Knuckles’ Jewels- The Big Event (Chapter 7)
After Rouge’s baby shower, the gravid bat decided to truly give Knuckles a break from ballbusting. It was only fair for her male mate after the intense agony he endured from the other girls, as well as exposing the whole ‘testicle ownership’ to them. But also, Rouge had to refrain from kicking, punching, or any heavy physical activity, for she was entering the ninth month of pregnancy and could not risk starting the labor prematurely. 

And so, before the labor could naturally start, Knuckles and Rouge devoted their time to preparing for when the time came. To ready her psyche and body during the labor, Rouge retreated to the living room and watched the collection of Lamaze DVDs she got from Vanilla, as well as kegel exercises. Knuckles, meanwhile, did some small exercises of his own; testicular activities to steel his jewels for exceptional suffering they will endure when the bat’s labor began. And to further ready himself for that time, Knuckles ended up doing what he thought he’d never do, and squeezed and punched his own orbs.

It was exceptionally hard for the male to do at first; beating on his own sack to make the torment Rouge would deliver to them whilst she delivered his children more bearable. However, it was not due to a conscious desire to not harm his own goods so much as it was the involuntary instinct of all males not to consciously damage their own testicles. But after a short few days of this self-ballbusting, Knuckles managed to overcome that instinct and was able to land harsher blows to his goods and squeeze them ever harder. Not only that, but Knux found himself soon enjoying the harm he was giving his own treasure bag. 

The echidna was already warming up to the ballbustings a great deal, with the baby shower being just a tad overwhelming for him. But it was exhilarating for Knux to be the one to bust his balls for once, instead of Rouge, other girls, or through accident. He was in control for once, busting his balls his way, and boy did it feel good. It was also a good way for Knux to test his own strength: thanks to the indestructibility spell, he could punch his balls with all his might and not have to find a new ‘punching bag’ afterwards. And the squeezing really helped Knuckles improve his grip strength. And whenever he dug his ‘knuckle spikes’ deep into his massive fruit? He would be cumming a fountain if not for how his cock functioned, despite his balls feeling all sorts of hell. 

In the meantime of their respective activities, Knuckles and Rouge deliberated on where on Angel Island to birth the children. Both agreed to not have the birth within the house, the two feeling it not special enough for their first children (let alone the new echidnas). But Rouge, of course, desired the Master Emerald Altar, with herself giving birth right onto the M.E. itself. Or as an alternative, a cavern full of gems, which Rouge knew beforehand Angel Island had plenty of. However, Knuckles preferred for the new echidnas to be born in a specific location, one of the few areas of the original Knuckles Clan that survived up to the present day; the Hatchery Shrine.

As the name implied, the Hatchery Shrine was a sacred place wherein the echidnas of the Knuckles Clan placed their freshly laid eggs, which were then watched over by ‘Egg Maidens’ (a name Knuckles could no longer take seriously, thanks to Dr. Eggman). The shrine itself was located atop a cliff, which itself was the border between the tropical rainforest and craggy desert parts of Angel Island, and was the source of a waterfall that fed one of the rivers of the rainforest side. The place contained a fairly large statue in the middle; that of a naked female echidna (complete with full breasts and accurate vagina) carrying a few eggs while surrounded with echidna toddlers. And to protect the eggs from rain and harsh sunlight, a freestanding stone structure with a thin, flat roof that covered the area. 

Aside from the meaningfulness of having the new generation of echidnas to be born in a culturally significant spot of the echidnas, Knuckles felt the Hatchery Shrine was the most practical spot to give birth whilst having beautiful scenery. Rouge had second thoughts though, not only due to the lack of gems but the fact she’d have to do some hiking while in labor to get to the Hatchery Shrine. But after some thinking, she conceded to Knuckles’ decision, and did so with a devilish grin. 

Rouge expected her pregnancy to last for only a week after the baby shower before the labor started. But three weeks had passed since then and the bat only got a few slight hints of a contraction, but never resulted in labor. And so, one early morning, the sun not yet risen...

“Good morning, swol nuts.” Rouge whispered to Knuckles, and then yawned. 

“Heh!” Knuckles yawned. “Good morning, swole belly.” 

The bat placed a hand to her aforementioned belly and then sighed. “Nine whole months, and I still get surprised by how fat I’ve gotten…” Rouge got upright within the bed and stretched her arms and upper torso. 

“You’re not fat, hun.” Knuckles sat up and stretched as well. “You’re pregnant. Very big difference.” 

“Still, I’m used to having a thin build. Now I’m round with your babies.” Rouge got off the bed and went to admire the dark morning sky through the window. 

“True!” Knuckles joined with Rouge at the window and placed a hand to her baby-filled belly. “But this big belly makes you all the more attractive.” He leaned his head against Rouge’s. 

“Aw, thanks Knuckie.” The tan bat caressed the male’s massive blue seed makers. “I can say the same for your big blue balls.”

Knuckles quietly moaned at the feel of Rouge’s soft fingers fondle his swollen orbs, and his permanently erect cock hardened with excitement. He then glanced to Rouge’s crotch, which was obscured by her fully developed pregnant belly, and he could feel his balls begin to pulse.

“Oh~! Getting horny now?” Rouge gave Knuckles a teasing smile. “I know it’s been a while since you’ve gotten release.” 

“Heh, yeah…” The echidna lightly massaged his four penis heads. “Me and my boys have handled these last few months better than the last time. But it would be so nice to drill and flood your bat cave before the babies have to get out…" 

"Hm~! Well, seeing how I'm way overdue, and I still haven't gotten any serious contractions… I'm thinking we'll have to induce my labor. And what better way to do that than through sex?" 

Knuckles' moved his eyes to Rouge's own, with a sultry grin. "Just name the position and I'm on it." 

Rouge placed a finger to her chin and looked upward in thought. "How about the cowgirl? You'd love to feel the weight of my belly on you, wouldn't you?" 

"You know me too well!" 

