhere this whole time?"

"Yes, that appears to be the case. Sorry, I thought you two liked this particular room. I suppose it would be strange to be intimate where you labor."

"Well that's good to know. We're meeting at your place next time, boss." Helen gave me a beleaguered thumbs up, still getting pounded from both ends. Her moans were a throaty hum around the tentacle in her mouth. River looked a little absentminded, all things considered. They spoke up.

"It's probably for the best, anyway. If you'll be busy, I can focus on my own work. I'm always, always happy to join the two of you for business and pleasure, but I was invited to host a symposium this moon. I've spent so much time here that I haven't even come up with the theme yet."

"Wait, River. You're in academia too? I knew there was a reason we got along," I joked, genuinely surprised. I guess I should have known they would have some kind of job, other than being a nonbinary gigolo for two human women.

"Yes, of course. Why else would I wear these robes?"

"I think I assumed it was just streetwear for demons. Is your symposium completely open-ended?"

They shook their head. "I was asked to host it this year since I've spent so much time on this plane. My experiences with humans make me an 'emerging expert,' or so they say. I'm just not quite sure what they want me to talk about."

Helen let out a surprised yelp, then pulled the tentacle out of her mouth. She gasped, "I have an amazing idea! But I'm not going to say it until River makes me cum. I've been edging ever since you came in, you little twerp."

I stick my tongue out at her as River turns her upright. They pull her close so she can wrap her arms around them as they push a third tentacle into her pussy. Her eyes widen and she silently screams as River drops her full weight onto the tentacles. They hammer her up and down for a minute straight before River blasts her full of cum, causing her own orgasm to bubble up and overflow. After the veritable river of cum flowing out of her subsides, she flops over her chair and hangs her head in exhausted bliss.

I sat there, waiting for her to speak. "River, did you go overboard again? She looks half dead."

One of her arms has enough strength to raise her hand and one particular finger at me. "I'm fine. I've been used and abused for the past hour, I'm entitled to a few moments."

She sat up, looking flushed and happy. Honestly, she was glowing a little. "I've had the perfect idea," she said with a dastardly smile. "River will do their symposium on us. We will be the subject of discussion. Interspecies relations and the overlap of erogenous stimuli."

I stared for a moment, assuming her whole brain had been fucked out of her. River speaks up first.

"Actually, that sounds like a great idea. What have I been studying these weeks if not that very thing?"

I stared at them next. What were they talking about? "Okay, I get that the three of us have a good thing going. It's miraculous and it's superb and I can't imagine not having it, but it's certainly not professional, let alone academic. What scholar would even be interested in that?"

Helen's smile didn't waver for a second. "Oh please, if River's colleagues are half as pent up as the ones in our field, they'll love a good show. I'm not saying we need to fuck them, I'm just saying we could... share data. Present it in a more formal context, or make something like a tape..."

River nodded. "It's certainly worth suggesting to the board. I'm not sure what the direction of academia in this world is, but research in humans and their biology is always worth funding for us. They certainly wouldn't have any hangups about seeing a demonstration."

That got Helen to bite her lip. "You hear that, intern? We'll be demonstrating. I bet you'd love River demonstrating all over you, you little slut."

I threw her bra at her. "I'm... let's say hesitant. I'm really not an exhibitionist. I don't need a bunch of nerds in lab coats counting the number of hairs I missed shaving. I'd be happy to talk, but I don't really want to get railed in an academic context. Does that make sense?"

River smiled, clearly understanding. "Of course, I wouldn't ask either of you to do something you weren't comfortable with. The symposium can be exclusively a discussion of theory. I will run it alone and redact all references to my two beautiful sources."

"Well that's no fun," Helen pouted. "Come on, the least we can do is help you run this thing. And if the mood is right, and I'm granted permission by my subordinate, I'll let you run me through in front of all your colleagues."

I couldn't argue with that. "I'm sorry, I do want to help. We can work on this more; I'll provide some primary sources once you decide what to talk specifically about. Will that work?"

