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Life of a Firefly (age 5-9)

Hotaru was just under 5 when she first found the chest. She'd seen it before, she remembered, but daddy had moved it when she got too curious. She knew that it had belonged to her mommy, and she already understood that her mommy had gone away the day she was born. She only knew her mommy from photographs and daddy's stories, but needless to say, she was curious. That's why she'd kept searching for the chest, until finally she found it, in the back of daddy's closet.

It wasn't locked as she had feared, but what she found inside confused her. Some of it was clothes, but it was different from any clothes she'd seen before. There were photos of her mother too, but... different from the ones dad had in frames downstairs. She was wearing the odd clothes, but not much of them at all -- it looked like she'd be cold. And in some of them, she was doing strange things with those odd, elongated things that there was a bunch of in the chest too. They looked a bit like the thing daddy had hanging between his legs -- she'd seen it when he bathed and wondered why she didn't have one.

The contents of the chest confused her, but she wasn't about to let that stop her. She'd heard the grown-ups say that she was a 'prodigy', which apparently meant that she was smarter than the other kids. So she knew that there was no point in asking THEM, and she didn't want to ask daddy, 'cuz then he'd know that she'd found the chest's hiding-place, and then he might move it again...

And so, she closed the chest and left it where she found it, as she went out to begin her research. The lady at the library knew about the 'prodigy' thing, so she didn't mind if Hotaru left the kids' wing of the library to look for more grown-up books. She spent months searching through every book and magazine she could find, searching for pictures of anything like the contents of the chest, returning to the chest to re-familiarize herself with the objects when she was uncertain of her memory.

Bit by bit, she started to put it all together. It took over a year, and more than once, adults had noticed the books and magazines she was looking at and been strangely disturbed. But they'd apparently chalked it up to 'childish curiosity'. She didn't really care, she just wanted to find out what the things in the chest was all about. And piece by piece, she did. It all came back to something called 'sex', she discovered. The clothes were special clothes you used before or during sex, and the elongated things, which were apparently called 'dildos', was something you used if you didn't have a sex-partner -- from what she could tell, it usually took at least 2 people to have sex, sometimes more, but the 'dildos' eliminated that need. And the pictures were of her mother having sex with her daddy, using the dildos, and other things she hadn't entirely nailed down yet.

Making these discoveries, however, hadn't cooled her interest in the least. Quite the opposite. 'Sex' had clearly been very important to her mother, and the more she learned about it, the more intriguing it seemed. With unwavering determination, she continued her studies, investigating the biological side of it, learning about vaginas and hymens and penises, and how it all fit together. She had already let her fingers investigate her own vagina a few times, and found that just like the books said, there was something stopping her from pushing her finger very far inside. She didn't want to break it, at least not yet, so she hadn't gone further than that. Most of what she read seemed to indicate that it was supposed to be a big deal when you broke it.

Then came her sixth birthday, when her daddy surprised her with the best gift ever -- a greyhound puppy that she named 'Dino', after the family pet in The Flintstones. Well, she called him a puppy, but he was already tall enough to easily lick her face without needing to jump up or even stretch much. Daddy hadn't wanted the trouble of house-breaking a puppy, apparently, so he'd gotten one who was already old enough to know how to go on walkies. She didn't mind, and Dino was very nice to her.

He actually distracted her from her research-obsession for a week or two... until, one evening, she noticed that he was licking himself in the crotch, and something pointy and bright-red was poking out. It took her a moment to realize that it was a dick -- just like the ones she'd read about and seen pictures of, though quite a bit smaller. Somehow, it had never occurred to her that animals might have them too! Maybe this was a chance for her to try out this sex-thing without anyone finding out - Dino wouldn't tattle on her, after all. Her interest was re-ignited, but her search for information was initially unsuccessful -- she couldn't find much of any information about whether dogs could have sex with humans, in ANY of the books she consulted.

But as luck would have it, she soon found a whole new source of data. Her daddy had finally decided that she was old enough to try that 'inter-net' thing she'd heard so much about from other kids and grown-ups too, since she was six now and had proven that she was responsible by taking care of Dino for a while. The internet, as she had heard, turned out to be an absolute treasure-trove of information, with every possible question answered and illustrated. When daddy was busy elsewhere, she searched for information about sex, and was swiftly buried by a deluge of data.

It took her a while to sort through it all, to search out the details she actually needed. She found videos of really young girls -- not quite as young as her, but fairly close -- having sex with older men, and seemingly enjoying it a lot. Some of them claimed it was their first time, too. Thus, she concluded that even though most of what she'd read claimed that sex was something for adults only, you could do it even if you were younger, too. And after all, she was supposed to be ahead of all the other kids anyway, right? She also got her question about dogs answered, with a surprising number of videos of women having sex with dogs. Mostly bigger dogs than Dino, but she figured it was better to start small anyway.

Determined to take her studies past books and videos and into real experiments, she waited for one of the evenings when daddy had to go away for a while -- he didn't like to leave her alone, but since she was a prodigy, and seemed so mature, he trusted her to look after herself for short periods of time. That evening, after he'd gone, she took Dino up to her room and took off all her clothes. She'd studied the videos of women and dogs earlier, and determined that her child-sized bed was just about the right height for Dino to mount her -- many of the videos had shown the women lying over something or leaning on something, and she figured it was a 'better safe than sorry' thing.

Dino seemed to be sensing her excitement. He was running around the room, whining and sniffing at the air. She wondered if he'd know what to do. The dogs in the movies didn't always seem to, but some of them apparently did. She felt strangely wet between her legs, a phenomenon she'd read about, but never experienced -- at least not to such a degree. Leaning over her bed, she spread her legs, and called Dino over. He was there in a flash, nose poking into her crotch as he breathed deeply of her scent, tongue lolling out as he panted. It tickled, but not unpleasantly, and she felt her own breath getting deeper as well.

As for Dino, well, he was a young dog, but not so young that his instincts hadn't kicked in. The girl in front of him might not be shaped quite like his mind foggily told him she OUGHT to be, but the scent of arousal was unmistakable, and he was young and horny -- the details seemed unimportant. There was a hole between a pair of legs, and that was close enough for him.

With a leap, he was on top of her, large paws pushing into the bed sheets. His legs weren't quite long enough -- a lot of his weight rested on top of her, squeezing her into the mattress and making it hard for her to breathe. His canine cock was all the way out of the sheath now, bright red and standing at attention. Exploratorily, he pushed it forwards, seeking a warm, inviting hole to thrust into.

Hotaru felt something poking as her asshole, and winced. He was pushing pretty hard, but there was no way he'd find anything there. He was probably too young to know how to do it properly, she figured, trying to breathe shallowly under his weight. She'd have to help guide him, like in many of the videos. Sliding one arm down her side, she reached behind her and managed to grab his dick, causing him to immediately pause his ferocious thrusting in confusion. It felt surprisingly hot and slick. Pulling it down and forwards, she guided it towards her virgin pussy-hole, which was fast becoming wet enough to start dripping on the floor.

Feeling the soft, inviting folds of her outer labia around the sensitive tip of his dick, Dino gave an excited bark and pushed forwards, eager to ensure that the hole he'd finally found didn't disappear on him again. The erect member easily punched through her six-years-old virginity, causing her to cry out in sudden pain, while seeping drops of blood was added to their combined lubrication.

Seeking to anchor himself solidly in her pussy, Dino pushed onwards, unconcerned with the cry. His dick was rapidly inflating, growing to its proper size inside of her, stretching the untried pussy-walls as it went deeper and deeper. Hotaru was just trying to breathe as the pain travelled deeper inside of her. Bigger and bigger it grew, as Dino poured slow but powerful thrusts into her, stimulating nerve-clusters that she barely knew she had. The pain of her broken cherry began to fade under a rising flood of pleasure.

After a few minutes of this, Dino had reached his full size, and his knot was ready for action. Eager for the ride to get started for real, he pushed forwards even harder than before, nearly crushing Hotaru against the bed. She felt a strange 'bulge' pass through her already over-stretched labia, and no sooner was it inside than it started to swell like crazy. The internal pressure soon had her pussy-lips bulging out crazily, while the tip of his cock was forced further forwards, forcing open the mouth of her cervix by just a millimeter. The tightness of her pre-teen pussy ensured that the knot was solidly locked in place, and the young dog's cock had managed to entirely fill her up, leaving not the least bit of space left as her sensitive inner tissue was stretched tautly around his girth.

But despite this, Dino was determined to get a proper fuck out of it. His weight crushed her against the bed when he pushed inwards, driving the breath from her lungs, and as he pulled back, she had to cling to the bed for her dear life, to avoid being dragged right off of it. The pain of the huge knot, and the suddenly increased roughness of the ride had pushed the tides of pleasure back down again, and for the moment, she was mainly concerned with surviving.