Knuckles and Rouge moved to a room with comfortable flooring and the echidna lied down on his back. The ebony bat then straddled Knux in a kneeling position, her crotch on top of his balls and his dick right up against the front of her pussy. Rouge then lifted her waist, positioned her vulva above the echidna phallus, and inserted that four-pronged glory into her baby hole. The soon-to-be-parents made pleasured moans on joining together, and then Rouge began thrusting herself up and down. 

Knux always enjoyed being on the bottom during intercourse with Rouge, for she got to be the one to tire herself out with the thrusts and crouching while he got to relax on his back and let Rouge go wild on his cock. It helped that Knuckles was the sub in their relationship anyway, so the only time he would want to be on top is when impregnating Rouge, so gravity would help her womb take in more of his seed. And the weight of Rouge’s massive, gravid belly made this experience all the more blissful for Knux as it gave him a feel for all the echidnas within Rouge, which in turn made him look forward to when they would be born and he got to fill Rouge with new echidnas. Although the heaviness of Rouge’s pregnant belly would take away from the sex at points for Knuckles as she would drop down a bit too hard and fast, nearly knocking all the air out of his lungs from her belly landing on his. 

For Rouge, she of course felt just right as the top. It allowed the bat to continue dominating Knuckles and she did not mind the work out. The feeling of her gravid belly swaying up and down as she rode Knuckles’ four-headed beast was like nothing else. Rouge only wished she could bust Knuckles’ balls via smashing her pregnant belly down onto them, but she had already positioned herself to face Knux and could not risk any damage to the unborn babies. Besides, she will have her time to torture those orbs soon enough…  

Knuckles' testicles clenched up as his climax drew near, and he could feel all four of his reddened penis heads open up. All the male needed was Rouge’s permission for him to erupt his ball’s contents, the bat having unintentionally gained that much control over his genitalia. Said permission almost always came when Rouge reached her own climax, which both knew was imminent from her vagina’s increasing tightness.

However, before Rouge could actually orgasm, she felt a popping sensation within herself, which Knuckles could also hear, and a gush of fluids poured of her love tunnel. Right as that happened, Rouge gasped and halted her thrusting, then grasped at her gravidness. And Knuckles made a squirmed smile as the clear liquid splashed down onto his cock. 

“Whoa~! That was the most wet orgasm you ever done, babe! Feels lovely!” 

“That wasn’t an orgasm, Knuckie… My water just broke…” 

Knuckles was confused by the term, wondering how one could ‘break’ water. But then he quickly recalled what it meant. “You mean…?! 

“Y-Yep… These kids are finally ready to get out...!” Right after, Rouge bent down and clutched her belly with both hands with a long, pained groan. “And that must be the contractions…” 

Indeed, her pregnant belly began to contort and an aching pressure surged all over her vagina. Rouge groaned once more and stood up, pulling her pussy away from Knuckles’ cock in the process. The horny male was aghast to say the least. 

“Wha-?! We can’t end this now! All I needed was your permission to cu-!” 

Within a millisecond, Knux’s nads were stomped on with extreme force and pressed down flat as pancake by Rouge’s foot, the bat sporting an irritated face. “I can end it when I want to, Knucklehead! And I sure as fuck don’t want you to cum inside me when my whole crotch is entering a world of pain and our children are coming out! Besides, I didn’t get to come either…!” 

Knuckles’ legs twitched as his orbs were crushed, and that combined with the ‘blue ball effect’ made the echidna wheeze. “...Fair point…” Knux then sat up and looked up at Rouge, unable to stand up with her as she kept her foot planted firmly on his nuggets. “...Okay then… We should get moving to the Hatchery Shrine before the delivery… Think you can walk…?” 

Just then, another powerful contraction hit, which made Rouge press down ever harder on Knuckles’ gems with a contained shriek, and in turn made Knux groan with gritted teeth. “...The contractions seem to be cycling frequently, with each one more intense than the last…! But I can handle the hike.” The laboring bat removed her foot from the echid-nads and proceeded to grip them, each nut in each palm. “Especially with your balls in my palms!!” 

Knuckles grimaced as she squeezed his seeds as demonstration. “Urgh… Fair enough… In that case, I’ll go up ahead…” 

And so, the tan bat and red echidna left their house and headed for the Hatchery Shrine, with Knuckles taking lead while Rouge followed behind with his testicles in her grasp. Knux thought he would have gotten used to his scrotum getting stretched beyond their limits, but this time his testicles were being squeezed in each hand of Rouge’s as they walked and she held them apart at shoulder length, which was nothing short of uncomfortable. 

Although, for once, Knuckles could not say he was alone on that front for Rouge’s labor was truly agonizing. Due to the great amount of children she was carrying, Rouge’s contractions came fast and hard. And just as she felt, each contraction occurred faster and harder than the last. This torment she was enduring made Rouge all the more grateful that she made busting Knuckles’ balls a strict condition to her breeding new echidnas with him, for the pain was becoming equal to, if not greater, than that she would deliver to Knux’s testicles. And indeed, squeezing the ever-loving hell out of the organs responsible for her current suffering was all sorts of cathartic for her; especially during moments when the contractions got so intense that Rouge had to stop moving and crouch down, which in turn gave her the excuse to pull Knuckles back with his testicles and dig her nails into them.

After long, agonizing hours of hiking through the jungle and up craggy hills, the soon-to-be parents arrived at the Hatchery Shrine. The sun had fully risen by then, and morning neared its end, which left Knuckles and Rouge plenty of daylight to bring their children into the world. 

“Okay, we’re here…” Knuckles said with gritted teeth, as Rouge kept crushing his blue spuds. 

“Good!” she yelled with a fierce look, which was accentuated by the white fur on her head having become disheveled. “So, where in this place would you like me to deliver your kids?” 

“I guess the nests for the eggs would be most ideal.” Rouge squeezed his orbs again on a contraction’s passing, to which Knux winced heavily. “But you can birth them anywhere you find comfy!” 

Rouge looked to the aforementioned nests and studied them with analytic eyes. Afterwards, she shook her head. “They would be ideal for letting me birth in a comfortable and practical position. But they’re much too small for me to fit in! And have you looked inside them?” 

