Chapter One: An Ace and Two Witches

It had been a run of bad luck to end all bad luck.

Kallen had been sent to a safe house on guard duty by Zero. She wasn't sure why he'd sent her there with the Guren. But she wasn't in the habit of questioning orders.

And then the Britannians had shown up. The buxom red-haired pilot hadn't had the chance to even draw a weapon before she was forced down and blindfolded.

Now she was lying in a cell, her arms bound beneath her breasts in a straight jacket. Her mouth was gagged, and she could only see padded walls.

Then the door opened.

Into the room entered a tall, violet-haired woman. She had enormous breasts packed into a violet uniform. Her cheeks were elegant, and she eyed Kallen disdainfully as she patted her hand with a riding crop.

"So, you're Kallen Stadtfield then?" she said.

Two guards came forward and removed Kallen's gag. She spat it out. "That isn't my name; it's Kallen Kozuki! I'm Japanese!"

"Half, yes." said the woman. "Though your record says you are full Britannian, you do have some of the eleven blood in you after all.

"Still, you're an excellent pilot. I suppose even eleven blood can't fully dilute nobility."

"Don't talk like you understand us!" snapped Kallen. "You Britannians talk about social Darwinism while you live in luxury! You're complete hypocrites!"

The woman walked forward and kneeled in front of her. "Though I suppose you are part eleven, so you probably paid for your skills with something else. Good sense, probably." She smiled. "I'm Cornelia Li Britannia. And you should show more respect."

"Don't try and pretend like you understand me, you murdering bitch," said Kallen. "Kill me if you want, but Zero will finish you off."

"I'm sure you believe so," said Cornelia. "If you were pure eleven I'd do it without a second thought. But seeing as you're half Britannian that makes you a traitor. I think something special is in order."

She stood and motioned to the guards. Kallen was hauled up and dragged through the halls. Soon a door was opened, and Kallen was forced into a seat. Her straightjacket was pulled off, and her arms and legs were locked in place on the chair.

Kallen felt a bit afraid. "What is that?"

"This is a very special experimental device, called a Geass Projector," said Cornelia. "Clovis was developing it as a means to subjugate you filthy elevens. I've finished it.

"Set it over her."

Kallen struggled as the helmet was forced down over to her. "Let go!

"Let me.." A gag was forced into her mouth. "Mph!"

A violet symbol appeared in front of Kallen's eyes. It was like that of a flying bird, and it began to beat its wings in front of her. Kallen found her eyes widening and was unable to stop looking.

She felt two hands cup Kallen's breasts, groping them up. "It doesn't work quite as fast as some other versions," said Mistress Cornelia. "It takes a bit of time to take effect. In the meantime, we'll have to make some other improvements."

Mistress? Why would she think of her as Mistress? This wasn't right. "Mmph…" gasped Kallen.

"Yes, just relax while I steal your mind away," said Cornelia. Kallen moaned as she felt her skilled hands kneading her breasts. "And give you a gift in return."

A pair of lips pressed themselves against Kallen's for a long moment. Then the kiss was broken. "You see, I don't think you deserve the dignity of your present form. So I'm going to make some alterations to reflect your new role."

Then Kallen felt something injected into her breasts. Two sharp points being driven into her. She struggled as she felt heat growing in her. It got hotter and hotter and soon her already large breasts bulged outward, larger and larger.

Soon they were each the size of watermelons.

"Now that looks nice," said Mistress Cornelia. "And those breasts will be extra sensitive." Something slapped Kallen's breasts, and they went bouncing. She moaned louder and louder, growing wet from the pleasure and pain. "Now for the other half."

Kallen felt something injected into her rear then. Instantly it began to get meatier and meatier. She struggled as she felt her hips widening massively. Soon they were thicker than her shoulders. With a final groan, Kallen came and came hard.

"Excellent. It looks like the serum is working on you perfectly," said Mistress Cornelia. "And by now the Geass Projector will have worked the way into your mind.

"All you can hear is my voice. And you are incredibly suggestible. I could say anything, and you would believe it."

It was true. Kallen would believe anything Cornelia said. It would be true. She knew everything. She felt her breast on her lips, felt a knee grinding against her groin. But all she could see was the beating of wings.

"Now listen to me. I am Princess Cornelia, and you are my slave," said Cornelia. "I determine who you are. What you do. What your purpose is."

This was wrong. Kallen struggled. "No... no, I can't..."

"You are a slave to the Britannian Royal Family," said Cornelia. "From now on you will do whatever we want. You exist to serve us, and through us, Britannia."

"I... I won't…" Kallen struggled harder. She had to keep fighting.

"And you will call me, Mistress," said Cornelia.

The wings beat again and again. Kallen's resistance failed. "Yes... Yes, Mistress."

"Good," said Mistress Cornelia. "Now, from now on your purpose is to be my loyal pet and slave."

"I am your loyal pet and slave," said Kallen in monotone.

"Release her," said Mistress.

