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"submission_left_thumb_huge_x": "300", "submission_left_thumb_huge_y": "300", "submission_left_thumb_large_x": "200", "submission_left_thumb_large_y": "200", "submission_left_thumb_medium_x": "120", "submission_left_thumb_medium_y": "120" } ], "description": "As a sequel to [url=https://inkbunny.net/s/1807288][i]Two Pasts, One Future[/i][/url], Evie and Lilia go back to the research lab where Evie grew up for her periodic checkup. It will be Lilia’s first time experiencing some of the tests that have become all too familiar to Evie as the researchers push the boundaries of silence—and Lilia’s young body—to the limits.\nThanks to @Bigchris369 for commissioning this story!\n", "description_bbcode_parsed": "As a sequel to Two Pasts, One Future, Evie and Lilia go back to the research lab where Evie grew up for her periodic checkup. It will be Lilia’s first time experiencing some of the tests that have become all too familiar to Evie as the researchers push the boundaries of silence—and Lilia’s young body—to the limits.
Thanks to \r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t
\r\n\t\t\t\t\t\t\t\t
\r\n\t\t\t\t\t\t\t\t\tBigchris369\r\n\t\t\t\t\t\t\t\t
\r\n\t\t\t\t\t\t\t		\r\n\t\t\t\t\t\t\t\tBigchris369\r\n\t\t\t\t\t\t\t
for commissioning this story!
", "writing": "The Checkup\n\n(c) 2021 Jack Doe. All characters belong to their creator. Do not distribute without all copyright notices and disclaimers intact.\n\nWriting this story does not constitute endorsement of the events depicted herein by the author. Readers are explicitly discouraged from engaging in any activities that are illegal or harmful to themselves or others.\n\n------------------------------------------------------------------------------------------\n\nLilia looked at the imposing building and swallowed hard. Nervously, the fox-rabbit-otter mix looked up to her adoptive liger mother for reassurance.\n\n``This is where you used to live?'' she asked hesitantly.\n\nEvie laughed. ``Yep, until I was 18,'' she said, sighing wistfully. ``It always feels like a bit of a homecoming for me. The researchers and I might not have been `family' in the normal sense, but they cared for me like a parent cares for a child - like I care for you.''\n\nThe nine-foot tall hermaphrodite knelt down to ruffle Lilia's blonde hair between her long, erect ears and smiled reassuringly.\n\n``I can see how it would look scary to someone who wasn't used to it,'' she said thoughtfully, standing back up, ``But inside, it's home.''\n\nShe extended her hand, and her three-foot-tall daughter reached up to take it, feeling a little reassured but still reluctant to go into the big, gray research facility.\n\n``Evie! You're back!'' a voice called as soon as they got inside.\n\nDespite her size, the liger was nearly bowled over backwards as Sam, one of the researchers, came up and gave her a bear hug. Though probably around 20 years her senior, the researcher had a strange vivacity about him that dated back as far as Evie could remember. Evie chalked it up to passion for his work.\n\nSam stepped back, and Jillian, another researcher who had watched Evie grow up, stepped up to embrace her warmly.\n\n``It's good to see you again,'' she said. Looking down at Lilia, she smiled and knelt. ``Well, hello. You must be Lilia. Evie's told us a lot about you.'' Glancing at Lilia's arms - which matched Evie's light- and dark-purple striped pattern - she grinned. ``So, it is true,'' she murmured, reaching down subconsciously to feel of the hair where it changed colors from purple to tawny. ``Amazing.''\n\nLilia bit her lip and looked up shyly, but then brightened and ventured a smile.\n\nJillian pulled herself away from her daydreaming. ``We've got to run some tests on your mother to make sure everything is okay with her,'' she explained. ``You're welcome to watch, if you like?''\n\nLilia looked from the researcher to her mom and back, then nodded.\n\n``Splendid.'' She rose and addressed Evie. ``We'll be in lab #1,'' she said. ``I'm going to grab some assistants and will be in shortly.'' She started to leave, then hesitated. ``If it's all right with the two of you,'' she added, ``We'd like to run some tests on Lilia, too. She's the first instance we've had where you've healed someone and then come out to be able to talk about it.'' She grinned sheepishly. ``I'd be lying if I said we weren't going crazy wanting to study the results.''\n\nLilia looked up at Evie uncertainly. Evie petted her head reassuringly. ``Let's see how you feel after watching some of the tests on me,'' she said, then addressed Jillian. ``I don't want any trauma for her. Poor kid's had trauma enough for several lifetimes.''\n\nJillian nodded, then smiled at Lilia. ``I promise we'll be gentle,'' she said reassuringly. ``You'll have the opportunity to see how your mom does, and if it looks like something you'd be willing to try, we can proceed.''\n\nLilia hesitated, then nodded understanding.\n\n``All right. I'm going to go find those research assistants. If you'll get settled into lab #1, we'll be in shortly.''\n\nEvie nodded, the researchers left, and she turned and led Lilia to the lab wing. Exiting the wide-open entry foyer via a doorway on the left, they began to pass the labs, each of them with various experiments going on. Machinery whirred softly, and occasional gasps and groans from the study participants greeted their ears as they walked along. \n\nTheir progress was fairly slow, delayed by Lilia's frequent stopping to gawk at the experiments. In one, a mouse about Lilia's size had been blown up to be almost spherical, and as Lilia stared, wide-eyed, the mouse groaned, her eyes rolled back in her head, and she climaxed, blowing thick, white liquid all over the room amid yelps of surprise from the researchers. \n\nIn another room, a young stallion about Lilia's age was strapped into some kind of metal rigging. He seemed to be struggling; his hands were balled up into fists, and the metal supports were shaking as some kind of milking device pumped vigorously at his penis. Thick, white fluid gushed into a clear, six-foot-wide tank beside him, agitating the frothy fluid and making its level rise quickly. Only then did Lilia realize that he wasn't struggling to fight the machine; he was climaxing over and over again.\n\nA third room made Lilia's jaw drop on seeing a puma a little bigger than she was restrained on all fours as a piston drove a dildo six inches in diameter and over three feet long into her. She seemed to really be enjoying herself.\n\n``Come on, Lilia,'' Evie said, tugging her hand. ``There'll be plenty to watch when they start my experiments.''\n\nLilia reluctantly pulled her eyes away and followed her mother down the hallway to a large room at the end plainly marked ``LAB 1''. Through the glass pane in the door, Lilia could see a white room with all kinds of equipment, and as her mother opened the door and they stepped in, the young mixed-breed gasped. \n\nIn the middle of the room was an oversized exam table. A robotic arm nearly as tall as Evie stood folded up offset from one wall, and a wide array of dildos ranging from the size of a finger to bigger than Lilia stood arrayed in a semicircle behind it. A tank much like the one she'd seen in the room with the colt stood empty, its inside polished crystal clear between uses. It was so big that two of Lilia could have laid down in it toe-to-ears and not touched both sides. An entire wall was jam-packed with racks of monitoring equipment. Wires hung everywhere, and countless monitors displayed a variety of colored lines and indicators. A ventilator and defibrillation cart stood close to the exam table, and the ceiling was covered with an array of positionable lights.\n\nYet despite all these amenities that made the room resemble an alien anal-probing laboratory and unnerved Lilia, the thing that caught her mother's attention was a line of coat hangers attached to the wall beside the door. Most of them held neatly-hung lab coats, but a few of them were spares. As the liger stripped off her shirt and bra, she smiled.\n\n``As a kid, I always wondered what these hangers were for,'' she said to Lilia. ``Every lab had them, yet there were never enough lab coats to fill them all up. I guess now I know,'' she chuckled sheepishly, hanging up her clothes.\n\nSeeing Evie naked wasn't unusual for Lilia. It was literally spending time in Evie's womb a year ago that had restored her forearms and given her sight in her eye after a terrible encounter with some rats that had eaten parts of her alive - and would have finished her off if given the chance. But, the healing properties of Evie's vaginal fluids had done more than just repair her broken body. They'd given Lilia much of her mother's stretchiness, and they'd also substantially increased her libido, a side-effect of the experimental drugs given to Evie that the liger had wrestled with most of her life. Though they called themselves mother and daughter, there was no blood connection between them, and they decided that given the circumstances, taking advantage of each other's raging hormones to satisfy their own would be in both their best interests. As a result, they had intense, mutually satisfying sex frequently, and it was for this reason that Lilia thought nothing of it as her mother disrobed.\n\n``Do my eyes deceive me?''\n\nThey turned to the door, where an aged otter had stepped in and was peering curiously at Evie.\n\n``Dr. Brunson!'' the liger cried, and despite her nudity, reached over and scooped the otter up in a big hug.\n\n``Evie, it is you!'' the old researcher beamed once she'd put him down. He gave her a mock-disapproving glance. ``You're rather late for your annual check-up, young lady,'' he said, tapping his watch.\n\nEvie rolled her eyes and chuckled. ``I know,'' she confessed. ``I've been held up at work, and playing parent'' - she gestured to Lilia - ``has been rather more challenging than I thought.''\n\nThe otter looked down at Lilia and cocked his head inquisitively. ``Aren't you an adorable girl?'' he asked. ``This is the one you healed; the markings on her arms and her eye are hard to miss,'' he said over his shoulder. Addressing Lilia, his wizened face lit up as he asked, ``What was it like? What did you feel?''\n\nLilia opened her mouth to speak but couldn't seem to form words. The old researcher's enthusiasm was like a warm glow, and it felt more natural to bask in it than to spoil it by speaking.\n\n``She's not a mute, is she?'' he asked, glancing up at Evie.\n\nThe liger shook her head. ``No, she's just shy and a tad overwhelmed,'' she laughed. ``I hadn't realized it, but as we were walking down the lab wing, it occurred to me that for someone who didn't grow up here, this place is a lot to take in.''\n\nThe otter nodded thoughtfully. ``Would love to run some tests,'' he hinted. ``How old are you, Lilia?'' he asked.\n\n``I'm twelve,'' Lilia replied, breathing a sigh of relief at finally being able to form words.\n\nDr. Brunson nodded. ``A perfect age. As you might recall, Evie, that was when we began testing you.''\n\n``All too well,'' Evie chuckled.\n\n``I promise it won't hurt,'' Dr. Brunson said. ``It should feel very good.''\n\n``Jillian already ran the idea past us,'' Evie said. ``They're going to let her watch as they run my tests and see how she feels about it afterwards.''\n\nThe otter nodded. ``Quite right, quite right. That Jillian has done marvelous things with the place since I handed the reins over to her last year,'' he said. ``She always was a bright assistant, but now that she's got the power to steer in her hands, she's really impressed me.''\n\n``Handed her the reins? Surely you're not retired?'' Evie asked in surprise.\n\n``Oh, no, of course not. I'll retire when I curl up in your womb and go to sleep forever,'' the otter replied with a glint in his eyes. ``What was that sheep's name?''\n\n``Mr. Wilkerson,'' Evie replied uneasily.\n\n``Ah, yes. His words stuck with me after that experiment, you know. The more I've thought about it, the more I like the idea.''\n\n``Well, maybe I don't like the idea of killing my mentor and father-figure,'' Evie chuckled. ``Especially without you there to throw the switch that makes me do it!''\n\n``I mean, we could arrange that,'' Dr. Brunson said, the telltale far-off look coming over his face that appeared when he was devising a new test. ``Run some wires out of you, and once I'm nicely settled in, I could press the button to send a nice jolt through your groin and vanish. What a climax to my life's work - you'll pardon the expression, of course - to finally experience firsthand the thing that I've only ever been able to study through others?''\n\nEvie shriveled up her nose. ``I dunno how keen I am on having wires run out of my pussy, Dr. Brunson,'' she teased.\n\n``Ah, well, there's always wireless. Did you know the body is nearly transparent in the 400 MHz band?''\n\nEvie rolled her eyes. ``Yes, Dr. Brunson,'' she said, shaking her head and grinning. ``You've only told me a hundred times.''\n\nLilia watched their interaction at first with reticence, but the familiar, jovial relationship her mother shared with the old researcher seemed to put her at ease. Evie had mentioned discomfort during some of the tests, and Lilia had assumed she was downplaying it or sugar-coating it, but as relaxed as she was, it really seemed that she bore no ill will towards the otter who had run too many experiments on her to count. To Lilia, that silent communication told her more about the way the researchers treated Evie than anything the liger had ever actually said about her childhood.\n\n``But we're losing precious time,'' Dr. Brunson was saying as he patted the exam table. ``Come on, kiddo. Up you go.''\n\n``He means me,'' Evie laughed as Lilia stiffened, eliciting a chuckle from everybody.\n\nJust then, Jillian walked in, accompanied by Sam and a couple of research assistants probably in their late teens or early twenties that Evie didn't recognize.\n\n``Evie, this is Laura, and this is Toby. They'll be assisting with the exams today. Laura, Toby, this is Evie, the most successful candidate to pass through our program.''\n\n``It's really an honor!'' Toby gushed, stepping forward to shake Evie's hand. ``You're a legend around here.''\n\n``Hard for you not to be when studying every one of your experiments is compulsory learning,'' Laura said wryly.\n\n``No time to beat around the bush,'' Jillian said. ``We can exchange pleasantries as we get started. Let's start with a physical, and then we'll insertion tests 1, 2A, 3, and 4.''\n\n``A physical?'' Lilia asked, unimpressed and a little disappointed. ``That's all?''\n\nJillian chuckled. ``I like this kid,'' she said. ``How about we give you a physical, too?'' she asked. ``It'll, uh, be less boring that way.''\n\nA flicker of amusement traced over Dr. Brunson's face, and he flashed a thumbs-up to Jillian behind Lilia.\n\nLilia hesitated, glanced at her mom, who gave her an encouraging nod, and then nodded herself.