Knuckles looked within the nests and saw that the leaves and grass that were used to keep the echidna eggs warm and comforted had long since become dry and rotten, with some nests even having produced mushrooms from their rot. A blush appeared on the echidna’s cheeks as he realized that he should have replaced the nest’s contents with new stuff when they decided to have the babies be born in the Hatchery Shrine. Of course, such an effort would have been futile because, as Rouge had stated, the nests were much too small for her to properly birth within, considering they were sized for echidna eggs to incubate inside. 

Knuckles suddenly felt a huge spike of pain as Rouge squished down on his bollocks from another contraction. “If you don’t want these kids born onto the rough ground, you better get started on a new nest! Or just get some soft stuff below! I don’t care about standing or crouching up…!” 

Knuckles nodded and immediately looked around for foliage to make soft ground for his oncoming babies. Fortunately, he found a quick source of the stuff in the form of a few trees and overgrowth on the jungle-side of the cliff just outside the Hatchery Shrine. The echidna immediately went to gather the materials, but found himself tripping over as his scrotum was still held tight by Rouge, who stood in front of the hatchery statue in a pained stance. 

“Uh, Rouge? You mind letting go of my nuts? Or at least move with me so I can get the stuff we need?” 

“No way! Your balls are the one thing giving me any relief! And I’ve done enough moving!” 

Knux grumbled at his mate’s stubbornness. “Guess I’ll have to do this the hard way…” 

The crimson male took a deep breath and then trudged over to the trees and grass, stretching out his scrotum in the process. Knuckles grunted and groaned as he tugged against the pull of his sack and cords, all the while his laboring mate squeezed and mashed his huevos. As he made his way to the foliage, Knux made a mental note to owe Tikal big time for the indestructibility spell, and hoped that his loins would not get permanently stretched out… 

After reaching and collecting the leaves and grass, Knuckles returned by Rouge’s side, hastened by the pull of his testes, and rushedly made a flat nest for Rouge to birth on. On completion, Rouge quickly moved atop the flat pile of plucked plantation and squatted down with her crotch pointed forward. 

“Th-thanks, Knuckie. Sorry for making it more difficult than it had to be…” 

Another contraction came and made Rouge squeeze Knux’s orbs again with a pained wheeze. Knuckles made a pained cry of his own in response. 

“No problem… I enjoy a challenge every now and then…” 

“Well… Now I can deliver our firstborn… Cause feels like they’re coming out now…!” 

Knux’s eyes popped open and he instantly got onto the ground and looked at Rouge’s crotch to check the progress. Sure enough, Rouge’s entire genitalia had bulged from the arriving baby; her mons pubis became extra puffed, vulva increased in size, and her clitoris expanded. And her vagina started to spread open… 

Knuckles watched with awe as the bat’s tan pussy got wider and wider with each push she made in conjunction with the contractions. Rouge’s entire lower body quaked as she squeezed down in her birth canal, her thighs bulging from the stress of the labor and holding up her weight. All the while, her whole genital pulsed with pronounced beats.

“HEY!!!” Rouge shouted, and pierced her nails into Knux’s tenders. “If you’re going to be looking at my aching bits, could you at least tell me how it's coming along!? You know, can you see the head and shit?” 

“URGH! Right…!” Knuckles leaned in on her crotch and opened up her vulva. The air around Rouge’s laboring lips were warm on the pained echidna’s face, which soothed him enough to do his given task. “Okay… I think I see the head. Just starting to poke out of your vaginal opening.” 

“Good to know…” Rouge pressed down hard, and did the same to Knuckles’ stones. “God, why is it so hard to push?!” She tightened her vice grip on the echidna avocados. 

Knux shut his eyes tight and groaned from this. “Grrr…! This is literally your first time! I’m sure this will become second nature to you soon enough!” He opened his teary eyes back up and checked the firstborn’s head. “...At least newborn echidnas lack quills. You would not want that going down your tubes…” 

The birthing bat glared at her male mate and then looked at his balls that were tight in her hands. Suddenly, she grew a devious smile as an evil thought popped up, and then she swung those fruit into the sharp end of his quills. Knuckles’ toes curled and eyes twitched as Rouge pushed his balls into his own spikes, and then screamed to the sky with a high pitch. The bat then went from scowling in pain to smiling with laughter. 

“Can’t believe I never thought of doing that until now, haha! How did it feel to have your balls impaled by your own sharp quills?” 

Knuckles gasped as he tried to process his thoughts whilst the stinging pain lingered. “Like hitting a patch of spikes balls first… Only much worse cause those spikes are part of my body…” 

Rouge laughed harder, but then another contraction hit and her chortling turned to more agonized groans. Her grip on Knux’s eggs tightened ever harder, and the big-sacked echidna grunted alongside her. “Urgh… I was hoping laughter would mitigate the pain… But your kids are that strong…” 

“Be glad I’m sharing the pain with you…! Most women can’t say the same…” Knuckles resumed looking into Rouge’s brown pussy to check on the progress, and watched as the head slowly emerged from the vaginal opening with each push the bat made. 

Both new mother and father began to sweat heavily from the heat of the area combined with the strain of birthing and squeezed balls respectively. And as the firstborn’s head stretched out Rouge’s hole, the more agonizing the experience became for both, as Rouge implemented other ways to punish his balls in addition to squeezing, as her tight vagina was getting stretched more than she thought capable.

By the time the baby was fully crowning, an hour had passed. And Rouge had started stretching Knux’s individual testicles to make him feel the maximum stretch her pearl was experiencing… “Ooooohhh~! Remind me to thank Tikal for applying that indestructibility spell to my womanhood~! I think it would have been torn at this point…!” 

“Uuuurrrgghh~! Maybe if this one’s a girl, we can name her after Tikal…!” 

“Mmmmnn~! I don’t know… ‘Fathead’ seems more appropriate to me…” 

“Rouge!!!” 

