Disclaimer: i don't own Vampire Knight or its characters, i only own Ayaka and Shuhei.

The main story with Ayaka and Shuhei, I FINALLY STARTED WRITING IT!!!!!!!! ya can all thank Stebbins Stella for this, she gave me most of teh ideas and nagged me until i actually wrote it.

Enjoy!

Pure Water's Poison

Zero tapped his foot against the desk impatiently as he and Yuki stood in the Headmaster's room, Yuki looked slightly nervous as they waited for the Headmaster to come back with the newest editions to the Night Class.

"Why do blood-suckers away have to be late?" Zero said grumpily as he glared up at the clock. He looked around when Yuki didn't reply and noticed that she had picked up their files and was flicking threw them curiously.

"It says that they're twins," Yuki told him as Zero looked over her shoulder "they're travellers that have spent the last five years wandering on their own... that's weird, that's about all it says, nothing about their family or anything." Zero's eyes narrowed coldly, with vampires, this kind of lacking information often meant that they were dangerous, very dangerous. Zero clenched his fists angrily but didn't say anything.

At that moment the office door creaked open and Yuki hurriedly shoved the files back into the draw behind the desk. Headmaster Cross came dancing into the room with a big smile on his face, an expression which put Zero in an even fouler mood when he saw the creatures that entered behind the overly happy man.

The vampire that entered the room first was about the same height as Zero and also had silver hair, but that's where the resemblance ended. His obsidian black eyes scanned the room, quickly taking in and processing everything around him, a habit obviously developed out of experience, something which was also shown by the scar on the right side of his face. He was quickly followed by his twin, she was tall for a woman, not much shorter than her brother, she wore her silver hair in a lose bun with two thin plaits trailing either side of it and her bangs were held back by an emerald hair clip. Swirling black eyeliner and green eye shadow rimmed her deep dark eyes as she to scanned the room, Zero made a note that she was nowhere near as attentive to her surroundings as her brother.

"Ahh they are here! I told you they would be, you shouldn't have so little faith Yagari" Zero straighten up when his old mentor entered the room, he was slightly annoyed at himself for not expecting the vampire hunter to be there, especially with two new Night Class students.

"Hmmm, makes me wonder how the old codger lasted so long" the new girl said thoughtfully, Zero clenched his fists tighter, how dare she speak to his teacher like that.

"Watch your mouth, brat" Yagari said as he walked past her, a small smile that she didn't see spread across his face as he walked towards the school guardians.

"Introductions!" The Headmaster said quickly, trying to lighten the atmosphere coming off of Zero. "This is Ayaka and Shuhei Shimizu; they have been travelling for a long time and have come to live at Cross Academy at my request. These two are the guardians of this Academy, Zero Kiryu and my darling daughter Yuki Cross."

"Nice to meet you" Shuhei said, Ayaka nodded.

"Hi" she said after a shoddily concealed nudge from her brother. Yuki smiled warmly at them while Zero just glared, Shuhei looked back at him coolly, clearly not intimidated. Ayaka, however, glared straight back at him and was about to open her mouth and say something when Yagari quickly cut her off.

"Cross, why don't you take these two to the rest of the Night Class, I want to talk with Zero and the Headmaster."

"Yuki's not going on her own with those two" Zero said immediately, he glared at Ayaka especially, he didn't like her at all and he defiantly wasn't going to trust her with Yuki's life.

"Zero stop being so rude; you're in such a foul mood today, what's the matter?" Yuki's addition to the conversation made him hesitate for a moment, giving the female vampire the perfect opening for a replying remark.

"Pretty protective boyfriend you've got there, huh Cross-san," seconds later Zero's anti-vampire gun was pointed at her head.

"Zero!"

"Kiryu please! There's no need for that!" The Headmaster tried to stand between them but Yagari held him back, giving him a look that told him that they should stay out of the situation.

"Put the toy away boy" Shuhei said quietly, stopping what was obviously going to be a long rant dead in his sister's throat. "You don't know how to use it."

"I know everything that I need to know" Zero said as he turned the gun to the taller vampire.

"Even if you did there is no need for it here" Ayaka was fighting to keep her mouth shut, so much that her face was actually starting to turn white. The starring contest didn't last long, after a few seconds Zero turned away from Shuhei's black gaze and returned his gun to its holster. "Thank you, Cross-san, I think that its best that we leave before my sister causes herself some permanent damage," he sighed when he looked at Ayaka, who was having to hold her hands over her mouth.

"R-right! This way" Yuki walked out of the room as quickly as possible, Ayaka close behind her and Shuhei following. Zero let out a deep breath as they exited the room, he could feel both adults eyes on the back of his neck, warning him not to do anything stupid again. As soon as the door was completely closed Ayaka seemed to have a vocabulary explosion.

"WHO DOES THAT SKINNY LITTLE BRAT THINK HE IS!!??!! WE ONLY JUST MET AND HE POINTS A FREAKING GUN AT OUR HEADS!!!!!!! I'VE NEVER MET ANYONE WHOS SUCH A BITCHY, MOODY, ANGRY, OVERPROTECTIVE, NEEDS FREAKING ANGER MANAGMENT..." The Headmaster put his head in his hands as Ayaka's rant continued all the way down the hall, ending in a lot of profanities that he was generally shocked that she actually knew.

"That went well" Yagari said as the she-vampire's voice faded, "better than I thought it would." Zero slammed his fist on the table angrily, sending splinters of wood into the air as it cracked in half under his fists.

"Aaahh! Not my desk again!" The Headmaster cried.

"Who. The hell. Were they?" Zero asked through gritted teeth.