\n\n``Great!'' We'll just set up a second exam table right here, and we can do them both at once.''\n\nThe assistants wheeled a portable exam table in, and Lilia climbed up on it next to her mother.\n\n``Go ahead and collect their vitals while we get the insertion test rig ready to go,'' Jillian said.\n\nLaura and Toby got to work, going through all the usual motions of listening to their hearts and breathing, looking at the backs of their throats, taking their pulse and blood pressure, and so on. When it came time for the well-female exams, the research assistants decided among themselves to have Laura examine Lilia so the girl wouldn't be embarrassed by having a guy checking her out. Toby, meanwhile, examined Evie, who had no such compunctions.\n\nLaura helped Lilia to lie back and put her feet up in the stirrups. Though the girl had been nude around Evie many times, there was something a little embarrassing yet also titillating about being put on display like this.\n\n``This might feel a little uncomfortable, but just relax, take a breath, and let it out,'' Laura said as she slid a speculum between Lilia's labia.\n\nThe mixed-breed cringed as the cold metal spread her open.\n\n``Feeling okay?'' Laura asked.\n\nLilia nodded. ``Um, a little, uh...'' she trailed off, blushing.\n\n``A little what?''\n\n``It's all right, Lilia,'' her mother said when the girl hesitated. ``You know it's not a bad word, and these guys need you to be totally open and honest with them.''\n\nLilia bit her lip and nodded. ``A little horny,'' she admitted.\n\nLaura smiled and made a note of it on her clipboard. ``Absolutely nothing wrong with that,'' she said, rubbing Lilia's shoulder reassuringly. ``Has it always been like this, or did it change at any point?''\n\n``Oh, yeah!'' Lilia said emphatically. ``I wasn't like this at all before Dr. Evie healed me. After that, well...'' She trailed off again, but everybody knew what she meant.\n\n``Fascinating,'' Dr. Brunson murmured from across the room. ``Absolutely fascinating.''\n\nHe toddled off to one of the monitors and began twiddling with knobs and dials. Meanwhile, Laura and Toby were completing their gynecological exams, with Laura noting that Lilia seemed to have inherited much of Evie's characteristic stretchiness.\n\nThey moved on, with Toby proceeding to do a penile and testicular exam on Evie while Laura performed a breast exam on Lilia. But, as she pressed down on the girl's chest to feel for lumps, she gasped in surprise on feeling her fingers sink into the girl's chest.\n\n``Oh!'' she said, ``Well, now, that's interesting.''\n\n``Bedside manner, Laura,'' Jillian chided her, chuckling.\n\n``What is it?'' Lilia asked worriedly.\n\n``Nothing to worry about,'' Laura replied reassuringly and grinning sheepishly. ``I had forgotten that many of our participants end up with stomatic areolae, and it surprised me.''\n\n``Stomach-airy-hola what?'' Lilia asked, perplexed.\n\nEvie burst out laughing. ``She hasn't been trained in medical jargon from a young age,'' she said. ``She means that your nipples invert like mine do and can take things into them. Stomatic means they form stomas - holes - and areolae are your nipples.''\n\n``Ohh,'' Lilia replied, grinning sheepishly.\n\nJillian gave Laura a dirty look, and the researcher cringed. ``Sorry...I'm not really used to working with kids,'' she admitted.\n\n``Not to worry; it's a learning experience for everyone,'' Sam piped up as the robotic arm came to life and started performing its homing routine. ``We all do it at first.''\n\nEncouraged, Laura pressed her thumbs against Lilia's nipples and felt as her hands sank into the girl's chest.\n\n``Does that hurt?'' she asked.\n\nLilia shook her head. ``No,'' she said nonchalantly.\n\n``Good, good.'' Laura wrote down some notes and then looked up. ``I think we're about done here,'' she announced.\n\n``Just finishing up here, too,'' Toby said, giving Evie a final pat on the shoulder.\n\n``What timing!'' Sam said as the robotic arm returned to its initial folded-up position and a green ready light lit up, ``I'm ready to start!''\n\n``Don't worry,'' Laura laughed, seeing Lilia's saucer-like eyes watching the robot's every movement, ``We'll test on your mom, and if it looks like something you'd be comfortable with, we can try a little bit on you, too.''\n\nLilia nodded hesitantly as Evie lay back and adjusted the positions of her feet in the stirrups so the researchers could strap her legs and wrists in place. Then they applied a couple of straps of surcingle over her waist and chest.\n\n``Why are you strapping her in so much?'' Lilia asked, a little alarmed. ``Are you okay, Dr. E?''\n\nEvie looked up and chuckled. ``Yes, Lilia, I'm just fine,'' she replied easily. ``The straps are to keep the machine from shoving me up on the exam table. It makes it so I don't have to fight to stay where I am and allows me to completely relax.''\n\n``It's important that she is relaxed because if she tenses, it makes her less stretchy and messes up the test results,'' Laura chimed in.\n\nLilia nodded, and the researchers finished their preparations.\n\n``Whaddya say, Jillian?'' Sam asked. ``Start with a #24?''\n\nJillian pursed her lips. ``It's been a while since she's been back. Let's go with a #20 and work up.''\n\nSam nodded and pressed a button on the robot's console. The arm unfolded itself, rotated around to attach itself to a medium-large, rigid dildo about six inches in diameter and four feet long, and then swung forward shockingly fast, hurtling towards Evie's pussy. Lilia gasped, expecting it to impale her adoptive mother, but then breathed a sigh of relief when the tip of the dildo stopped an inch away.\n\n``Heh, heh,'' Sam chuckled. ``We're not monsters, after all. Commencing lubrication.''\n\nAs Lilia watched, a glistening substance began to ooze out of tiny pores all over the dildo, coating it with slick coating. A few seconds later, the arm began to move forward very slowly, pressing the bullet-shaped nose of the dildo up against Evie's pussy. The liger sighed contentedly, and the dildo slipped inside. Sensing very little resistance, the robot slipped the dildo forward fluidly. Evie gasped, her eyes rolling back in her head and her body arching against her restraints in ecstasy. The dildo pressed against the back wall of her uterus, and the robot immediately slowed down to a crawl on sensing resistance. But no sooner had it done that than it began to speed up again as Evie's flexible womb easily stretched to let it in further. The dildo had all but disappeared inside of her when the robot stopped its advance and chimed a tone indicating it had gone as far as its programming would let it.\n\n``How's it feel?'' Sam asked.\n\n``Feels good,'' Evie breathed, beaming. ``I could go for a bigger one.''\n\n``Like a knife through butter, huh?'' Sam chuckled. ``All right. Now we'll do a #24.''\n\nHe pressed a button on the machine, and it gently pulled itself out, put the dildo back in its place, and reached for a considerably larger one, this one nearly six feet long and over a foot in diameter. As the dildo swung through the air into position, steam jetted out around #20 with a loud hiss as it went through its cleaning cycle.\n\n``You guys have made some improvements since the last time I was here,'' Evie remarked. ``I bet you're glad you don't have to clean those by hand anymore.''\n\nSam made a face. ``You know it!'' he said. ``If I never have to clean another one of those by hand, I'll be a happy guy. Fortunately,'' he grinned, jerking his thumb towards Toby and Laura, ``I can delegate that now.''\n\n``That reminds me,'' Evie said, ``It sounds like congratulations are in order, Jillian?''\n\nThe now-head researcher bowed humbly. ``It was a great honor, to be sure,'' she replied, smiling.\n\nAt that moment, the dildo pressed against Evie's pussy, effectively halting any further conversation as the machine went through its motions. Once more, it slowly and carefully started the dildo into Evie, but as soon as the tip was inside, it pushed forward quickly until it reached her uterine wall, slowed, and then began to stretch her.\n\n``Ooh,'' Evie gasped, her mouth opening wide and her eyes half-closing. ``It's been too long since I had something that big inside me.''\n\n``Any pain?'' Sam asked.\n\n``Nope.''\n\nThe machine completed its routine, and they swapped out #24 for an even larger dildo. As this was going on, Lilia was finding herself getting turned on watching the machine work Evie over. While the whole thing was terribly clinical and dispassionate, the noises Evie made and the way her body reacted made Lilia curious whether it really did feel that good. So, as the machine was positioning #30 - an 8-foot long, 20''-diameter dildo - she raised her hand.\n\n``Yes, Lilia?'' Laura asked. ``You don't have to raise your hand,'' she chuckled. ``You can speak freely.''\n\n``Um, Miss Laura,'' Lilia said hesitantly. ``I-I think it might be fun to try that.'' She gestured to the machine.\n\nLilia couldn't see it, but Jillian and Sam subtly high-fived each other on hearing her words.\n\n``I'm sure we can do that,'' Laura replied, smiling. ``Let's let this round finish with Dr. Evie since it's already started, and as soon as it's done, we'll give you a little test.''\n\nAs if on cue, the machine beeped and withdrew from Evie's pussy, eliciting a horny groan from the liger.\n\n``Doing okay?'' Jillian asked.\n\nEvie nodded and rolled her eyes emphatically.\n\nThe lead researcher chuckled and began undoing Evie's restraints.\n\n``While we could test bigger - Sam's been putting the finishing touches on #40 - we've established that you haven't tightened up any since the last time we saw you. Time permitting, we'll want to do additional tests, of course (you can never have enough tests!), but at least we've achieved parity.''\n\nEvie nodded and let out an aroused groan as she swung off the exam table and helped Lilia take her place.\n\n``Just relax,'' she said, smiling and kissing the girl's forehead as the researchers readjusted the stirrups and straps for a much smaller body. ``They'll start out small and slowly work up. If you feel like you need to cum, go ahead and do it, okay?''\n\n``That's right,'' Sam interjected emphatically, ``If you try to hold back, you'll tense up. So, if you feel like you're gonna orgasm, just let it happen, okay?''\n\nLilia nodded hesitantly. Looking up at the adults all around her, she couldn't help feeling a little nervous - but also a little thrilled - as she felt the Velcro tighten around her ankles and wrists and the surcingles go over her torso. What was interesting, though, was that from her position here, she really couldn't see the robotic arm the way she'd been able to from the other exam table. Although it made quiet whirring and whooshing noises, she really had little awareness of its presence.\n\n``All right, kiddo. Let's see what we've got to work with,'' Jillian said, stepping into view between Lilia's legs. ``There'll be a little bit of prodding; we're just trying to decide which size to start with.''\n\nLilia felt her pussy being lightly spread open and something inserted inside and expanded. She gasped on feeling herself opened up like that and actually felt disappointed as the device was removed.\n\n``Let's start with three centimeters by ten,'' Sam said. ``#3.''\n\nThe machine came to life, and as Evie watched it, she stroked Lilia's forehead soothingly. ``Here it comes, kiddo,'' she said. ``Just relax.''\n\nLilia felt something press against her vagina. It was slightly uncomfortable, but before she even managed to grimace, her labia parted and the dildo slipped inside. She sighed faintly, any nervousness she'd felt before suddenly replaced by contentedness and a hint of lust.\n\nThe machine beeped and slid out, and Lilia couldn't help but feel a sense of loss. The dildo hadn't even made it to the back of her uterus, but the lost sense of fullness made her feel a little sad.\n\n``Let's go to a #6. That one seemed awfully easy.''\n\nA larger dildo appeared beneath her, pressed, and slipped inside. Lilia gasped and felt her body move just like Evie's had, writhing around the intruder.\n\n``Oh,'' she whimpered, her three-toed feet curling in ecstasy and desire, ``Make it go deeper?''\n\nThe adults chuckled, but Sam looked apologetic. ``Afraid I can't,'' he said. ``That would mess up the test. I can, though, bump you up to a bigger dildo. Let's give a #10 a try.''\n\n``Number 10?'' Evie asked anxiously. ``Are you sure she's ready?''\n\n``Only one way to find out,'' Sam replied, a glint in his eyes. ``She's just as greedy as you were! But, don't worry; you know the machine won't let harm come to her.''\n\nEvie nodded, reassured, and squeezed Lilia's hand affectionately. The machine positioned the next dildo and started it forward. Lilia's eyes bulged as she felt what seemed like a fist pressing against her. She let out a whimper of protest, but just then, the dildo slipped inside. Protest turned to near-orgasm as the dildo - which truly was as big as a fist - slipped inside of her, stretching her pussy and spreading her wide. She'd only ever felt that kind of girth when Evie knotted her, which hadn't happened in quite a while. She squirmed and writhed, her breathing accelerating and her heart pounding.\n\n``Are you doing o - ``\n\nLaura's words were cut off by a sharp groan as Lilia orgasmed hard, her tiny body convulsing against the restraints and her pussy squeezing the dildo for all it was worth.\n\n``Oh, wow,'' Sam said, watching one of the monitors. ``She's got incredible strength! Her VCF is off the chart!''\n\nEvie, as curious as she always was, moved over next to Sam to look at the monitor. Seeing it, she whistled. Lilia's vaginal contraction force - VCF for short - was at least double that of her own!\n\n``You know,'' Toby murmured, ``I wonder if she'd be a good candidate for...you know...''\n\nLauren's face lit up. ``Yeah! What do you think, Jillian? Test 5-13?''\n\nNow all the researchers brightened.\n\n``If she's up for it, we can broach the subject later,'' Jillian said firmly. ``We've got to maintain discipline and follow through on this test first.''\n\nThat cooled the enthusiasm a bit, but Evie could feel it still bubbling just beneath the surface. ``Which is 5-13?'' she asked as she returned to Lilia, whose fur was damp with sweat and whose face looked ecstatic.\n\n``It's a dynamic rigidity test,'' Toby replied. ``It tests the ability to - ``\n\n``We'd pair her with a bullmastiff,'' Laura interrupted simply. ``A male bullmastiff, and let him do what intact males do best.''\n\nEvie's jaw dropped. She closed it and gave the researchers a quizzical look.\n\n``We've had a number of patients develop your stretchiness,'' Sam explained as he maneuvered the next dildo into position, ``And we were curious whether the stretching effects would prevent knotting species from achieving copulation. We've tested it a few times, but none of the candidates had particularly high VCF scores. Lilia here, though, might make for a very interesting case study.''