“I’m kidding! I wouldn’t dare give our children such names.” She pushed with a groan. “I actually kind of like this feeling… It hurts like hell, but something about it I find pleasurable…” 

Knuckles groaned in turn with another squish to his man goods. “Heh, I know exactly what you mean…” 

He took a good look at Rouge’s whole crotch and saw that her mons pubis had turned blue from the maximum stretching they endured. He then glanced over to his own blued up balls and grinned. The male also appreciated the sight of Rouge’s sweat traveling down her many curves, particularly the one resulted of his own handiwork, as well as the beads dripping around her pussy. And the female appreciated the sweat that slid around his sack. One contraction later, though, Rouge got up to widen her stance and then squatted back down with both hands on the ground: Knuckles’ testicles pressed onto the ground. 

“Okay, brace yourself, Knuckie! Because this is gonna hurt for both of us!” 

Rouge mustered up all her vaginal strength and made one huge push; the woman bellowed to the sky and pressed down on Knux’s orbs with her fingers digging in, which caused Knuckles to cry out with her. Their combined screams could be heard across the jungle and craggy desert of Angel Island, and many a Critter, Chao, and Wisp wandered over to the Hatchery Shrine to fee what the noise was about.

As those small creatures made their way over to the howling couple, Rouge tried to get her firstborn out with that single mighty push. However, she found herself having to exert even more force and do more pushes, as the infant’s echidna snout slowed its advancement into the world. The bat growled at this delayed finish and took out her frustration via placing Knuckles’ testicles underfoot and crushing them flat. 

Soon enough, the baby’s snout emerged from Rouge’s tunnel, and Knuckles quickly laid out his hands underneath as the rest of the baby came out shortly after. Now fully exposed to the outside world, Knuckles and Rouge’s firstborn could be seen in full: a small echidna, about the size of Knux’s palms, whose eyes were shut tight and fully tan, not yet having fur and quills to cover up the skin. Tears flowed down Knuckles’ face as he marveled at his first child; at last, he became a father, and at last he was no longer the last living echidna. 

After coughing up some fluids, the baby began to cry, which prompted the new father to cuddle it for calmness when a heel-pronounced press to his balls brought his attention to Rouge, who looked down at him with teary eyes of her own. 

“Hey! Mind showing me our first baby? Can’t see from under this massive belly you gave me…” 

“Oh…! Sorry…” Knuckles lifted the newborn up to its mother. “It’s a beautiful baby girl.” 

Rouge sat down from her squatting, which allowed Knux’s testes to rebound back to their proper position, and she held up her hands, to which Knuckles gently handed their infant daughter to her. “Oh my…!” Rouge proceeded to cradle her crying baby in her arms. “She’s… She’s so precious…” 

Knux placed a hand to Rouge’s shoulder. “Yeah… Great job, babe…” 

“Thanks, stud… Of course, your balls helped out a lot.” Both chuckled a bit. “So, shall we truly name this one Tikal, or were you not that serious?” 

“I was somewhat serious, hehe. I guess it depends on if Tikal approves or not.” 

“Well…” Rouge placed their firstborn daughter onto the softened ground. “We got plenty of time to think about that…” She then placed both hands under her thighs to pull them back and apart. “Cause we got tons more kids coming out. And I think the next one is starting to poke out…” 

Rouge tried to get back up into her squatting position, but the incredible pregnant weight combined with the strain of labor and birth made it too hard for her. 

“Need my help?” Knuckles asked with sincerity. 

Rouge shook her head. “Urgh, forget it! The baby is coming up too fast, and we bats are used to fighting against gravity.” She propped herself into a more comfortable position on back and then smiled at the well-endowed male. “Besides, this position frees my feet for this…” 

“For what?” 

Within an instant, Rouge shot her foot at Knuckles’ free hanging gems. Knuckles recoiled as his sack swung back and forth like a freshly stricken punching bag. “Oh… That…” The male echidna staggered as his balance was thrown off from the sudden and powerful attack. “W-would you like me to keep sta-standing… Or lie down opposite to you…?” 

Rouge grunted from the pressure. “As much as I love swinging balls… Get on your back…!” 

With that, Knuckles willingly fell onto his ass and positioned his crotch directly opposite to Rouge’s foot. At this time, the Critters, Chao, and Wisps made their way to the new parents and, on seeing Rouge on the ground and a tiny echidna fresh from the womb, realized what all that screaming was about. 

“What the-?! Oh, not this again! Get out of here, you-!” 

“Don’t be like that, Knuckie!” She chastised and then turned to the creatures. “You can all stay and watch if you want! Just know that this is a whole different kind of show from last time…!” 

“Why are you okay with this blatant breach of our privacy? At least with the sex, Tikal and Chaos were already watching…” 

“You should’ve learned long before now that I’m a kinky woman. Besides, don’t you want an audience to witness the birth of the new echidnas?” 

“I-I guess…” 

Rouge groaned from the baby starting to crown. “Well, now’s not the time to think! My hole is gonna get stretched to hell again and your balls will pay for it!” 

And so, Rouge began kicking and stomping at Knuckles’ stones in between her own pushes. Despite how quickly this next child was going through the tunnel, no doubt lubricated by its predecessor, the moment it made contact with the opening, advancement became a struggle. Just as Knuckles worried, Rouge’s tight pussy remained so during birth and made it difficult to get to the crowning stage, and he could tell when one of Rouge’s pushes failed to advance from how hard she kicked. 

Said kicks were probably the most devastating the bat had ever made, and without a doubt the most agonizing strike ever done to Knuckles’ pearls. The frustration of failed pushes combined with the burning sensation happening to her most vulnerable and valued part made Rouge all sorts of furious, which gave her kicks even more strength than normal. By the time the birthing bat was able to crown, the male echidna’s eggs had turned to the deepest shade of blue and swelled to the size of eggplants. And suffice to say, Knuckles’ expression mirrored Rouge’s own throughout the whole ordeal. 