Considering the extreme tightness of her pussy, it was no surprise that Dino didn't last long -- which was fortunate, since he'd likely have torn the poor girl's pussy if he'd kept going much longer. With a happy bark, he came, pouring his cum directly into her young womb, filling and expanding it. The unfamiliar sensation sent shivers down her spine, soothing the pain of the stretching, and bringing her to a brief, shuddering orgasm -- the first of her young life.

A minute later, he was done, leaving her with a pleasantly-full feeling in her belly, which sadly didn't do that much to counteract the still-painful stretching of the rest of her pussy. At least the weight that had been pushing her into her mattress, making it hard to breathe, disappeared, as Dino jumped off of her, swinging his hind leg over her back to leave them connected ass-to-ass.

Dino waited a couple of minutes after that, but he was a young and impatient dog, and now that he had gotten his rocks off, he was suddenly thinking about other things he'd rather do than just... STAND there. Whining slightly, he attempted to move away, pulling at the connecting point between their groins. Hotaru cried out in renewed pain, feeling the huge knot tearing at her insides, feeling like she was about to be turned inside out, clinging desperately to her bed.

Overwhelmed by the pain, exhaustion, and many unfamiliar sensations she'd experienced in the past few minutes, she blacked out, allowing Dino to essentially drag her off the bed by the groin. Feeling her slackening behind him, and hearing the thump as she hit the floor, however, Dino paused, suddenly uncertain. Looking behind him, he saw her laying there, her head now resting on the light-blue carpet, her eyes still open, but empty and white as they had rolled around in their sockets. Her ass still remained high in the air, held there by his knot. Whining slightly, he uncertainly lifted one leg, then put it down again. He was a young and inexperienced dog, but he knew that she had made him feel good, and he was pretty certain that SHE wasn't feeling very good right now -- and that seemed wrong.

With a canine sigh, he stopped moving, standing steadily as Hotaru stirred behind him, gradually regaining consciousness. She was clearly still uncomfortable, but apparently not as much. Silently, they stayed like that, waiting patiently as the minutes ticked by. It took nearly an hour before his knot had finally deflated enough that he could pull out with only a minimum of pain on Hotaru's part, but when he did, a spurt of blood-mixed cum followed it, staining the carpet. Hotaru remained unmoving, too exhausted and agonized to even THINK of getting up.

Curious, Dino turned around to get a better look at what he'd been connected to for all that time. The hole was still hanging open, blood pooling on the lower labia from the torn hymen, and several minor tears in the inner wall caused by his size and roughness. Feeling vaguely responsible, he moved in closer, and let his large, soft tongue caress the tender flesh, soothing her pain and briefly reminding her of the pleasure she had felt when he came inside her.

Even attended by Dino's gentle ministrations, however, it took two hours before she had recovered enough to get up, and stumble to the bathroom to clean herself up, and tend to her very sore crotch. She spent the next several days walking like she had a football between her legs, and had trouble sitting down. Most people would probably have been discouraged at that point. But not Hotaru. Rather, she was determined to learn from her experience.

Even as she was recovering from her first sexual encounter, she was busily finding out what she could've done differently, how to decrease the discomfort and increase the pleasure, making mental notes and deepening her research on the internet, figuring out solutions and improvements. Even so, it took her a month to work up the courage to try it again. Once again, dad would be gone for the evening, out on a date with that Janet-woman again. Hotaru didn't like Janet - not that she wasn't nice, but she couldn't stand the idea of some woman moving in on her dad, to take her mother's place -- or, worse, HERS.

Determined not to think about it, she took Dino up to her room, and made her preparations. A jump-rope tied between two posts of the bed would give her something to hold on to. Last time, she'd torn up her sheets -- and her nails, a bit -- while clinging to the bed for support. A pillow placed on the edge of the bed would prevent her from being squeezed quite so uncomfortably by Dino's weight. And, most importantly, she needed to prepare herself. From the chest hidden in the back of dad's closet, she'd borrowed a couple of her mother's toys, carefully cleaning and disinfecting them before getting them ready for use.

Sitting on the edge of her bed, she slid the smallest of the dildos down between her legs, moving the tip up and down to tease her labia before slowly pushing it inside. It wasn't as big as Dino's fully-erect cock, but she still winced a bit as it parted her folds. Carefully, she moved it back and forth, feeling that pleasurable sensation rising again as she grew wetter. Feeling that the lubrication had reached a sufficient point, she pulled the small dildo out, and picked up the second one instead -- a somewhat bigger one, covered in bumps and ripples. This one was, as far as she could tell, just about the same size as Dino - minus the knot.

The rippled dildo entered her more easily than she'd expected -- her built-in lubrication was doing its job, and she felt only the slightest stretching-pain as the irregular surface stirred her tender nerves, making her shiver in rising pleasure. As she slowly moved the dildo in and out, she was tempted to just keep going until she had another orgasm, but she somehow felt like that would be the same as giving up, admitting that she couldn't handle a living partner like Dino. And besides, Dino seemed quite enthusiastic this time, already moving excitedly around the room and sniffing at the air -- clearly, he could smell her arousal.

Satisfied that she'd gotten herself properly stretched-out and lubricated, she pulled the second dildo out, reminding herself to get both of them cleaned and back in the chest before dad could get home. Then, resolutely, she jumped down and laid herself over the edge of the bed, supported by the pillow, and gripped the rope tightly. She didn't even need to call for Dino this time -- as soon as he saw her assume the position, he was on her, his weight pushing her into the pillow as he once again jabbed at her crotch for something to enter. Like before, he hit futilely around her asshole several times, and she was just about to reach down to guide him in -- when he lucked out and hit the mark unaided.

She clung to the rope with all her might as he impaled her, driving the air from her lungs. He was certainly eager this time, and within minutes, he had entered her fully, his knot swelling inside her once more. The pain was intense -- not as bad as before, but still pretty bad, particularly around her cervix. Her careful preparations had given him enough leeway and lubrication to actually thrust forwards after knotting with her, pushing the tip of his tapered cock into the tiny opening of her womb, stretching it slightly.

But as severe as the pain was, her lust was stronger. Playing with the dildos had gotten her horny, and she was now rapidly rising towards an orgasm, feeling him moving and pumping inside of her, radiating a strong sensation of warmth and life. Knowing that they'd be bound together for hours, as she now did, somehow just made it all feel better and more arousing. She found herself hoping that it would go on longer than it had last time...

Her hope, as it turned out, was not in vain. Unbeknownst to her, Dino had been far from idle for the past month. With the canine confidence borne of losing his virginity, he'd proceeded to seduce the two fine bitches who lived next door, and he'd been lavishing his attention on them just before Hotaru had called him inside. With his balls thus already emptied, it took him a lot longer to work up a load than it had last time.

For half an hour, he screwed her tirelessly, pounding her tight snatch unceasingly, lifting her up to the heights of pleasure again and again. Four times she climaxed, each time stronger than her first. Her mind had been opened to a whole new world of mind-blowing pleasure, far removed from simple curiosity or dry studies. Over that half hour, the pounding of his hard cock transformed a curious young girl into an insatiable sex-addict whose appetites would, over the years to come, lead her to experience virtually every kink and sexual variant known to man.

But for now, she was simple cumming harder than she would have thought possible. By the time Dino finally came, spurting his load directly into her womb, the pain of the hugely swollen knot had somehow diminished, becoming almost pleasant instead. Feeling the hot fluid filling her, she started rising towards a fifth orgasm even as Dino - having done his job -- jumped off of her and swung his leg across to turn his back on her like before.

In the rising tides of pleasure, she felt the onset of a different, more mellow and relaxed orgasm, different from the furious climaxes that the violent pounding had brought on, and the sensation caused her to relax her grip on the jump-rope a bit... at just the wrong moment. Suddenly, Dino's ears perked up, and he gave an excited bark, before jumping forwards with surprising strength. Shocked by the sudden pull, she lost her grip on the rope, and before she could react, she'd been dragged off the bed. Undeterred by her shout of surprise and pain, Dino walked towards the door, left half-ajar after she'd fetched the dildos from the hidden chest, dragging her behind him.

Half-fainting from the intense pain, she desperately reached for anything within reach while awkwardly half-crawling backwards in an attempt to lessen the pain in her crotch. Clawing at the floor, but finding no support, she was pulled across the hallway floor outside and, she realized with horror, towards the stairs leading down to the entryway. It was all she could manage to keep from falling over and breaking several bones as Dino determinedly pulled her down the stairs.