"Oh, absolutely!" River exclaimed. "Anything you do is already too gracious. I'm forever indebted to both of you."

Helen gave the nearest tentacle a kiss and went to the bathroom to clean up. I could hear the shower running and knew she'd be in there a while. I looked at River's tentacles, still covered in her fluids and theirs.

"If you're so worried about your debt, you could always pay me back with a couple orgasms. I think we have time for two before Helen gets out of the shower." My top was already off, tits on full display.

River approached me with tentacles outstretched. I could tell it wasn't going to be a productive day.

---

As the planning went forward, it seemed like we were getting closer and closer to a "live demonstration." First River mentioned researching interspecies STDs, then Helen told me about a good waxing place... it seemed like I was getting slowly overruled. I was honestly warming up to the whole idea. I showed one of my coworkers what River and I were doing, why shouldn't I show theirs?

Helen knew exactly the place to host the symposium. She had been using a coworking space while she was defending her thesis that was surprisingly bad for working, but great for our purposes. It had skylights instead of windows and plenty of couches, so we'd have all the privacy we'd need for a sexual, demonic cabal. Before I knew it, it was the day of and I was running late.

I scurried downtown, looking for the right address. Helen's suggestion had gotten to me; my freshly-waxed thighs were rubbing together in a very unfamiliar way. I wore my most tasteful academic outfit, befitting the totally normal and professional evening I was expecting. I had on a pastel blue button-down, a billowy black midi skirt, and totally unnecessary clear-framed glasses. My hair, as always, was tucked into a neat, high bun.

The entrance appeared halfway down an alley. I guess that explained the lack of windows. The door opened easily and revealed a dimly lit hallway. At the end, a man in a dark hat and trenchcoat stood next to a door. I slowly walked towards him, wondering whether River was finally planning on eating me. I spoke up.

"He- hey there! Is this the place for the symposium?" The man finally noticed I was there, and smiled wide.

"You must be the Scholar! Yes, right this way. They were beginning to think you weren't coming."

"Sorry, traffic was terrible." It suddenly struck me how weird it was to see another human being here. I had to ask.

"I'm sorry if this is a weird question, but how do you know River? I didn't think he knew any humans other than me and my boss."

He smiled and lifted his hat. Underneath, two massive horns protruded from his mess of curly hair. Whoops.

"Oh god, I'm so sorry. I didn't mean to assume. You just-"

He winked, putting his hat back on. "No problem at all, ma'am. It's a compliment that you couldn't tell, that means my disguise is working. River just asked me to guard the door this evening. Please, they're all waiting for you."

He stood aside and pulled the door slightly open. Seeing my hesitation, he didn't open it further.

"Is everything all right, ma'am?"

I nodded, looking directly at the gap in the doorway. "I've never done anything like this before. River's great, and I trust them completely, but... there are a lot of other people in there."

The bouncer closed the door all the way, blocking it with his body. "That's probably for the best. Half the demons in there said they wanted to eat you."

As I stared at him in horror, he began to laugh. It was such an earnest, human laugh that I couldn't help but join him. He mimed wiping a tear from his eye.

"Truthfully, ma'am, us demons are more like you than you'd think. There's so much overlap in our worlds, and we watch so many of your movies; we're bound to be more alike than we are different. Some of us just have more arms and legs, and some of us have fewer. In fact, some of my kind are in there, so you'll see plenty of familiar faces. I can't blame you for being nervous, but I assure you there's no danger this evening."

"Thanks. That helps a lot. And I'm sure you're right, but... don't let any other humans in. They don't need to see any of this out of context."

"Absolutely. And just give me a holler if you need anything. I'm here for everyone's safety, and that includes you. Ready?" He grabbed the doorknob and gave me a thumbs up.

I gave him two and nodded. As he opened the door, I strode into the room with a shaky confidence. It remained that way for a while.

The best part was that nobody seemed to notice me coming in. The room was packed with humanoid figures, all clad in the same robes River always wore. They were all mingling about, talking in loud voices about all manner of things. It looked exactly like every other academic gathering I had ever been to, except for what I saw over the robes.