With the Critters, Chao, and Wisps, many of the males had actually left Knuckles and Rouge alone and went back to their previous activity, being disgusted by either the ballbusting, the birthing, or both. Though plenty of the creatures stayed and watched for their own reasons; some were focused on the birth and anticipated the oncoming new life, others found genuine enjoyment of the ballbusting Knuckles, either due to being females with a pre-existing desire to bust some balls or finding the male getting his seed makers bashed in by his now delivering mate cathartic, and the rest were kinky sadists who got a kick out of the suffering both Knux and Rouge were enduring. 

Fortunately for Knuckles, Rouge’s kicking ceased once the baby was fully crowned, with only its muzzle remaining inside. Of course, not because Rouge decided to give Knuckles a break, so much that her vulva had gotten so stretched that she could not extend her leg. The echidna breathed a sigh of relief at the end of his torment, but a pained shriek from Rouge got him into ‘urgent mode’. 

“How’s it going?! Need my help?!” 

Rouge squeezed her eyes shut as she tried to push the second baby, but to no avail. “Urgh…! I’m realizing now that I need gravity to get these babies out…!” She gave a teary glare to Knuckles. “Give me your balls and pull this baby out!” 

Knux nodded rapidly and hesitantly handed his swollen goods to Rouge. The bearing bat immediately reached for the echidna eggplants and yanked down on them with a crushing grip. Knuckles cringed from Rouge’s swift act of retribution, and went to between her legs to help with the delivery. A wave of unease traveled through the echidna’s body alongside the intense testicular pain as he looked at the exposed head of his second born, and then looked to his hands. He took a deep breath, exhaled, and then delicately grabbed at the infant’s head: slipping his fingers into Rouge’s stretched thin nether lips to do so. 

Once he was sure he got a firm hold, Knuckles proceeded to gently pull at his second child’s head. Rouge tugged his fruit in tandem, and the two childbearing parents screamed in unison once more as their groins were engulfed in agony. Soon enough, though, Knux was able to pry their second born out of Rouge’s cooch. 

The freshly born infant cried as both Knuckles and Rouge breathed sighs of relief, with the bat’s labia no longer stretched beyond their limits, and in turn ceasing her pull on the adult echidna’s sack. Knux brought the second baby over to Rouge and both looked at their second offspring; the child looked almost identical to the first, on account of the lack of fur and quills for distinction, but did have one distinguishing feature.

“Heh, congratulations, Knuckie. You’re officially no longer the last male echidna alive.” 

“Sweet! And now I got someone who will sympathize with my ballbustings.”

“I wouldn’t be too sure. I somehow expect him to laugh at your testicle abuse until his own drop. And even then!” 

Before either could go on with the topic, another contraction wracked within Rouge, to which she pressed a palm to her baby-filled belly. “Oooogh…! Already, baby number three is on the way…! The fem-bat and man-chidna place their newborn son onto the next, next to his minutes-older sister, and then got to work on the next echid-baby. 

“Not to tell you how to do this or anything, but I’m thinking we should let gravity help with the pushing from now on. I was worried I’d crush his skull by accident…” 

“AGREED!” Rouge did some lamaze breathes as she tried to lift herself upright, but even with the aid of her wings could not budge upward. “How about you help me up?!” 

Knuckles quickly got behind Rouge and lifted her up by the armpits(?) to her full height. “Here ya go! Safe for me to let go?” 

Rouge positioned her feet and was set to birth upright, but intense pressure in her canal made her lean back against Knux. “Not yet… I’m gonna need you to hold me up while I push this one out…” 

“Understood!” The cherry-colored monotreme steadied his stance and looked over Rouge’s shoulder to check on the progress. Of course, he could not see much past the bat’s immense belly. “But wait… How are you gonna bust my balls like this? They’re not exactly grabbable for either of us in this position.” 

Rouge groaned as she attempted a push and then glanced back at Knuckles with a grin. “Heh… You’re actually wanting me to bust your balls…?” 

“Hey, big part of our deal is that you make my balls experience pain for the pains you’ll experience from pregnancy and birth!” Knuckles then glanced away with a blush. “But I can’t deny, I’ve also come to enjoy the testicle abuse, even if it can get overwhelming at times…” 

“Hmhm! You’re such a sweetheart, Knuckie! And I knew I’d make a masochist out of you!” Rouge looked all around herself and Knuckles to find a way to break his nuts. Almost immediately, an idea popped into her head. “Oh~! Quick, widen your stance a bit!” 

Knux did so, and then quick as a flash, Rouge flexed her one of her legs behind herself and grabbed at one of Knuckles’ echidna makers with her clawed bat feet. The virile male shrieked as Rouge’s toes gripped his one jewel tightly, her bat claws stabbing into it, and then wailed ever more when the fertile bat woman pulled that testicle down to the ground and stood atop it with her heel. Rouge then repeated that action to Knuckles’ other testicle, and just like that both orbs were stretched to the ground underneath the bat’s heels. Rouge let out a content sigh as she leaned back more against Knuckles and put all her weight into her heels, crushing those spunk makers even more and making the red male groan in agony. 

“There we go~! Thanks so much, Knuckie! Probably regretting this now, aren’t ya?” 

“Urgh… Nope…! Now let’s deliver this baby!” 

Rouge’s pussy involuntarily gaped and twitched, which caused the bat to grunt alongside the incredible pressure. “Ungh…! Couldn’t agree more!” 

Rouge dug her bare heels into Knuckles’ round treasure and began pushing. Both new parents grunted, moaned, and screamed as Rouge tried to squeeze that third baby out of herself, while Knuckles had his spuds getting mashed. Yet this time, Rouge could make out pleasured undertones in even Knuckles’ voice, even at his most pained. Indeed, the echidna’s four-bladed spear pulsed and hardened with each press down onto its circular brethren. And Knuckles even dared to rub his reddened cock up against the cleavage of Rouge’s plump butt. 

Not that the giftedly-endowed bat minded. Rouge moaned cutely from the feeling of Knux’s cock rubbing against her bum as well as the baby sliding against her full clitoris within. Rouge would have done some sexual motions of her own if she were not focused on bringing her third child out into the world. 