Then, finally, he stopped, allowing her to regain her breath as the pain cleared somewhat. Only then, as she looked over her shoulder, did she realize why Dino had been so eager to get down there. Apparently, dad's date had been cut short. Certainly, he was home early, standing there in his fine suit, looking unsurprisingly shocked at Dino's enthusiastic welcome. Mortified, embarrassed, and terrified that dad would punish her or take Dino away from her, she broke down in tears on the entryway floor.

Things, however, didn't turn out that badly. After overcoming his initial surprise, her dad simply held down Dino to keep him from running anywhere else, hugged his daughter tight and tried to calm her sobbing. Hours later, when Dino had deflated enough to pull out, he helped her clean up, and then they settled down to talk. He had many questions -- if she knew what she was doing, why she was doing it, why she was doing it with her dog... things to that effect. But as they talked, he was gradually convinced that yes, she DID know what she was doing, she'd done her research and done her best to make it 'safe'. Remembering his wife's death by childbirth, and being well aware of his prodigy daughter's rapid maturation, he realized that at the very least, her relationship with Dino would greatly decrease her odds of winding up with a far-too-early pregnancy, which -- as a surgeon -- he was well aware could be fatal.

He loved his daughter, and so, he knew he could not turn his back on this aspect of her. He could only try to make it a bit safer. He made sure to buy her several small-sized vibrators and toys, hoping to discourage her from further investigating her mother's trove, which contained a few things that could easily cause nasty tearing on someone her age. He made sure she knew that he would be happy to answer any question she might have about sex -- figuring that however uncomfortable it might be for the both of them, it was better than her seeking the answers through direct experimentation. After a while, he also provided her with a credit-card she could use to access certain internet-sites for further 'research'. When she wanted to look up more info about the sexual possibilities for a girl her age, he even provided her with a few pre-paid credit-cards for safely accessing websites that normally catered to pedophiles... taking some pains to ensure that he never saw any of the things she found, himself.

As time passed, Hotaru thus made many discoveries. She soon figured out why Dino had lasted so much longer the second time they'd had sex, and made a habit of giving him a blowjob before letting him mount her -- finding out, in the process, that she rather enjoyed the taste of his cum. Shortly after, she noticed how he always licked his groin after they'd had sex, and decided to try that too -- the taste of their mixed juices, she found, was even more scrumptious, even addictive. From then on, she would almost always blow him first, then clean his dick with her tongue after he'd finished. Besides, it was only fair -- he gave her so much pleasure, so he shouldn't have to clean up after it, too.

She also found that she really enjoyed the vibrators that her dad had bought for her. Dino had limited stamina, but the vibrator could keep going as long as you had batteries, and as her need for release grew ever-more frequent, she took to wearing a dildo or vibrator up her pussy whenever she could do so safely, keeping it in place with her panties -- panties that, inevitably, developed a large, wet stain on the front soon after she put them on. She soon found that she was going through a truly unacceptable number of batteries in her quest to satisfy her need, however, and worse, the fairly weak vibrations of the small vibes were gradually becoming insufficient to actually get her off -- at most, they kept her in a pleasant state of heightened lust.

Seeking a solution through her online research, she found mention of the Sybian, and other heavyweight sex-machines designed to be linked up to main current or large-scale batteries. Many were for sale, but the price-tags were dizzyingly high -- thousands of dollars. She wasn't sure if dad would buy it for her if she asked, but she didn't want him to have that kind of expenses on her account. Well, she was supposed to be a prodigy, wasn't she? She should be able to figure out how to improvise something like that. She found mention of that in various places, too -- upgrading ordinary vibrators to run off of a more powerful current. She could do that, she decided.

After looking up some basic information about modifying electronics, she set to work 'hot-wiring' one of her vibrators -- a medium-sized rubber vibrator. She figured that the insulating rubber should, at least, ensure that she didn't accidentally electrocute herself. With remarkable ease, she managed to modify the battery-assembly to take a simple two-wire input, and armed with a pair of wire-strippers and an old power-plug from her dad's workshop, she easily fixed up the means to connect it to main current.

Attaching the two wires inside the battery-assembly, she plugged the wire into a wall outlet, and was gratified to find success at her first attempt -- as soon as she turned on the dildo, it leaped to life, vibrating far harder than it had ever done before, without the need for expensive batteries. No sooner had she confirmed that it worked, before she was overcome with the need for release. Quickly, she stripped off her clothes, and removed the small, now-obsolete battery-powered vibrator that had been keeping her nice and horny while she worked.

Licking her lips, she pushed the rubber vibe inside -- it slid in easily enough, thanks to her constant state of high lubrication, and her frequent 'stretching' by the hand (or, rather, dick) of Dino. It easily went far enough in to nearly touch her cervix, while still leaving enough of the base outside that she was in no danger of getting juices on the connections. Already breathing heavily, she switched the dildo on again, and felt her entire body shake with the powerful vibrations.

She quickly worked her way up to a powerful orgasm, and felt another approaching rapidly on its tail. The pleasure was intense, and the knowledge that she'd built the instrument causing it herself just made it feel more delightful. Better yet, she could feel the vibrator getting warmer inside of her, radiating heat just like Dino did, making it feel more lifelike than ever before.

Lost in her second, third, and fourth orgasm, however, she didn't notice just how hot it was getting. From Dino's jackhammer-like thrusting, she'd learned how to enjoy her pleasure with a bit of pain on the side. It wasn't until the heat passed from merely 'hot' to 'burning' that it began to dawn on her lust-addled mind that something was wrong. Fumbling with shaking fingers, she turned off the dildo, and realized that the base of it was hot enough to nearly burn her fingers. The 'hot-wiring' had wound up becoming somewhat more literal than intended...

As she tried to pull the overheated dildo out of her snatch, however, she got a nasty surprise -- it didn't really want to leave, tugging at her inner walls like glue. The heat had caused the rubber to melt, and now it stuck to her pussy, making the burning sensation stronger and stronger as the lubrication within evaporated. Gritting her teeth, she pulled harder, and the dildo reluctantly came out with a slimy 'schluck'... or at least, most of it did. She could see that patches of the rubber were missing, and the burning sensation inside her continued.

Tears in her eyes, she desperately dug her fingers into her pussy, reaching in to claw at the rubber-fragments that were now burning into her pussy-walls. The now-cooling rubber was adhering to the sensitive surface, and the pain was getting severe. Bit by bit, she pulled out fragments of half-melted rubber, wincing as they pulled at her flesh in the progress. To get at the deepest bits, she had to push nearly her whole hand inside -- a feat she probably couldn't have managed if it hadn't been for Dino's knot stretching her so widely so many times.

With the hilt of her hand pushing open her labia to a painful extent, she managed to reach the last few fragments of rubber stuck to her inside, and pulled them out, before collapsing on her bed, grimacing at the still-searing pain in her insides and panting from the exertion. As soon as she had regained her breath, she staggered to the bathroom and filled her aching pussy with cold water, changing it as it heated up, repeating for hours until the pain in her burns diminished.

For days afterwards, she eschewed sex, or even the use of her ordinary old vibrators, afraid to disturb the sores, even after the pain had faded entirely. But soon, lust overcame caution -- and, on top of that, Dino had gotten used to their daily sessions, and had started looking at her with those huge, pleading puppy-dog eyes. So finally, she decided to test the waters -- cautiously. A simple dildo slid easily inside her -- she was quite wet from accumulated horniness -- and she shivered as it touched the rough spots inside of her. It... didn't feel all that bad, actually. The burned areas were highly sensitive, but that wasn't such a bad thing. She moaned a bit as she smooth dildo slid across all the spots. She could get used to that feeling.

Minutes later, she had traded the dildo up for Dino's throbbing-hard cock, and was once again enjoying the sensation of mixed pain and pleasure that came from his knot stretching her wide-open while his head poked at her cervix. The burned patches amplified both pain and pleasure, and she found it a fair trade-off as her dog faithfully brought her to several shuddering and much-needed orgasms. The experiment with the hotwired dildo, she decided, had not been entirely unsuccessful.

That, of course, only reinforced her determination to create the battery-free überdildo she wanted. A single setback, she decided, would not discourage her. It HAD worked, after all, for a while. It was merely the combination of the heat, and the rubber's low melting-point that had caused problems. The heat itself hadn't really been a problem -- if anything, it had been pleasant, and if it hadn't been for the melting, it would've been a simple matter to just pull it out if it got too hot. And so, she set out to modify a different dildo -- a smooth, metallic vibrator made from aluminum -- after determining that the built-in insulation would be enough to prevent the additional current from being a problem. And with a melting-point of over 600 degrees Celsius, it wasn't likely to get stuck to her.