The binds were unlocked, and Kallen had the helmet pulled away. She looked up into Mistress' eyes and felt a feeling of absolute love and submission. She was her loyal pet and slave, not just to Cornelia, but the entire Royal Family.

Kallen stood up, and Cornelia slapped her across the breasts with the riding crop. Kallen's breasts went bouncing up and down, so they obscured her vision for a moment. Mistress enjoyed the sight, and Kallen was glad she enjoyed it.

"Now stand on one leg," said Cornelia. "Raise that leg up to your nose."

Kallen opened and brought up one leg to her nose. Keeping the position was hard, but she had to do it. For Mistress. "Would you like me to dance for you, Mistress?"

"Of course," said Cornelia. And she motioned across the room to a raised pole. In front of it was a seat. "You can use that pole."

Kallen nodded and ran over to the pole as Cornelia sat down. Kallen scaled up it and began to spin around on it. The method of doing it filled her mind. She rubbed her body on the pole in a way she thought was seductive, as Cornelia watched in satisfaction.

At last Kallen slid down the pole, her breasts cupping it. "How did I do, Mistress?"

"Very well," said Cornelia. "But I think it's time you and I had a different kind of dance."

Kallen blushed. "Mistress, what do you intend to do with me?"

Cornelia smirked. "From now on you serve the Britannian Royal Family. Now, tell me where Zero's main hideout is. Do you know?"

Kallen nodded. "Of course, Mistress. I'll tell you everything."

Cornelia's smile widened. "Of course. In payment for your crimes, you will lead the attack on the Black Knight's main base in the Guren.

"Once Zero is dead, and the Black Knights are crushed you will spend the rest of your life as my pet."

"Yes Mistress," said Kallen happily. "I live only to serve the Britannian Royal Family."

Days passed, and Cornelia had many duties for Kallen. Some were more pleasurable than others. But Kallen devoted herself wholly to her new task. The inside of the Guren was not a bit cramped, but it was all worth it for her Mistress' work.

Now they were waiting outside the Black Knight's main base. Everything was going perfectly. Cornelia was leading the assault forward, hoping to take them off-guard.

The Glasgow's were rushing forward, and Kallen was at the head as a figurehead.

The explosions soon appeared. Glasgow's were blasted to pieces as soldiers emerged from hidden grounds. They fired into them, wiping out many of the britannian forces.

Cornelia's glasgow lost an arm.

"An ambush!" said Cornelia. "Kallen, carve a path out of here!"

But Kallen did nothing. The orders of her Mistress had been very specific. And she was following them to the letter as she slashed off Cornelia's Glasgow armed and pinned her.

"Slave, what is the meaning of this?" said Cornelia.

"I live only to serve the Britannian Royal Family," said Kallen with a smile.

Cornelia was dragged out of her Glasgow by Black Knight soldiers. Kallen got out willingly, watching with a smile, Zero was pleased. C.C looked up from where she was munching on pizza. "Well, that worked surprisingly well, Lelouch."

"I know," said Lelouch. "The command I planted in Kallen ensured her loyalty. No matter what Cornelia implanted in her, she would always choose Zero."

"What if Cornelia had chosen to kill her?" asked C.C.

Lelouch considered that unfortunate possibility. "It was a calculated risk. Sometimes a king has to make sacrifices. In this case, though, it wasn't necessary."

Cornelia was dragged up to him with Kallen with her. Zero admired the huge breasts and butt that Kallen now possessed. He'd have to make use of those.

"Zero, I don't know how you did this, but it won't end with me!" said Cornelia as Kallen forced her prostrate before him. "Even if you kill me Britannia will-"

"Who said I would kill you?" asked Zero. He motioned, and the other black knights left, except for Kallen. The panel on his mask slid aside, and Lelouch activated his geass.

He looked straight into Cornelia Li Britannia. "Lelouch Vi Britannia commands you, be my slave, now!"

Cornelia shuddered as the command went into her. The Princess struggled, torn between shock. Her brother was alive, and even now was enslaving her will. Finally, her resistance broke, and she relaxed. "...Yes, of course, Lelouch. Order me to do whatever you wish."

Kallen smiled wider. "So you were part of the Britannian Royal Family. I knew it."

C.C made her way up to Kallen and held up one of her breasts. "So what are we going to do with Kallen now? I can think of a few things…"

"Q1, from now on you will take in your previous personality, except with complete loyalty to me," said Zero.

Kallen shuddered as her old self returned. She saluted. "Yes, Zero.

"So you turned the tables on Cornelia. I knew you had a plan."

"Indeed I did," said Lelouch. "We learned that she has personally commissioned several body altering serums. I thought she might like to test them. And what better way to test them than to transform the ace of the Black Knights into a pet.

"That was your plan, wasn't it, sister?" He eyed Cornelia.

Cornelia nodded. "Yes, Lelouch. You are superior to me in every way."

Zero picked up a case and opened it. Within was a syringe. "Demonstrate my superiority by injecting yourself with your own serum. Kallen is going to be very inconvenienced by what you did to her. It's only fair that you see things from her perspective."

