Symbiont Research

Story by Shaylor on SoFurry

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This one's a fun RP I had with a friend about an idea for a eggworm critter that sounded like a rather fun time.

Creepy comments are welcome; I always enjoy new weird things, so leave a comment!

Yevgeni - My friend

Shaylor - Me


Shaylor walked into the lobby of a medium-sized office building on a relatively quiet afternoon. She was here to volunteer for an experimental program researching a type of symbiont. There was a large desk in the middle of the room; behind it was a bored-looking desk clerk, looking through notes. On the wall behind her was the company name, "Buchholz Inc.", in big letters, along with a bland-looking corporate logo.

On the wall near her was a room directory. She was looking for "Biomedical".

Shaylor scanned through the directory, finding that it was in Suite C on floor 2. Turning around to face the clerk she asked, "I'm here for the symbiont research program, is this the right room?" She pointed to the directory where it was labeled Biomedical.

The desk clerk, a fennec, looked up from her papers for a moment, pushing her glasses back up her snout. "2-C, yes. Elevator's to your right."

She smiled at her, "Thanks!" and turned around to call the elevator. After waiting for it to arrive, she rode up to the second floor and proceeded to make her way to suite C, opening the door and entering when she arrived, wondering what kind of research lab this would be.

When she opened the door, she found something a little duller than expected: a small open area with a reception desk, and behind it, some more rooms and hallways. A few doors were open; inside, Shaylor saw some lab equipment left on counters, though most of it was in cabinets with clear glass fronts. It looked a little bit like a doctor's office. In a sense, she supposed it was.

There was another receptionist, this one a squirrel, a bit brighter-looking than the one for the building. "Hi!" she said, maybe a little too loudly. "You are...?"

The dragon gave a little wave, "Hi, I'm Shaylor. I'm here for the symbiont research? Do I need to sign in or anything?"

"Shaylor, Shaylor..." she repeated to herself, scanning through papers. "Ah, yes, Shaylor! Here you go!"

She placed a piece of paper on the desk in front of her, along with a pen. "Just read and sign the waiver, and then go to Room 4, should be second door on the right down that hall."

She nodded as she took the papers, starting to scan through them, noting where she'd have to sign, and trying to see if there was anything to be concerned about in the waiver.

It had the typical provisions in it--"we're collecting data on you, we're not going to sell it, this is how we're using it, this is in fact an experiment," that sort of thing.

After reading it, Shaylor shrugged and signed her name to it before passing it back to the squirrel and making her way down to the previously indicated room and walking in.

Room 4, surprisingly, was set up like a hotel room, with all the furnishings--a bed, carpet, a window with curtains, a TV, a dresser, etc.

Inside the room were a mink in a lab coat, looking over a clipboard, and a very round-bellied bear, lying on the bed, wearing nothing but his fur.

"You are Shaylor?" the mink asked.

"Yes, I'm here for the symbiont research? You guys are much more on point than most of the doctor's offices I've been to!" She paused for a second as she looked around "This doesn't look much like a normal lab though."

"Well, it isn't. I take it you have read the briefing, yes?" The mink took off his reading glasses and put them in his coat pocket.

She hesitated "Well... yes... but it was rather lacking on specific details. Does that relate to these accommodations?"

"It does, in fact. Yevgeni here--oh!" The mink bopped himself on the forehead with the flat of his palm. "I forgot to introduce us. Shaylor, I am Dr Dieter Wiesestier, though you may call me Dieter, and this is Yevgeni. Yevgeni is your donor host; he or I should be able to answer any of your questions."

She looked to the bear as Dieter motioned at him, taking a good look at him before addressing him. "Uh... What exactly do you do as a... uh... donor host?"

"I put eggs in receiver hosts--well," he jiggled his ballooning belly, "Zina here does." His belly, or rather whatever was inside, began to squirm a bit.

"Ohh..." She seemed surprised, but curious at the wiggling dome. "So, you're hosting some kind of critter in there? What kind of creature is this Zina? I presume, since this seems to be voluntary, it's beneficial?"

"Depends on what you want. I'm sure Dieter here knows her scientific name, but as far as I'm concerned she's an eggworm. I don't know about any benefits, like superpowers or something, but she sure feels good to have around."

"Well, at least that's some kind of benefit if she feels good to carry around. I suppose I already signed up for this, no sense backing out now, and you seem to be handing her just fine. So, uh... how do we start this?"

"Well, unless you have any more questions for me, I'll leave you to it" Dieter said.

"Oh, one last thing doctor: how long is this program planned to go for?"

"Well", Dieter responded, "there's the donation session, which we're about to begin, and then there's a check-up in a week, and at that you can decide whether to continue. If you do continue, you'll stay here for a week while we collect larvae--compensated for the trouble of course--and then you come in for periodic outpatient check-ups every two weeks or so after that. We do continue to compensate volunteers for continued hosting, and you do need to hold the... eggworm... for the first week, but after that it is up to you."

"Alright, thanks." Shaylor turned back to Yevgeni. "Well, I guess let's get started? How exactly does this work?" She gently reached out a hand to touch his belly, a bit curious about it.

Dieter left, locking the door behind him to ensure their privacy; as he did, Yevgeni began to explain. "This is my belly. In my belly, specifically in my prostate, is Zina. Zina is an eggworm, which means she is wormy and she lays eggs, but she doesn't lay eggs in my prostate. She lays eggs in somebody else, in their... wherever, she isn't picky."

Shaylor gently stroked the bear's swollen belly as she listened, seeing if she could feel the worm beneath his pelt. "Well no wonder she feels good in there. That does actually sound rather nice if she's filling up your prostate so full."

"Oh, yes, I love her and she loves me," he said, rubbing his belly up and down as he spoke.

"So what happens is, she wriggles a ways through..." He stroked his sheath, to indicate it. "...what's in here... into whoever it happens to be in at the time, makes sure she's in the right place, and then starts pumping eggs out.

"Eggs will hatch into larvae; larvae will grow for a while wherever they happen to be--which will be you--until they're old enough and you enter a body of water of some sort, could be a pool, could be your bathtub.