The now true-and-tried battery-box modifications were easily accomplished, and the plug-and-wire from the previous experiment was still good to go. After restraining herself for another couple of days to make sure that the old burn-sores wouldn't be overly sensitive to the vibrations and now-expected heat, she once again withdrew to her room to try out her invention. Like before, the motor activated without issue, and the powerful vibrations spread pleasingly up through her pussy, to her womb and beyond. Soon, she was lying back on her bed and panting as the orgasms began to rise.

The overworked vibration-engine within the dildo soon started spreading its heat throughout the length of the instrument of pleasure, making it first pleasantly warm, then unpleasantly warm -- but Hotaru barely noticed. By now, she was fully accustomed to pain and pleasure being part of a matched set, and if anything, the burning sensation added to her pleasure. Another few minutes, and the heat would have become sufficiently unpleasant that she would -- reluctantly -- have pulled the vibe out, to declare the experiment a PARTIAL success at least. But that never got a chance to happen.

The heat spreading through the rigid aluminum structure of the dildo was causing it to expand, and between the tightness of the girl's pussy, and the general rigidity of the metal, there was nowhere to expand to. Microscopic ripples appeared on the surface of the metal, unnoticed by even the sensitive tissue it was lodged in. Seconds later, the metal reached its breaking-point from internal stresses, and fragmented -- violently. Hotaru's third orgasm was thus suddenly and rudely interrupted by an intense, tearing pain, prompting a high-pitched scream from the girl.

With the dildo basically falling apart inside her, the battery-section, still wired to the wall-plug, separated from the rest and fell away, leaving several sharp fragments of extremely hot metal and engine-parts lodged deep inside her. Feeling panic rising within her along with the pain, Hotaru briefly trembled, then took a deep breath and cleared her head. She couldn't afford to panic right now. There was no way she'd be able to sort this out on her own, and she could feel that she was bleeding inside.

Somewhat unsteadily, she got to her feet, catching her breath as she felt the sharp fragments shifting inside of her, doing her best to keep her muscles loose -- if she really clamped down, there was no saying how much damage she would do to herself. Walking carefully, trailing occasional drops of blood, she left her room and headed downstairs, where her dad was working in his office. Somewhat predictably, HE panicked upon seeing his only daughter walk stark-naked into his room, dripping blood from her crotch. She explained to him, as calmly as she could manage, that she'd been worried about the number of batteries she'd been consuming, and had tried to connect a dildo to a power-socket, but it had gone wrong. With a few deep breaths, her dad had himself under control for now, and a minute later they were in the car on the way to the hospital.

Fortunately, the hospital happened to be where he worked -- as a surgeon, no less -- and he quickly got his daughter in to see a doctor he knew he could count on to keep his mouth shut. The metallic fragments were gingerly removed, and the minor lacerations they had caused were closed with bio-glue. One wound required two small stitches. The doctor took it in a stride, too, having seen people come in with stranger things stuck up various orifices, and in this case, the item at least looked like it had been designed to go there at SOME point. He'd also seen girls her age show up under similar -- if less-dramatic -- circumstances before, and several had shown up more than once. Telling her to stop because it wasn't safe wouldn't do much, he knew. So instead, he pulled the father -- his colleague, Bruce - aside, and suggested to him that if his daughter was going to play around with electronics, maybe he should get her some real training in it, so she could avoid blowing anything else up.

And Bruce took it to heart. Once his daughter was recovered and home again, he looked up an old friend of his who worked as an electrician, and told him that his child-prodigy daughter had gotten interested in electrical engineering, and if he'd please give her some tutoring so she wouldn't wind up accidentally electrocuting herself or anything like that. A few tax-free dollars changed hands, and an agreement was reached.

The electrician was soon impressed by how quickly his new student learned, but soon wound up scratching his head at the questions she asked. He'd tried to teach her how to do the usual stuff -- wiring up plugs, changing the voltage on lamps to make 'em last longer or shine brighter, dealing with fuse boxes and general electronics -- but she always seemed to be asking about alternate applications. Wanted to know how it would all scale down. When he told her how to control the speed of an electrical motor by altering the voltage, though, she suddenly perked up, and he started putting two and two together.

Finally, he just asked her straight-out if she was trying to learn how to modify sex-toys, and to his surprise -- he had expected her to be embarrassed -- she just said 'yes'. With a response like that, he couldn't do much more than shrug, mumble something about "They start early these days, I guess", and change the curriculum from 'General Electronics' to 'Vibrator-rewiring 101'. Now fully invested, his young pupil made rapid progress, and he was soon giving her instructions for advanced, long-term and flexible modifications, which she'd soon used to craft several heavily modified vibrators, designed to distribute heat and withstand increased pressure, while the vibration-engines themselves were tweaked to produce more powerful vibrations without simply relying on heightened voltage. A power-cord ending in a 'screw-in' cap allowed her to easily switch between several dildos without needing to have a bunch of additional cords lying around. A great success, by any standard, which she would go on to enjoy for many years to come...

In the meantime, her experimentations into the science of dildos had in no way decreased her enthusiasm for spending time with her dear Dino. If anything, their sessions were becoming more frequent. Dino was still a growing and flexible dog -- adjusting to the circumstances came natural to him. The fact that his 'circumstances' included frequent mating outside of normal heat-periods changed nothing -- it was still something his body strove to adjust to. His virility thus rose, bit by bit, to keep up with Hotaru's growing desire.

Soon, they were mating several times a day as a matter of course, and the loads he deposited -- directly into her womb, as always -- became more and more filling. She delighted in the sensation, feeling the hot cum filling her womb, and took pains to preserve it -- a suitably-long dildo, she found, did the trick nicely. With the dildo-head corking her womb, the cum would escape only slowly, and she was already used to wearing a dildo or a vibrator most of the time. Even to school, she kept one in, hidden safely behind her panties, with absorbent pads (meant for controlling a bodily function she had yet to develop) preventing her wetness from showing through them.

Thus, she spent most of her school-days with a load of Dino's cum lodged safely in her womb, enjoying the full feeling for hours on end, usually emptying herself in a toilet-stall during the lunch-break. That this habit could become a problem as Dino's sexual performance improved did not occur to her.

But, as Dino grew more and more able to deposit loads into her in rapid succession, it soon seemed a waste of time to her, to let his knot deflate in-between. She'd gotten much better at handling the ties -- he wasn't likely to drag her anywhere anymore, and she'd found that holding on to his tail as they stood ass-to-ass kept him still. But, it still took half an hour or more before he could get loose, and often it wasn't long before he came around for another ride. So, she decided, better to be efficient about it. After one mating, she held on to his front legs, refusing to let him jump off as he normally would, and he quickly caught the hint.

After ten minutes of maintaining the tie that way, Dino started moving inside her again, and she was delighted to feel the orgasms begin to roll again, blanking her mind for the half-hour ride to follow, before her womb had another load of thin doggy-cum dumped into it, stretching it more than ever before -- but not unpleasantly so, she decided. The pressure and warmth inside her, which she'd grown to enjoy so much, was simply stronger and better now.

With a bit more experimentation, she soon found that if she didn't suck Dino off beforehand, she could get 3 full rides out of him before he tired. Doing that, of course, meant spending several hours tied together as he fucked her, came, rested, fucked her again, came, rested, and so on, before finally spending a half-hour or more just being tied to her. The pressure of 3 full loads in her womb was enough to be painful, but at that point, enough cum would usually have filtered through the tight seals that Dino provided to make it endurable. And, yes, enjoyable as well, to a girl who was gradually developing a definite masochistic streak.

The problem did not arise until one morning, when she woke up quite early, and decided that she had enough time to go for a multi-tie with Dino before school. Normally, their mornings were too busy for more than a quick blowjob-fuck-cleaning session, but she had wanted, for a while, to keep one of his multi-loads inside of her when she went to school. Some cum-leakage would probably be inevitable, but the pads she was wearing to hide her near-constant wetness would take care of that, she figured.

Initially, it was no problem. She sat through an otherwise-boring math-lesson practically basking in the sensations radiating from her stretched-out womb -- math, strangely enough, was one thing she'd never really been able to pick up on, despite her prodigious intelligence, and having something to distract her from it was a blessing. By the next lesson, however, she'd started feeling an odd pressure in her groin. Sitting up with such a load was harder, apparently, than just lazing around with Dino while enjoying it. Still, she was determined to keep the load inside her 'till lunch, as she always did. And despite the pressure she was feeling, there was no way it could escape -- the dildo was keeping her womb sealed tightly.

Though, perhaps it was better to make sure... if she leaned forwards a bit, she could rest the dildo's base against the hard wooden seat of her chair, and push it up good and hard, ensuring that nothing leaked from her cum-filled womb. And hey, it'd make her look more attentive, too. Suddenly eager for the feeling of having the dildo's head pushed harder into the mouth of her cervix -- and feeling one of those little shivers of secret delight at all the naughty things she could do, right there I the classroom, without the teachers or any of the students being any the wiser -- she spread her legs a bit and leaned forwards to put pressure on the dildo.