"Two vampires that Kaname has asked to attend the Academy, he, Yagari and I believe that they will be strong defenders for the school, especially with there being so much shifty activity being centred around here lately." The Headmaster replied, suddenly more serious than before. Zero turned on him angrily, unable to believe that they thought that after what had happened.

"Don't worry about Ayaka-chan," Yagari said, "she thinks and she talks before she reasons, consider yourself lucky, sometimes she doesn't think she just talks."

"Now that's a scary situation" the Headmaster said, shivering comically, "seriously, don't worry Kiryu, she won't hurt anyone and her little brother is there to keep her in check." Yagari threw a packet of blood tablets which Zero caught out of the air with startling speed.

"If you're so worried about Cross-san, go and follow them now, just be careful that Ayaka-chan doesn't see you, after that outburst I don't think you're exactly her favourite person at the moment." Yagari hadn't even finished speaking before Zero was out off the door and following after them.

"This is going to be interesting at least" the Headmaster sighed.

OOO

Aidou knew that he shouldn't have been sleeping, that class was going to start in a minute, but he was really too tired to care. He distantly heard the classroom door open and smiled despite himself when the scent of the woods reached his nose. Wait... how could it smell like the woods? They were inside the school. There was something else about the scent, something more familiar...

"AAAAHH! What is that She-Demon doing here!?!" Aidou shouted as he jumped out of his seat, he pointed at the silver haired she-vampire standing in the doorway; she grinned up at him and waved.

"Hey Petal-san, long time no see."

"Not long enough if you ask me!" Aidou snapped back. Ayaka's eyes narrowed and she bared her teeth angrily.

"That's not very nice; you could at least act like you're happy to see me. I would personally much rather see you getting your ass kicked right out that damn window but that wouldn't be very polite would it?"

"Like you've ever been polite!" Aidou yelped as Ayaka jumped up beside him and forced him to the ground, pulling his hair.

"I'm always polite! Take that back!!!" Ayaka shouted as she dug her knee into his stomach.

"GAARH!!! YEAH! LIKE THIS IS POLITE!" Aidou snarled as he managed to roll on top of her and started pulling her hair in return. Kain sighed and rubbed his eyes, Ayaka's presence making him feel exhausted already. He jumped over their table to avoid the squabbling vampire and walked down to meet Shuhei who was still standing in the doorway, also with a tired expression on his face.

"Shuhei-san, long time no see."

"Hi Akatsuki-san, sorry about her" Shuhei replied as he waved at his sister.

"Aidou-sempei! Ayaka-sempei! Please stop!" Yuki shouted as she entered the room a desperate expression on her face; she looked relieved when Kaname entered behind her.

"That is enough you two" both stopped fighting instantly when Kaname started talking, Ayaka with an openly annoyed expression on her face.

"Kaname-sama! She started it!" Aidou said childishly, pointing at Ayaka, who he was sitting on top of.

"Oh so mature" she replied sarcastically as she pulled back her leg and kicked him off of her, sending him flying across the room. Shuhei was beside his sister in an instant, holding the back of her uniform as she tried desperately to reach the other vampire.

"Please Onee-chan calm down. I can't believe that the first day we are here you manage to cause two fights in less than an hour."

"It's not my fault" Ayaka pouted at her brother as she crossed her arms, "they both started it."

"Shimizu-san" Kaname continued as he turned to her, "you and your brother are here at my request; I would appreciate it if you didn't cause too many fights with your class mates." Ayaka glared at the pure-blood and Shuhei tightened his grip on her; that was a fight he definitely was not in the mood to break up.

"Of cause Kuran-san," she said eventually through gritted teeth. Kaname sent Yuki of to see to her other duties then made his way across the classroom.

"Shimizu-san," he addressed Shuhei as he walked past, "I would like to speak to you later."

OOO

"What did you want to see me about Kuran-san?" Shuhei asked as the last of the Night Class left the classroom and returned to the Moon Dorm.

"I was wondering, if you would be able to keep closer control of your sister" Kaname replied smoothly. Shuhei's eyes narrowed and his voice came deceptively calm.

"I'm not sure that I understand what you mean."

"I asked you two to come here to help protect Yuki Cross, something that would not be easy if Ayaka causes fights with the likes of Zero Kiryu. Events like that would easily draw the attention and the curiosity of the Day Class, something that we would all rather avoid." Kaname turned to Shuhei as he finished, he met the vampires gaze, trying to stare him down.

"My older sister is loose cannon" Shuhei replied smoothly "you expect me to be able to keep a full check on her?" Kaname broke the eye contact first and turned to stare out of the window.

"Just make sure that she doesn't cause too much trouble."Shuhei turned and walked out of the room, when the door was firmly shut behind him he took a deep breath to steady himself and calm his barely concealed anger.

"It's not smart to sneak up on a vampire" Shuhei said as he turned to face the corner, "come out." Zero stepped out of the corridor and turned to face the vampire, as usual the expression on his face was not happy. "How much of that did you hear?"

"All of it" Zero replied, meeting and holding the older vampire's gaze. Shuhei gave him credit for it, there weren't many who could look him in the eye.

"Please be patient with my sister" he said after a moment's pause, "she finds it difficult settling into new situations, for obvious reasons, just give her some time and she'll calm down." Zero didn't say anything; Shuhei sighed and continued as he walked past, "you have my word that neither I nor my sister have any intentions of harming anyone here."

Zero loosened his grip on his weapon as the new vampire walked, he didn't know why, but he had the feeling that he could hold this one to his word. He glanced at the door to the classroom before turning and walking away, time for his own classes to start.

Aidou and Ayaka's fight was so fun ta write.

U no the drill, plz review