Truly, in this moment Rouge and Knuckles were in-tune with each other, probably even more than during sex: the bat and echidna enduring both the most intense agony and pleasure at once, for the sake of bringing new life to the world. 

Soon enough, the third echidna had crowned. And as her vaginal lips stretched beyond max again, Rouge noticed something amiss about this echidna’s emergence. “Huh… This one feels different from the first two…” 

“What do you mean?” 

“Feels bigger and harder! And… Round…?” Rouge leaned forward to glance at what was poking out of her bat cave, and made out not the scalp of an echidna infant but a white curve with brown speckles. “Oh god, am I laying an egg…!?” 

Knuckles glanced over Rouge’s shoulder to see what she referred to. “Can’t get a good look, but it seems so! Need me to get this one out too?” 

“No, no, no! You keep holding me up! I can push this one out myself…” 

“You sure…?” 

Rouge turned her head to Knuckles. “Have I ever been wrong?” 

Knuckles thought back to all the times when Rouge said how things would work out in confidence, and things went as she predicted. “Not at all.” 

Rouge took a deep inhale and stamped her heels down hard, upon which a ‘Squish’ could be heard, instantly followed by Knux making a pained cry with a cringed look. It was a more difficult push for Rouge, as the egg’s larger size combined with its round shape and smooth ‘skin’ made it keep sliding back into her birth canal, prolonging its inevitable emergence. An hour or so of trying to lay that egg out of an organ designed for live births ensued, and by the end of that hour the echidna egg finally ‘crowned’. Rouge extended a hand down to cradle the egg, and with one last push, it finally parted from her stretched thin nether lips, and the bat carefully placed it to the nest next to the still crying echidna newborns.

“Whew… Thanks Knuckles. You can let go of me now.” 

Knuckles released Rouge with a relieved grunt and shook the soreness out of his arms. The father echidna became even more relieved once Rouge stepped off his balls and the two looked at the egg that contained their third child… 

“Whoa… I never thought I’d see a live echidna egg until I became a granddad…” Knuckles poked at the bat-laid echidna egg in disbelief. 

“Yeah… But how the hell did this happen…? My womb should literally be incapable of making eggs like this…” 

“Perhaps it’s a quirk from the spell? Since it makes you produce only pure echidnas, and echidnas are normally supposed to hatch from eggs…” 

“Makes sense. I just hope I get mostly live births. If it weren’t for that other spell, I would’ve gotten a vaganus from that…” 

The two placed their egged third child next to its sobbing siblings and then Rouge stretched her legs and back, and readied for the next birth. 

“Okay! How do you want to do this next one?” 

Rouge sighed. “Even with your help, my legs need to rest…” Rouge lied down on the nest and got on her side. “Might be working against gravity again, but it’s better than on the back…” She turned her head to Knuckles with a grin. “I just need something extra soft to rest on.” 

“Heh, of course.” 

Knuckles got behind Rouge and sat down with his crotch exposed wide. Rouge lifted up her elbow and planted it down onto Knux’s balls. Knuckles howled a bit from the pain and pressure, and then the bat began to birth the fourth child. 

Having pushed out two babies and a slightly larger egg, Rouge’s vagina had become accustomed to the process, as well as extra lubricated, and so this birth went by more smoothly. Of course, it was still a taxing ordeal for the tan bat due to the infant’s large size in contrast to her narrow cavern, not helped by her fighting against gravity. And so, the fresh mother made sure to take out her stress on Knuckles’ nuggets with harsh elbowing. 

Sooner than later though, baby number four was born; a healthy echidna boy’. Rouge brought the newborn up to Knuckles and the two cooed at him. 

“D’aww, he’s already growing out his knuckle spikes…” Knuckles mused, referring to the ‘stubs’ on the baby’s fists. “You will definitely be ‘Knuckles Jr.’!” 

“Ha! I thought your dick and balls were ‘Knuckles Jr.’?” 

“I mean… I’m not gonna deny my own son such a name because that’s what I call my valuables…”

“Hmhm, well, I’m good with that name if we name the next girl after me.” A contraction rippled within, to which Rouge placed a hand to her bare belly. “Which I’m hoping will be this one…” 

Wanting to work with gravity this time but still be able to rest her legs, Rouge wanted to birth the fifth child sitting down. But there was nothing for her to comfortably sit on except for the nest, but Rouge could not birth whilst sitting on the ground. So Knuckles quickly went to the craggy part of the cliff the Hatchery Shrine resided on, crafted himself a boulder, and rolled it over to Rouge next to the nest for her to sit on. However, Rouge instead told Knuckles to sit on the boulder, and once he did, she positioned her curvaceous rear and plopped it onto his balls. 

The tan bat breathed a sigh of relief on feeling the echidna’s nad flatten from her proud rear cheeks, then flattened those echidna fruit further as she made a push for baby number five. Knuckles was mixed with arousal and pain once more as his sack was crushed with Rouge’s butt cleavage rubbing against his rod, but this time the butt itself was the source of his testicular agony, especially as his twin orbs were squeezed against the harsh texture of the boulder he ‘made’. Even worse, Rouge made sure to shift her ass for extra pain to those nuts for each setback in the fifth birth, and indeed, many setbacks occurred, for this fifth child was positioned differently… 

“Crap… I think this one is a breech…” 

“Breech? What does that mean?” 

Rouge made a push, and both she and Knux groaned from their shared aches. “I really shouldn’t have to be explaining this shit to you, hun! But a breech birth is when a baby is born ass first instead of the head. And they can be quite a bit more difficult…” 

Knuckles tried to look over Rouge’s shoulder once more to see what she meant, and though he could not see the full crown, he could tell that was indeed a baby’s butt coming out of that bat cave instead of a head. 

“Wow…! What a big butt! Now I’m hoping this one is a girl too!” He chuckled a bit. 

“Yeah, good for you echidnas…! Not at all good for my pussy right now…”

An hour of pushing and flattened balls passed when the newborn echidna girl fully exited from within Rouge. Knuckles caught his third daughter as she came out and brought her up to Rouge to admire their latest spawn. 