Suddenly, she felt the pressure shifting, and something gurgling inside her. A momentary jab of pain went through her groin, and she felt herself suddenly lose control of her bladder. The strong stream of piss soaked through the absorbent pad instantly, and splattered -- noisily -- across the classroom floor. Instantly, every eye in the classroom was on her, and giggles at her humiliation could already be heard rising from several corners.

Mortified, she broke down in tears, and barely noticed as the teacher grabbed her and dragged her from the classroom, where the scattered giggles were quickly turning into roars of laughter. She'd skipped several grades already, and her classmates generally looked down on her for being a 'kid' who didn't belong in their grade -- mixed with jealousy at the fact that she was doing better than almost all of them at most subjects. To see her so humiliated, and particularly in a way that so beautifully underlined their perception of her as being too young for their class, delighted them to no end.

Soon, however, she found herself pushed into the girls' bathroom, being curtly told to clean herself up by her somewhat-flustered teacher. Sniffling, she cleaned herself up as best she could, draining her full womb into the toilet in the process, and disposing of the soaked-through pad. With her composure gradually returning, she tried her best to compose a decent story to tell the teacher, but she was somewhat hamstrung by the fact that she really didn't know what had happened. In the end, she settled for falling back on flattery -- a tactics she'd found to be generally effective on grown-ups.

After leaving the bathroom, she cutely told the teacher that she'd been holding it in because she didn't want to miss out on the FASCINATING lecture she'd been giving, and sure enough, the teacher's expression quickly softened. She was cautioned about doing so again, and warned that she could end up hurting herself if she did. Then, as an afterthought, the teacher sent her home, with a worried look towards the riotous classroom she'd just left. She even told Hotaru to wait outside while she fetched her school-bag and jacket, so she wouldn't have to face the class again so soon after her humiliation.

Back home, she comforted herself with Dino's company until her dad came home. When she gave him the letter she'd been given to take home, his expression clearly stated that he strongly suspected that there was more to it, and when he asked, she didn't shy away from telling him what she'd been doing that day. Blushing a bit at her candidness, he delicately tried to explain to her -- using terms like 'force against force', while carefully avoiding terms like 'cum' and 'piss' -- that her swollen uterus had been pushing hard against her bladder, and that the way she'd shifted her body had basically just put enough pressure there to make her lose control. He then cautioned her to make sure it didn't happen again. She wholeheartedly agreed.

Not that she was planning to give up on carrying multiple Dino-loads inside of her when she went outside, mind. Despite the unfortunate ending, she had enjoyed it way too much to give up so easily. Instead, she once again bent her creativity to finding a solution. Online research once again came to her rescue, and she found mention of people sticking small things inside their pee-holes, or 'urethras' as she knew they were technically called -- being a prodigy living in the same house as a surgeon, she'd picked up a lot about anatomy even before she started her research into sexuality.

These 'urethral insertions' apparently served a variety of purposes, including controlling peeing. Various instruments and devices were available for the purposes, and she briefly toyed with the idea of trying to build something herself -- but the mishap with the dildos was still clear in her mind, and the thought of something similar happening to her urethra made her shiver. And so, she spent a healthy chunk of her allowance to buy a nifty little device from an online store -- a thin, hollow rod designed to be inserted through the urethra, all the way into the bladder, and then stay there.

While waiting for it to arrive, she started her preparations by experimenting with her pee-hole a bit. She'd found mention of people using the pee-hole for pleasure, too -- thrusting small vibrators into it and such -- but she suspected that she was still too young for such things. Nonetheless, it told her that there was potential there. Using thin plastic rods, cannibalized from pens and then carefully cleaned and sterilized, she tested her young urethra and found that, while somewhat unpleasant, stretching it out a bit wasn't more than she could handle. The burning sensation was actually kind of nice, in a way. Soon, she was testing the tiny hole with the tip of her little finger, though she couldn't even manage to insert it to the first joint...

By the time the device she'd ordered arrived, she felt that she was ready, however. It was fairly complex, but suited her needs. After the necessary sterilization and adding a bit of lubrication, she got to work, pushing the thin rod with the tiny bulb at the end up through her urethra, concentrating on relaxing her muscles there, until she finally popped the end of it through to the bladder. Then, she carefully turned a screw on the front -- the bit still sticking out of her pee-hole -- causing the tiny bulb at the other end to slowly open, spreading until it was far too wide to pass through the tiny hole again. A rubber circle below it was, in the process, forced down to seal the bladder's sphincter tight, so that not a drop could escape.

Now, she had complete control over her bladder once more. A small valve on the front could be turned to let the pee through, and the rod itself was made from hard rubber -- bendy enough that it wouldn't cause problems when Dino's knot swelled right below it. And the slight pressure on her urethra and bladder was really quite pleasant, she decided.

From then on, she wore it almost all the time, only taking it out to sleep. Later on, she bought more devices of similar purpose, to have some to change between, but the first one remained a faithful go-to pee-stopped for a long time. With her bladder safely corked, she was soon carrying three loads of doggy-cum to school inside her womb more often than not, and as she felt the warm presence inside her, the occasional giggles and glances of her classmates seemed unimportant and beneath notice.

It was some time after that, during the summer vacation, that she was first sent off to stay on her uncle's farm over the holidays. It was a sizeable ranch, counting thousands of heads of livestock, and covering a huge area of land. She didn't particularly mind - Dino got to go with her -- and when she was there, she soon found many new and exciting things to occupy herself with. But that is a tale to be told later...

Two months later, she returned home in time for her 8th birthday, a sore but happy young girl. The day itself was enjoyable -- she spent quite a bit of it 'celebrating' with Dino - but about three weeks later, things took a turn for the worse. Her dad pulled her aside and told her that he had asked his girlfriend, Janet, whom he'd been dating for over 3 years, to marry him, and she'd accepted. She and her 3 children, from her previous marriage, would soon be moving into the house with them.

That, of course, meant that she would have to 'behave'. It wouldn't do for Janet, or her children, to find out what she'd been doing with Dino, or any of the other stuff. She would have to share a room with Janet's oldest daughter, too, so she would have to hide all the dildos and other toys as well. All of it would have to stop.

Hotaru was crushed. She had never really liked Janet, more out of jealousy than anything else, and being forced to stop having sex because of her didn't make things better. But, on the other hand, she loved her daddy -- she was his little princess, and she was terrified that he would hate her if she messed up his new marriage. With a heavy heart, all of her toys -- including the home-made dildos she was so proud of -- were sealed in a box and hidden in the garage, while she did her best to teach Dino to stop jumping at her at every opportunity. She kept screwing him, though, right up to the last moment, wanting to spend as much time as possible before they had to stop.

The next months were sheer hell for her. Dino had to stay out in the kennel most of the time, 'cuz her dad was afraid that he'd 'forget' to keep his paws off of her if he spent all his time in the room she now shared with one of her stepsisters -- a girl one year older than her, but infinitely less mature. Dino's pleading eyes still seemed to follow her everywhere, however, and she soon took to walking him through a nearby, heavily-overgrown park, where out-of-control shrubbery had left several benches isolated and invisible from the main paths.

In those invisible spots, she'd do her best to please Dino with her mouth and throat, hungrily devouring his loads -- gods, had she ever missed that taste -- but not daring to let him mount her. If someone came near, she needed to be able to hide what she was doing quickly, and that was hard when you were knotted together for half an hour or more. Still, she did what she could to ease Dino's troubles, hungrily devouring his cock, often several times in a row. He had gotten used to cumming half a dozen times a day, and anything less left him feeling miserable -- and she couldn't stand to see that. She usually returned from the park with a pleasantly full belly, which she didn't mind, though her new 'mother' had expressed some concern about how little appetite she seemed to have at meals.

She tried to make the best of it, using the opportunity to refine her oral techniques, practicing 'deepthroating', or training the endurance of her tongue. Soon she could give a full oral treatment, licking Dino's dangling testicles, caressing his swollen knot, the length of his bright-red shaft, and the sensitive head, again and again, without tiring. But she knew that it wasn't as good as a proper fucking for him. She'd tried to position her head so that he could fuck her mouth, and he'd seemed to enjoy that, but there was no way he could 'knot' her like that, so it was still ultimately unfulfilling.

Also, there was the slight detail of her not having an orgasm for months. She'd gotten so accustomed to powerful vibrators and big, hot doggy-dicks that she found it entirely impossible to get off on her own fingers, or even Dino's tongue, however enthusiastically he tried. She needed more, but there was no way to stealthily smuggle a vibrator out of the house. After 3 months of that, she was getting to the point where she was tempted to just ride a high-powered vibrator to a shuddering orgasm in front of her whole family, or to just let Dino mount her in the back yard, uncaring of who might see her.