"Then they wriggle out the way they came in--unless you did oral, then they go out the other end, it's easier--and start swimming around for the nearest dick to swim up. They're little buggers at the time, maybe the length of your finger and a lot thinner too.

"But if they start out in your prostate, somehow, then when they mature enough to leave, a few of them will notice they're already in a prostate and stick around, so if that happens you could end up with, say, five at once.

"Only way that happens is if we cockfuck, so... don't do that. Or do. I'm up for either."

Shaylor listened with rapt attention, quite interested in the strange lifecycle of these odd creatures. When he finally finished, she asked "So, normally, only one goes back into the host, but if they start in the prostate, they just don't leave when the host is in the water? They just stick around and grow?"

"Some of 'em do, some of 'em don't. You'll typically get... about a quarter of 'em staying behind. But yeah, if it's out of anywhere else, if one of 'em goes in, then the rest know it's already taken and move on. If you end up with multiple, though...Zina's only one. And," he patted his belly, "you can see her size."

"Ah, makes sense. Well, if they're compensating for the hosting, I figure that hosting more of them will get the most out of this program, right? Also, I do have a bit of experience in similar matters, so I think I can handle it! After all, having her wiggle around in my prostate is probably the most enjoyable way to do it, isn't it?"

"If that's the way you wanna do it. If you're ready, I am." He laid back on the bed, resting his hands on his belly, one leg on the bed, one leg off, his balls and sheath invitingly exposed.

"Alright, I think you've got the right idea, on the bed is probably the best place to do this." She started unbuttoning her pants, letting them fall to the floor before climbing on the bed with him.

She joined him in rubbing over his belly, trying to feel Zina under his skin, quite curious about the creature that she'd soon be playing host to, however temporary it might be. Though it was certain to leave some aftereffects.

However, her touch wasn't borne purely from curiosity. Knowing that his prostate was presumably just beneath his taut hide, she rubbed over his gravid gut, hoping to start their encounter in an enjoyable way.

He inhaled sharply for a moment before letting out a pleasured, low growl, almost like a purr. Zina, meanwhile, began to wriggle and writhe under both her host's and Shaylor's touch, Yevgeni's belly rippling as she moved beneath his skin. Yevgeni's mast began to rise.

Grinning at the bear, happy that her gambit had succeeded, she moved her left hand down below, fondling his orbs for a few moments before moving up to his bulging sheath, rubbing and stroking over the hidden flesh inside it, feeling as it firmed up beneath the soft covering over it.

During all this, her right hand continued gently massaging his wriggling gut, tenderly groping over the squirming worm within, both in an effort to please the bear, and to try to discern anything about the shape of the worm hiding below.

The bear himself groaned in pleasure at Shaylor's moves, his sheath beginning to stretch open as his shaft demanded to be pushed out, his hands continuing to rub his own belly.

The worm inside said belly was beginning to move with an excitement of her own, but what was truly impressive about her was her size--filling out Yevgeni's belly entirely, she was at least two inches thick, and moved with long, powerful strokes under Shaylor's tender caresses.

Shaylor watched on, Yevgeni's belly keeping her rapt attention with its wiggling, swaying motion as the worm inside it woke up. She was amazed by how the entire gravid dome seemed to be moving, all filled with the massive bulk of his pet worm, and knowing that it was about to occupy her soon.

Watching all this slowly started to affect the dragon, her smoothly scaled groin starting to bulge as a nearly hidden slit parted, just the tip of her black flesh peeking from between those scaled lips as she continued to lavish attention upon the bear's writhing belly and stiffening cock. She stroked over his sheath, her motions helping to reveal the firming length within, steadily pulling it back from his rising tower.

While Yevgeni's member rose to meet the occasion, the bear himself noticed Shaylor's increasing state of arousal, "Well, I'm glad I'm not the only one enjoying the performance." Then he grimaced for a moment before releasing another groan of pleasure, his dick ascending near to full mast. "And--" he panted for a second "--feels like Zina's into it too."

She continued her ministrations, starting to stroke over his dick proper as she spoke. "Well, I figure she's probably rather egg heavy, isn't she? I'd hope she likes this! It wouldn't do to have her be shy when we're trying to get her to share her eggs." She paused in thought for a moment. "Does she actually get larger inside you when she's ready to lay eggs? And how many can she hold?"

The dragon's own member started to press out more from her cock-pocket, peeling the slit wider as her firming length pressed outward, each ridge of her spire catching on those lips momentarily before lurching forward, freed by the pressure her rising maleness exerted from within.

Yevgeni huffed for a moment in pleasure, at both Zina's pressure within him and Shaylor's without, before raising his head for a second to speak. "Oh, yeah, she's pretty heavy; she hasn't laid in some time. Her biggest clutch is about... forty or so. She doesn't get too much bigger, though--it's a lot of eggs, but," he held the thumb and forefinger of one hand about two inches apart, "they're only about that big, so it adds a bit, but not that much."

He patted his belly again and flopped his head back onto the bed, his belly continuing to wriggle, though it seemed more directed than before. At the same time, his cock was pushed the rest of the way to full mast by something extruding from within it, which came to a pause right before entering his dick proper.

Yevgeni stretched his back, humping up slowly, powerfully, the flaming, deep, fleshy pink of his shaft stretching and quivering a little as a bead of pre began to form on its tip. At the same time, he growled a deep, powerful growl of pleasure, both in appreciation of what had already occurred and in anticipation of services yet rendered.

"So... where's my girl going today? Mouth? Ass? You're a herm, so clit?"

"Ha, no openings in my clit, but I do think I could handle a few extra worms, like you said, so put em right in here." She bucked her hips, everting several inches of her dick, her genital slit grasping at each ridge as it lurched past those taut scales.

Yevgeni raised an eyebrow for a moment, before smiling wryly, using a finger to point his tip towards Shaylor's. "Well, if that's the way it's gonna be, I don't mind if I do. Looks like a feature-rich package; I'm sure Zina's going to be very pleased."