“Welcome to the world, Rouge Jr.!” The bat chimed with pride. 

“Let’s lay you down next to Knuckles Jr.” 

Knux and Rouge do exactly that and then got ready for baby number six. 

“Okay, how do you want to do things this time, babe?” Knux asked with a palm to Rouge’s still gravid belly, as she still sat on his prized stones. 

Rouge looked up at the stone cover of the hatchery in thought, and then immediately got an idea with a devilish grin. “For this one, I’m gonna try and stand. But to help me out, I’d like to hang onto something above me…” 

Knuckles immediately got the idea and looked to the ‘ceiling’ with unsure eyes. “I gotcha. Lemme get up there…” 

Rouge got up from Knuckles and then he got on top of the boulder. The crimson male carefully crouched down, and then jumped up to the ceiling of the stone sun cover: using the spikes on his fists, Knux clung to the stone ceiling just as he clung to walls, and hung like a chandelier. After making sure he had a good grip to the ceiling, Knuckles moved to above Rouge, who stood over the foliage nest just in front of the newborn echidnas, and then he spread his legs apart. 

“Okay… All yours…” 

Rouge rubbed her palms together in delight, and once the contraction for next birth commenced, she reached for those massive cherries and held them tightly while pulling them down. 

Knuckles screamed from the yanking and crushing of his balls and lifted his legs upward as they twitched from the intense pain that shot throughout his lower body. And Rouge screamed in accordance as her own lower body was feeling the burn. 

The bat pushed and pushed with all her might on each contraction, but it felt to her like the only result was making her entire body shake from the pressure. Rouge sure was not feeling a baby going down her canal, and frustrated her to say the least. The Critters, Chao, and Wisps who watched got scared from the woman’s pained and furious shrieks, and they winced as she dug her nails into Knuckles’ sack, to which the echidna bellowed in agony himself. 

“Ooooouuuuurrrrgghh…!!!” Rouge moaned as she squeezed down, but to no avail. “What the fuck?! The other babies at least inched out! I don’t think this one is even moving!!” 

Rouge widened her legs at their maximum as she stood and leaned back, holding extra tightly to Knux’s gonads to keep from falling back. Knuckles’ toes involuntarily curled and his legs quivered from the intense pulling and squeezing his orbs were being subjected to. And this time, he could not steel his mind for he had to focus on keeping a grip on the ceiling, lest he fall on top of his birthing mate.

“Uuuurrrgghh…!! Maybe this one requires extra time…” 

Knuckles’ hunch proved correct as the baby finally inched down after an hour of pushing, and continued advancing with each hour. By the time the soon-to-be born echidna was about to crown, the sky had turned orange as the sun was preparing to set, and both fresh parents were absolutely covered in sweat from the literal hours of agony they endured and were beyond exhausted. 

Knuckles could feel that his scrotum had been stretched out a few inches and did not even have to look down to know that his testicles had become a darker blue. And said testicles resembled crushed clay from the hours long tight grasp Rouge had on them, and gained some nail markings from her desperation. Without a doubt, this was the most agonizing ballbusting Knuckles ever experienced. And yet, his cock was at its most excited as it pointed to the heavens and would be guzzling pre-cum if not for his penis’ quirk. 

Rouge, for once, was the worse for wear of the two; not only struggling to push out a single baby, with the contractions getting longer and more painful as it went along, but also had to provide care to the already born echidnas in between. The fur that covered her head was disheveled from the sweat, tears, and her pained movements. And her entire pussy had turned red from the stress of the birth, as well as the blood that collected down there to provide the baby hole more oxygen. This whole childbearing experience was just as bad as Rouge thought it would be, but this last baby made it even worse than she imagined, and the bat was more than happy to punish Knuckles’ balls for it. And yet, much like Knuckles, there was something about all the pain in her crotch and pushing those infants out from within herself that gave Rouge a great sense of pleasure. 

With one more push, the baby crowned at last. Rouge breathed a sigh of relief and extended a hand to feel the freshly emerging infant: she indeed felt the baby’s scalp and gave it a light pet. But when she moved her fingers down to feel the rest of the head, she touched what was unmistakably a butt, and realized that she was feeling the bottom of a baby’s scalp...

“Holy shit…! I thought this baby was just really fat or something… But I think I’m actually birthing two kid-na’s at once!” 

Knuckles’ eyes nearly popped out of his skull from this revelation. “WHAT?! I thought that’s impossible!” 

“It should be impossible!” Rouge moaned as she made another push. “URGH! And of course this second one had to be a breech! This would’ve gone a lot quicker and smoother if these babies came out one at a time, but I guess one of them got impatient…” 

Knuckles grinned. “Well, let them out into the world already!” 

Rouge smirked as well and gave her man’s jewels a playful smack. “That’s what I’ve been doing for the past few hours, Knucklehead.” The tan bat readjusted her stance, affirmed her grip on the echidna balls, and bore down once more in her nether region. 

Now that the babies were crowning, Rouge’s pushes had more effect on them and they actually budged out. Unfortunately for the bat, their full emergence was still impeded by her vulva, which was barely able to fit each of the single babies and the egg. And with her vagina literally incapable of getting ripped or sliced bigger, this delivery was going to be a serious challenge...

But Rouge enjoyed a challenge, and pushed fervently without break. The small creatures watched with awe as the bat’s nether lips were spread completely wide once more by babies; the whole sex organ pulsing from Rouge trying to force the echidnas out quickly. Soon, the head and bottom of the two babies fully popped out, but stretched Rouge’s vulva beyond its limits; the labia turned purple from the strain and she shrieked at her highest pitch from the incredible pain.

Knuckles could practically feel the overstretching of her vag, especially as she yanked on his fruit down to her mouth level. Had he not gotten accustomed to the ballbusting, Knux would have gotten catharsis from Rouge getting hell in her groin. Instead, he felt sympathy and a little bit of guilt, considering he is responsible for this agony of hers: but only a little guilt, considering his testicular torture had been done for this very reason. 