In an attempt to control her growing desires, she experimented with letting Dino ride her, bent over one of the park's hidden benches, while preventing him from knotting. It was a fairly simple matter of blowing him first, and then letting him mount her before he had a chance to calm down, ensuring that his knot remained too large to enter her. However, while pleasurable, it still wasn't quite enough to get her to an orgasm - Dino, on the other hand, enjoyed it enough to get his rocks off, so she let him do it several more times. He wasn't deep enough to spray it straight into her womb, but still, the feeling of his warm cum spreading through her pussy was at least somewhat enjoyable, and the repeated pounding of his knot against her pussy-lips left them pleasantly red and puffed-up.

The very next day, to her surprise, her dad told her that since she'd been such a good girl lately, he'd take her to the piercing-parlor in the mall, and she could get her ears pierced like she'd been talking about for a while. Janet and her kids would be tagging along too. Happy and eager, she was halfway out the door when her dad said something that nearly made her stumble -- in addition to her ears, she could have one other thing pierced, whatever she liked.

She thought about that statement all the way there. She'd continued to look at and read porn online -- despite her growing family, she was still able to get a bit of privacy when she was on the computer -- and had learned a few things about 'intimate' piercings, most of which were used for decoration, but some that could be used for heightened pleasure. A little while earlier, she'd talked to her dad about it, in a rare, private time, to confirm with him something she'd read in a story on the internet. He'd confirmed that piercing the clit, while difficult and rarely done due to the pain involved, was possible, and could cause heightened pleasure by forcing the clitoris to remain exposed from under the clitoral hood, thus leading to increased sensitivity -- for better or worse.

She wasn't worried about the pain, though. Honestly, she was so horny by now that she'd welcome ANY strong sensation in her neglected privates. And he HAD said 'whatever she liked'. When they got to the piercing-parlor, she pulled him aside, and asked, a bit hesitantly, if she could have her clit pierced, like they'd talked about earlier. He gave her a lifted eyebrow and answered that, if she still thought it was a good idea after she'd gotten her ears done, then he'd try to arrange it. She grinned at him happily, and accepted his deal. It was only afterwards that she realized, the rest of the family was there too. What would THEY think of her getting a piercing like that? Well, if dad wasn't concerned with it, then she certainly wasn't either.

The ear-piercings were completed quickly and easily -- she barely registered the pain as noteworthy, a fact that the piercer seemed somewhat surprised about. With a pair of new rings dangling from her ears, she glanced at her father, and simply nodded. He returned the nod, and pulled the piercer aside, talking to him in a low voice. The young man seemed shocked at what he heard, but after Bruce had talked to him for a minute, and handed him a pair of large bills, he nodded, somewhat hesitantly. Gingerly, he approached her, seeming rather unsure of himself, and asked her if there was anything else she wanted done while she was there. She grinned at him, nodded, and pointed down at her groin while spreading her legs, flashing him a bit of panty-action at the same time.

The young man gulped, scratched his head, and then shrugged with a resigned look on his face, pointing her towards the back. "We do those kinds of piercings in here." Soon, she was seated on a different chair, one designed to keep her legs parted and give easy access to the groin. The young man had had to do some major adjustment on it to make it fit her small frame, not made easier by the fact that she'd dropped her panties as soon as they stepped inside. Her pussy-lips were still red and slightly stretched-open from last night, and the sight of it was clearly making the young piercer somewhat flustered. Hopefully, it wouldn't make his hands shake.

As the piercer readied his tools, she noticed that the rest of her family was crowded at the door, staring. The kids were pointing, whispering to each other -- she could still hear them, though. The girls couldn't understand why her pussy looked so... open. Virgins, both of them, obviously. The boy just thought it was neat seeing a real live pussy like that, even if it belonged to his stepsister. Strangely, though, Janet - her step-mom -- wasn't saying anything. She was just... smiling, in an odd, satisfied sort of way.

The piercing, predictably, hurt like hell, but as a shock of agony ran up her spine, it was all she could do to keep from orgasming violently in front of her entire family, and one increasingly red-faced piercer. A simple ring was put through the new hole, preventing her clitoral hood from closing again, ensuring that for the rest of her life, every time her panties rubbed across her crotch -- or the wind caressed her exposed genitals -- she would feel shivers of pleasure coursing through her body.

That night, after driving home with all her adopted siblings' eyes on her (and not caring one whit), another surprise waited. Her father was taking Janet out for a nice dinner, and left them in the care of a local babysitter -- an old lady of the 'strict, catholic, conservative and wrinkled' school of child-care, who -- despite her rather grating opinions -- had apparently been told that while the rest of the children required watching, she needn't worry about the smallest of the girls (Hotaru wasn't the youngest, but thanks to her half-asian frame, she WAS the smallest, by a decent margin), and to just let her do her thing. The nanny had apparently been given the whole 'budding child prodigy' song-and-dance, and gently patted Hotaru on the head, telling her to go do her 'research', before settling down in the TV-room with a Golden Girls marathon, curtly instructing her step-siblings not to bother her.

It was an opportunity too good to be passed up. Once she was certain that the old biddy was fully absorbed in her terrible taste in television, she snuck out to the kennel, let Dino out and -- after cautioning him to be quiet -- led him up the stairs to her for-now private room. Breathing hard already, she stripped off her clothing in a rush, and threw herself across the bed, her pussy drooling thickly in expectation.

Dino, who had clearly been waiting for this as much as she had, was on her in a flash, his rapidly swelling dick finding her pussy with practiced ease -- despite the months that had passed, he hadn't lost his touch. Feeling his hard and hot cock pushing into her all the way, the cock-head spearing into her womb even harder than before (he had grown a bit over the months), she was overcome with pleasure. As she felt her exposed clit tingle below, the new ring dangling in the still-fresh wound, she only just barely managed to grab a pillow and clamp it over her face before screaming in a world-shattering orgasm.

They spent the entire night tied together as Dino released load after load into her, beating his own record, and stretching out her long-neglected womb with 4 full loads of hot, thin, doggy-cum. She had lost count of the orgasms before the first load was even delivered, and as far as she was concerned, the whole 4½ hours might as well have been one, long orgasm. Her throat was soar and her voice was hoarse from screaming into the pillow, but she couldn't have been happier. The stretchy feeling of the four loads in her womb was particularly delightful, particularly coupled with the pressure that Dino's growing dick-head was putting on her cervix. She dearly wished that she could just keep it inside of her for the next day or so, to wallow in that delicious feeling... but she knew there was no way that could happen.

Already, she needed to break off the pleasurable evening. She could see her bedside clock from where she was kneeling with Dino on top of her -- soon, dad and Janet would be home, and her stepsister would invade her room once more. Gently, she pushed at Dino's legs, signaling that he should get off, assuming the ass-to-ass tie-position that always meant an end to their sessions. Feeling the cum still flowing around in her belly -- slightly distended from the internal pressure -- she felt sad to have to simply release it all into the toilet already.

As her eyes lazily moved across the room, however, she spotted something -- a bowl that she'd taken up to her room that morning, to eat her cereal while studying. She'd forgotten to take it down again. She licked her lips, reaching a quick decision. 20 minutes later, when Dino's knot had deflated enough that he was able to pull out -- sending a pleasant shiver through her as her labia were briefly stretched -- she quickly staggered to her feet, barely able to keep her balance after so many hours of fucking, and grabbed the bowl, before kneeling down to slip her head under Dino's hindquarters for the usual post-coital cleaning.

As the cum began to leak from her now-unstoppered pussy, she placed the bowl under it, and collected it all there - 4 loads of Dino's seed, mixed with a fair bit of her own pussy-juices. She cleaned his cock carefully with her lips and tongue, reveling in the taste, knowing that there was more to come. When she was satisfied with the cleaning, she bunched her stomach-muscles a bit, squeezing what was left of his loads out of her womb. Finally, she removed the bowl and sat down to look at the result. A heaping, still-hot load of delicious doggy cum. The breakfast of champions.

With eagerness, she put the bowl to her lips, and drank down the fruits of their lovemaking, letting it all run over her tongue, reveling in the taste of their mixed juices. Not just for the taste itself -- though that bittersweet-yet-salty tang WAS delightful -- but also for what it represented. Their mixed essences. Their togetherness. Their separation had made it increasingly clear to her that Dino was more than just a convenient lover to her -- he mattered to her. Even when it didn't bring HER pleasure, she still wanted to fuck him, just to help get HIM off. She still wasn't sure what the implications were, exactly, but she knew she didn't want to go this long without having him inside her again.