\n\nAbout that time, Lilia groaned loudly as a 10''-wide, 20''-long dildo pressed into her. It stretched her even wider than Evie's knot and had her babbling incoherently as it pressed up against her womb. The machine slowed, but just as Evie's womb had stretched easily under pressure, so did Lilia's. She sighed and looked down at the outline of the dildo that had appeared on her belly. As she watched, it started moving towards her chest. Part of her was impressed, but most of her was too aroused to think coherently. The dildo pressed still further inside her, gently coaxing her womb to open up for it, but at last, her walls would yield no more. She felt a hint of discomfort as the dildo tried its luck, but then the robot beeped to indicate that it had identified the limit.\n\n``She'd certainly be able to take him,'' Toby murmured.\n\n``5-13 is kind of Toby's pet project,'' Laura said.\n\n``Heh, `pet','' Evie chuckled, eliciting an eye-roll.\n\n``We can consider that later,'' Jillian said. ``Right now, we need to complete the essentials. Laura, you'd identified stomatic areolae. Let's go ahead and investigate that while we're here.''\n\n``They're just going to try inserting things into your nipples with a little more scientific rigor,'' Evie reassured Lilia. \n\nSam pressed a few buttons on the robot, and it reconfigured itself to thrust downward rather than forward. Selecting a small dildo about the size of a large finger, he initiated the test. Now able to see exactly what the robot was doing up close, Lilia watched with some fascination as it extended its finger-dildo down towards her, made light, tantalizing contact with her nipple, and then pressed more firmly. To Lilia's surprise, she felt her nipple give way, and the probe continued down into her almost effortlessly.\n\n``How does it feel?'' Laura asked.\n\nLilia pursed her lips. ``It's hard to describe,'' she said. ``Kind of pleasant, but not like feeling it...you know, down there.''\n\n``Any pain? Difficulty breathing?''\n\nLilia shook her head, and then realized that it was strange that she didn't have trouble breathing when the probe should have been all the way through her left lung by then. She decided not to think about it and instead focused on the slightly titillating sensations she felt as the probe reached its limit.\n\n``Weird,'' Laura said as the probe retracted. ``It's like it's getting deflected in there or something. That should have gone through your back, yet it didn't. It didn't affect your breathing, and we saw no tension on the probe's force sensors to indicate that it was being twisted out of alignment.''\n\nLilia shrugged, and Evie chuckled. ``Seems like that one's still a mystery from when I was still here,'' she said.\n\n``Yeah, we have no idea how it works,'' Toby confessed.\n\n``But, we can still study it!'' Sam piped up as he brought the next probe to bear. \n\nThis one was twice as long - longer than Lilia was deep - and about two inches in diameter.\n\n``If anything starts to hurt, you just tell us,'' Laura said.\n\nBut as the machine whirred to life and began to drive the probe into Lilia's right nipple, she felt nothing but a mild sense of pleasure. And, once again, the machine bottomed out.\n\n``We need a version with a camera,'' Toby piped up.\n\nJillian brightened. ``Yes! That's exactly what we need. Sam, do you think you can rig one up?''\n\n``Uh, not today, but give me a week?''\n\n``Excellent. We'll get to the bottom of this one way or another!'' She paused, pursing her lips. ``For now, let's move on to inflation.''\n\nLilia's eyes widened. ``Inflation?'' she asked nervously. \n\n``You, ah, don't have to if you don't want to,'' Laura reminded her.\n\nLilia shook her head. ``No, I-I might want to; I just don't know what you mean.''\n\n``Hop down and I'll show you,'' Evie said with a wink.\n\nThe researchers released Lilia's restraints, and Evie helped her down. A little wobbly from getting off more than once, she took a moment to get her feet under her, but then she went and sat on the other exam table to watch her mother. Laura flattened out the exam table, and Evie took up a wide stance on all fours, her ass thrust into the air, her front resting on her forearms, and her tail curled up and out of the way. Sam punched 000 into the machine, and it took up an inflation dildo, which looked much like the others but with a hollow channel through which to pump liquid and some unique features to let it seal itself inside the test subject.\n\n``Ready?'' he asked.\n\nEvie nodded over her shoulder, and the machine maneuvered the large dildo into place.\n\n``Beginning positioning,'' Sam said.\n\nThe dildo slipped inside Evie, and parts of the front and back inflated slightly, creating a dumbbell shape. Evie's eyes half-closed in pleasure on feeling the stimulation as the partially-inflated dildo moved forwards and backwards, seeking out the ideal position. After a few seconds, it beeped.\n\n``Positioning complete. Commencing sealing sequence.''\n\nThe front and back of the dildo began to inflate in earnest, making Lilia gasp at seeing such a large thing protruding from her mother. Evie sighed and winced slightly as the inside swelled large enough to prevent itself from being pushed out. Already its size was enough to make her belly pooch downward to accommodate it.\n\nThe machine beeped again, and Sam said, ``Seal complete. Ready to inflate?''\n\nJillian nodded, and he pressed another button. To the observers, nothing seemed to be happening other than a look of bliss coming over Evie's face. But to the liger, something was indeed happening: a stream of warm fluid was flowing out of the tip of the dildo. It hit her uterine wall and sloshed down against her abdomen. Already the fluid was beginning to make her womb swell, albeit subtly, yet the warm feeling inside her was so soothing and arousing at the same time that she hardly noticed the gentle outward push on her womb.\n\n``One hundred liters. Still going,'' Sam observed.\n\nLilia did a double-take. ``100 liters?'' she asked, incredulous. ``But she doesn't even look any different.''\n\n``She tends to swell upward and downward first, and then she begins to swell outward, or at least she used to,'' Jillian replied. ``If that's still the case, that would explain why she doesn't look any different, yet. Around 200L, she should start to show.''\n\nAnd sure enough, Evie's stomach began to pooch outward not long after that, as if she were entering the second trimester of pregnancy.\n\n``Two hundred liters.''\n\nAs for Evie, she was breathing softly, taking in slow, shallow breaths and letting them out so as not to press on her already-full belly. It wasn't painful, per se, so much as uncomfortable, a sensation not unlike having eaten too much. By 300 liters, she had a very round belly, yet she knew she wasn't even halfway to her maximum capacity, yet. At 600 liters, her ``baby bump'' had swollen to stretch her entire front from her breasts down. At 800 liters, she groaned as her back hunched to follow the curvature of her abdomen, giving her a nearly spherical look.\n\nFinally, at 925 liters, the machine signaled that max pressure had been reached. Lilia had initially thought that her mother being blueberry-shaped was kind of funny, but now she went over and took Evie's hand.\n\n``Are you okay, Mom?'' she asked.\n\nEvie grimaced slightly but nodded. ``Full,'' she said with a rueful grin. ``Very full.''\n\n``Let's go ahead and drain,'' Jillian said. \n\nSam nodded and pressed a button on the machine. Though it had taken a long time to fill her, Evie drained fast enough that the others could watch her belly shrinking. A couple of minutes later, she sighed wistfully as the seal deflated and the dildo left her.\n\n``How do you feel?'' Lilia asked.\n\n``Kind of...empty,'' Evie replied. ``It always feels good to get the pressure off, but losing all of it at once almost makes you feel like something's missing.''\n\n``What do you think, Lilia?'' Laura asked. ``Would you like to give it a try?''\n\nLilia pursed her lips but then nodded. Evie took a couple of minutes to catch her breath, and then got down and helped Lilia up and into position.\n\n``Now, just hold your tail out of the way, and they'll take it from there,'' Evie instructed.\n\nSam selected a smaller inflation dildo for Lilia, and it slid inside. At first, it didn't seem like much, but once it swelled to lock in place, Lilia gasped in surprise and moaned in pleasure.\n\n``Starting inflation. Max pressure 25 cmH2O.''\n\nLilia gasped on feeling the fluid start. It made her feel calm and relaxed even as it began to press on her tiny womb. A few moments felt erotic, like when the fluid made the seal shift against her g-spot, but it was, for the most part, just relaxing. As her body filled, she found herself shifting to get comfortable, but the discomfort she felt wasn't terrible. By the time the machine registered that she'd reached peak pressure, she was nearly asleep.\n\n``Smile for the camera, Lilia,'' Evie teased, holding up her phone.\n\nHalf-asleep, Lilia flashed a peace-sign, and Evie showed her the picture of herself. The hybrid gasped. She was as round as Evie had been!\n\n``That'll teach you to laugh at me,'' Evie grinned, winking.\n\nSam started the deflation sequence, and moments later, Lilia experienced the same sensation of emptiness and loss that Evie had described.\n\n``Don't worry,'' Toby teased, ``There's plenty else to fill you up!''\n\nLaura just rolled her eyes.\n\n``What?'' Toby asked. ``We've completed the essentials, and my project has been on hold for months looking for the right candidate!'' He looked earnestly at Lilia. ``Please?'' he almost begged.\n\nLooking at the goat's plaintive expression, Lilia couldn't help but chuckle a little. ``Well...okay,'' she said hesitantly. ``What do I have to do?''\n\n``In the meantime,'' Jillian said to Evie, ``I've arranged to have you try to heal someone else.''\n\nEvie nodded slowly. ``I can help with that, but I'd like to keep an eye on Lilia during this interspecies trial.''\n\n``Of course,'' Jillian said, nodding.\n\nThey followed Toby out and down the hall to another lab. The room was separated into two areas: a testing area with a floor covered in tumbling mats, and an observation room.\n\n``Now, ideally, you'd go in on all fours and let Max have his way with you,'' Toby said. ``We'd be testing to see if you can relax enough to let Max in but then tighten up to keep him from getting out. But, Max is a dog, not a piece of precision mechanical equipment, so there are some risks. He might scratch or bite you in the heat of the moment, might miss - which might hurt - or might try to pull out hard if he gets unnerved. So, for safety reasons - ``\n\n``I'll do it,'' Lilia said.\n\n``But I haven't established the safety procedures, yet,'' Toby protested.\n\nLilia shook her head. ``You said, `ideally'. I don't want to mess up your test.''\n\nToby glanced at Laura, who smiled and shook her head, and then at Jillian, who pursed her lips and looked at Evie.\n\n``You're the medical doctor around here and the one to heal her if she gets hurt,'' said the lead researcher. ``What do you think?''\n\nEvie bit her lip. ``She's taken bigger than any dog's knot - heck, I'm bigger than that dog's knot is, and she's taken me, so worse comes to worst, she just relaxes and lets him out.''\n\n``But if she panics, she might not be able to relax,'' Toby interjected.\n\n``We'll all be on standby in case something goes wrong,'' Sam said. ``I can get Max to settle down, Evie can calm Lilia, and you or Laura can administer a sedative to both of them to get them to relax long enough for us to separate them.''\n\nToby pursed his lips, thought about it, and then nodded. ``Okay,'' he said, convinced, ``But just beware: Max is a, um, big guy.''\n\nHe let Lilia into the room via the hallway door, closed that door, and passed through a door on the back wall, closing it behind him. Meanwhile, the others stepped into the observation room. Lilia knelt on all fours, not exactly sure what she was supposed to do, but game to try. If anything, the previous test had left her terribly horny, and this seemed like a good way to burn off some steam.\n\nMoments later, the door opened briefly, and a huge mastiff nearly twice Lilia's size bounded in while Toby quickly got himself set up in the observation room to watch. \n\nLilia gasped, her eyes wide as the dog came in and sniffed her all over. She instinctively curled into a ball, covering her face and neck. The dog sniffed enthusiastically at her head, whined, and pawed at her a little bit, confused by the game, but then he caught the scent of her backside. Sniffing around curiously, he shoved his cold, wet nose up under her tail. Lilia gasped and squealed in delight as he began to snuffle and lick frantically at her.\n\n``Good, he's interested,'' Toby said over the intercom. ``Now, if you'll get into position like you were for the inflation test, he'll know what to do.''\n\nLilia hesitated, a little unnerved by the size of the dog, but catching a glimpse of his hefty-looking sheath and large, fuzzy balls, she licked her lips and hastened to get into position. No sooner had she spread her legs than Max leapt up onto her. She gasped as she felt his sharp penis slamming hard against her backside, missing her pussy and hitting her perineum, making her cry out in discomfort.\n\n``Thrust your ass up into the air, and he'll go inside,'' Toby called.\n\nLilia winced, and fighting her instincts that told her to sink downward, she thrust her ass up towards her canine suitor. His very next thrust hit home, and his legs wrapped tightly around her waist, driving him into her.\n\nIf the tests had been clinical and rehearsed, this was uncontrolled chaos. Lilia came almost immediately on feeling the dog's boner roughly grazing her g-spot with each passionate thrust, and yet the best was yet to come. His knot began to swell, and with each thrust, he stretched her a little more.\n\n``He's getting bigger. Get ready to clamp down on him as soon as you can,'' Toby instructed.\n\nLilia nodded as best she could through her sex-fueled haze. Max continued humping her, his knot growing from nonexistent to the size of a golf ball, then a baseball, then a softball.\n\n``Now, Lilia!''\n\nShe gritted her teeth and clamped down. Max let out a surprised yelp but then began panting ecstatically, the feeling of Lilia's tight pussy around him sending him from spurting pre to spurting doggy jizz.\n\n``You're doing great!'' Toby called. ``He might try to swing his legs over and stand butt-to-butt with you. If he does, just try to hold him in with your vaginal muscles. If you can't, that's okay. We just want to see whether it can be done or not.''\n\nPrivately, he said to the others that this was the part where the other candidates had lost control. Knotting was easy enough, but when Max had started applying real force, they hadn't been able to keep up with him.