On my left, one demon had a glassy sphere for a head, inside which little fireflies flitted about. To my left, two demons had elephant heads and were gesticulating with their trunks while arguing about long-term memory research. Ahead of me were demons that looked like blue bugs, green flowers, orange... oranges, you name it. Everywhere I looked were creatures beyond belief that were having ordinary, scholarly discussions. I began to move through the crowd, desperate to find River before too much attention was drawn to me.

I got twenty feet in before I tripped over a tree stump. I landed on my butt, and suddenly all eyes were on me. The demons were whispering to each other, like I couldn't hear it from everywhere all at once.

"Is that the Scholar?" "It looks like she did make it." "River hasn't had office hours in months because of her??"

River came to my rescue a moment later. They emerged from the crowd, helping me up immediately. Their touch was gentle as always and incredibly reassuring.

"There you are! I'm sorry I didn't find you sooner, I can barely move through this crowd. This venue might not have been big enough."

"It's fine, River. Sorry I'm late. Let's just get this going, I'm sure everybody's waiting. What's first on the agenda?"

"That would be me, actually." A tiny voice came from down on the floor. I looked at the stump I just tripped over to see a little gnome emerging from a mushroom house. I almost squealed with how cute she was, but I remembered this was a professional environment. Also, I just tripped over her house.

After I bent down to get closer to eye level, I reached my finger out to shake. God, I hoped I wasn't being culturally insensitive. "Pleasure to meet you. I'm "the Scholar," I guess. Sorry I tripped over your... house?"

She took my finger with both hands and shook it. She was barely three inches tall.

"It's alright, it's a study structure. If I don't like it I'll just grow another. I've got a potion for you to try! Please open up." She dragged out a shot glass that was basically a cauldron to her.

"Hold on a second. What's in it, what's it do, and why do you need me to test it?"

"Oh, it's not poison or anything. I have the antidote right here."

"Yeah, that's actually less reassuring. Usually people only need antidotes for, you know, poisons. Nobody concocts an antidote for Penicillin."

River put two tentacles on my shoulders. "Dr. Gnorman here has assured me it's gone through significant clinical trials on gnomes and human-adjacent demons, without data showing deleterious side-effects. Isn't that correct, Doctor?"

Dr. Gnorman jumped around, apparently indignant that we questioned her methods. "Yes, we've tested it to the elemental plane and back! I've got all the data I need, I'm just curious if a pure human has any different side-effects. It's a simple muscle relaxing agent that should make it harder for you to strain something. All of the safety, none of the lack of coordination. Is that acceptable to you?"

I picked up the glass, swishing the blue liquid in it around before tossing it back. If that was the worst thing I did that night, I would have been worrying for nothing. It tasted like cough syrup and burned a little going down, but that was it. Dr. Gnorman rubbed her little hands together in a way that probably wasn't meant as nefarious.

"Wonderful. You should feel the effects this evening, so please find me when you can report them. I'll be mingling." With that, she hopped off her stump and scampered into the crowd.

I turned to River, intending not to worry about that until it came up again. "One down, how many to go?"

River smiled and glanced around. "I suppose, however many we have time for? Everyone's eager to meet you, but I promised the privilege of your time to someone specific. Let's see if we can find them."

I followed River through the crowd, being introduced to people as we went. Everyone seemed to speak English or some other language River understood, making we wonder how many they knew.

"River, quick question. You said, 'as many as we have time for.' You weren't planning some crazy gangbang where I fuck every demon here, were you?" I chuckle nervously, wondering if my joke went too far.

"Oh, of course not. You see the clipboards some of them are holding? Those demons here exclusively to study you. They will not be participating at all."

"Wait, so everyone else will be??"

River saw someone they recognized before they could hear me, so I never got an answer. The someone was another demon of River's kind. They shook tentacles and began to catch up.

This demon was less humanoid than River; at least there weren't any humanoid features I could see. It looked like a mass of purple tentacles, writhing and twisting around themselves, for seemingly no reason. I listened a little closer and realized what they were writhing around.