Fortunately, she didn't have to. Over the next few months, it seemed that opportunities presented themselves with delightful frequency. There were more evenings where they were left in the care of the baby-sitter, who was happy to leave her alone to do her 'genius work' unbothered by her siblings. But there also seemed to be a lot of occasions where her step-siblings just settled down to do something downstairs, in a way that made it clear that they'd be at it for hours, giving her an opportunity to sneak Dino upstairs for a quickie. A 'quickie', in this context, being a 10-minute blowjob, a half-hour fuck, and at least half an hour of delightful knotting. Nobody ever wandered in on her, nor was there even any 'close misses', and so she grew bolder, taking Dino for several rides in a session, almost like old times.

Something new happened too, a while later. It was summer again, some time before she'd turn 9, and she was tanning alone in the back garden -- the rest of the family had escaped the heat inside, and she was lying there alone, wearing a tiny bikini to minimize tan-lines. The heat was making her drowsy, and after making sure that the shade she was in wasn't going to move away from her anytime soon, she allowed herself to drift off into a half-sleep.

As her eyes closed behind her sunglasses, Dino - who had been let out of the kennel to frolic in the good weather -- quietly padded into the back yard. It had been a few days since the last time Hotaru had taken him up to her room, and he was starting to feel a certain... pressure, again. And there she was, lying splayed-out on a blanket, practically naked. Cautiously, he approached her, letting his eyes sweep the area while his nose sniffed the air for any signs of the presence of others. He knew that she didn't want him to show his affections when they weren't alone. But neither his eyes nor his nose found any trace of a current presence -- merely the tracks of those who had recently vacated the premises.

Walking up behind her, panting in the heat, he was happy to see that she made no sign to wave him off. Granted, she didn't make any signs at all, but he wanted to take the initiative for once -- he missed that from the old days, just prodding her when he felt horny, and watching her obediently kneel to receive his attention. Now, she was a bit low to the ground right now, but he'd had a few encounters with a poodle bitch down the street, and felt that he was up for the challenge. More problematic was the cloth draped across her crotch. Still, it looked... flimsy.

With an urge rising in his loins, he decided not to hesitate any further. His fangs closed around the tiny, tie-on bikini, and ripped it from her body in one yank. The sensation stirred Hotaru awake, but not fully -- she blinked her eyes behind the sunglasses, still half-caught in a dream, trying to figure out what was going on. Dino wasn't about to give her any time, though. In a jump, he was on her, haunches thrusting low in search of an orifice. Now, in the past few years, he'd learned how to find a human's vagina -- lower than he'd usually search -- but the angle he was now moving at made that impossible. Instead, like he had done the first few times, he found her asshole.

That hole, however, had grown quite a bit since then. Since reading about anal sex, Hotaru had experimented with it, sticking nothing bigger than a finger inside before deciding that she'd wait 'till she was at least 11 before trying real anal sex -- but still, the years she'd grown and those occasional prodding had primed her, just a bit. Just enough. As Dino's thrusting grew more insistent, and the half-asleep Hotaru failed to correct his aim, his tapered, self-lubricated cock-head found purchase at last, and triumphantly, he thrust forwards.

Only about half of his still-swelling cock managed to invade her virgin-tight, eight-year-old asshole, with the rest being stopped at her stretched-to-the-bursting-point sphincter. The shock and pain of such an entry would have normally stirred a person fully awake, but Hotaru had -- perhaps unsurprising -- been dreaming about her first mating with Dino, and the sudden pain of stretching, the large, hot intrusion, it all fit into her dream quite well. Thus, even as Dino began to thrust, carefully but still energetically, she was still fumbling to find the border between dream and reality.

By the time she was fully aware of what was going on, it was too late to do anything. She could feel him inside her, moving enthusiastically, and his paws were lying heavily on her shoulders. There was no way she could force him off when he was clearly enjoying himself so much. Even as she felt the pain radiating out from her stretched-open asshole, she resolved to set to work on stretching herself out down there, not waiting any further. If Dino was so eager for anal sex, she'd oblige -- even if she had to go through some painful training for it, it'd be worth it to make him happy.

Ever since their 'reunion' on the evening after she'd gotten her piercings, she'd started to realize that she thought of him as more than a convenient sex-partner, or indeed a loyal dog. While she had often let him lick her about the face, even before they first had sex, she now took relish in letting his tongue explore her mouth, sucking on it, felling the intimacy of it. In her mind, it had become less of a 'puppy licking', and more of an intimate kiss. She still didn't fully understand, but she was gradually starting to face the fact that she loved Dino, and that she'd do just about anything to make him happy.

And for now, he certainly seemed happy with her tight, pre-teen asshole. After just 10 minutes of awkwardly angled by nonetheless furious thrusting, he came -- spraying his seed deep into her intestines with his customary forcefulness. If he'd enjoyed it that much with only half his dick inside... she definitely needed to get all of him inside. And besides, even though it hurt, she kind of enjoyed the sensation of warmth spreading up inside her.

As Dino dismounted and wandered a bit away, apparently slightly confused by the fact that he wasn't attached to her by the genitals this time, she gradually started to realize just where she was, however. Suddenly on the edge of panic, she looked around the garden -- it was as empty as when she'd gone to sleep. She glanced towards the house, and briefly thought she saw something moving in one of the windows... but that could just be the slight breeze toying with one of the curtains.

Still, as she tied her bikini back on and hurried inside to empty her colon before it started to drip out and stain the bottoms, she couldn't help but wonder if someone had been covertly watching her from the house. Her father was at work, so it couldn't have been him, though. Still, as she walked through the house, nobody said anything. She caught a few shifty looks from her stepsisters, but really, that could just be a reaction to her somewhat-daring bikini.

But Hotaru was no fool, far from it. She'd picked up a lot of skills already, and she was getting pretty good at reading people's body-language. From the way her step-siblings acted, and the simple fact that none of them had randomly walked in on her yet, she started to suspect that something was going on... that they knew, or at least suspected, if not the truth, then at least SOMETHING. And she also kept catching her stepmother giving her odd glances. It wasn't enough for certainty, but it sure SEEMED like everybody was going out of their way to give her some space with Dino. She also wondered if her dad -- who had known about her and Dino since shortly after he started dating Janet - would really have concealed that part of her life from his new wife. It didn't really fit with his general openness.

It wasn't until her ninth birthday, however, that she gained surety. After nearly a year of first abstinence, then sneaking about, her family suddenly gathered around her, and straight-up told her that they already knew. Janet had been told about her 'activities' just two months after she'd started dating Bruce, and the other kids had been told about their new sister's 'peculiarities' shortly after she'd gotten the piercing. They knew about the dildos, and Dino, and everything.

It was only later that she'd feel anger over having been put through all that trouble without reason. For now, she was just relieved -- that she would not need to hide anymore, that she could get all her excellent dildos out of storage, that she could start going to school with her womb stretched open by several loads of doggy-cum again. And being able to chat with her siblings about it all was fun, too. One of them asked where she'd gotten the idea for the clit-piercing, and she showed them her original source of inspiration -- a story she'd found on the internet.

They were too embarrassed to do more than glance at it, but they immediately noticed that it was essentially about a young girl -- just like her -- who had a relationship with her dog, as well as her parents. That, of course, led them to wonder why -- after everything she'd done -- she'd never tried to have sex with a human...

A bit hesitantly, she admitted that she was nervous about that. She'd watched quite a bit of human-on-human porn too, but in most of them, the guy had a HUGE dick, much bigger than Dino's, and she was sure she'd get torn open by something that size. She'd found out by now, of course, that most men wasn't that big, but the idea of it still made her nervous. She wanted her first time with a human to be with someone she trusted, and she also wanted it to mean something. And, really, the only man she trusted like that was her father...

She blushed as she said that. It had crossed her mind a few times before. Her father was still a young and handsome man, and she'd seen his dick when they used to bathe together -- he was big, but no bigger than she was sure she could handle it. And she cared for him deeply -- for helping her out with all her problems, and for not hating her or locking her up in some mental hospital after he found out about her and Dino. And the stories she'd read made it sound pretty nice.

The kids, amused by the growing number of similarities between her and the girl in the story, started badgering their step-dad to 'give it a try'. Bruce smiled, somewhat shakily, at his new wife, but Janet just returned the smile broadly. The sexual appetites of her new stepdaughter had interested her since the beginning. Whispering in her husband's ear, she told him that she didn't mind him having a relationship with his daughter, as long as he promised never to do it without her permission... and she got to watch.

Taking a deep breath, he told his step-children to pipe down, put one arm around his wife and the other around his daughter, and walked them towards the master bedroom. They still called out after him, telling him to 'go for it' and 'show her what a MAN is like', but at least they were reasonably quiet about it.

