Author's Note: Welcome to a new story with Khan! Let me know what you think!

Disclaimer: I don't own Star Trek, but Fia is totally mine!

Warnings: There are some sex scenes and mild violence in this story. YOU HAVE BEEN WARNED!

Khan walked slowly between his two human guards. It was pointless to have them here. If he wanted, they would be dead on the floor before they even realized he had moved, that however, would give Marcus a reason to kill part of his crew. Khan glared at the men. Who would have thought he the great Khan Noonien Singh, once ruler of more than a quarter of the planet, could be brought to heal, like a dog. Marcus wanted a war and his current weapons designer was too slow, that was where Khan came in. Marcus wanted Khan to help the project along.

A set of glass doors opened in front of him to reveal the strangest creature Khan had ever seen. She appeared human, but with a fox like tail and ears. Her hair and fur was a deep berry-red, almost crimson. If Khan didn't know better, he would assume he was staring at a kitsune of Japanese lore. She was so short; Khan surmised the top of her ears would only come up to his shoulder. She had been dancing to the music playing in the background as she worked and looked up when the doors opened; her forest eyes seemed to glow against her pale skin.

"Ah, you must be my aid …err… replacement… taskmaster… or whatever. Anyways welcome, welcome. This is my desk, don't touch it. Don't touch my tail either. The rest of the space is yours to do with as you wish. I like to have a little background music while I work. I hope the music doesn't bother you, because it's staying on. I'm a Furling by the way; don't let the ears, tail, or fangs freak you out. I don't bite unless you're an asshole. Tell me, are you an asshole?" She smiled at him, showing two elongated canines, her ears pointed straight up and directly at him; He only raised an eyebrow. She looked back at his guards. Khan wasn't sure how much of what she said was a threat and how much was a joke.

"You can go now, I'm sure Mr.…." she paused and looked down at her notes, "Harrison likes someone looking over his shoulder as much as I do. Shoo."

"Um... miss, we have our orders." One started.

"Fine you want to be like that, I'll give you till the count of three before I bite you. One…. T-" Both guards were out of the room as fast as they could go. They stationed themselves outside the door. Khan looked at the woman raising one eyebrow. How could such a little thing inspire fear with such a minimal threat?

"It's a long story, but threatening them keeps them out of my hair. My name is Mimiseekouamiboutsepatifia. You may call me Fia for short." Fia turned to her table and began tinkering again and swaying to the beat. Khan slowly approached the bench, his eyes on her tail which seemed to have a life of its own as it swung and twirled with the music.

"What have you designed so far?" he asked Fia as she pulled out her PADD bringing up several design specs.

"These are all non-lethal defensive weapons, to be used if earth or the federation ever gets attacked. Marcus pitches a fit every time he sees them, or when I bring him something new. He wants offensive weapons. That fool is looking to start a war." Her last sentence was grumbled softly, it was only due to his enhanced hearing that Khan heard it. She handed the PADD to Khan.

"You are being replaced because you refuse to make things that kill?" Khan asked slowly.

"Essentially yes."

"You are naive to think you can win war with only defense." Khan's gaze turned cold and Fia glared up at him.

"The point Mr. Harrison is not to start a war, especially one we have no hope of winning!" She snarled turning up the music so she didn't hear his voice. The glass doors vibrated from the level of sound, Khan winced as he walked away PADD in hand. Deciding on an empty table, as far from Fia as possible, Khan studied the designs. The designs themselves were brilliant. It looked like Fia had gone out of her way to make sure that the weapons couldn't be used to kill. It would only take a few minor modifications to make the weapons Marcus wanted from him.

The next few days went in much the same way. The guards would bring Khan in the mornings, Fia would threaten them, they would leave, and both would get to work. By the sixth day, the only communication between them had to do with the designs they were making for Marcus. Khan's curiosity had reached a breaking point. He had to know more about his companion.

"Why does threatening to bite them scare them so?"