\n\nBut Max seemed quite content for the moment to rest his weight on Lilia's back and pant hot breath in her ear. For her part, having that large knot pressed against her g-spot and feeling the spurts of hot liquid into her made her orgasm a couple of times at least before Max did exactly as Toby had said he would.\n\nWithout much warning, he clambered off of her, hiked one of his legs, and then rotated around, putting substantial strain on his knot that was lodged deep inside Lilia. The girl let out a determined grunt, gritted her teeth, and clamped down for all she was worth. Max whined in delight, and Lilia was rewarded for her efforts by another hot, thick spurt of cum into her womb.\n\n``Well,'' Toby said to the others, ``That went perfectly according to plan. This proves definitively that some do have the ability to control how flexible they are.''\n\n``I wonder if she can be flexible again,'' Laura said thoughtfully, ``Or if she's stuck being tight now that she's done it.''\n\n``Only one way to find out,'' Toby said. ``Lilia, would you let go of Max now, please?''\n\nLilia whined. ``But he feels good!'' she protested.\n\n``I know, but you two can play some more later,'' Toby promised.\n\nLilia huffed but nodded, and a second later, Max pulled out effortlessly and went off to go lick his still-hard dick until his erection subsided.\n\n``Well?'' Toby said to Laura, giving her a smug look.\n\nLaura rolled her eyes. ``Fine, fine, you win,'' she said.\n\n``And that is a week of not having to fill out summary reports,'' the research assistant gloated.\n\n``For now,'' Laura replied, smirking. ``Next time, I'll bet you double.''\n\nThe two made a few idle, good-natured threats at each other until Lilia got to her feet. It took her a bit because as soon as Max had taken care of himself, he'd buried his tongue under her tail, lapping at his own fluids and hers, and she'd given in to lust as his tongue probed deep and exciting parts of her anatomy, somehow able to lick both her clit and her g-spot at the same time. The researchers had left her to have her fun while they talked over the next tests with Evie.\n\n``Mrs. Saunders is the one I've lined up for you to take,'' Jillian said. ``Bovine, 53 years of age. She's suffering from acute grief stemming from a car crash that paralyzed her from the waist down and killed her parents, husband, and three children. She was committed to a psychiatric hospital after attempting to kill herself. One of her psychiatrists is familiar with our work and wondered whether you could heal her body and her mind.''\n\nEvie started to protest, but Jillian went on.\n\n``I've warned them that there is a risk she will be terminated,'' she said, ``Or that we will attempt the treatment and be able to cure body or mind but not both. I know it's a lot to ask, Evie, but this could be a huge breakthrough.''\n\nEvie nodded slowly. ``I understand,'' she said. ``But, healing sometimes takes days - even weeks!''\n\n``We're prepared to put you up here if you need to take time off,'' Jillian said. ``I just figured you couldn't possibly turn this one down.''\n\n``Well, when you put it like that!'' Evie chuckled, shaking her head. ``All right.''\n\nThey went down the hall to another lab, where Evie was shocked to see that the cow in a wheelchair and her psychiatrist were already waiting.\n\n``My gosh,'' she said as an aside to Jillian, ``How long have they been waiting?''\n\n``Not very long at all,'' the psychiatrist replied, overhearing them and standing. ``You must be. Dr. Evie,'' he said, extending his hand. ``I've heard great things about you. I'm Dr. Evans. I know your time is valuable, so I won't waste it. My patient is suffering, and I hope you can help.''\n\n``We'll do everything we can for her,'' Jillian replied, ``But I must remind you that there is potential that she will not survive. As you have been granted her power of attorney, the responsibility falls on you to accept that risk.''\n\n``Frankly, I think it's the second-kindest thing for her,'' the ferret replied, ``Short of rolling back time, that is.''\n\n``Or healing her broken heart,'' Evie interjected.\n\n``Can you do that?'' Dr. Evans asked.\n\n``We don't know,'' Jillian said quickly, ``But we are going to attempt it today.''\n\n``As a fellow medical professional, I took the Hippocratic oath just as you did,'' Evie said. ``I promise, I will do all that I can to help her, but I can't promise this will work.''\n\n``Best case, she comes out with a healthy mind and body and goes on to live out the rest of her days happily. Worst case, she gets her wish to be with her loved ones,'' Dr. Evans mused. ``Either way, it's a better outcome than she's got now.''\n\nEvie and the researchers nodded, and the ferret signed the release papers.\n\n``You've stopped her sedatives?'' Jillian asked.\n\nDr. Evans nodded. ``She should be coming to anytime now.''\n\nAs soon as she did, Dr. Evans explained the situation to her, the research team introduced themselves, Evie, and Lilia, and Jillian explained to her that she was going to have to pull herself into Evie's womb, that nobody would force her.\n\n``If it gets me closer to my dear Charles, Mother, Father, and my babies, I'd crawl across a field of broken glass,'' the cow replied gravely.\n\nWith that final confirmation, the researchers helped her strip out of her clothes and began the arduous task of putting the countless leads on her head and chest. She sat through it all with an air of dignity and perseverance that made Lilia hope she came out okay. At last, the sensor check was complete, every lead was verified functioning, and the time had come. Evie sat on the floor with her legs spread wide. \n\nThe cow looked at her quizzically. ``You expect me to fit in that?'' she asked.\n\n``Don't worry; she's very stretchy,'' Jillian said. ``Once you start in, you'll see what I mean.''\n\nMrs. Saunders nodded skeptically, and then, with the help of her psychiatrist, got out of her wheelchair and lay face-down on the floor. Propping herself up on her arms, she dragged herself forward, crawling right up to Evie's groin.\n\n``You're sure you want to do this?'' Evie asked.\n\nThe cow scoffed incredulously in response and pressed her face to Evie's groin. The liger sighed with arousal as the cow's head pressed inside. Spreading her legs, she gave Mrs. Saunders all the space she could to let her continue. Her arms came next, and since the cow was moving all her weight on her elbows, the force made Evie wince. With a few more lurches forward, the last of the cow's functional parts slipped inside, leaving only her paralyzed waist, hips, legs, and feet.\n\n``Doing okay, Evie?'' Jillian asked.\n\nEvie nodded, though she was sweating from exertion and panting from arousal.\n\n``You're not quite all the way in,'' Jillian called into Evie's cavernous womb. ``Still have half of you to go.''\n\nIt took several more minutes for the cow to pull the rest of herself in, but at last, her toes disappeared, and Evie, splayed out with a bulging belly, breathed a sigh of relief.\n\n``Monitors all look good,'' said Sam. ``Wait. What's that?'' he asked, pointing at one of the signals.\n\nJillian looked at the signal and paled. ``Evie,'' she said as calmly as she could, ``You need to push her back out.''\n\nLilia picked up on the hint of urgency in her voice. ``What's wrong?'' she asked.\n\n``Lilia, please, be quiet right now,'' Evie interjected. ``Something is wrong, and we can't have any interruptions.'' \n\nShe grunted and squeezed, but after a few seconds, she addressed Jillian. ``I cannot push her out,'' she said. ``She seems to be stuck.''\n\n``Should I go in after her?'' Toby asked.\n\n``The two of you won't fit, and the extra movement could cause Evie to orgasm,'' Jillian said, shaking her head. ``Evie, I'm sorry to ask this of you, but - ``\n\n``I cannot orgasm under stress like this,'' Evie replied, a tinge of alarm in her voice.\n\n``If you don't, she will die a traumatic death. She's suffering now,'' Jillian urged.\n\n``We've got to find a way to make her get off,'' Sam said. ``Uh, electrodes. Let's get the electrodes.''\n\nThe researchers, used to acting in carefully controlled experiments - indeed, the experiment with Max was by far the most exciting thing any of them had done in years - were not thinking straight under the pressure. Toby and Laura bumped into each other, Sam fumbled with the E-stim machine, and Jillian did her best to keep everyone calm. As all of this unfolded, Lilia watched in dismay and growing panic, yet there was a certain calm beneath the surface of it all that told her there was a way she could help.\n\nAs if drawn by a magnet, she turned and moved towards Evie, who was sweating profusely with worry and discomfort now.\n\n``I know what will help you get off,'' Lilia said.\n\nEvie looked at her, baffled for a moment, but as the cub reached out and grasped her penis, it dawned on Evie what Lilia was planning. Giving her a faint nod, she sat back and tried to relax.\n\nLilia grasped the barbed tip of her mother's two-foot-long penis. Making a cone shape out of her hand, she circled her mother's urethra a few times and then plunged down inside. Evie groaned loudly, gasping as her back arched lewdly. Encouraged, Lilia pulled her arm out and thrust it down into her mother's penis again. Evie's hips bucked roughly against Lilia, driving the cub's arm shoulder-deep into her. Lilia began to rotate her arm and tried to spread and close her fingers, stimulating her mother from the inside. The intensity of Evie's thrusts increased, and so did the duration.\n\n``All right, here we go,'' Sam said, having gotten the E-stim positioned and configured at last.\n\nLilia thrust one more time, reaching as deep into her mother as she could, and Sam fired the E-stim. Evie cried out as a painfully powerful orgasm overtook her, lifting Lilia off the ground.\n\nA blast of cum launched Lilia's arm out of her mother's penis, and gallons of hot, thick, white cum splattered on the ceiling high above. Another gush hit the wall on the far side and left a streak across the floor that painted the wheelchair but narrowly missed the onlookers. Gush after gush poured out of Evie's cock, and she moaned and cried all the while as she rode out one of the most powerful orgasms she'd ever had.\n\nAt last, the onslaught stopped, and Evie collapsed in the corner, exhausted and emotionally spent. Her womb had returned to normal size, and Mrs. Saunders was no more.\n\nNobody said anything for a long time.\n\n``Well,'' Sam said at last, ``Let's get this place cleaned up.''\n\n``We'll do a post-mortem immediately,'' Jillian said to Dr. Evans. ``The recorders captured everything.''\n\nThe ferret shook his head sadly. ``I just hope she didn't suffer. What was going on?''\n\n``Yeah!'' Lilia interjected.\n\n``The best I can describe it was anaphylactic shock,'' Sam said. ``We'll know more once we've investigated.''\n\n``And here's thanks to you for thinking on your feet,'' Laura praised Lilia. ``You kept it together while the rest of us were running around with our heads cut off!''\n\nLilia beamed, but her moment of glory was short-lived.\n\n``I just wish that nice cow had lived,'' she said.\n\nDr. Brunson, who had walked in after hearing the commotion, knelt next to her.\n\n``Science can be elusive,'' he said, patting her shoulder reassuringly. ``I remember a time earlier in my career, shortly after your mom left, in fact, when we had a promising snake boy come to us. He had been practicing a technique where he swallowed rodents whole, using his mouth much the way Dr. Evie uses her vagina. It was promising research because it would have let males heal as well as avoiding the risk of orgasm.\n\n``However, as promising as he was, we got in a hurry. He was able to swallow feral rodents with ease and return them healthy, even curing minor skin blemishes, but the transition to full-grown anthro rodents proved to be too much for him. To this day, I don't know if it was the size, the fact that it was another anthro, or what, but that boy orgasmed so hard that there was a pool of cum stretching wall-to-wall. The test subject disappeared, and DNA analysis later revealed that it was indeed the test subject our custodian had to mop up.\n\n``But, as disappointing as the outcome was, we learned from it, improved our processes, and haven't had an incident like that again. We can't know everything all at once. Science is a flirtatious mistress, showing a little leg there, a bit of a shoulder there, always egging us on. But when we try to leap at her, she smacks our hands. That doesn't mean we shouldn't pursue her; we just have to remember our manners, and someday, she'll eventually open herself up to us.''\n\nFor a moment, nobody said anything.\n\n``Science is a hussy. Great,'' Laura said at last, tossing a stack of papers in her hand up in the air and shaking her head, eliciting a chuckle from the others.\n\n``At least,'' Sam interjected over the nervous laughter, ``It looks like she died happy.''\n\nThe others huddled around his monitor, and Sam replayed the ordeal from Mrs. Saunders's perspective.\n\n``There's where the attack started,'' he said, pointing. ``You can tell she's agitated, not just worried but panicking. Then here,'' he said, pointing to another part of the wave, ``She abruptly becomes preternaturally calm.''\n\n``Did she die?'' Lilia asked.\n\nSam shook his head. ``No, her brain waves are still active. She's not even in a coma, yet. She's just...very calm. This was about the time you started trying to get your mom to orgasm, Lilia. It might be thanks to you that Mrs. Saunders stopped suffering. Here's the jolt of the E-stim - you can see all sensors picking up on it - and then things start to happen very fast.'' His face lit up. ``We've substantially upgraded our equipment since the last time we ran this experiment, and we get a lot better resolution and nuance than we had before. See these scattered waves here, all these gamma waves? This is most likely her life flashing before her eyes. But this - this - is beautiful. See how these waves over here coalesced and evened out? Then these waves over here - those alpha waves slow to become theta waves. She's utterly at peace. I could be wrong, but I think the last image she saw was her husband, her kids, or her parents, and told them she was coming to see them. After that, you see those waves slow and then eventually stop. She's gone.''\n\nIt took time for all of that to sink in, but if nothing else, it had the effect of letting everybody relax a little bit.\n\n``A fine hypothesis,'' said Dr. Brunson, ``But we'll have to test it!''\n\nHe might have ceded control to Jillian, but on matters of research, he was still unquestionably the boss. With their hands full tracking down the root cause and understanding the data they'd collected, Jillian told Evie that that was all the tests they could perform that day. She thanked Evie for coming in and said she hoped the liger and her adopted daughter would come back again soon.\n\nEvie and Lilia looked at each other, smiled, and Evie said, ``I think we could manage that.''\n\n``The science must get done!'' Lilia proclaimed.\n\n", "writing_bbcode_parsed": "The Checkup