Shaylor flexed her cock, making it stand fast, tip to tip with the bear's for a few seconds before she reached down and eased the last ridge past her genital slit, revealing her cock to be a bit smaller than his and tapered to her spaded tip. "Well, judging from our sizes, I'd say that you're the one that's going to be getting a cock sheathed in yours. I'm sure with where Zina's at, you're probably already pretty used to that kind of thing, eh?"

She scooted closer, gently frotting the top thirds of their cocks together, her smoothly scuted urethra gliding against his urethral bulge.

The bear grunted in pleasure, his hands falling from his belly to his sides as Shaylor began to tease his member with her own, her scutes rubbing across his flesh, his belly continuing to squirm in anticipation. "Yeah, I can say I'm pretty used to stretching it out--though I have to admit, huff, that it's not too often this pleasurable an experience."

She straightened up, looking over his swollen belly at him and smiled, "Well, if we're going to do something this strange, might as well make it as pleasant as possible!" Her scuted cock-belly gently ground against most of his length as she sat up to look at him, creating quite the enjoyable sensation for both of them as their stiff spires pressed and ground against each other.

Sitting back down, she took each of their cocks, one to a hand and gently rubbed over them, feeling herself and him flex from the attention to their masculine muscles. "So, does she leave you all the way or just push enough of herself out to lay her eggs in another host?"

Yevgeni squirmed a little as their spires ground together, his dick pulsing and dribbling pre in anticipation of releasing its normal load, along with Zina's. After releasing another couple of pleasured moans, he panted and said, "You're such a tease, you know that?"

Then, in answer to Shaylor's question, he continued. "No, she'll stay inside me most of the way, just enough to lay her eggs, most of the time. Though if she has a particular fondness for a host to lay eggs in she might let herself through a little more." He gave himself another second to feel Shaylor feeling him--well, the both of them--up, happily bucking forward, as much as he could, to give Shaylor more to work with. "I take it this isn't your first rodeo."

She gave a little giggle at his minor complaint. "I have had some experience in the more internal parts of the male reproductive system. Now why don't we get started and I'll show you some of that experience!" And with that, she lined their cocks up, tip to tip and pressed her hips forward, her tapered glans pushing gently into his urethral entrance. She slowly pushed forward, her glans starting out thin, but steadily widening as she pressed inward, stretching his maleness around her tip and starting to push into his urethra proper, forming a bulge underneath his length as her tip passed through his glans.

The bear growled once more in his newfound bliss, Shaylor's tip pressing into his tight, precum-lubricated urethra, which though tight, stretched surprisingly readily--well, surprisingly until Shaylor remembered that Yevgeni had a host with a tendency to stretch it out for him.

As Shaylor pushed forward and in, she felt the bear's belly brush up against hers, the warm, fuzzy ball rippling and moving beneath her, and then the bear's hands, suddenly, gently, but firmly pushing on the small of her back, pulling her closer to him, her dick pushing further into his. Each scute and ridgecaught a little against his tip, stimulating both spires as they caught, slipped, caught, slipped, ratcheting her into him with his press.

When he stopped for a moment, he looked into Shaylor's eyes with the surprising expression of someone who, but for this moment, was a hopeless romantic.

"Kiss me", he ordered.

She smiled at him for but a moment before she leaned further in, pressing her lips against his, muzzle to muzzle as they shared a warm kiss as they slowly closed the gap below. Each push below caught on Shaylor's textured spire, whether on one of her cock's ridges or the scutes below, leading to many wonderful stretches and catches, each one taking a moment to push past, their flesh almost seeming to vibrate pleasurably with the many times that she lurched inward, stretching his urethra wider as her cock tapered larger as she pushed deeper into him. His cum-tunnel bulged visibly under his length, clearly showing the outline of the dragon's hidden spire as it quested deeper, pushing towards the eggworm that occupied his deepest recesses.

Yevgeni's kiss was deep, and powerful, and passionate, and interrupted only by his pleasured growling moans as Shaylor's shaft pressed deeper into his own, ever closer to Zina, who for her part was starting to rise further up his shaft, now stretched to near double its normal width. Shaylor's cock features rubbed against the smooth, stretchy, lubricated surface of his urethra, stimulating and titillating both of their members, and thus the both of them.

The bear continued to rub and press on Shaylor's back, sliding up and down her scaled surface from her shoulders to her rear, pulling her ever closer, ever more intimate with him, and his belly, and the worm inside it. As he did, Zina noticed, and began to explore the strange intrusion into her host's shaft, one end of her slimy, wormy body beginning to poke and prod around Shaylor's cock in exploration.

Shaylor leaned into that passionate kiss, returning it as well, her own arms coming to rest behind him as she embraced him. Some of her weight shifted onto the bear's belly as she leaned upon him, having to shift forward as they kissed. She hugged his belly as well, enjoying the way it shifted and churned against her flat stomach, the activity ramping up as Zina squiggled her way around.

When Zina first touched Shaylor's cock, she gasped into the kiss, surprised at the sudden touch inside her partner's length. It didn't take long for her to start enjoying the explorative touches that the worm made, making her "mmm" as she felt it wiggle around her firm flesh inside Yevgeni's warm, clenching tunnel. She gently bucked her hips against Zina, pressing against her body, trying to get a feel for what she would feel like when the eggworm decided to enter her new broodhost.

"Mmmm... she found you," Yevgeni said, between breaths, before continuing to kiss Shaylor deeply, passionately, cradling her head in one hand and pressing her butt down onto him with the other, finally pulling the full length of her member into his own.

As he did, a length of Zina's rope-thick, slimy body slipped over Shaylor's tip, catching for a fraction of a second before coming loose again. Zina noticed, squirmed back into her permanent host a few inches, then pressed the tip of her gargantuan length against Shaylor's, finally finding the hole to force her way into. After a moment's wriggling press, she succeeded, her length stretching both Yevgeni's and Shaylor's as she started to slither up and into Shaylor's body.

As the big slimy living noodle started to force its way out of Yevgeni's bits and into Shaylor's, Yevgeni began to quiver and release a long, loud, growling moan, pulling Shaylor's body as tightly to his as he could, clearly pushed right up to the brink of blowing a load.