Rouge panted for a solid minute, trying to collect her thoughts from the ring of hellfire she was feeling down there. She looked down and managed to see the one baby’s exposed head, her pregnant belly diminished enough for her to glance past it. But the fem-bat also made out the bottom of the second baby and saw what just had to be a set of danglers that managed to exit her cave alongside the kid’s butt. Rouge sighed to herself with a face that said ‘Figures’. This baby that was too impatient to wait his turn to be born was not only a breech, but had a sizable enough gonads in order to be seen from her angle. And she could not even punish those balls, since it belonged to her baby boy. But the boy’s father, on the other hand... Rouge set her sight back onto Knux’s balls that she clutched and pulled tightly with a renewed sense of annoyance and, feeling that she gritted her teeth too much with the laboring and birthing, bit down hard on those pesky seed makers of that red echidna. 

Knuckles face and legs contorted as he registered Rouge’s teeth, especially her fangs, dug into his most sensitive parts. That bat had bitten his massive berries before but on a comparatively rare basis, and the torment of birth made her bite down at the hardest: even more than Sticks did back at the ‘baby shower’. The crimson male breathed in as much air as his lungs could hold, and screamed at a volume that could be heard all over Angel Island, with his pitch at its highest. Knuckles screamed without pause even as Rouge stretched his sack lower and lower down so she could get her crotch closer to the ground, so the newborns would not suffer a harsh fall to the nest, to which the male’s volume and pitch became higher and higher. 

Once she was sure that the babies would be at a safe drop distance to the nest, Rouge proceeded to squeeze the rest of the babies out of herself. The combined girth of the babies bodies stretched out her already overstretched labia even more, which provoked the bat to bite down and squeeze her mate’s testes more harshly. 

After many minutes had passed, the pain for both new mother and new father ceased as the simultaneous babies fell softly onto the foliage nest. The fresh newborns cried to the sky alongside their already born siblings, and Rouge released Knux’s balls from within her mouth with a relieved exhale, to which he panted in relief. Rouge then let those balls go from her hand, to which they snapped back up against their owner’s bottom, and she picked up the two new echidnas. 

“Hoo! You two really gave my pussy some hell!” She patted the infants as she examined them. “I knew you were a boy, ‘Mr. Breech’. But now I see your headfirst counterpart is a girl.” Rouge noticed Knuckles was still clung to the ‘ceiling’, groaning in recovery. “You know, you can get down now. Come see our newest two babies!” 

With her permission, Knuckles released his knuckle-spikes from the stone sunroof and landed on his feet a short distance behind Rouge. Of course, thanks to the size and weight of his balls, they hit the ground first, and the echidna wound up landing directly on them. The testes’ collision to the ground and the accidental stomping made Knuckles yelp and fall on his back, clutching his punished orbs, much to the amusement of Rouge and the watching creatures. 

“Urrrgh… Is it over…?” 

Rouge looked down to her womb as she waited for a potential contraction. A minute passed and she only felt her stomach rumble from hunger, and Rouge smiled with a breath of satisfaction. “Yep! These two were the last ones.” Rouge placed the final babies with their siblings, and looked at all of them with pride. “Heh, check it out Knux! With the exception of the egg, we got an equal number of boys and girls! And we got seven kids total! Pretty crazy, huh?” 

Knuckles got up with a groan and looked at his newborn echidnas who lied on the leafy nest. “Oh wow! That is crazy! In a good way, of course.” Tears started trailing from the echidna’s eyes as he gazed at his seven babies. 

“Knuckie…? Are you crying…?” 

Knux sniffled. “Yeah… My testicles are still overwhelmed with pain…” He chuckled a bit as Rouge shook her head with a small grin. “But it’s mostly tears of joy... I’m no longer the last echidna alive, and now father to seven beautiful children.” Knuckles leaned his head against Rouge and placed a tender hand to her shoulder. “Thank you so much for this, Rouge.” 

“Aww, it was no problem, Knuckie. I must admit, as unbearable as the labor and birth was…” Rouge’s eyes became glazed from the sight of her babies. “The end result makes it more than rewarding…” She wiped her eyes and then turned to Knuckles. “And actually, underneath all that pain, there was a great sense of pleasure that made the whole experience bearable. Makes me honestly look forward to when I deliver our next brood.” 

“Really now? I’m glad, and not just for the obvious reason. I wouldn’t want you to keep up the repopulation effort if the childrearing was that bad for you. Heh, does that mean you’ll start taking it easy on my balls?” 

“Ha! Not in the slightest! If anything, I’m gonna come up with ways to absolutely torture your seedmakers for each and every birth, just to make sure they really know how my pussy feels!” Knuckles nervously grinned as Rouge rubbed her nether lips, which were slowly turning from purple to red. “I’m not going to pee comfortably for weeks…” 

“Hm, so I guess we won’t start making more babies for a while, huh?” 

“Obviously, Knucklehead! Even if I wanted to, I won’t be ovulating until the postpartum period is over, which can take months.” 

Knux sighed. “Figures.” He rubbed his sore sack. “Well then, I’ll try to build up a bigger load for when the time comes. Try to get you gravid with more kids.” 

“Sounds like a plan! But enough sexy talk, we got newborns to care for!” 

The echidna and bat couple picked up their six newborns, and egged child, and headed back home as the sun descended beyond the horizon, turning the day to night. Knuckles and Rouge cooed and hugged their freshly arrived babies, as well as calming them of their crying, and discussed what to name the ones whom they had yet to name. All the while, the Critters, Chao, and Wisps who watched the whole event returned to their dwellings as well, content with what they had witnessed and ready to go asleep. 

In the midst of carrying and caring for their children, Knux and Rouge exchanged glances at each other’s genitals, particularly the swollen pussy and testicles respectively, and became eager for when they would breed again: Knuckles’ four-headed cock hardening in anticipation for when it could enter and flood Rouge’s cavern again, whilst Rouge became wet at how full Knux’s balls will be by that time and how she would abuse them in the meantime. Something that Knuckles earnestly looked forward to, after all this time.