"Helen? Are you in there?"

The sounds of my boss moaning grew louder and louder until the tentacles parted and her face emerged from the tangle. Her head jerked back and forth; she was almost certainly getting pounded from behind.

"Hey there-- intern-- so glad-- you could-- join us-- finally--"

"Looks like you're having a good time, boss. How long have you been at it?"

"Started-- just a few-- minutes ago-- haven't had-- time to-- mingle yet--"

River chimed in. "Helen, you came two hours early, as we agreed to yesterday. You've been in there for almost 3 hours."

Helen did not appear to hear that. Based on the face she was making and a loud squelch, she had just been gifted another tentacle.

"Give me-- one more-- good cum-- and I'll-- join you--"

I shook my head, only a little jealous of the simplicity of her task. I bet she hadn't been asked to drink any weird fluids. As the tentacles closed back around her, two wormed their way past her lips and began to fuck her throat. We'd see if one more orgasm was enough for her.

River finally found what they were looking for; a black cauldron sitting in a corner. They scooped it up and ushered me towards a side room, looking for a little more privacy. I told them I appreciated it.

Once inside the room, I flicked the lights on as River set down the cauldron. The room had a couple couches, too many desks, and half a dozen chairs. A white board lined one wall and had some finance jargon left on it. River beckoned me over to the cauldron, and I peered in with hesitation.

Inside the cauldron was a mass of green, glowing goo. It was transparent and viscous, only populated by two comically simple eyeballs floating near the surface. They stared at me and a little arm of goo came out to wave. I waved back.

River explained. "This is a slime demon. I'd introduce them, but they don't quite go by names like other individual organisms do. This is a collection of individuals that have chosen to live life together, and are therefore congealed into one mass."

"Okay... what's the activity here? I think there's an ethical discussion that needs to be had before I drink any sentient liquid."

The goo appeared to understand what I said and recoiled in terror. River chuckled to themselves.

"Sorry, I should have explained. This demon does not want to be drunk, they want to interface with you. It might just be easier if we proceed. I promise you will not be harmed."

"You got it River. I've come this far anyway."

They gently began to take my clothes off, and I was grateful for the privacy of this side room. Once I was fully naked, they used one of their tentacles to guide my hand into the cauldron, and then under the surface of the goo. The green, glowing slime slid up my arm, moving slowly across my shoulders and down my body. It slid over my nipples, which were already hard from the cold. It felt warm and soothing, like I had slipped into a hot bath. The goo appeared to notice my reaction and continued to swirl around my nipples as the rest of it moved down my abs.

The pressure on my nipples forced a soft moan out of me. I instinctively covered my mouth with my hand, which was covered in goo at this point. I got a little taste of it, and I couldn't complain. It almost reminded me of limeade, as weird as that was. It was slightly sour but mostly sweet; I gave it a few gentle licks before I realized that might be super inappropriate. The goo didn't stop, so maybe it didn't mind. I was wondering all this when it reached my clit, and then I couldn't think of anything else.

Unlike every man I've ever been with, the goo was happy to stay outside me and focus on my own pleasure. It bathed my labia in warmth and pressure, sliding between every fold like a torrent of hot water. It ebbed and flowed between my legs, happy to push my clit back and forth now that I was fully soaked. It was all I could do to stand upright as it smothered me in gentle pressure. I moaned loudly, not caring if everyone outside could hear me. This goo was somehow more smothering than tentacles, and I could barely handle those.

It wasn't meant to last, however. Just before I could ride the wave past the peak of an orgasm, the goo receded and slid off me, slurping back into the cauldron. I was breathing hard, tingling all over, wondering what the point of that exercise was.

River answered my question. "Now we wait a minute, and see what the slime is able to replicate. It's worked with other demons, but human biology is so interesting. Who can say how good of a copy it can make?"

"A copy of what, me? You really can't get enough of me, can you, River?"

"Alas, my needs far exceed your own. With this I'll finally have enough of you to sate my hunger."