"Not everyone here is a good person and most of those good people aren't here of their own free will, if you get into trouble they will turn a blind eye. The guards are sadistic bastards. They like to prove how tough they are by going after those they see as weak. A week after I was brought here, they cornered one of the other scientist, trying to rape her. I stopped them. They came for me after that. At first they came alone, one by one, then they started coming in groups, when they weren't strong enough alone. Even in groups they couldn't hurt me. I'm too strong, and my claws too sharp. The final time they came for me, they did actually get me pinned down. One got too close and I bit into his throat, ripping half of it away. My fangs can produce a potent acid when I choose, so part of his throat melted away before their eyes. The guards left me alone after that. I have no problems melting them all. Marcus protects them about as well as he protects the scientists from them." Fia did not look up from her desk as she answered Khan.

"Did you choose to work here?" Khan's voice was softer now.

"No. Did you?"

"No." for a long time there was silence.

"I'm sorry, John. I don't know what he has over you, but if I can help free you, I will." Fia still had not looked up from her work. Khan could only stare at her. She was freely offering help? The concept was odd to him.

"Khan."

"What?" Fia looked up startled.

"John Harrison is the identity Marcus gave me. My name is Khan Noonien Singh." Khan looked deeply into Fia's eyes. She nodded. Turning to her table she started typing vigorously on her PADD. Soon she pulled up his file.

"Wow, using you crew against you, that's a new low. Bring me your PADD, I'll upload an untraceable app that will let you look in and see your crew whenever you want." Khan handed her the PADD.

"You will teach me how to do that." He said as he accepted the PADD back.

"Hacking isn't something easy to learn, either you have the skill or you don't. As long as you understand that, I'll show you everything I know." Kahn nodded. And so the two began to work closely on the designs together. Khan was surprised how brilliant Fia was. Her mind was easily equal to his. She was very observant, and always aware of what was going on around her. He was certain her hearing was better than his, conversations he could barely make out in the hall, she seemed to hear clearly. But what he enjoyed most about her was her wicked humor. She rarely showed it, but when she did it amused him. Toward the end of their second month together, Fia brought an idea up to him.

"If we could smuggle your crew out in some of the weapons we build, you could finally get your freedom." Fia didn't look up from the phaser she was working on.

"And what of your freedom?"

"I can only be free is Marcus wishes it. I am Starfleet. If I leave without his consent, my entire career is ruined. I've been in Starfleet so long, I don't know what I'd do if I was tossed. Not to mention, he swears he knows the location, of a Furling colony. Even with all my hacking skills, I can't find any information in his systems."

"You don't know where the colony is?"

"No. My parents and I crashed on earth when I was little more than a child. We were on our way to the colony, I think."

"Where are your parents now?"

"Dead, results of the crash. I was adopted by humans, even have a human younger brother, although humans age so fast looking at us now, you'd think he was my father. He's in Starfleet too, an admiral, although he doesn't know what kind of work I do here. I sincerely hope he never has to find out."

"You do realize that there may not be any colony, he could be using that as a ruse."

"I know, but it's a chance I have to take. Don't you see? I'm completely alone. There isn't anyone like me. Have you ever walked down the street and have people point and stare? Some out of fear, others to poke fun. I constantly have to monitor my strength around people or I could accidently hurt someone. I have to know if there are others like me. I'm just so tired of being alone." Fia sighed and looked at Khan. "Let's get you and your crew to safety shall we?" they continued to work throughout the day. Any attempts Khan made to bring her escape into the conversation, she sidestepped or ignored. When it was almost time to go, Fia grabbed Khan's arm.

"Khan, you won't see me for a few days, maybe a week. Don't be alarmed. I'll return as soon as I am able." her ears were sagging down and her normal smile was missing.

"Why?"

"I can't explain it now, there's no time; I have to meet Marcus in a few minutes. But when I come back, I'll explain everything." Khan nodded and Fia smiled up at him. She turned and left the lab. She made her way through the halls and up to Marcus' office.

