[Corruption, Breeding, Pregnancy]

"Crown Prince Onyx. Do you take these three as your beloved wives, and promise to keep peace in the land?"

"I do."

"Ruby Knight. Sapphire Knight. Emerald Knight. Do you three take him as your beloved husband, and promise to keep peace in the land?"

"I... I do."

"I do..."

"Damn- I mean... I do."

"Then let this mark the beginning of a new age between these realms. Let Gemtopia and the Knightmare Empire be united as one, under the banner of love..."

Those were the words that now bound mortal enemies under a contract. A contract that would ensure that none could raise their blades against one another. A contract that was meant to finally put an end to the conflict that had ravaged the land for so long. A conflict that had been born from fundamentally different viewpoints clashing and refusing to back down.

Gemtopia was a land that shined brilliantly. A land of courage and wisdom that strove to keep peace, all thanks to the young girls that grew up to become part of its defensive force. The Gem Knights, currently spearheaded by the brightest minds of this generation.

Ruby Knight, the fiery yet insecure leader. While she had a strong sense of duty and a will to keep the world safe, she also harbored a great deal of doubt over the fact that she had been chosen over her sister. A sister that defected to the Knightmare Empire when she least expected it. Even now, as she pledged to this peace... She couldn't help but wonder if her sister would truly accept it.

Sapphire Knight, the eldest of the three. She was a studious type. The kind of girl that would bury herself in knowledge and use that knowledge to unravel those that stood against her. In fact, she had been outright hostile towards her fellow Gem Knights when she was the sole leader. But Ruby's insecurities were too much for her. She felt a tinge in her heart when they fought, and her hostility soon turned into a need to protect the girl...

Emerald Knight, compared to her compatriots, was a rough one. While she was shorter than the other two, she was definitely stronger. But most of that strength came from how much she pushed herself. Because everyone had looked down upon her for her size, she trained and trained until she was much better than everyone else... Which in turn, alienated them. All except for Ruby and Sapphire, who saw her for what she really was. A girl that just needed a friend. Which she vehemently denied every time, even as she grew redder and redder with each interaction.

But fighting against the Knightmare Empire was why they had ended up in this situation. As while they were strong enough to single handedly break the ranks of the army, their fights against the Empire's generals resulted in nothing more than untold amounts of destruction...

And the main cause of that destruction? It was their clashes against the young boy that now served as their husband. Crown Prince Onyx, the sole true heir to the throne. While he was definitely much younger than them, he was not harmless. But despite his at-times brutal outlook on how to handle the conflict, fighting against those three had done a lot to mature him at the same time...

It was thanks to their influence that he had done what many in his ranks would consider utterly impossible. He challenged his Father, and forced him to accept his terms. This was why this marriage and the resulting pact had come to pass. Because of their ideals melding with his own. He always wanted to be stronger... But strength just for the sake of strength would only bring ruin. So he had figured out the next best method, and one that he would be demonstrating now that they were going to be together...

Onyx would show all three of them exactly what he had learned from fighting them, and how much he had come to admire them...

---

"Well then, Gem Knights. I trust that you've gotten acquainted with your new home?"

Onyx smiled as he stepped into the royal chambers that had been assigned to his three wives. And the answer he got for his trouble? Two pillows tossed at him, and a glare that was aimed square at his face. Honestly, he expected something like this. He knew what kind of girls they were.

"What the hell are you planning, you brat?" Emerald grit her teeth, all while reaching for another one of the regal-purple pillows that she had been tossing at him. All while she was dressed in lacy green lingerie. Not the kind of underwear or nightwear that she preferred, but she couldn't make the maids that dressed them like this stop. All that the tomboyish shortstack could do, especially when her lingerie dug into her curves and added to her frustration, was take it out on her 'husband'.

Sapphire was not in the best mood either. She was glaring straight at the boy, as she slowly pushed up her glasses. Her lingerie was of the same design as Emerald's, though hers took great care in emphasizing her bosom instead of her rear. "Knowing the kind of tactics that he's used against us, he's probably planning to break our will. Just like he broke Ruby's sister into serving him." She muttered in a cold and calculating tone. All while she narrowed her eyes at the braid that the maids had given her. It was beyond intricate, and it reached across her shoulder. They probably thought that she had untapped maternal charm, something that she would gladly protest against if she had the opportunity.

"..." Ruby, who wore a much frillier and gentler set of lingerie that emphasized her cuter and more petite figure, remained quiet as her two allies showed their own types of hostility. Something that she didn't exactly exhibit, despite the fact that she had many reasons to. She just stared at Onyx with that same nervous look that she usually gave him. Not because of what he had done to her, but what she had done to him...