As they walked towards the bedroom, Janet started questioning Hotaru about her knowledge of sexuality -- pregnancy, sexual development, responsible behavior and the like. She seemed genuinely interested in what Hotaru had gone through, what she'd tried, and how she'd done it. Hotaru's answers were halting at first -- partially due to her general nervousness, and partially because of the general dislike she'd nursed for Janet ever since she first appeared. But as she started to feel that Janet genuinely cared, her answers became more certain, and as they settled into the bedroom, they were basically chatting amiably.

Still, both Hotaru and Bruce were understandably nervous as they stripped naked and settled into bed together, made no better by Janet lying quietly beside them, smiling, and continuing her conversation with her stepdaughter bit by bit. By now, the subject had switched to general advice for dealing with human men -- the differences between a human cock and a doggy-dick, basically. She cautioned Hotaru about the size and sensitivity of the man's bulbous cock-head, even as the young girl leaned down to attempt a blowjob on her visibly nervous father.

Despite her bountiful experience with Dino, as well as her adventures on her uncle's farm, she wasn't really prepared for it. The knob seemed to fill her whole mouth, and no matter how careful she was, she couldn't seem to stop her teeth from scraping across it a little bit now and then -- each time causing her father to jump slightly. She tried to push it further back, but found the head too wide for her throat -- she'd manage to deepthroat Dino easily, several times already, but a human cock was entirely different... even if it wasn't quite as oversized as the ones she'd seen in pornos.

Finally, with a gasp, she released the still ramrod-stiff dick from her mouth, hoping that she'd at least given him SOME pleasure as she tongue-bathed the troublesome cock-head. At the very least, she'd gotten it thoroughly coated in saliva, which would help for the next part. The experience -- and the sage advice her step-mom had been giving -- had already given her some ideas for improving her oral technique -- she'd have to do some experimentation on some of her more 'realistic' dildos later.

For now, however, she was climbing onto her father's lap, as she'd done so many times when she was younger, but for very different reasons. His cock, hard as steel and shining with her spittle, was pointing straight towards the ceiling, and the size of it was making her slightly nervous. And, of course, the fact that it was her beloved daddy. She wanted to be good for him, to really thank him for everything he'd done for her -- for protecting and helping her while she was discovering herself. But she'd never tried a human before, and she'd really botched the blowjob. What if she was terrible?

"Don't worry, just relax..." Janet's soothing voice whispered in her ear. "It's not that different from what you've done with Dino. Just relax, and let the pleasure move you." Nodding, she took a deep breath, and settled herself down over his cock, using two fingers to part her labia. It entered with surprising ease -- she felt only the faintest twinge of stretching-pain, a sensation she'd long-since learned to relish. The shaft followed easily, as her nervousness evaporated and her juices began to flow strongly.

She got nearly all of him inside before the mushroom-shaped head hit her cervix. Even though that had been routinely stretched open by Dino - more and more so as the dog grew larger, with her young body unable to keep up -- the wider shape of the human cock-head once again became a barrier, and the hard tool would go no deeper. Still, with all but an inch of it inside, Hotaru was quite satisfied with her performance so far, and her dad's facial expression indicated a certain level of satisfaction as well...

Placing her hands on his shoulders, she briefly just sat there, enjoying the feeling of her first human cock. Then, she started riding it, pushing up and settling down -- slowly at first, in accordance with her stepmother's cautioning, then faster and harder as she got into the pace. The feeling of her daddy's cock-head hammering against her cervix only made her shiver in pleasure, and from the way he looked at her, he didn't find it entirely unpleasant either. Leaning forwards, while still riding him hard, she kissed him -- not in the sedate, daughterly way she'd done so many times before, but with the intensity and passion of a lover.

She did love him, after all -- more than she could express with words. And that, she decided, was why it felt so good -- not because he was human, but because he was DAD. It wasn't like on the farm -- she'd had lots of fun there, but when it hadn't been with Dino, it has just lacked a certain... spark. That spark was there, now. An emotional attachment. It wasn't just pure, bodily pleasure -- it was a deepening of their emotional bond. A new way to express their love for each other.

Awkward as they both were -- she because it was a new position and a new 'shape' to her, and he because he was worried about hurting his young daughter -- they still reached the peaks of pleasure. Several times she came, squeezing his shaft like a vice, panting into his mouth. The sheer tightness of her young snatch kept him from coming too quickly, though, practically pushing the sperm back down into his balls with every down-stroke. But finally, he came, gushing his thick cum directly into her uterus, like Dino had done so many times before.

Still hard as a rock, and now growing bolder with the realization of just how sturdy and experienced his daughter was, Bruce finally took charge. With a firm grasp on her midriff, he flipped them over to assume a classic missionary position, where he could freely allow his much-greater weight to thrust down into her. She gasped as he fucked her rapidly, using the added lubrication of the cum now leaking from her still-infertile womb to reach greater speeds than she had done while on top. He could feel his head hitting the mouth of her womb inside, sending small shivers of pain up through his spine -- but while she shivered as well, it seemed to be with pleasure.

Letting his instincts and emotions sweep away the uncertainties and doubts, he fucked her with wild abandon, pouring his love for her into every thrust. He understood what she had meant when she said that she wanted him to be her first human. It wasn't just some simple excitement at the taboo act of incest, but a genuine statement of trust and love -- one he could only return in one way.

He came three times that night -- as much as he'd ever managed since his teenage years -- but all good things must come to an end, and soon they were lying side-by-side in the bed, tired but happy as the cum slowly leaked from Hotaru's young pussy. Janet, who had watched them with fascination -- and barely hidden arousal -- soon resumed their earlier discussion, testing Hotaru's knowledge and understanding of the dangers of sex - STD's, genital infections, the general dangers of trying to take something too big or too long inside.

Perhaps a strange topic for pillow-talk, but Janet knew what she was doing -- she wanted to see if her stepdaughter was able to keep those dangers in mind, even while basking in the glow of pleasure. And she did not disappoint. Hotaru's snappy and well-supported answers soon convinced Janet that her daughter knew practically everything there was to know about the dangers of sex, and how to avoid them. Probably more than she, herself, knew.

Hotaru, meanwhile, learned something else, and equally important. Her stepmother cared about her, and worried about her, just like her real mother would have. She cared enough not to try and stop her from being herself, from making her own choices -- but worried enough to make sure that she knew what she was doing and how to stay safe while doing it. And, she reflected as she snuggled up to her exhausted father, she'd certainly demonstrated that she was willing to share her dad. As they chatted, the hatred she'd once felt for the woman she feared would steal her father's love away from her melted away, replaced with a genuine fondness. In the years to come, she would rarely think of Janet as anything less than her mother.

In the days and weeks that followed, Hotaru quickly returned to her old ways -- getting regularly fucked by Dino, using a dildo to keep in the cum while she went to school, wearing a stopper up her uterus to avoid pissing herself from the pressure of her sperm-packed womb. She still got weird looks from her step-siblings, and her room-mate was annoyed at the constant activities, but now that her secret was out, she didn't really care. (And, she figured, her stepsister's constant bellyaching might help convince her parents that she needed to have her own room again.)

Along with that, she was busily training her asshole, as she'd resolved earlier, and soon she was wearing a small butt-plug to school along with her filled womb. She also managed to convince her dad that she could handle some more piercings -- she'd had a few near-misses involving the dildo in her pussy nearly slipping out (which would have resulted in an uncontrollable deluge of cum in a very-not-private place), and the story that had first given her the clit-piercing idea had also provided her with a potential solution.

A short time later, after another trip to the piercing-parlor (and another large bill slipped to the same, young, flustered piercer), she came home with 4 small grommets inserted into her labia. A piece of fishing-line tied shoelace-style through them thereafter ensured that whatever she had in her pussy, STAYED in her pussy.

With the bonds of secrecy lifted, and new experiments paying off left and right -- she felt sure that she'd soon be able to allow Dino unrestricted access to her ass -- what restraint she had was gradually diminishing. She'd tried 'human sex' now, and while she wouldn't sleep with her father again for some time (the rule was that they could only do it if Janet gave her permission, and now that she'd acknowledged Janet as her mother, with equal rights to Bruce's love, she felt awkward making such a request), she still wanted to try more humans.

In fact, there were many things she wanted to try, and the stories and pictures she found on the internet provided her with a continuous and steady stream of inspiration for more things. And if it was possible, she wanted to try it. All of it. She was still only 9 years old -- she had a life ahead of her. Endless possibilities. And she wasn't about to wait around before grasping them...

But that is a story for a later time.

THE END (for now)

The tale of the firefly will continue - the next chapter will cover the visits she made to her uncle's farm at various points in her life, and the adventures she had there.