Shaylor shuddered and cooed as she was fully sheathed in the bear's warm embrace and finally felt the worm catch on her tip, wrapping around it momentarily before drawing back into her host. She only had a short while to feel that slimy tip before it pressed against her spade-shaped glans, circling it for a few seconds before it gained entry at her tapered tip. She groaned as her glans stretched around the new intruder, bucking her hips as close as she could to her partner, pressing his gaping glans against her smoothly scaled groin, her pelvic muscles clenched in pleasure as the worm wiggled and slithered its way deeper into her urethra. Her stiff rod pressed against the meat of Yevgeni's cock, pushing against the top of his urethra as her staff curved upward with her constant flex, her muscles locked up as she was penetrated so thoroughly in such a sensitive place.

She broke their kiss as she wiggled in the bear's grasp, panting from the deep stimulation as Zina passed more than halfway through her cock, the scutes on the underside of her spire flexing and expanding around the girth of the eggworm sliding through that slick tunnel, and pressing against the flesh hugging tightly around the dragon's own length. She felt his cock start pulsating, moaning as those throbs and clenches around her shaft milked over her length, enjoying the way they squeezed and massaged her flesh while the worm wriggled against the inside of her maleness.

Yevgeni paused for a second to breathe, taking advantage of Shaylor's reprieve, while Zina continued through her urethra, stretching out her spire and by extension her slit as she passed through its base. Zina continued, pulsing and sliding through Yevgeni's and Shaylor's now-tied-together passageways, before stopping for a moment, pressing against the outside of Shaylor's prostate. Yevgeni noticed this, and commented, "Huh, she stopped. Wonder what's--"

And then Zina popped through into Shaylor's prostate, and the sudden thrust pushed Yevgeni over the edge, a surprised, aroused growl turning into a near-roar of ecstasy as he bucked into Shaylor and pulled her as close to him as he could, his worm pushed forward and into his current lover by his plentiful, hot cream, which covered the surface of her ridged and scuted spire before starting to leak into her slit and the space between them. His belly started to palpably deflate as hers inflated to match, the worm tying them together balling up and filling up Shaylor's prostate as she poured through the docked urethras connecting her and Yevgeni.

Shaylor panted and looked down as Yevgeni spoke, surprised as well by the unexpected pause in the worm's efforts, still shivering a bit at the press against her sensitive gland. She only got a moment's reprieve before the worm jetted through her prostate sphincter, pouring herself through that valve and triggering her partner's orgasm with the sudden motion through their nested urethras.

She moaned as her prostate was suddenly bloated with coil upon coil of the eggworm swiftly jetting into her, the endless loops of the worm piling up inside her small gland and forcing it to grow. Hot cum gushed around her length, some of it managing to follow the worm into her urethra, but most of it spurting out around her cock as it plugged his urethra, that flexible tube clenching and pumping over her intrusive spire. She huffed as his hot fluids poured into her slit, surrounding her hidden base with his heated seed and making a wonderful mess as it filled her cock-pocket to sloshing fullness, her slit lips bulging and bloated around his warm cum.

As her belly swelled with the size of her filling prostate beneath, she gently rubbed over her growing gravidity, the constant slithering and filling arousing her to no end, making her eyes flutter in bliss as her orgasm neared from all the wonderful things going on inside her.

Yevgeni's roar ended, his member still pouring worm into Shaylor's prostate and cum into her slit, his belly beginning to deflate as Shaylor's inflated in turn, and for a moment he could do nothing but breathe and hold Shaylor close to him, guiding her head under his chin, her breasts pressing against his chest, one arm ending up behind her shoulders, the other hand cupping one of her breasts.

He felt both of their bellies writhe, one emptying of its contents, the other filling, with a strange fascination for a few seconds. "I don't think she's ever gone this far into someone before." A pause. "I know I haven't loved it this much, at least for a long time."

Zina slowed down, and then stopped, and Yevgeni's belly had shrunk and Shaylor's grown such that his belly was only slightly bigger than hers was; their inflated abdomens bumped and slid across each other, Shaylor's smooth scales sliding across Yevgeni's soft, rough fur, the same worm wriggling more slowly inside the both of them. And then the bear braced for a moment, his hips bucking forward a bit.

"Oh, Zina's eggs are finally moving down." He looked into Shaylor's eyes, again. "I've given you my package, Zina's giving you hers... why don't you finally give me yours."

With one arm around Shaylor, Yevgeni lowered the other to his member, currently hosting another, and wrapped his hand around it, feeling an egg rise up out of him, through Zina, and as the egg started to widen both their members even further, the bear kissed the dragon one more time.

As the first egg pushed through her tip, she moaned into his kiss, squeezing herself against him, overwhelmed by everything, how her prostate ached so pleasurably with it being burstingly full of the eggworm, the unearthly warmth of his seed surrounding her spire at its base, baking it in warmth, and how his undulating flesh surrounded her rod, milking over her length from base to tip.

She bucked her hips, grinding her hugely swollen belly against his, huffing needily as everything shifted inside her, the seemingly endless amount of worm finally tapering off and leaving her achingly full and needy. With the first egg gliding down her urethra her eyes rolled back, right at the precipice of orgasm, and only a moment later, the second orb breached her cum-slit, pressing its bulk into her squeezing embrace and finally setting of her climax. She groaned as the second egg joined the first trailblazer, now two bulges smoothly making their way down her cock, bulging from its underbelly as the dragon shook and wriggled in orgasm, her bloated prostate squeezing around its new occupant as her internal orbs pumped her seed up from her depths. Her cum gushed into her swollen prostate, washing over the already slick worm, filling up the spaces that it didn't occupy until it finally made its way to the exit, sluicing around Zina as she nearly plugged the way out. Her cum spurted in awkward gushes as it jetted through her clogged urethra, having to work its way around not only the bulk of the worm inside her member, but also the large bulges of the eggs traversing through the worm.

Her draconic seed spurted and jetted from her clogged tip, mixing with the remnants of the bear's orgasm inside his shaft. She kept cumming, the constant stretch and pulse of eggs entering her cum-vein prolonging her orgasm as her seed kept struggling to slip past those large blockages that stretched her urethra wide.