(c) 2021 Jack Doe. All characters belong to their creator. Do not distribute without all copyright notices and disclaimers intact.

Writing this story does not constitute endorsement of the events depicted herein by the author. Readers are explicitly discouraged from engaging in any activities that are illegal or harmful to themselves or others.

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Lilia looked at the imposing building and swallowed hard. Nervously, the fox-rabbit-otter mix looked up to her adoptive liger mother for reassurance.

``This is where you used to live?'' she asked hesitantly.

Evie laughed. ``Yep, until I was 18,'' she said, sighing wistfully. ``It always feels like a bit of a homecoming for me. The researchers and I might not have been `family' in the normal sense, but they cared for me like a parent cares for a child - like I care for you.''

The nine-foot tall hermaphrodite knelt down to ruffle Lilia's blonde hair between her long, erect ears and smiled reassuringly.

``I can see how it would look scary to someone who wasn't used to it,'' she said thoughtfully, standing back up, ``But inside, it's home.''

She extended her hand, and her three-foot-tall daughter reached up to take it, feeling a little reassured but still reluctant to go into the big, gray research facility.

``Evie! You're back!'' a voice called as soon as they got inside.

Despite her size, the liger was nearly bowled over backwards as Sam, one of the researchers, came up and gave her a bear hug. Though probably around 20 years her senior, the researcher had a strange vivacity about him that dated back as far as Evie could remember. Evie chalked it up to passion for his work.

Sam stepped back, and Jillian, another researcher who had watched Evie grow up, stepped up to embrace her warmly.

``It's good to see you again,'' she said. Looking down at Lilia, she smiled and knelt. ``Well, hello. You must be Lilia. Evie's told us a lot about you.'' Glancing at Lilia's arms - which matched Evie's light- and dark-purple striped pattern - she grinned. ``So, it is true,'' she murmured, reaching down subconsciously to feel of the hair where it changed colors from purple to tawny. ``Amazing.''

Lilia bit her lip and looked up shyly, but then brightened and ventured a smile.

Jillian pulled herself away from her daydreaming. ``We've got to run some tests on your mother to make sure everything is okay with her,'' she explained. ``You're welcome to watch, if you like?''

Lilia looked from the researcher to her mom and back, then nodded.

``Splendid.'' She rose and addressed Evie. ``We'll be in lab #1,'' she said. ``I'm going to grab some assistants and will be in shortly.'' She started to leave, then hesitated. ``If it's all right with the two of you,'' she added, ``We'd like to run some tests on Lilia, too. She's the first instance we've had where you've healed someone and then come out to be able to talk about it.'' She grinned sheepishly. ``I'd be lying if I said we weren't going crazy wanting to study the results.''

Lilia looked up at Evie uncertainly. Evie petted her head reassuringly. ``Let's see how you feel after watching some of the tests on me,'' she said, then addressed Jillian. ``I don't want any trauma for her. Poor kid's had trauma enough for several lifetimes.''

Jillian nodded, then smiled at Lilia. ``I promise we'll be gentle,'' she said reassuringly. ``You'll have the opportunity to see how your mom does, and if it looks like something you'd be willing to try, we can proceed.''

Lilia hesitated, then nodded understanding.

``All right. I'm going to go find those research assistants. If you'll get settled into lab #1, we'll be in shortly.''

Evie nodded, the researchers left, and she turned and led Lilia to the lab wing. Exiting the wide-open entry foyer via a doorway on the left, they began to pass the labs, each of them with various experiments going on. Machinery whirred softly, and occasional gasps and groans from the study participants greeted their ears as they walked along.

Their progress was fairly slow, delayed by Lilia's frequent stopping to gawk at the experiments. In one, a mouse about Lilia's size had been blown up to be almost spherical, and as Lilia stared, wide-eyed, the mouse groaned, her eyes rolled back in her head, and she climaxed, blowing thick, white liquid all over the room amid yelps of surprise from the researchers.

In another room, a young stallion about Lilia's age was strapped into some kind of metal rigging. He seemed to be struggling; his hands were balled up into fists, and the metal supports were shaking as some kind of milking device pumped vigorously at his penis. Thick, white fluid gushed into a clear, six-foot-wide tank beside him, agitating the frothy fluid and making its level rise quickly. Only then did Lilia realize that he wasn't struggling to fight the machine; he was climaxing over and over again.

A third room made Lilia's jaw drop on seeing a puma a little bigger than she was restrained on all fours as a piston drove a dildo six inches in diameter and over three feet long into her. She seemed to really be enjoying herself.

``Come on, Lilia,'' Evie said, tugging her hand. ``There'll be plenty to watch when they start my experiments.''

Lilia reluctantly pulled her eyes away and followed her mother down the hallway to a large room at the end plainly marked ``LAB 1''. Through the glass pane in the door, Lilia could see a white room with all kinds of equipment, and as her mother opened the door and they stepped in, the young mixed-breed gasped.

In the middle of the room was an oversized exam table. A robotic arm nearly as tall as Evie stood folded up offset from one wall, and a wide array of dildos ranging from the size of a finger to bigger than Lilia stood arrayed in a semicircle behind it. A tank much like the one she'd seen in the room with the colt stood empty, its inside polished crystal clear between uses. It was so big that two of Lilia could have laid down in it toe-to-ears and not touched both sides. An entire wall was jam-packed with racks of monitoring equipment. Wires hung everywhere, and countless monitors displayed a variety of colored lines and indicators. A ventilator and defibrillation cart stood close to the exam table, and the ceiling was covered with an array of positionable lights.

Yet despite all these amenities that made the room resemble an alien anal-probing laboratory and unnerved Lilia, the thing that caught her mother's attention was a line of coat hangers attached to the wall beside the door. Most of them held neatly-hung lab coats, but a few of them were spares. As the liger stripped off her shirt and bra, she smiled.

``As a kid, I always wondered what these hangers were for,'' she said to Lilia. ``Every lab had them, yet there were never enough lab coats to fill them all up. I guess now I know,'' she chuckled sheepishly, hanging up her clothes.

Seeing Evie naked wasn't unusual for Lilia. It was literally spending time in Evie's womb a year ago that had restored her forearms and given her sight in her eye after a terrible encounter with some rats that had eaten parts of her alive - and would have finished her off if given the chance. But, the healing properties of Evie's vaginal fluids had done more than just repair her broken body. They'd given Lilia much of her mother's stretchiness, and they'd also substantially increased her libido, a side-effect of the experimental drugs given to Evie that the liger had wrestled with most of her life. Though they called themselves mother and daughter, there was no blood connection between them, and they decided that given the circumstances, taking advantage of each other's raging hormones to satisfy their own would be in both their best interests. As a result, they had intense, mutually satisfying sex frequently, and it was for this reason that Lilia thought nothing of it as her mother disrobed.

``Do my eyes deceive me?''

They turned to the door, where an aged otter had stepped in and was peering curiously at Evie.

``Dr. Brunson!'' the liger cried, and despite her nudity, reached over and scooped the otter up in a big hug.

``Evie, it is you!'' the old researcher beamed once she'd put him down. He gave her a mock-disapproving glance. ``You're rather late for your annual check-up, young lady,'' he said, tapping his watch.

Evie rolled her eyes and chuckled. ``I know,'' she confessed. ``I've been held up at work, and playing parent'' - she gestured to Lilia - ``has been rather more challenging than I thought.''

The otter looked down at Lilia and cocked his head inquisitively. ``Aren't you an adorable girl?'' he asked. ``This is the one you healed; the markings on her arms and her eye are hard to miss,'' he said over his shoulder. Addressing Lilia, his wizened face lit up as he asked, ``What was it like? What did you feel?''

Lilia opened her mouth to speak but couldn't seem to form words. The old researcher's enthusiasm was like a warm glow, and it felt more natural to bask in it than to spoil it by speaking.

``She's not a mute, is she?'' he asked, glancing up at Evie.

The liger shook her head. ``No, she's just shy and a tad overwhelmed,'' she laughed. ``I hadn't realized it, but as we were walking down the lab wing, it occurred to me that for someone who didn't grow up here, this place is a lot to take in.''

The otter nodded thoughtfully. ``Would love to run some tests,'' he hinted. ``How old are you, Lilia?'' he asked.

``I'm twelve,'' Lilia replied, breathing a sigh of relief at finally being able to form words.

Dr. Brunson nodded. ``A perfect age. As you might recall, Evie, that was when we began testing you.''

``All too well,'' Evie chuckled.

``I promise it won't hurt,'' Dr. Brunson said. ``It should feel very good.''

``Jillian already ran the idea past us,'' Evie said. ``They're going to let her watch as they run my tests and see how she feels about it afterwards.''

The otter nodded. ``Quite right, quite right. That Jillian has done marvelous things with the place since I handed the reins over to her last year,'' he said. ``She always was a bright assistant, but now that she's got the power to steer in her hands, she's really impressed me.''

``Handed her the reins? Surely you're not retired?'' Evie asked in surprise.

``Oh, no, of course not. I'll retire when I curl up in your womb and go to sleep forever,'' the otter replied with a glint in his eyes. ``What was that sheep's name?''

``Mr. Wilkerson,'' Evie replied uneasily.

``Ah, yes. His words stuck with me after that experiment, you know. The more I've thought about it, the more I like the idea.''

``Well, maybe I don't like the idea of killing my mentor and father-figure,'' Evie chuckled. ``Especially without you there to throw the switch that makes me do it!''

``I mean, we could arrange that,'' Dr. Brunson said, the telltale far-off look coming over his face that appeared when he was devising a new test. ``Run some wires out of you, and once I'm nicely settled in, I could press the button to send a nice jolt through your groin and vanish. What a climax to my life's work - you'll pardon the expression, of course - to finally experience firsthand the thing that I've only ever been able to study through others?''

Evie shriveled up her nose. ``I dunno how keen I am on having wires run out of my pussy, Dr. Brunson,'' she teased.

``Ah, well, there's always wireless. Did you know the body is nearly transparent in the 400 MHz band?''

Evie rolled her eyes. ``Yes, Dr. Brunson,'' she said, shaking her head and grinning. ``You've only told me a hundred times.''

Lilia watched their interaction at first with reticence, but the familiar, jovial relationship her mother shared with the old researcher seemed to put her at ease. Evie had mentioned discomfort during some of the tests, and Lilia had assumed she was downplaying it or sugar-coating it, but as relaxed as she was, it really seemed that she bore no ill will towards the otter who had run too many experiments on her to count. To Lilia, that silent communication told her more about the way the researchers treated Evie than anything the liger had ever actually said about her childhood.

``But we're losing precious time,'' Dr. Brunson was saying as he patted the exam table. ``Come on, kiddo. Up you go.''

``He means me,'' Evie laughed as Lilia stiffened, eliciting a chuckle from everybody.

Just then, Jillian walked in, accompanied by Sam and a couple of research assistants probably in their late teens or early twenties that Evie didn't recognize.

``Evie, this is Laura, and this is Toby. They'll be assisting with the exams today. Laura, Toby, this is Evie, the most successful candidate to pass through our program.''

``It's really an honor!'' Toby gushed, stepping forward to shake Evie's hand. ``You're a legend around here.''

``Hard for you not to be when studying every one of your experiments is compulsory learning,'' Laura said wryly.

``No time to beat around the bush,'' Jillian said. ``We can exchange pleasantries as we get started. Let's start with a physical, and then we'll insertion tests 1, 2A, 3, and 4.''