"Sir, you wanted to see me?" she asked entering.

"Yes, it seems you put in for a week off, stating tomorrow. Why?" He looked up from his PADD.

"How much do you know about Furlings sir?" She asked politely.

"Not much."

"To put it bluntly, every six months or so, Furlings go into a kind of heat, it's part of our mating and procreation cycle. With my strength, it's dangerous for humans to be around me. My animalistic side takes control and I try to kill everything in sight. There will be no reasoning with me; I won't be able to communicate with words. So I lock myself up whenever my time comes around. I don't want to hurt anyone."

"That's you reason? What kind of excuse is that? Get your ass to medical and get something to keep yourself under control. We start work on the ship in two days, I want you there." Marcus growled at her.

"But sir, you don't understand, I could kill someone."

"Man-up. That's an order. Your time off request is denied."

~OOO~

The next morning Khan was working alone in the lab when the doors opened. He glanced up and saw Fia. Her eyes were cloudy and her movements slow. She sat at her desk and it took her five minutes to start her PADD.

"Fia?" Khan called. Her head slowly turned to him. Her expression blank; her tail and ears droopy. She looked like a shadow of the woman she had been yesterday.

"What happened?" he demanded. She made no response so he crossed the space between them in a second and held her face in his hands. "Tell me what happened. Why are you like this?"

"Meds" it was a mere whisper and it seemed to take all her energy to even say. Khan glared and gently let her go her stormed to the lab doors.

"What did they do to Fia? How can she work in that condition?" he demanded of the guards.

"Orders are to make sure she gets her meds every morning for the next week. Get used to it." the guard shut and locked the door in Khan's face. He slammed his fist into the wall, leaving a dent. For the next hour khan tried to get Fia out of her medically induced state but nothing worked. Figuring he'd have to wait until the medicine wore off, he resumed his work, pausing every few moments to look back at Fia. As the day was drawing to a close Fia's eyes turned slowly from murky green to black. Khan watched the slow process, not sure what to make of it. Fia started to watch all of khan's movements a predator look in her eyes. Just as he was about to walk over to her and check on her again, the guards entered.

"Time to go" one guard said reaching for Khan, his arm stopped halfway when they heard a growl from the other side of the room. Fia was snarling and her ears were pinned back against her skull, almost impossible to see.

"What the hell?" the other guard slowly approached her hand raised. In the blink of an eye his hand was on the floor in front of him, his arm ended in a bloody stump. Fia stood before him, her hand painted red with his blood. Her movements so fast, it was a blur. The guard started to scream, only to have Fia's other hand swipe his throat, cutting his neck in half. Her claws shimmered in the lab light as she approached the first guard, slowly licking the blood off her claws.

"Whoa there, we're just doing our job, not hurting anyone. See your friend, John Harrison? He's fine, really." Faster than the guard could see, Fia's arm shot forward and into his chest and back out again, bring his heart with it. As he fell to the ground, she took a bite of his heart. Blood smeared on Fia's face as she ate the heart; she turned to Khan when she was finished. He had watched her savage attack in delight, he couldn't keep the smirk off his face. Finally here was a woman who could be his equal. Fia's hand swiped at his neck, with his speed and strength, he caught her arm mid swing. Khan could not understand why Fia was attacking him also.

"I am not some weak little human you can kill." He growled down at her. Her only response was to growl back. Her other hand came sweeping in, and Khan caught that hand too. He backed her up slamming her against the wall and held her hands above her head.

"FIA!" he called to her. She snarled at him trying to break free of his hold. Not sure of what else to do, khan leaned down until her as eye level with her. "Fia, I am not your enemy." He said calmly looking her in the eye. He did not blink or turn away. Finally Fia turned away and whimpered. Taking it as a sign she wasn't going to attack him, he let her go and stepped back. She looked at him briefly before pouncing him and knocking them both to the floor, her on top. She ran her claws up and down over his chest ripping his shirt and leaving shallow scratched on his skin in a few seconds. Khan rolled and flipped them over so he was on top, the shreds of his shirt falling away. He held her arms firmly at her sides. Fia's head reached up and she licked and sucked at the scratches on his chest. When Fia's tongue flicked one of his nipples he groaned.