Yevgeni moaned in intimate pleasure as he and Shaylor squeezed each other tightly, her body pumping seed into his urethra as his pet pumped eggs into hers. He petted and rubbed along her back in long strokes, from her neck down to her tail, kissing her head and neck as they clung to each other, her cum now mixing with his as it leaked out of her slit, now bulging in its own right.

The first of the eggs had passed through her urethra and into her prostate, and now Zina laid it, the jelly-like egg slipping from her end into Shaylor's prostate, filled with her own cum, with the worm that had just laid an egg into it, and, inside the worm, the next few eggs waiting to be birthed.

Zina herself was enjoying her own sort of pleasure, wriggling in rhythmic waves as she propelled the eggs inside herself out of one urethra and into another, both bellies pressed against each other, rippling as the members she passed through, in her host's grip, bulged with her eggs, passing through one by one from her home into what would be theirs.

Shaylor continued to writhe and hug against Yevgeni's warm, fluffy bulk as her nearly blocked orgasm dragged on, spurting and wiggling about as she was filled, everything working to keep her cumming from all the pleasurable things going on inside her. Her spire throbbed for several minutes as she was filled, awkward gushes of her cum erupting into her partner's bloated urethra, only to leak back out and into her genital slit, mixed with the bear's own seed.

Eventually, even her prolonged climax wound down, pulses still throbbing through her length as it calmed, feeling Zina still fill her with those precious eggs as she squirmed inside the dragon's prostate, eliciting pangs of pleasure whenever she touched a particularly sensitive spot inside the reptile. Shaylor panted as she calmed down, enjoying the afterglow along with Yevgeni as she rested upon his chest, swollen belly to swollen belly, feeling Zina wriggle around in both of their gravid guts, sharing her bulk nearly equally between them.

Still tied to his draconic lover, her dick still in his, Yevgeni said only this: "Well, that was wonderful."

Bringing her hand down, Shaylor rubbed over her genital slit, feeling the warmth through those stretched scales and how they bulged against her hand, keeping her hidden base doused in their combined liquid heat, feeling quite pleasant as they lounged against each other. She sighed happily before responding, sounding a little bit out of breath, "Yes, you and she both were."

Yevgeni let out a contented "mmmm..." as he caressed Shaylor, giving her a few more kisses, letting the weight of her belly press against his as Zina continued to work within them. "Thanks. Though she did most of the work..."

He looked at the 'hotel room' wall, into the middle distance. "Wow, that was good. Usually--there are your exceptions, but usually--the recipient host just wants to get infested, so he, or she, just bends over the bed, takes it in the ass, Zina drops the eggs off, it's over."

He looked back to Shaylor. "But that... that was something else."

"That was... you were loving it, loving her, loving me, and..." Yevgeni gave Shaylor another kiss. "And I loved it too, and," he patted his belly, and then hers, "Zina's still loving it.

"She loves me, and she's mine, but I've never seen her like anyone else more."

Shaylor blushed at all the praise, still a bit weak from their strong coupling and the aftereffects still happening inside her. "Yes, all three of us quite enjoyed that, I think!" She paused and alternately rubbed over both of their bellies, feeling the motion beneath their hides. "How many more do you think she's going to lay? I lost count long ago at 20 or so."

"Mmmmm, keep rubbing." Yevgeni's grip loosened a bit, and he let one arm fall, though the other was still around Shaylor. "Well, her usual clutch is around twenty, but she's been pent up a while, so...forty or fifty?"

He reached down and patted his own belly a bit. "She feels about halfway done."

"Should be another few minutes before she finishes, so", he grunt-sighed, squeezing his belly as Zina wriggled inside, "you got any more questions while we wait? About whatever--me, the lab, the worms, Zina, doesn't matter.

"Or we can just be," he huffed, enjoying the stimulation of his distended prostate being rubbed from within by his worm and from without by his partner, "enjoying each other's company for a while."

Shaylor panted as she calmed down from her extra long peak, quite enjoying how Zina wiggled around in both of them, the way she felt the worm against the insides of her expanding prostate, and from the outside, Yevgeni's less swollen, though quite large belly pressing its wriggling bulk against her own.

"Wow, that's quite a lot of eggs!" She moaned gently as another egg squeezed through a particularly sensitive spot. "Mmmfph... you said a quarter of them usually stay inside if they're deposited here?" She gently patted her swollen gut. "That's going to be quite a few more than just 5 if that's true!"

"Well", Yevgeni said, "depends on how much they like you. Five's as many as anyone's had, though that guy--mmmmph, that guy had a normal clutch, and ended the experiment early. Which makes sense."

"I mean, I have just one, and she--" Yevgeni patted both his and Shaylor's belly, sending pangs of pleasure through both of their prostates, Yevgeni inhaling sharply for a second. "...She's enough to round out two bellies."

Shaylor groaned happily at the petting, enjoying the way her prostate sparked with pleasure from the firm touch. "Definitely true! I guess I'll just have to find out then. Hopefully it's not too many that want to stay in there!" She laid back down on Yevgeni, enjoying the wiggling motion inside her urethra and belly, still feeling egg after egg slickly slide through her plumbing, bulging her cock widely around their girth as it slid deeper, eventually crowding her stuffed prostate further.

"Well, you chose to put 'em there. Not that I'm complaining."

The dragon grinned up at him, gently squeezing him tighter around his belly, hugging close and feeling the squirms through his belly that her action caused. "mmhmm... looking back, I wouldn't have picked any other way. This one was quite pleasant! I'll just have to deal with the consequences of my choices..." she trailed off into a giggle as she nuzzled his fluffy chest.

Yevgeni petted and stroked the back of Shaylor's neck as she nuzzled him. "Yeah, I suppose you will." He put his other hand on his own belly, slowly rubbing it, gauging its fullness, reading his pet. "She feels like she's tapering off, by the way; should be done in a minute or two."