``A physical?'' Lilia asked, unimpressed and a little disappointed. ``That's all?''

Jillian chuckled. ``I like this kid,'' she said. ``How about we give you a physical, too?'' she asked. ``It'll, uh, be less boring that way.''

A flicker of amusement traced over Dr. Brunson's face, and he flashed a thumbs-up to Jillian behind Lilia.

Lilia hesitated, glanced at her mom, who gave her an encouraging nod, and then nodded herself.

``Great!'' We'll just set up a second exam table right here, and we can do them both at once.''

The assistants wheeled a portable exam table in, and Lilia climbed up on it next to her mother.

``Go ahead and collect their vitals while we get the insertion test rig ready to go,'' Jillian said.

Laura and Toby got to work, going through all the usual motions of listening to their hearts and breathing, looking at the backs of their throats, taking their pulse and blood pressure, and so on. When it came time for the well-female exams, the research assistants decided among themselves to have Laura examine Lilia so the girl wouldn't be embarrassed by having a guy checking her out. Toby, meanwhile, examined Evie, who had no such compunctions.

Laura helped Lilia to lie back and put her feet up in the stirrups. Though the girl had been nude around Evie many times, there was something a little embarrassing yet also titillating about being put on display like this.

``This might feel a little uncomfortable, but just relax, take a breath, and let it out,'' Laura said as she slid a speculum between Lilia's labia.

The mixed-breed cringed as the cold metal spread her open.

``Feeling okay?'' Laura asked.

Lilia nodded. ``Um, a little, uh...'' she trailed off, blushing.

``A little what?''

``It's all right, Lilia,'' her mother said when the girl hesitated. ``You know it's not a bad word, and these guys need you to be totally open and honest with them.''

Lilia bit her lip and nodded. ``A little horny,'' she admitted.

Laura smiled and made a note of it on her clipboard. ``Absolutely nothing wrong with that,'' she said, rubbing Lilia's shoulder reassuringly. ``Has it always been like this, or did it change at any point?''

``Oh, yeah!'' Lilia said emphatically. ``I wasn't like this at all before Dr. Evie healed me. After that, well...'' She trailed off again, but everybody knew what she meant.

``Fascinating,'' Dr. Brunson murmured from across the room. ``Absolutely fascinating.''

He toddled off to one of the monitors and began twiddling with knobs and dials. Meanwhile, Laura and Toby were completing their gynecological exams, with Laura noting that Lilia seemed to have inherited much of Evie's characteristic stretchiness.

They moved on, with Toby proceeding to do a penile and testicular exam on Evie while Laura performed a breast exam on Lilia. But, as she pressed down on the girl's chest to feel for lumps, she gasped in surprise on feeling her fingers sink into the girl's chest.

``Oh!'' she said, ``Well, now, that's interesting.''

``Bedside manner, Laura,'' Jillian chided her, chuckling.

``What is it?'' Lilia asked worriedly.

``Nothing to worry about,'' Laura replied reassuringly and grinning sheepishly. ``I had forgotten that many of our participants end up with stomatic areolae, and it surprised me.''

``Stomach-airy-hola what?'' Lilia asked, perplexed.

Evie burst out laughing. ``She hasn't been trained in medical jargon from a young age,'' she said. ``She means that your nipples invert like mine do and can take things into them. Stomatic means they form stomas - holes - and areolae are your nipples.''

``Ohh,'' Lilia replied, grinning sheepishly.

Jillian gave Laura a dirty look, and the researcher cringed. ``Sorry...I'm not really used to working with kids,'' she admitted.

``Not to worry; it's a learning experience for everyone,'' Sam piped up as the robotic arm came to life and started performing its homing routine. ``We all do it at first.''

Encouraged, Laura pressed her thumbs against Lilia's nipples and felt as her hands sank into the girl's chest.

``Does that hurt?'' she asked.

Lilia shook her head. ``No,'' she said nonchalantly.

``Good, good.'' Laura wrote down some notes and then looked up. ``I think we're about done here,'' she announced.

``Just finishing up here, too,'' Toby said, giving Evie a final pat on the shoulder.

``What timing!'' Sam said as the robotic arm returned to its initial folded-up position and a green ready light lit up, ``I'm ready to start!''

``Don't worry,'' Laura laughed, seeing Lilia's saucer-like eyes watching the robot's every movement, ``We'll test on your mom, and if it looks like something you'd be comfortable with, we can try a little bit on you, too.''

Lilia nodded hesitantly as Evie lay back and adjusted the positions of her feet in the stirrups so the researchers could strap her legs and wrists in place. Then they applied a couple of straps of surcingle over her waist and chest.

``Why are you strapping her in so much?'' Lilia asked, a little alarmed. ``Are you okay, Dr. E?''

Evie looked up and chuckled. ``Yes, Lilia, I'm just fine,'' she replied easily. ``The straps are to keep the machine from shoving me up on the exam table. It makes it so I don't have to fight to stay where I am and allows me to completely relax.''

``It's important that she is relaxed because if she tenses, it makes her less stretchy and messes up the test results,'' Laura chimed in.

Lilia nodded, and the researchers finished their preparations.

``Whaddya say, Jillian?'' Sam asked. ``Start with a #24?''

Jillian pursed her lips. ``It's been a while since she's been back. Let's go with a #20 and work up.''

Sam nodded and pressed a button on the robot's console. The arm unfolded itself, rotated around to attach itself to a medium-large, rigid dildo about six inches in diameter and four feet long, and then swung forward shockingly fast, hurtling towards Evie's pussy. Lilia gasped, expecting it to impale her adoptive mother, but then breathed a sigh of relief when the tip of the dildo stopped an inch away.

``Heh, heh,'' Sam chuckled. ``We're not monsters, after all. Commencing lubrication.''

As Lilia watched, a glistening substance began to ooze out of tiny pores all over the dildo, coating it with slick coating. A few seconds later, the arm began to move forward very slowly, pressing the bullet-shaped nose of the dildo up against Evie's pussy. The liger sighed contentedly, and the dildo slipped inside. Sensing very little resistance, the robot slipped the dildo forward fluidly. Evie gasped, her eyes rolling back in her head and her body arching against her restraints in ecstasy. The dildo pressed against the back wall of her uterus, and the robot immediately slowed down to a crawl on sensing resistance. But no sooner had it done that than it began to speed up again as Evie's flexible womb easily stretched to let it in further. The dildo had all but disappeared inside of her when the robot stopped its advance and chimed a tone indicating it had gone as far as its programming would let it.

``How's it feel?'' Sam asked.

``Feels good,'' Evie breathed, beaming. ``I could go for a bigger one.''

``Like a knife through butter, huh?'' Sam chuckled. ``All right. Now we'll do a #24.''

He pressed a button on the machine, and it gently pulled itself out, put the dildo back in its place, and reached for a considerably larger one, this one nearly six feet long and over a foot in diameter. As the dildo swung through the air into position, steam jetted out around #20 with a loud hiss as it went through its cleaning cycle.

``You guys have made some improvements since the last time I was here,'' Evie remarked. ``I bet you're glad you don't have to clean those by hand anymore.''

Sam made a face. ``You know it!'' he said. ``If I never have to clean another one of those by hand, I'll be a happy guy. Fortunately,'' he grinned, jerking his thumb towards Toby and Laura, ``I can delegate that now.''

``That reminds me,'' Evie said, ``It sounds like congratulations are in order, Jillian?''

The now-head researcher bowed humbly. ``It was a great honor, to be sure,'' she replied, smiling.

At that moment, the dildo pressed against Evie's pussy, effectively halting any further conversation as the machine went through its motions. Once more, it slowly and carefully started the dildo into Evie, but as soon as the tip was inside, it pushed forward quickly until it reached her uterine wall, slowed, and then began to stretch her.

``Ooh,'' Evie gasped, her mouth opening wide and her eyes half-closing. ``It's been too long since I had something that big inside me.''

``Any pain?'' Sam asked.

``Nope.''

The machine completed its routine, and they swapped out #24 for an even larger dildo. As this was going on, Lilia was finding herself getting turned on watching the machine work Evie over. While the whole thing was terribly clinical and dispassionate, the noises Evie made and the way her body reacted made Lilia curious whether it really did feel that good. So, as the machine was positioning #30 - an 8-foot long, 20''-diameter dildo - she raised her hand.

``Yes, Lilia?'' Laura asked. ``You don't have to raise your hand,'' she chuckled. ``You can speak freely.''

``Um, Miss Laura,'' Lilia said hesitantly. ``I-I think it might be fun to try that.'' She gestured to the machine.

Lilia couldn't see it, but Jillian and Sam subtly high-fived each other on hearing her words.

``I'm sure we can do that,'' Laura replied, smiling. ``Let's let this round finish with Dr. Evie since it's already started, and as soon as it's done, we'll give you a little test.''

As if on cue, the machine beeped and withdrew from Evie's pussy, eliciting a horny groan from the liger.

``Doing okay?'' Jillian asked.

Evie nodded and rolled her eyes emphatically.

The lead researcher chuckled and began undoing Evie's restraints.

``While we could test bigger - Sam's been putting the finishing touches on #40 - we've established that you haven't tightened up any since the last time we saw you. Time permitting, we'll want to do additional tests, of course (you can never have enough tests!), but at least we've achieved parity.''

Evie nodded and let out an aroused groan as she swung off the exam table and helped Lilia take her place.

``Just relax,'' she said, smiling and kissing the girl's forehead as the researchers readjusted the stirrups and straps for a much smaller body. ``They'll start out small and slowly work up. If you feel like you need to cum, go ahead and do it, okay?''

``That's right,'' Sam interjected emphatically, ``If you try to hold back, you'll tense up. So, if you feel like you're gonna orgasm, just let it happen, okay?''

Lilia nodded hesitantly. Looking up at the adults all around her, she couldn't help feeling a little nervous - but also a little thrilled - as she felt the Velcro tighten around her ankles and wrists and the surcingles go over her torso. What was interesting, though, was that from her position here, she really couldn't see the robotic arm the way she'd been able to from the other exam table. Although it made quiet whirring and whooshing noises, she really had little awareness of its presence.

``All right, kiddo. Let's see what we've got to work with,'' Jillian said, stepping into view between Lilia's legs. ``There'll be a little bit of prodding; we're just trying to decide which size to start with.''

Lilia felt her pussy being lightly spread open and something inserted inside and expanded. She gasped on feeling herself opened up like that and actually felt disappointed as the device was removed.

``Let's start with three centimeters by ten,'' Sam said. ``#3.''

The machine came to life, and as Evie watched it, she stroked Lilia's forehead soothingly. ``Here it comes, kiddo,'' she said. ``Just relax.''

Lilia felt something press against her vagina. It was slightly uncomfortable, but before she even managed to grimace, her labia parted and the dildo slipped inside. She sighed faintly, any nervousness she'd felt before suddenly replaced by contentedness and a hint of lust.

The machine beeped and slid out, and Lilia couldn't help but feel a sense of loss. The dildo hadn't even made it to the back of her uterus, but the lost sense of fullness made her feel a little sad.

``Let's go to a #6. That one seemed awfully easy.''

A larger dildo appeared beneath her, pressed, and slipped inside. Lilia gasped and felt her body move just like Evie's had, writhing around the intruder.

``Oh,'' she whimpered, her three-toed feet curling in ecstasy and desire, ``Make it go deeper?''

The adults chuckled, but Sam looked apologetic. ``Afraid I can't,'' he said. ``That would mess up the test. I can, though, bump you up to a bigger dildo. Let's give a #10 a try.''

``Number 10?'' Evie asked anxiously. ``Are you sure she's ready?''

``Only one way to find out,'' Sam replied, a glint in his eyes. ``She's just as greedy as you were! But, don't worry; you know the machine won't let harm come to her.''

Evie nodded, reassured, and squeezed Lilia's hand affectionately. The machine positioned the next dildo and started it forward. Lilia's eyes bulged as she felt what seemed like a fist pressing against her. She let out a whimper of protest, but just then, the dildo slipped inside. Protest turned to near-orgasm as the dildo - which truly was as big as a fist - slipped inside of her, stretching her pussy and spreading her wide. She'd only ever felt that kind of girth when Evie knotted her, which hadn't happened in quite a while. She squirmed and writhed, her breathing accelerating and her heart pounding.

``Are you doing o - ``

Laura's words were cut off by a sharp groan as Lilia orgasmed hard, her tiny body convulsing against the restraints and her pussy squeezing the dildo for all it was worth.

``Oh, wow,'' Sam said, watching one of the monitors. ``She's got incredible strength! Her VCF is off the chart!''

Evie, as curious as she always was, moved over next to Sam to look at the monitor. Seeing it, she whistled. Lilia's vaginal contraction force - VCF for short - was at least double that of her own!

``You know,'' Toby murmured, ``I wonder if she'd be a good candidate for...you know...''

Lauren's face lit up. ``Yeah! What do you think, Jillian? Test 5-13?''

Now all the researchers brightened.

``If she's up for it, we can broach the subject later,'' Jillian said firmly. ``We've got to maintain discipline and follow through on this test first.''

That cooled the enthusiasm a bit, but Evie could feel it still bubbling just beneath the surface. ``Which is 5-13?'' she asked as she returned to Lilia, whose fur was damp with sweat and whose face looked ecstatic.