I threw a dry-erase marker at them, feigning insult. I'm MORE than enough for them, and they know it. Our banter was cut short by my mirror image rising up out of the goo.

It wasn't perfect, but it was amazing how close it was. She had green skin, a slight glow, and her eyes were the same as they were in the goo... but it was me. I was looking at myself, but from whatever angles I wanted. I realized I'd been circling the cauldron without realizing it.

"That's incredible. All that, from just a few minutes of contact. What does she do?" I asked.

River answered. "Anything she wants. She's just slime taking form, and a beautiful form if I say so myself. There will be some psychic connection, but otherwise you two are separate organisms."

The goo girl grabbed her breast and began to tease the nipple, pushing and tugging it in the way I always do. I was surprised to feel it happening; it was dull and distant, but I could swear I was experiencing it too.

"I can feel that. Is that supposed to happen?"

"Yes, that's what we hypothesized. It's always good to check, though. If that's it, we might be able to wrap up here and move on."

A flash of curiosity hit me, and I stepped towards my doppelganger. I held her arms, which had just enough surface tension to hold onto. Without hesitation, I went in for a kiss. She didn't recoil; she pressed her lips against mine, mirroring my movements exactly. My mind was flooded with stimulus, reeling from just the sensation of being kissed. It was like I was feeling everything four times at once, and I couldn't focus on anything else. I felt her tongue dance out to meet mine, and I had to pull away. That was a little dizzying.

River put a tentacle on my back, supporting me as I wobbled. "Are you alright?"

"Yeah, I'm... fine. Do we have to move on right away? Could I... could we... could I...?"

The goo girl nodded emphatically, stepping out of the cauldron and jumping into my embrace. She was clearly raring to go as well.

River shrugged as much as their tentacled form allowed. "I suppose we could verify your findings. I'll ask if anyone else wants to study this interaction." They move towards the door.

"Actually, River, maybe we shouldn't le-" I was cut short by the goo girl pushing her lips against mine. The sour taste of her tongue invaded my mouth as she tried to wrap hers around my own. She pushed her tongue deeper and deeper, almost throatfucking me with a tongue that seemed not to end. Was I always this good of a kisser?

We didn't need to take our clothes off, so I got right to it. She was wrapped around me, so I carried her over to one of the couches and sat down with her on my lap. She didn't let me come up for air until she started planting kisses on my cheek, my neck, my collarbone, my breast... I just laid back and let her make her way down a body she knew so well. She kissed me all over, except on my side where I'm ticklish. I guess she knew everything there was to know about me.

As I'm wondering why she's so assertive, she reaches my clit. Her green tongue laid flat on it, holding herself in place as I got used to the feeling. It was absolutely electric; I could feel the wet pressure of her tongue, but I could taste my own pussy as well. It didn't matter who was giving; we were both receiving. That's why she was so eager to get started. I tried to keep that in mind as I wove my fingers into her gooey hair and pushed her head up and down.

For obvious reasons, we were perfectly in sync. I tried to guide her with my hands, but she already knew where to go. When she put too much pressure on, she relented and moved off to the right. When I was aching and wanting more, she slid two fingers inside me and put pressure in just the right spot. It was exactly what I needed, and I knew I wouldn't last.

She slowed her pace and made eye contact, which is just what I needed. I stared back at her for as long as I could before I shut my eyes and gasped, cumming faster than I ever had before. She perfectly matched my aftershocks, using just enough pressure to keep me going. It took me a solid 30 seconds to stop cumming, moaning loudly until I could only whimper. Usually my path to orgasm is long and winding, but her fingers and tongue cut a beeline right to the finish. That was the most empowering thing I'd ever done.

I opened my eyes to ask if she wanted the favor returned, and saw she was also coming down from her own orgasm, shaking and sending little shockwaves through her gooey skin. It seemed like we were more linked than I thought. Now where had River run off to?

I looked around for my bra, talking over my shoulder. "That was amazing. I don't know what else I'm supposed to do tonight, but I don't know how anybody could top that. Was that everything you needed?" I found my bra and started to clasp it back on.