Onyx laughed as he stepped closer. "You three don't trust me, just as you always have. Excellent. I wouldn't expect you to, considering the circumstances of our little marriage." He said, as he casually endured a couple more pillows being tossed at his face. "But I do not intend to harm you or betray you. Not this time. You've all taught me a great deal about the merits of trusting your partners. About the strength of a bond. And that was why I broke through to Father. Why I brought you all here. To make this bond ever-lasting."

"Ever-lasting? Get real, you're probably planning on brainwashing us or something. You've done that far too many times for us to trust you!" Emerald shouted, though she didn't actually get up from the queen-sized bed. No, she just reached for another pillow and growled when she realized she had run out.

Sapphire slowly raised an eyebrow. "I suppose that we have been able to best you through the power of our teamwork. But you tried to destroy it several times over. That's why Ruby's been like this for the last while. Because of what you did to her." She muttered, as her aggressive glare re-focused moments later. She wasn't about to cut him any slack.

"What I did to Ruby?" Onyx said, laughing a little as he came all the way over to the bed. Right before he focused his gaze on the redheaded girl that had fought against him over and over. "Has she not told you what happened that night?" His youthful voice was sharp. Especially as he turned their accusations towards her instead.

Ruby trembled a little, before softly chuckling. "Y-You're making it sound like it was a lot worse than it really was, Onyx..." She chimed with the same nervous intonation as usual, especially as Sapphire and Emerald turned their gazes towards her. "I-I'm serious, girls. It wasn't that bad... It was just..."

"Consumated love." Onyx said, before snickering. "Is what I wish it was. But she's telling the truth. She bested me when we were all alone, and instead of finishing me off, she nursed me back to health. Even though she had shattered my armor and left me in such condition that she could've easily abandoned me. She decided that it would be better to show mercy. I promised her that she would regret it, but..."

Emerald blinked a few times, before her expression turned bright red. "Hold on. Hoooold on. You're meaning to tell me that just because Ruby kicked your ass, you fell in love?! Then why'd you rope us into it?! What do we have to do with it?!"

"I concur." Sapphire added, all while pushing up her glasses so her eyes were hidden by a blue glare. Which really did nothing to hide the subtle blush on her cheeks. "You may have fallen in love with Ruby, and her in turn with you. But that does not explain your love for us. Should there even be any love present within your heart."

Onyx grinned at both of the other Gem Knights. "Learning to love Ruby allowed me to love you two. The feisty spirit and unrelenting offense that Emerald can put up, as well as the cold way that Sapphire acts to hide a much softer heart. Both of you have qualities that, truth be told, arouse me greatly."

Both Sapphire and Emerald were quick to narrow their eyes as he emphasized his arousal, before they blinked and noticed the sheer amount of meat that he was packing. Now that they let their aggressive outlooks die down a bit, they could truly see the boy for what he was...

Good grief, he was even bigger than the king back home. And they were unfortunate enough to walk in on Gemtopia's Queen making love, so they definitely had a point of reference. No wonder Ruby was like this, she probably already knew what he was getting at...

"I suppose we shouldn't beat around the bush any longer, Onyx..." Ruby said, taking a deep breath as she calmed down as much as she could. All while slowly spreading her legs to reveal her drenched nethers... And the simple fact that she hadn't even bothered to put on the underwear that would complete her lingerie. "It is meant to be our honeymoon, after all."

"Indeed. Would you two like to join us?" Onyx asked a simple question, before chuckling as his eyes shone a characteristic shade of black. Right before he seemed to split into three, a tactic that he had used several times against the lot of them before to keep up with their united offense. But this time, it wasn't meant for offense. It was meant for their pleasure. After all, he wasn't going to just neglect them if he could be giving them the same kind of love that he wanted to give Ruby.

Emerald bit her lower lip as she looked at the Onyx that stood across from her. And she ended up looking away from him as she laid down on her side, letting one leg lift into the air to reveal her now-soaked underwear. "You're the worst..." She muttered, refusing to acknowledge how he had managed to strike directly at her heart.

"...Very well. I suppose that this will do." Sapphire said, as she carefully took off her glasses. All while standing up slightly, only so she could squat and truly emphasize her breeding-ready hole. "Do be warned. I have studied how to truly pleasure a male. You may just end up addicted." She gave him a warning, though it seemed to be her odd way of flirting. Because of course a girl like her didn't have the best grasp on reaching another person's heart, given her interest in the literary arts.