"mmhmm..." Shaylor replied lazily, her muzzle still buried in his fur. Shifting a hand from his belly back to hers, she compared them, realizing that her taut dome was now just slightly larger than Yevgeni's. With the worm's bulk split between them, the transfer of eggs had finally tipped the scales, leaving her a bit rounder than him, not by much, but the difference was palpable as she caressed their bulky stomachs.

Yevgeni lay in silence for a few seconds, caressing Shaylor as Zina continued with the transfer, then spoke up: "You like me, don't you."

"Well, you do make a wonderful bed!" she said with a giggle before calming down and continuing "But, you are quite fun, and it does help that she sticks around with you. I certainly wouldn't mind doing something like this again if that's what you mean, friend." She put emphasis on that last word, speaking it warmly to him.

"Friend." Yevgeni considered the word for a second. "I like that. Though you'll have worms of your own, so Zina won't be necessary--not that she's going anywhere."

He paused for a second, the hand on his belly pausing before continuing its rubs. "Well, I think that's the last of her eggs out of my prostate; once she puts it in yours, she's coming home, and then we can... undock."

"Well, friends can always include benefits too... if that's what you're looking for." She grinned at him knowingly.

"Wouldn't mind that." Yevgeni smirked back.

"I suppose I'm going to be a lot less full in a minute, and you're going to be back to normal," Shaylor said. "Then I can look forward to filling back out as they grow. I'm sure they'll be fun when that happens, especially when they start moving. The worms don't do anything with each other once they're matured, do they?"

"I wouldn't be too much of an expert on having multiples; Zina's just one, and she's enough for me to handle. They typically reproduce asexually--ironically--though they'll have sex if they run into each other, say, in a body of water, or in the case of a cockfuck. They're hermaphroditic in that regard, so they'll both end up eggy afterwards." He paused. "Though they recognize their kin, so don't expect Zina here to fuck her daughters.

"And by that token, I doubt they'll fuck each other, if that's what you had in mind."

"Ah, I wasn't sure how much they interacted with each other. I guess I just have a full load to contend with, rather than them multiplying on their own in there."

Yevgeni moved his hand from his belly to Shaylor's, rubbing it as the last of Zina's eggs moved out of his urethra into hers. "If I recall correctly, they alternate egg-laying, so if you have enough--which you probably will, given the size of Zina's clutch--you'll be constantly eggy, as opposed to me: I won't be again for a few days at least."

"Hmm... I'll have to see how it is then. That might be fun, though rather encumbering with that many worms and their payloads. I did quite enjoy this first experience with an eggworm after all!"

"Feels like she's wrapping up."

Shaylor wiggled her hips, feeling how connected they still were with the worm threaded through both of their urethras. "I guess this is gonna take a while, eh? Quite a lot of length for her to retract back into you."

Yevgeni "mmmmfed" for a moment in response to Shaylor's wiggling before replying. "Yeah, it's going to take a minute or so, given the length and how exhausted she must be. Laying a clutch that big does a number on her."

As he spoke, Zina laid the last of her eggs and then lay near-still for a moment, wriggling only slightly, and only slowly, resting from her exertion. She needed a moment to--not breathe, but something like it. Yevgeni rubbed Shaylor's belly, speaking not to her but to Zina. "Alright, time to come home, girl." And then Zina started to move.

Shaylor took that time to rest as well, having thoroughly enjoyed every single egg that pushed through her cum-vein this whole time, but at the same time relishing the restful moment as Zina calmed down inside them. The dragon slightly missed that endless string of eggs sliding down her urethra, but contented herself to enjoy the gentle rubs from Yevgeni upon her quite bloated prostate, twangs of bliss running through her as he touched that sensitive gland just beneath her scales.

The bear inhaled and then let out another of his low, growling moans as the worm started to retreat back into him, his prostate starting to swell once more. Then, still moaning, he kissed Shaylor, pulling her closer as the worm tying them together started slipping lethargically out of her prostate, through her urethra and shaft, back into him, up his urethra, through his sphincter, and into the prostate the worm called home.

Shaylor moaned in unison with Yevgeni, leaning into his kiss, her eyes fluttering as everything inside of her shifted at once, coil upon coil of worm slithering around inside her prostate as Zina dislodged herself, starting to pull her extremely long body back from its temporary nesting place. The worm's slick body pulled and tugged on the dragon's taxed flesh, once more stimulating the sensitive nerves throughout her reproductive tract, the long string of her body sliding against the entirety of Shaylor's depths, all at the same time.

Zina started slow, also clearly tired by her efforts, slithering and pulling her body from Shaylor's prostate, starting to slowly flatten her swollen belly as she steadily emptied herself from that masculine gland. Shaylor's urethra wiggled around inside the bear's, the movement inside her own transferring directly to her partner's internal walls, wiggling and waving through their conjoined lengths, both of them feeling everything that the worm did on her way back to Yevgeni.

Once again, Shaylor placed a hand upon each of their bellies, wanting to feel the changes as she emptied, and the bear filled back up, gently rubbing over the writhing bulges inside them both.

Yevgeni also put a hand on each belly to feel his grow and Shaylor's shrink, slowly, as each inch of their occupant's body passed through their quivering dicks, and then he embraced Shaylor once more. His groaning kisses were interrupted only by brief, short, sharp inhalations through his nose; his eyes were closed; his arms were wrapped around Shaylor's back, pulling her in as close as he could. As part of his job, he had many a sexual experience, but rarely, if ever, had he had such an intimate one, and he wanted it to last as long, and be as wonderful, as he could possibly make it.

The dragon quivered in his grasp, her cock flexing occasionally as the eggworm glided through it, the mix of both of their seeds, and the slick nature of Zina allowing her to slide smoothly through Shaylor's urethra, making it wiggle about in a sinuous motion beneath the meat of her spire. She panted as Zina continued to leave her belly, feeling like a massive, thick piece of spaghetti was being sucked right out of her prostate, and the sheer number of coils wound up inside her stretched gland were making it take a very long, and pleasurable, time as her belly started to flatten out.