The greener me didn't respond, which I probably should have expected. I hadn't heard her talk yet anyway. I turned back towards her to see she was standing there, hand on her hip, with a mischievous smile on her face. I didn't know what she meant by that until I looked down and saw what had changed.

Where she used to be a perfect replica of me, she now had a perfectly green cock. It almost looked like a silicon dildo, since it was glowing and shiny. Is that what my dick would look like if I had one?

I was at a loss for words, but not for very long. "I take it you... extrapolated? Cause I'm pretty sure I don't have one of those. So if you're looking for fidelity, that's not going to help. If you're looking for something else..." I let my bra fall and knelt on the couch, looking over my shoulder. My tits swayed and my tanned ass wiggled in the air.

"... I can help with that." She wasted no time. Her cock swung side to side as she approached, pointed directly towards my pussy. She lined herself up and I felt, for the first time, what a dick rubbing against labia felt like. Suddenly, I understood the behavior of every man I had ever met.

Just before she could thrust inside me, the door opened and River entered, followed by various demons with clipboards. I was about to tell them to go away when my clone thrust inside me all at once, slamming my hips against my butt. My protests came out as a yelp, which turned into a moan as she slid back out. I couldn't think straight after that. I stopped caring about my own embarrassment.

A dozen of River's colleagues took seats around the room as I moaned like a whore, fucking myself as hard as I could. The goo girl grabbed my hips and thrust with her whole back, which was stronger than I thought. I glanced back at her and saw a perfect copy of my tits bouncing around, moving with her thrusts and looking hot as hell. It was all I could do to hold onto the couch and try not to bite my tongue. I was feeling everything a man felt, in addition to a very respectable fucking. I felt myself pushing back into her, knowing I needed more. As before, our rhythm was perfect.

I felt the strangest sensation and knew it was a kind of orgasm approaching that I'd never felt before. But I hadn't done anything yet; it didn't matter how shared our sensations were, I needed to be an active participant. So I tapped on her hips and let her slide out of me.

Luckily my gooey partner knew what I was thinking. She sat down beside me, back against the couch and dick pointed at the ceiling. Once my legs stopped shaking, I squatted over her and put my hands on the back of the couch. I was going to ride her like my life depended on it. As I lowered my pussy down towards her, I saw her mischievous smile again and felt her dick rise up to meet me. That slut got even bigger!

Undeterred, I pressed my lips against the now-oversized tip and began to slowly envelop it. I could feel it stretching me out, the girth of it almost supporting my weight. I white-knuckled the couch and exhaled, making as much room as possible. I relaxed my legs entirely and slipped down her massive cock, my ass impacting my lap with a wet smack. I gasped silently, incapable of vocalizing my pleasure. By the way her eyes were squeezed shut, she couldn't either.

The process of lifting my ass was only slightly easier, but I began bouncing on her dick and moaning in earnest. The rigidity of it made it easy to aim; I just had to move up and down like an animal. I pounded my ass against my lap, pushing her into the couch and making her gasp. It wasn't long before I could feel that feeling again, and I knew she wasn't going to last long.

I wanted to make that moment last, but I didn't have a say in the matter. My hips kept moving until she grabbed my ass, spread my cheeks, and erupted inside me. We both screamed into the other's ears, failing to have any control over ourselves as we came in every possible way. I could feel her filling me up just as vividly as I could feel myself filling her up. Our bodies twitched and spasmed together, surprising us every time we thought it was over. Could I get pregnant from myself? Who cared, I'd do this every day of our lives.

My post-orgasm glow was cut short by applause from around us. I blinked my eyes open, remembering where I was and how embarrassed I should have been. Luckily, I was too exhausted to care. I probably wouldn't be walking right anytime soon anyway.