Cornelia nodded. "Yes, master."

Reaching up, Cornelia began to unbutton her military uniform. Throwing off her jacket, the unbuttoned her pants and dropped them. She was now clad only in lacey black panties and a bra. Grasping the first syringe, Cornelia injected it into her left breast.

Instantly the breast bulged outward. It grew larger and larger until her bra snapped and her left tit was hanging down bare. They were even larger than Kallen's, almost twice the size. Cornelia had to lean forward, a blush coming to her features. Obediently she drew up the second syringe and injected it into her other breast. That one exploded outward in size, tearing what remained of her bra. Soon she was standing topless and hunched forward.

Cornelia reached forward and took the last syringe before injecting it into her butt. Her hips widened massively as her butt grew meatier and meatier. Cornelia let out a moan. She was now impossibly curvaceous now. Her breasts and ass jutted out so much that she could hardly reach her nipples. Her cheeks were bright red, and her mouth was open with lust. Kallen came up to her and wrapped her arms around her from behind. Cornelia melted into her arms, and their breasts were pressed together. They strove against each other's cleavages, seeking the other's lips. As they did, Cornelia grasped Kallen's pilot suit and began to work it off her. Their hands ran over each other's bodies.

"There are three syringes left," noted C.C, shedding her outfit, so she was naked. "Let me give it a try."

And she grasped two, injecting them into her breasts. Instantly her breasts expanded outward. Soon they were only slightly smaller than Kallen's.

"CC, I'm surprised at you," said Lelouch.

C.C grasped the last syringe and put it into her butt. Instantly her hips expanded outward, even further than Cornelia's. The same could be said for her tits. She finished her pizza. "I've had this body for a long time. I thought it was time for a change."

Kallen and Cornelia gave up their attempts to kiss each other directly. Looking up to Lelouch, licking their lips and batting their eyelashes. "What now, Master?" They asked in unison.

"From the looks of things Kallen likes some parts of her new identity," said C.C.

Zero removed his mask. "Why don't we discuss the final stages of my plan in the bedroom. Sister Cornelia, CC, Q1, follow me."

Lelouch led the three of them into a bedroom with a huge four-poster bed. Grasping Cornelia, Kallen, and C.C pushed her down onto the bed. Cornelia spread her legs as Lelouch shed his clothes.

As he entered into her, Cornelia moaned as Lelouch leaned of her. Grasping her gigantic breasts, Lelouch pushed them to either side. He slipped between her cleavage and kissed her on the lips. Driving his tongue into her mouth, he soon had her kissing back. The half-siblings thrust against each other, groaning as they did so.

C.C and Kallen were not to be left behind. Getting off Cornelia's arms they got on top of Lelouch. They pressed him down with their gigantic cleavages. As they did, they turned their heads and kissed each other.

Cornelia, meanwhile, had brought up her arms to run them over Lelouch's back, as he thrust into her again and again. Finally, with a scream, Cornelia came and came hard. Lelouch returned the favor and pulled out of her.

He then turned around, as C.C slid further down on him and took him in her mouth. At the same time, Kallen's lips met Lelouch's.

When C.C had gotten herself a salty drink, she pulled Kallen off Lelouch and put her lower. Kallen plunged herself down on Lelouch, as C.C caught his head between her legs. Soon he was eating her out.

The exhausted Cornelia lay there beneath them, like a second bed. A final show of Lelouch's dominance. Until she was pulled back into it.

At last Lelouch lay in the bed, on top of Cornelia, with Kallen and C.C on either side of him. Cornelia struggled to speak. "What… what will happen to me now, Master?"

"A good question, sister," said Lelouch. "I can't make use of your skills as a pilot or strategist in front of the black knights. So I've got a final fate that's a bit more... karmic.

"I'm making you into a morale officer."

Later the Black Knights were throwing a party. The reason was to celebrate their victory over Cornelia Li Britannia. The captured Britannian Princess herself provided the entertainment. The former Witch of Britannia gyrated and spun on a pole. She was clad in a violet bunny girl outfit. Kallen and C.C were on either side of her, clad in red and green bunny girl outfits respectively. As they worked, they eyed each other and Zero lustfully.

They were looking forward to tonight when Zero would have his way with them. Kallen could still pilot a machine, and C.C was still as useful as ever. But Cornelia's body made it impossible for her to pilot a knightmare. So what she was doing now was a fulltime job.

Cornelia Li Britannia was a living trophy of his victory.

And Lelouch had plans for a lot more trophies before he was done.

"It's good to be king," said Zero.

Author's Note:

This piece of erotic fiction is intended to fill a niche. There is plenty of erotic fiction about Code Geass. There is plenty of mind control. However, there are very few erotic pieces of fiction with Cornelia and Kallen as a pairing. Also, most of them feature Britannia being dominant. So I subverted that too.

This was the thought process which inspired this fic. I may add more chapters if someone wants them and you can feel free to leave a request.

Enjoy.