Onyx looked at all three of his wives. All while the three versions of himself grinned from ear to ear. It didn't take much to remove his pants, and neither did it take much to mount the girls he loved. One pinned down Ruby as he slammed his rod straight into her hole. One grabbed ahold of Emerald's leg and penetrated her just the same, using it as a support while he started thrusting. And one decided to let Sapphire do much of the work by getting under her, and letting her pussy press against his cock as she got a better glimpse of how enormous it truly was.

Ruby's cries were potent and passionate. Filled with love and affection for the boy that she had fought against so many times. And though he had promised to corrupt her and turn her into his lover back when she had nursed him back to health, the circumstances of their lovemaking was a lot different than it could've been. Even though she felt the core of her powers shaking as he thrust into her, even though she felt that he could corrupt her at any time, she knew that it wouldn't come to pass in the same way.

Emerald, by comparison, was gritting her teeth as she felt him thrust harder and harder into her. It was like she was fighting against him, matching him blow for blow. And just like whenever their blades met, she couldn't help but want more. "Harder, damnit! You want to prove you can be my husband!? THEN GO HARDER!" She shouted at the young boy, before her eyes very nearly rolled into the back of her head as he did as she asked. Why did she have to invite such treatment, when she knew what the results would be?

Sapphire had not yet started, simply mesmerized by the size of that rod. The size, the shape, the smell. All of it stunned her for a bit too long, before her body's instincts took over and she slowly raised herself up. Right before she slammed herself down on that cock, eyes widening as she took it a bit too far. The cock had pierced through her cervix, and it was now snugly sitting inside of her womb... Which just made her blush much more, as it felt much more wondrous than she ever could've expected.

Onyx was satisfied with how it felt to fuck all three of them. Not just because of the sheer pleasure of it all, they were tight in each their own way and that was driving him close to orgasm with ease, but the thing that truly made him inch against the border of his climax... It was how the three reacted. Ruby's gentle cries and love, Emerald's attempts to rile him up forcing him to pay her back, and Sapphire's silent overconfidence. They were all facets of the girls that he had come to love and appreciate. Now he just had to pay them all back with his own love.

And with one strong cry from the three copies of himself, he slammed his cock as deep as it could possibly go. Thrusting with all the might that he had in him, to ensure that the wives that he had wed were going to climax alongside him. Especially as that cry devolved into one loud pleasurable scream, as each of them reached a potent climax. And as a result the bubbling and extra sticky white goo started to flood straight into those open wombs.

Emerald, Sapphire and Ruby each cried out just as potently as their short lovers, their orgasms brought on by nothing but love. Each of them squirming and trembling as they were pumped absolutely and absurdly full of cum. Both Emerald and Sapphire were too filled with pleasure to truly be aware of how much they were being filled, but Ruby watched her belly grow and grow, all with wonder and hope in her eyes...

This was the birth of something special. Just like the birth of their daughters and sons would mark the true beginning...

---

Gemtopia and the Knightmare Empire became one not long after that. And as a result, the original rulers abdicated their throne. Not just because they knew that there was no way that they would be able to rule after the show of love that the Crown Prince and the leading Gem Knights were able to put on... But because those four weren't the only ones indulging in a bit of forbidden love.

And now, it was up to King Onyx to rule. Not by his lonesome, of course. His wives would not dare allow him to lead all by himself. They knew exactly what would happen if he was allowed that kind of unlimited power.

Knightmare Queen Emerald would make sure to keep him tough and ready. Even with her gravidity truly contrasting the heavy yet frilly armor that she now wore, she  was able to keep him on his toes with her ferocious attacks. And the kind of love she showed him once they both tired each other out was still one of the most wonderful things he could ever imagine. Especially as she turned bright red once he complimented how good she looked wearing black.

Knightmare Queen Sapphire would keep his knowledge up to date. As strong as he was, a true King would have to rely on much more than mere power. Which was why she served as his personal teacher in many ways. And to keep him focused on his task, she indulged his wants and needs by letting him worship her gravid form. Perhaps she grew a dominant streak because of his blackening love, but she never did allow him to catch her when she was off guard.

And finally... Knightmare Queen Ruby. The girl that had taught him what it meant to love. The girl that now enjoyed the fruits of the peace. And the girl that ended up the most matronly of all. Though her size prevented her from getting out of her throne most of the time, he would not neglect her. And neither would she neglect him, making sure that he remembered exactly why she had been the one to teach him love... And why she had been the one to suggest that they should all wear a little bit of black alongside their main color.

With all their hearts as one, this peace would be everlasting...