River came to my rescue, or so I thought. They wrapped tentacles around the two of us and lifted us up, orienting me so I was lying on my back with the goo girl still inside me. She winked at me, pulled out, and slid down towards my pussy. I could feel a waterfall of white cum spilling out of me, but before it could go anywhere, her lips were on mine. She dutifully lapped it up, brushing against my clit and making me shake with pleasure. It was just gentle enough to keep from hurting; she knew me too well. Once she had eaten all her cum, she stepped over to another demon who had produced a vial. She let the cum spill out of her mouth and into the vial, which I hoped was for scientific purposes and not just sentimental value.

The demon that brought the vial was a humanoid with what looked like a large brain instead of a head. I saw a damp spot on the front of their robes, almost like they had been enjoying the show. They appeared to notice me notice, and somehow blushed before walking away. Looking around the room, I could see a few other demons with signs of arousal. Some pitched robes, damp spots that weren't the crotch, and one demon with an inflatable organ that was very much inflated. I guess I was doing a good job, even if arousing the collective academia wasn't really the point.

River addressed the crowd. "As you can see, the interaction with the human host was mutually beneficial, and has the potential to be symbiotic in some cases. Wouldn't you agree, my dear?"

I looked up at them, still dizzy. "Yeah, I can't complain. Hurrah, science."

River discussed the "experiment" with their colleagues and ushered them out of the room, giving me space to recuperate. The goo girl gave me one last hug and a very passionate kiss, then hopped back into the jar to liquify. I wiped myself down with some conveniently placed baby wipes and recovered my outfit. Honestly, I thought that might have to be it for the evening. I was exhausted, overstimulated, and thoroughly fucked.

If nothing else, I really needed some aftercare. River was always so good about gently massaging my clit after I came, providing just enough sensation that I could come down smoothly. And they were going to be busy all night, so even if I left early, I'd be on my own. As selfish as that was, I had been getting sexually satisfied for so long. It was a hard habit to break.

I emerged from the room and wracked my brain for excuses to head home. Previous engagement? No, we had been planning this for weeks. Family emergency? No, River would be too concerned, and then I'd feel guilty. I didn't have to think of too many more, because a group of demons saw me exit and came over to talk. It didn't do them much good, since I couldn't understand a word any of them were saying.

They all wanted to shake my hand and bow and tip their hats, whatever seemed to be polite in their corner of the universe. I tried to tell them that I didn't speak their language, but it felt like they were talking more to each other than to me. One of them made a gesture like they just had an amazing idea, and they ushered me towards another side room. I couldn't find River anywhere in the crowd, so I went along with them. Maybe whatever they wanted would be quick, and then I could slip away.

We entered the room to find a dozen demons all congregating around an enormous clamshell. It looked like the kind that Venus came out of in that one painting. I could easily fit inside it, which I prayed was not what the demons were thinking. They all looked at me expectantly, which was the last thing I wanted. What was I doing here?

Luckily, River entered the room moments later. "There you are. Oh, how did you all pressure her into here? She doesn't need this right now."

"Uh, what's 'this' River? Am I supposed to be dinner?"

They shook their head. "No, no. It would seem that way, wouldn't it? The demon you see before you is a distant relative of mine, another aquatic demon with similar temperament to my own. They simply need human fluids to perform a spell, similar to how you and I met."

Okay, that's not nearly as bad. "So, do you want to do the usual? You've never had a problem getting me wet, why stop now?" I winced, realizing how embarrassing what I just said was.

"That might be our only option. It won't be ideal to mix my fluids with yours, but I don't see another option." Upon hearing that, the clamshell stirred.

It creaked open and revealed pink flesh that looked soft and moist. The interior was dominated, though, by what looked like an eight foot tongue. It was at least 3 feet wide at the base, and tapered to a tip that looked not unlike one of River's tentacles. It raised up slowly, and I could tell how powerful and dexterous it was. It slowly pointed towards me, dripping with saliva and covered in little tastebuds. I swear I could feel my pussy throb.

"Hey River?" I asked. "I don't think that'll be necessary. I'm gonna try something new. Would you hold my hands? I'm going in."

The next part is probably going to be the end of this series, so stay tuned! I've got other ideas, just not for these characters. Thanks for reading, and please let me know what you think!