``It's a dynamic rigidity test,'' Toby replied. ``It tests the ability to - ``

``We'd pair her with a bullmastiff,'' Laura interrupted simply. ``A male bullmastiff, and let him do what intact males do best.''

Evie's jaw dropped. She closed it and gave the researchers a quizzical look.

``We've had a number of patients develop your stretchiness,'' Sam explained as he maneuvered the next dildo into position, ``And we were curious whether the stretching effects would prevent knotting species from achieving copulation. We've tested it a few times, but none of the candidates had particularly high VCF scores. Lilia here, though, might make for a very interesting case study.''

About that time, Lilia groaned loudly as a 10''-wide, 20''-long dildo pressed into her. It stretched her even wider than Evie's knot and had her babbling incoherently as it pressed up against her womb. The machine slowed, but just as Evie's womb had stretched easily under pressure, so did Lilia's. She sighed and looked down at the outline of the dildo that had appeared on her belly. As she watched, it started moving towards her chest. Part of her was impressed, but most of her was too aroused to think coherently. The dildo pressed still further inside her, gently coaxing her womb to open up for it, but at last, her walls would yield no more. She felt a hint of discomfort as the dildo tried its luck, but then the robot beeped to indicate that it had identified the limit.

``She'd certainly be able to take him,'' Toby murmured.

``5-13 is kind of Toby's pet project,'' Laura said.

``Heh, `pet','' Evie chuckled, eliciting an eye-roll.

``We can consider that later,'' Jillian said. ``Right now, we need to complete the essentials. Laura, you'd identified stomatic areolae. Let's go ahead and investigate that while we're here.''

``They're just going to try inserting things into your nipples with a little more scientific rigor,'' Evie reassured Lilia.

Sam pressed a few buttons on the robot, and it reconfigured itself to thrust downward rather than forward. Selecting a small dildo about the size of a large finger, he initiated the test. Now able to see exactly what the robot was doing up close, Lilia watched with some fascination as it extended its finger-dildo down towards her, made light, tantalizing contact with her nipple, and then pressed more firmly. To Lilia's surprise, she felt her nipple give way, and the probe continued down into her almost effortlessly.

``How does it feel?'' Laura asked.

Lilia pursed her lips. ``It's hard to describe,'' she said. ``Kind of pleasant, but not like feeling it...you know, down there.''

``Any pain? Difficulty breathing?''

Lilia shook her head, and then realized that it was strange that she didn't have trouble breathing when the probe should have been all the way through her left lung by then. She decided not to think about it and instead focused on the slightly titillating sensations she felt as the probe reached its limit.

``Weird,'' Laura said as the probe retracted. ``It's like it's getting deflected in there or something. That should have gone through your back, yet it didn't. It didn't affect your breathing, and we saw no tension on the probe's force sensors to indicate that it was being twisted out of alignment.''

Lilia shrugged, and Evie chuckled. ``Seems like that one's still a mystery from when I was still here,'' she said.

``Yeah, we have no idea how it works,'' Toby confessed.

``But, we can still study it!'' Sam piped up as he brought the next probe to bear.

This one was twice as long - longer than Lilia was deep - and about two inches in diameter.

``If anything starts to hurt, you just tell us,'' Laura said.

But as the machine whirred to life and began to drive the probe into Lilia's right nipple, she felt nothing but a mild sense of pleasure. And, once again, the machine bottomed out.

``We need a version with a camera,'' Toby piped up.

Jillian brightened. ``Yes! That's exactly what we need. Sam, do you think you can rig one up?''

``Uh, not today, but give me a week?''

``Excellent. We'll get to the bottom of this one way or another!'' She paused, pursing her lips. ``For now, let's move on to inflation.''

Lilia's eyes widened. ``Inflation?'' she asked nervously.

``You, ah, don't have to if you don't want to,'' Laura reminded her.

Lilia shook her head. ``No, I-I might want to; I just don't know what you mean.''

``Hop down and I'll show you,'' Evie said with a wink.

The researchers released Lilia's restraints, and Evie helped her down. A little wobbly from getting off more than once, she took a moment to get her feet under her, but then she went and sat on the other exam table to watch her mother. Laura flattened out the exam table, and Evie took up a wide stance on all fours, her ass thrust into the air, her front resting on her forearms, and her tail curled up and out of the way. Sam punched 000 into the machine, and it took up an inflation dildo, which looked much like the others but with a hollow channel through which to pump liquid and some unique features to let it seal itself inside the test subject.

``Ready?'' he asked.

Evie nodded over her shoulder, and the machine maneuvered the large dildo into place.

``Beginning positioning,'' Sam said.

The dildo slipped inside Evie, and parts of the front and back inflated slightly, creating a dumbbell shape. Evie's eyes half-closed in pleasure on feeling the stimulation as the partially-inflated dildo moved forwards and backwards, seeking out the ideal position. After a few seconds, it beeped.

``Positioning complete. Commencing sealing sequence.''

The front and back of the dildo began to inflate in earnest, making Lilia gasp at seeing such a large thing protruding from her mother. Evie sighed and winced slightly as the inside swelled large enough to prevent itself from being pushed out. Already its size was enough to make her belly pooch downward to accommodate it.

The machine beeped again, and Sam said, ``Seal complete. Ready to inflate?''

Jillian nodded, and he pressed another button. To the observers, nothing seemed to be happening other than a look of bliss coming over Evie's face. But to the liger, something was indeed happening: a stream of warm fluid was flowing out of the tip of the dildo. It hit her uterine wall and sloshed down against her abdomen. Already the fluid was beginning to make her womb swell, albeit subtly, yet the warm feeling inside her was so soothing and arousing at the same time that she hardly noticed the gentle outward push on her womb.

``One hundred liters. Still going,'' Sam observed.

Lilia did a double-take. ``100 liters?'' she asked, incredulous. ``But she doesn't even look any different.''

``She tends to swell upward and downward first, and then she begins to swell outward, or at least she used to,'' Jillian replied. ``If that's still the case, that would explain why she doesn't look any different, yet. Around 200L, she should start to show.''

And sure enough, Evie's stomach began to pooch outward not long after that, as if she were entering the second trimester of pregnancy.

``Two hundred liters.''

As for Evie, she was breathing softly, taking in slow, shallow breaths and letting them out so as not to press on her already-full belly. It wasn't painful, per se, so much as uncomfortable, a sensation not unlike having eaten too much. By 300 liters, she had a very round belly, yet she knew she wasn't even halfway to her maximum capacity, yet. At 600 liters, her ``baby bump'' had swollen to stretch her entire front from her breasts down. At 800 liters, she groaned as her back hunched to follow the curvature of her abdomen, giving her a nearly spherical look.

Finally, at 925 liters, the machine signaled that max pressure had been reached. Lilia had initially thought that her mother being blueberry-shaped was kind of funny, but now she went over and took Evie's hand.

``Are you okay, Mom?'' she asked.

Evie grimaced slightly but nodded. ``Full,'' she said with a rueful grin. ``Very full.''

``Let's go ahead and drain,'' Jillian said.

Sam nodded and pressed a button on the machine. Though it had taken a long time to fill her, Evie drained fast enough that the others could watch her belly shrinking. A couple of minutes later, she sighed wistfully as the seal deflated and the dildo left her.

``How do you feel?'' Lilia asked.

``Kind of...empty,'' Evie replied. ``It always feels good to get the pressure off, but losing all of it at once almost makes you feel like something's missing.''

``What do you think, Lilia?'' Laura asked. ``Would you like to give it a try?''

Lilia pursed her lips but then nodded. Evie took a couple of minutes to catch her breath, and then got down and helped Lilia up and into position.

``Now, just hold your tail out of the way, and they'll take it from there,'' Evie instructed.

Sam selected a smaller inflation dildo for Lilia, and it slid inside. At first, it didn't seem like much, but once it swelled to lock in place, Lilia gasped in surprise and moaned in pleasure.

``Starting inflation. Max pressure 25 cmH2O.''

Lilia gasped on feeling the fluid start. It made her feel calm and relaxed even as it began to press on her tiny womb. A few moments felt erotic, like when the fluid made the seal shift against her g-spot, but it was, for the most part, just relaxing. As her body filled, she found herself shifting to get comfortable, but the discomfort she felt wasn't terrible. By the time the machine registered that she'd reached peak pressure, she was nearly asleep.

``Smile for the camera, Lilia,'' Evie teased, holding up her phone.

Half-asleep, Lilia flashed a peace-sign, and Evie showed her the picture of herself. The hybrid gasped. She was as round as Evie had been!

``That'll teach you to laugh at me,'' Evie grinned, winking.

Sam started the deflation sequence, and moments later, Lilia experienced the same sensation of emptiness and loss that Evie had described.

``Don't worry,'' Toby teased, ``There's plenty else to fill you up!''

Laura just rolled her eyes.

``What?'' Toby asked. ``We've completed the essentials, and my project has been on hold for months looking for the right candidate!'' He looked earnestly at Lilia. ``Please?'' he almost begged.

Looking at the goat's plaintive expression, Lilia couldn't help but chuckle a little. ``Well...okay,'' she said hesitantly. ``What do I have to do?''

``In the meantime,'' Jillian said to Evie, ``I've arranged to have you try to heal someone else.''

Evie nodded slowly. ``I can help with that, but I'd like to keep an eye on Lilia during this interspecies trial.''

``Of course,'' Jillian said, nodding.

They followed Toby out and down the hall to another lab. The room was separated into two areas: a testing area with a floor covered in tumbling mats, and an observation room.

``Now, ideally, you'd go in on all fours and let Max have his way with you,'' Toby said. ``We'd be testing to see if you can relax enough to let Max in but then tighten up to keep him from getting out. But, Max is a dog, not a piece of precision mechanical equipment, so there are some risks. He might scratch or bite you in the heat of the moment, might miss - which might hurt - or might try to pull out hard if he gets unnerved. So, for safety reasons - ``

``I'll do it,'' Lilia said.

``But I haven't established the safety procedures, yet,'' Toby protested.

Lilia shook her head. ``You said, `ideally'. I don't want to mess up your test.''

Toby glanced at Laura, who smiled and shook her head, and then at Jillian, who pursed her lips and looked at Evie.

``You're the medical doctor around here and the one to heal her if she gets hurt,'' said the lead researcher. ``What do you think?''

Evie bit her lip. ``She's taken bigger than any dog's knot - heck, I'm bigger than that dog's knot is, and she's taken me, so worse comes to worst, she just relaxes and lets him out.''

``But if she panics, she might not be able to relax,'' Toby interjected.

``We'll all be on standby in case something goes wrong,'' Sam said. ``I can get Max to settle down, Evie can calm Lilia, and you or Laura can administer a sedative to both of them to get them to relax long enough for us to separate them.''

Toby pursed his lips, thought about it, and then nodded. ``Okay,'' he said, convinced, ``But just beware: Max is a, um, big guy.''

He let Lilia into the room via the hallway door, closed that door, and passed through a door on the back wall, closing it behind him. Meanwhile, the others stepped into the observation room. Lilia knelt on all fours, not exactly sure what she was supposed to do, but game to try. If anything, the previous test had left her terribly horny, and this seemed like a good way to burn off some steam.

Moments later, the door opened briefly, and a huge mastiff nearly twice Lilia's size bounded in while Toby quickly got himself set up in the observation room to watch.

Lilia gasped, her eyes wide as the dog came in and sniffed her all over. She instinctively curled into a ball, covering her face and neck. The dog sniffed enthusiastically at her head, whined, and pawed at her a little bit, confused by the game, but then he caught the scent of her backside. Sniffing around curiously, he shoved his cold, wet nose up under her tail. Lilia gasped and squealed in delight as he began to snuffle and lick frantically at her.

``Good, he's interested,'' Toby said over the intercom. ``Now, if you'll get into position like you were for the inflation test, he'll know what to do.''

Lilia hesitated, a little unnerved by the size of the dog, but catching a glimpse of his hefty-looking sheath and large, fuzzy balls, she licked her lips and hastened to get into position. No sooner had she spread her legs than Max leapt up onto her. She gasped as she felt his sharp penis slamming hard against her backside, missing her pussy and hitting her perineum, making her cry out in discomfort.

``Thrust your ass up into the air, and he'll go inside,'' Toby called.

Lilia winced, and fighting her instincts that told her to sink downward, she thrust her ass up towards her canine suitor. His very next thrust hit home, and his legs wrapped tightly around her waist, driving him into her.

If the tests had been clinical and rehearsed, this was uncontrolled chaos. Lilia came almost immediately on feeling the dog's boner roughly grazing her g-spot with each passionate thrust, and yet the best was yet to come. His knot began to swell, and with each thrust, he stretched her a little more.

``He's getting bigger. Get ready to clamp down on him as soon as you can,'' Toby instructed.

Lilia nodded as best she could through her sex-fueled haze. Max continued humping her, his knot growing from nonexistent to the size of a golf ball, then a baseball, then a softball.

``Now, Lilia!''

She gritted her teeth and clamped down. Max let out a surprised yelp but then began panting ecstatically, the feeling of Lilia's tight pussy around him sending him from spurting pre to spurting doggy jizz.

``You're doing great!'' Toby called. ``He might try to swing his legs over and stand butt-to-butt with you. If he does, just try to hold him in with your vaginal muscles. If you can't, that's okay. We just want to see whether it can be done or not.''