Yevgeni's belly swelled as Shaylor's retracted, virtually pushing her belly back into her with his own, though of course it was Zina doing all the moving, her coils squirming lazily as she pushed back into her more permanent host. His fuzz rubbed against her scales, both bellies rippling slowly in tandem as Zina passed from one prostate to another, stimulating her entire path as she did, hardening both members she passed through, tightening the lock they had on each other.

As Zina left, Shaylor started to more clearly feel the gelatinous eggs she left behind, a few dozen of them, still bulging out her belly, not to the extent it was before, but no small amount either. Yevgeni, meanwhile, felt his girl coming home, stretching and stimulating his prostate and urethra even more as her coils wrapped around and piled upon one another, her body wriggling to get comfortable in the ever-increasingly cramped space. Yevgeni let one arm free from Shaylor for a moment, rubbing his belly and giving some words of encouragement: "Almost there, girl, you're almost there," before he returned to embracing his draconic partner in passion.

Shaylor slowly rose higher, the bear's belly slowing filling back up and lifting her up. Her own gut ground against his bulging dome, much of the length of Zina having left her prostate, finally allowing those squishy eggs to press against her walls, gently rubbing against Yevgeni's firm stomach through her prostate wall, feeling quite pleasant as they squished and pressed against her insides.

Her swollen prostate steadily emptied of slithering worm, the dragon hugging Yevgeni's gravid gut as it grew underneath her, feeling every foot of worm that drained from her depths, and enjoying it. Both of their members certainly showed how much they were enjoying the worm's extraction, firm flesh hugging around firm flesh, both spires hard and throbbing as Zina's body coursed through their urethras.

The last of Zina's coils slowly unwound from around her progeny in Shaylor's prostate as her long, slimy length began to make its final pulses out of it, the very tip of her beginning to slide in a long vertical circuit between the eggs she laid and the gland that would hold them tight. Shaylor's belly, though smaller than it was, still bulged out considerably, making her look pregnant, just a few weeks from term. Unlike a pregnancy at that stage, however, this was just the beginning, and she knew that. Given enough time, she would be bigger than the bear who had facilitated this. Given enough time.

Yevgeni's belly, meanwhile, approached the capacity Shaylor had seen when she first entered, though she knew it wouldn't quite reach it, not at the moment anyway--the worm's eggs were in the dragon now, not the bear, and there they would be until they hatched, calling the dragon their home.

Shaylor felt the worm slide around her prostate as the bear continued to embrace and caress her, until only a few inches of her remained, and then, with a last thrust, the worm pushed and then popped through her sphincter, rippling her way through her urethra, through his, into her home.

As the last of the worm slithered around in her prostate, Shaylor shivered in pleasure as the decreasing length of the coils in her organ meant that it started sliding from her depths faster as the end approached, the very tip of Zina's body shooting between eggs and tender flesh as it unwound from her prodigious bounty. The dragon moaned and held her belly in her hands, nearly overwhelmed as that tail whipped about inside her prostate, slipping and sliding around her new eggs until Zina finally pulled the last of her coils free of that stretched gland.

That tail-tip glided through Shaylor's urethra, slickly sliding through her depths, allowing the gaping tunnel to slowly contract behind the worm as its girth left that widened passage. She gasped and exhaled shakily as Zina finally left her member, feeling her urethra contract smaller now that it wasn't forced wide around the worm's girth. Her hand to her belly, Shaylor rubbed over her pregnant form, feeling quite maternal and loving, even if it wasn't her own brood, and even if these eggs were in the "wrong" place. She caressed her gravid bulk, feeling over the jiggly eggs as they bulged from her belly, readily felt through her round dome if she pressed down against her motherly swell.

Peering down her newly enlarged form, she smiled and spoke "You know Yevgeni... I think I could come to love what I've got going here..." She paused and sat up a bit, caressing her pregnant form "And I can't wait to see where it goes from here."

Yevgeni gasped and growled in pleasure, in unison with Shaylor, as Zina slipped all the way out of her and into him, their hardened members clenching into the space the worm once filled. He placed a hand on his belly, feeling the worm inside wriggle and pulse up his urethra, until the rest of its length slipped up through his urethra and into his prostate, his sphincter now, after who knew how long, clenching shut, his worm, his pet, now safely inside him.

He breathed in for a moment, closed his eyes, and then exhaled, a deep, long, powerful sigh of pleasure, of contentment, and almost, maybe, of peace. Then he opened them again, looking down to his belly, to the worm within, and gave his belly a caressing stroke. "Welcome home, Zina."

Zina squirmed within, lethargically, but not invisibly, his belly slowly rippling and thus rippling against the dragon's belly and the shifting worm's progeny within.

Yevgeni looked back up to Shaylor. "Let's seal it with a kiss and then detach, hm?"

Looking up from her self-involved caresses, she grinned impishly at him before leaning forward and licking his nose. "Yes, let's!" she replied before laying over his worm-filled belly and kissing him one last time, enjoying the way that Zina squirmed lazily against her belly.

As they shared that kiss, she flexed her cock inside his, teasing over his urethral walls one last time, pressing her firm rod up against the meat of his member from the inside.

As Yevgeni felt the ridges and scutes of Shaylor's member slide and grind against the smooth musculature of his urethra, he gave her one, last, long, deep, strong, passionate kiss, pulling her into him as much as he could before he would let go, moaning and growling in intimate pleasure as he savored her taste and feel and her weight and her presence: her shaft in his rod and his tip in her slit; his belly, full of a worm that called him home, pressing against hers, full of worms that would call her the same; her breasts pushing against the fluff of his chest; their lips locked; reptile with mammal; scales against fur; tied, of all things, by a worm.

The word was thrown around a lot, and not without cause, but now, this moment, this strange union: it was bliss.

Shaylor felt the passion in Yevgeni's kiss and returned it, leaning in deep as they locked lips while they were also locked together down below, her spire giving one last round of teasing inside the bear's urethra. She ground her flexing length around his tunnel one last time, scutes and ridges gently grinding over his walls as she bucked a couple of times during their kiss, before she started pulling back ever so slowly, the bulges her ridges made in the underside of his cock starting to traverse up towards his tip as she started pulling back from his warm, squeezing embrace.