Privately, he said to the others that this was the part where the other candidates had lost control. Knotting was easy enough, but when Max had started applying real force, they hadn't been able to keep up with him.

But Max seemed quite content for the moment to rest his weight on Lilia's back and pant hot breath in her ear. For her part, having that large knot pressed against her g-spot and feeling the spurts of hot liquid into her made her orgasm a couple of times at least before Max did exactly as Toby had said he would.

Without much warning, he clambered off of her, hiked one of his legs, and then rotated around, putting substantial strain on his knot that was lodged deep inside Lilia. The girl let out a determined grunt, gritted her teeth, and clamped down for all she was worth. Max whined in delight, and Lilia was rewarded for her efforts by another hot, thick spurt of cum into her womb.

``Well,'' Toby said to the others, ``That went perfectly according to plan. This proves definitively that some do have the ability to control how flexible they are.''

``I wonder if she can be flexible again,'' Laura said thoughtfully, ``Or if she's stuck being tight now that she's done it.''

``Only one way to find out,'' Toby said. ``Lilia, would you let go of Max now, please?''

Lilia whined. ``But he feels good!'' she protested.

``I know, but you two can play some more later,'' Toby promised.

Lilia huffed but nodded, and a second later, Max pulled out effortlessly and went off to go lick his still-hard dick until his erection subsided.

``Well?'' Toby said to Laura, giving her a smug look.

Laura rolled her eyes. ``Fine, fine, you win,'' she said.

``And that is a week of not having to fill out summary reports,'' the research assistant gloated.

``For now,'' Laura replied, smirking. ``Next time, I'll bet you double.''

The two made a few idle, good-natured threats at each other until Lilia got to her feet. It took her a bit because as soon as Max had taken care of himself, he'd buried his tongue under her tail, lapping at his own fluids and hers, and she'd given in to lust as his tongue probed deep and exciting parts of her anatomy, somehow able to lick both her clit and her g-spot at the same time. The researchers had left her to have her fun while they talked over the next tests with Evie.

``Mrs. Saunders is the one I've lined up for you to take,'' Jillian said. ``Bovine, 53 years of age. She's suffering from acute grief stemming from a car crash that paralyzed her from the waist down and killed her parents, husband, and three children. She was committed to a psychiatric hospital after attempting to kill herself. One of her psychiatrists is familiar with our work and wondered whether you could heal her body and her mind.''

Evie started to protest, but Jillian went on.

``I've warned them that there is a risk she will be terminated,'' she said, ``Or that we will attempt the treatment and be able to cure body or mind but not both. I know it's a lot to ask, Evie, but this could be a huge breakthrough.''

Evie nodded slowly. ``I understand,'' she said. ``But, healing sometimes takes days - even weeks!''

``We're prepared to put you up here if you need to take time off,'' Jillian said. ``I just figured you couldn't possibly turn this one down.''

``Well, when you put it like that!'' Evie chuckled, shaking her head. ``All right.''

They went down the hall to another lab, where Evie was shocked to see that the cow in a wheelchair and her psychiatrist were already waiting.

``My gosh,'' she said as an aside to Jillian, ``How long have they been waiting?''

``Not very long at all,'' the psychiatrist replied, overhearing them and standing. ``You must be. Dr. Evie,'' he said, extending his hand. ``I've heard great things about you. I'm Dr. Evans. I know your time is valuable, so I won't waste it. My patient is suffering, and I hope you can help.''

``We'll do everything we can for her,'' Jillian replied, ``But I must remind you that there is potential that she will not survive. As you have been granted her power of attorney, the responsibility falls on you to accept that risk.''

``Frankly, I think it's the second-kindest thing for her,'' the ferret replied, ``Short of rolling back time, that is.''

``Or healing her broken heart,'' Evie interjected.

``Can you do that?'' Dr. Evans asked.

``We don't know,'' Jillian said quickly, ``But we are going to attempt it today.''

``As a fellow medical professional, I took the Hippocratic oath just as you did,'' Evie said. ``I promise, I will do all that I can to help her, but I can't promise this will work.''

``Best case, she comes out with a healthy mind and body and goes on to live out the rest of her days happily. Worst case, she gets her wish to be with her loved ones,'' Dr. Evans mused. ``Either way, it's a better outcome than she's got now.''

Evie and the researchers nodded, and the ferret signed the release papers.

``You've stopped her sedatives?'' Jillian asked.

Dr. Evans nodded. ``She should be coming to anytime now.''

As soon as she did, Dr. Evans explained the situation to her, the research team introduced themselves, Evie, and Lilia, and Jillian explained to her that she was going to have to pull herself into Evie's womb, that nobody would force her.

``If it gets me closer to my dear Charles, Mother, Father, and my babies, I'd crawl across a field of broken glass,'' the cow replied gravely.

With that final confirmation, the researchers helped her strip out of her clothes and began the arduous task of putting the countless leads on her head and chest. She sat through it all with an air of dignity and perseverance that made Lilia hope she came out okay. At last, the sensor check was complete, every lead was verified functioning, and the time had come. Evie sat on the floor with her legs spread wide.

The cow looked at her quizzically. ``You expect me to fit in that?'' she asked.

``Don't worry; she's very stretchy,'' Jillian said. ``Once you start in, you'll see what I mean.''

Mrs. Saunders nodded skeptically, and then, with the help of her psychiatrist, got out of her wheelchair and lay face-down on the floor. Propping herself up on her arms, she dragged herself forward, crawling right up to Evie's groin.

``You're sure you want to do this?'' Evie asked.

The cow scoffed incredulously in response and pressed her face to Evie's groin. The liger sighed with arousal as the cow's head pressed inside. Spreading her legs, she gave Mrs. Saunders all the space she could to let her continue. Her arms came next, and since the cow was moving all her weight on her elbows, the force made Evie wince. With a few more lurches forward, the last of the cow's functional parts slipped inside, leaving only her paralyzed waist, hips, legs, and feet.

``Doing okay, Evie?'' Jillian asked.

Evie nodded, though she was sweating from exertion and panting from arousal.

``You're not quite all the way in,'' Jillian called into Evie's cavernous womb. ``Still have half of you to go.''

It took several more minutes for the cow to pull the rest of herself in, but at last, her toes disappeared, and Evie, splayed out with a bulging belly, breathed a sigh of relief.

``Monitors all look good,'' said Sam. ``Wait. What's that?'' he asked, pointing at one of the signals.

Jillian looked at the signal and paled. ``Evie,'' she said as calmly as she could, ``You need to push her back out.''

Lilia picked up on the hint of urgency in her voice. ``What's wrong?'' she asked.

``Lilia, please, be quiet right now,'' Evie interjected. ``Something is wrong, and we can't have any interruptions.''

She grunted and squeezed, but after a few seconds, she addressed Jillian. ``I cannot push her out,'' she said. ``She seems to be stuck.''

``Should I go in after her?'' Toby asked.

``The two of you won't fit, and the extra movement could cause Evie to orgasm,'' Jillian said, shaking her head. ``Evie, I'm sorry to ask this of you, but - ``

``I cannot orgasm under stress like this,'' Evie replied, a tinge of alarm in her voice.

``If you don't, she will die a traumatic death. She's suffering now,'' Jillian urged.

``We've got to find a way to make her get off,'' Sam said. ``Uh, electrodes. Let's get the electrodes.''

The researchers, used to acting in carefully controlled experiments - indeed, the experiment with Max was by far the most exciting thing any of them had done in years - were not thinking straight under the pressure. Toby and Laura bumped into each other, Sam fumbled with the E-stim machine, and Jillian did her best to keep everyone calm. As all of this unfolded, Lilia watched in dismay and growing panic, yet there was a certain calm beneath the surface of it all that told her there was a way she could help.

As if drawn by a magnet, she turned and moved towards Evie, who was sweating profusely with worry and discomfort now.

``I know what will help you get off,'' Lilia said.

Evie looked at her, baffled for a moment, but as the cub reached out and grasped her penis, it dawned on Evie what Lilia was planning. Giving her a faint nod, she sat back and tried to relax.

Lilia grasped the barbed tip of her mother's two-foot-long penis. Making a cone shape out of her hand, she circled her mother's urethra a few times and then plunged down inside. Evie groaned loudly, gasping as her back arched lewdly. Encouraged, Lilia pulled her arm out and thrust it down into her mother's penis again. Evie's hips bucked roughly against Lilia, driving the cub's arm shoulder-deep into her. Lilia began to rotate her arm and tried to spread and close her fingers, stimulating her mother from the inside. The intensity of Evie's thrusts increased, and so did the duration.

``All right, here we go,'' Sam said, having gotten the E-stim positioned and configured at last.

Lilia thrust one more time, reaching as deep into her mother as she could, and Sam fired the E-stim. Evie cried out as a painfully powerful orgasm overtook her, lifting Lilia off the ground.

A blast of cum launched Lilia's arm out of her mother's penis, and gallons of hot, thick, white cum splattered on the ceiling high above. Another gush hit the wall on the far side and left a streak across the floor that painted the wheelchair but narrowly missed the onlookers. Gush after gush poured out of Evie's cock, and she moaned and cried all the while as she rode out one of the most powerful orgasms she'd ever had.

At last, the onslaught stopped, and Evie collapsed in the corner, exhausted and emotionally spent. Her womb had returned to normal size, and Mrs. Saunders was no more.

Nobody said anything for a long time.

``Well,'' Sam said at last, ``Let's get this place cleaned up.''

``We'll do a post-mortem immediately,'' Jillian said to Dr. Evans. ``The recorders captured everything.''

The ferret shook his head sadly. ``I just hope she didn't suffer. What was going on?''

``Yeah!'' Lilia interjected.

``The best I can describe it was anaphylactic shock,'' Sam said. ``We'll know more once we've investigated.''

``And here's thanks to you for thinking on your feet,'' Laura praised Lilia. ``You kept it together while the rest of us were running around with our heads cut off!''

Lilia beamed, but her moment of glory was short-lived.

``I just wish that nice cow had lived,'' she said.

Dr. Brunson, who had walked in after hearing the commotion, knelt next to her.

``Science can be elusive,'' he said, patting her shoulder reassuringly. ``I remember a time earlier in my career, shortly after your mom left, in fact, when we had a promising snake boy come to us. He had been practicing a technique where he swallowed rodents whole, using his mouth much the way Dr. Evie uses her vagina. It was promising research because it would have let males heal as well as avoiding the risk of orgasm.

``However, as promising as he was, we got in a hurry. He was able to swallow feral rodents with ease and return them healthy, even curing minor skin blemishes, but the transition to full-grown anthro rodents proved to be too much for him. To this day, I don't know if it was the size, the fact that it was another anthro, or what, but that boy orgasmed so hard that there was a pool of cum stretching wall-to-wall. The test subject disappeared, and DNA analysis later revealed that it was indeed the test subject our custodian had to mop up.

``But, as disappointing as the outcome was, we learned from it, improved our processes, and haven't had an incident like that again. We can't know everything all at once. Science is a flirtatious mistress, showing a little leg there, a bit of a shoulder there, always egging us on. But when we try to leap at her, she smacks our hands. That doesn't mean we shouldn't pursue her; we just have to remember our manners, and someday, she'll eventually open herself up to us.''

For a moment, nobody said anything.

``Science is a hussy. Great,'' Laura said at last, tossing a stack of papers in her hand up in the air and shaking her head, eliciting a chuckle from the others.

``At least,'' Sam interjected over the nervous laughter, ``It looks like she died happy.''

The others huddled around his monitor, and Sam replayed the ordeal from Mrs. Saunders's perspective.

``There's where the attack started,'' he said, pointing. ``You can tell she's agitated, not just worried but panicking. Then here,'' he said, pointing to another part of the wave, ``She abruptly becomes preternaturally calm.''

``Did she die?'' Lilia asked.

Sam shook his head. ``No, her brain waves are still active. She's not even in a coma, yet. She's just...very calm. This was about the time you started trying to get your mom to orgasm, Lilia. It might be thanks to you that Mrs. Saunders stopped suffering. Here's the jolt of the E-stim - you can see all sensors picking up on it - and then things start to happen very fast.'' His face lit up. ``We've substantially upgraded our equipment since the last time we ran this experiment, and we get a lot better resolution and nuance than we had before. See these scattered waves here, all these gamma waves? This is most likely her life flashing before her eyes. But this - this - is beautiful. See how these waves over here coalesced and evened out? Then these waves over here - those alpha waves slow to become theta waves. She's utterly at peace. I could be wrong, but I think the last image she saw was her husband, her kids, or her parents, and told them she was coming to see them. After that, you see those waves slow and then eventually stop. She's gone.''

It took time for all of that to sink in, but if nothing else, it had the effect of letting everybody relax a little bit.

``A fine hypothesis,'' said Dr. Brunson, ``But we'll have to test it!''

He might have ceded control to Jillian, but on matters of research, he was still unquestionably the boss. With their hands full tracking down the root cause and understanding the data they'd collected, Jillian told Evie that that was all the tests they could perform that day. She thanked Evie for coming in and said she hoped the liger and her adopted daughter would come back again soon.

Evie and Lilia looked at each other, smiled, and Evie said, ``I think we could manage that.''

``The science must get done!'' Lilia proclaimed.

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