All three of their combined juices splashed out around Shaylor's cock as she finally pulled the first ridge free, letting his yawning glans free from that wide girth that it was forced to hug around, slowly shrinking back towards the thinner part of her maleness between her ridges.

Yevgeni groaned more loudly, sharply, as Shaylor's first ridge pulled loose, and the combined fluids of him, her, and the worm now inside him spilled from his slit onto his shaft and his balls and dripped down onto the sheets. His member, shuddering for a second under the sudden flood, clung to hers, holding tightly to every ridge, every bump, as though it knew it was time but wasn't quite ready.

Shaylor shivered as she dragged her spire back from the bear's depths, feeling how his clenching cock squeezed and caressed her own exotic member, making their respective slick flesh grind and slide against each other, the dragon having a much more taxing job pulling her length from of his with how his urethra hugged and clenched around her maleness. Each ridge was a trial to pull free, Yevgeni's grasping embrace holding onto each ridge, making her urethral scutes catch blissfully on the bear's walls, ripples of pleasure running through the underbellies of both of their cocks with every attempt to pull out that the dragon made. She neared her second cock-ridge only with much trial, every inch dragging and pulling on both the dragon's and her partner's sensitive cock-flesh.

The second widening of her length slowly sealed Yevgeni's glans once more, blocking the leakage from his cock, and as she pulled further, stretching his urethral entrance around her widest girth once again, his glans clenching around her width as it was stretched around another larger part of her masculinity.

Yevgeni huffed with pleasure as the second of Shaylor's ridges popped from his glans, his member gaping open for a second before clenching again around hers, tightly hugging every feature of her shaft that remained inside his as they slid across one another, continually exciting every nerve in his member, keeping his cock hard and tight.

The bear looked down to the action--well, tried to; there was a belly in the way--then back up to Shaylor's muzzle. "Something tells me you're not in a hurry."

She grinned back up at him "Well, you're the one that said this time was so much better than the others!"

Tugging her hips, she pulled on their locked lengths, trying to ease their rods apart, panting as she did so from everything going on inside the bear's clingy cock. Pulling hard once more, she finally manage to dislodge his hold, suddenly pulling herself free, her last two ridges, and then her glans popping through his clenching urethra and glans in quick succession, 3 slick slurps ringing out into the room as they passed through his cum-slit, a small flood of fluids accompanying each audible pop.

Shaylor gasped as the sudden release of her spire, breathing heavily as she rested, finally free of Yevgeni's warm embrace around her draconic pride. The bear's glans still gaped wide, having been stretched for quite a while around the reptilian length that had occupied his urethra for so long. As she watched, it started to close back up, the yawning chasm at the tip of his cock slowly retracting as his flesh returned to normal.

The bear gasped as Shaylor's member popped out of his and held open for a second before it began to close and he moaned loudly once more in pleasure, his vocalization, like the others, tinged with a warm, deep ursine growl. As his cum-slit tightened shut, spurting out a bit of fluid as it did, his groaning lowered into almost a deep bass purr before trailing off, then inhaling and exhaling the first of a few heavy breaths.

After a moment, he regained the presence of mind to speak. "I did say that, and it was." He looked down to his and Shaylor's bellies, still rubbing up against one another, and gave hers a light pat. "How about you get next to me and we sit up so I can better appraise that belly of yours."

Shaylor laid upon his fuzzy belly for a few more moments after freeing her length from his accommodating urethra, resting from the surprisingly arduous task. Eventually, she rose in response to his request, lifting herself up and crawling closer to his upper body, her gravid belly swaying slightly as she moved. When she reached a closer spot, she sat up, putting her pregnant bulk on full display for Yevgeni, thrusting her hips forward to emphasize how filled her prostate was just below her taut scales. Her draconic spire was still on display below her maternal dome, lightly pressing against it as it jutted upward. "How's this?"

Yevgeni pushed himself up to meet her, the sides of their bellies brushing against one another slightly. His spire too was still erect, though his belly, being a bit bigger now that his worm was home again, covered most of it, such that only his tip was visible, and even then only from the front, as his belly pushed down against it.

He reached around her with one arm and began to rub her belly, feeling her prostate's large, though comparatively modest girth compared to his. "Not bad." He patted his own belly with his other hand, wincing slightly--it was in fact a prostate that was stretched near to its limit by the worm inside him. "Looks like a clutch of...forty or fifty.

"I don't think anyone's taken that many to the prostate before, so Dieter and company are going to be very interested in you. If you decide to stick around of course."

Shaylor grinned at hearing that she had made a record, "Well, that just means I'm the _best_test subject, right?! And yeah, I do plan on sticking around... we'll just have to see how big this beautiful clutch gets."

He rubbed his own belly with the hand already on it, feeling the worm's squirms slow down as she got into a more comfortable position, the bear who was her host still breathing heavily. "That was a ride; I'm exhausted. Zina definitely is too."

She moaned softly, as he rubbed her swollen belly, enjoying his caresses against her prostate as he felt over the numerous eggs within. She joined him in the exploration of her pregnant prostate, feeling over the firm dome it made in her gut, huffing softly as she basked in the maternal feelings washing over her as she caressed her new brood.

She sighed, sounding tired, just like the bear. "Make that all three of us. I think I'll just stay here with you for a while." Laying down, she settled herself next to him, one of her hands drifting to Yevgeni's much larger belly, gently caressing his swollen roundness as she continued to admire her own pregnant bulk.

Yevgeni "mmmm"ed in response to Shaylor's extra attention to his belly and lay down next to her, continuing to rub hers with one hand while he rubbed his own with the other. He rolled over onto his side, almost squishing Shaylor's belly with his own, before scooting back across the bed a little ways, rubbing her belly with one hand, guiding her head toward the fluff of his chest with the other. "We still have a couple hours' time before we have to leave; let's... let's all rest for a bit." As he began to nod off, his head coming to rest over hers, his arms coming to rest around her belly, his worm coming to rest in his, he managed to let out one sentence before slipping away: "Remind me to get your contact..."