"Fia, what has gotten into you?" he demanded as she licked her way up to his neck. She started to nibble his collar bone and wiggled beneath him. He could feel his pants tightening at her actions. Momentarily distracted by her mouth, he loosened his hold on her hands and Fia flipped them over again so she was back on top. She pressed her pelvis into his and pulled his face towards hers in a demanding kiss. It was full of passion, lust, and dominance. Khan could taste the blood in her mouth and he responded in kind, his tongue snaking its way into her mouth to duel with her tongue. She nibbled his lip as she rocked her pelvis again. Both of Khan's hand slid to her waist line and pushed her shirt up and over her head. Khan looked at her breasts for a moment before leaning up and pulling one nipple into his mouth, his hand coming up to massage her other breast. His other hand roamed to her back, he felt fur along her spine from her hair line down to her tail. As he rubbed her tail, she let out a loud half purr half moan. Khan slowly pushed Fia off him and stood, pulling her into a standing position as well. She growled at him and he smirked at her. He pushed her front half down on one of the tables and pushed her skirt up over her back side. One hand on her back to keep her bent over the table, his other hand went to her panties. Her stroked her slit feeling her juices soak through.

"So ready for me." He murmured as he pulled his hand away and used it to unbutton his pants and release his swollen cock. He rubbed the swollen head on the outside of her panties. "Is this what you want?" she whimpered and pushed against his cock. Grabbing her panties, he ripped them from her. He teased her slit a few times before entering her slowly. With his free hand he grabbed the base of her tail and began to pump into her, using her tail as leverage. She pushed back against him meeting him thrust for thrust. He pulled roughly on her tail and she growled at him. As their pace increased, Fia's growls got louder. She howled as her walls clenched around his member, with another quick thrust, he was spilling his seed into her. They stayed like that for a few minutes. Fia started to move first, wiggling trying to get off the table, Khan still had one hand on her back, pinning her. He stood back and let her up. Fia turn and looked up at him, her eyes still black. She put her hands on his waist and pushed his pants down to his ankles. Kneeling on the floor in front of him, she took his entire flattened cock into her mouth, a purr rising in her throat. The sensation causing him to gasp in delight and harden quickly. She licked up and down his shaft. Khan grabbed fistfuls of hair to keep her head there as she licked and sucked his cock back into life. Pulling her mouth off with a little pop she kissed his inner thigh before biting into him. He groaned at the sensation. She lapped up the blood before going back to his member and licking the mushroom head. Slowly she pulled his cock into her mouth. Khan pumped his hips, holding her head still as he fucked her mouth. Fia's hands snaked up, one to his butt, where she lightly scratched, the other to his balls, gently rubbing and massaging them. With one final lick Fia pulled herself from khan's fists, and away from his cock. He growled down at her as she stood lifting one leg over his hip, rubbing herself along his length. Khan reached down and picked her up, Fia pulled her other leg on Khan's hip, locking her ankles behind his back. He stood with her entrance just above his tip. Kneading her butt, khan slid her down onto him. Fia snarled grabbing his shoulders. As he stood there, Fia rocked her body up and down. Feeling another climax approaching Fia bit Khan hard just above his collar bone. He exploded into her with a roar while she sucked at the wound she had created. Khan pushed her against a wall and rammed into dripping pussy.

"Howl again, come for me Fia." He snarled into her ear, his thrust harder with each push. Fia howled as her walls clenched around him again. He continued to pump into her until her aftershocks had stopped shaking her body. He looked into her eyes breathing heavily. She looked up at him, her eyes still dark as midnight. A smirk play against both their mouths as Khan let her down and she pushed him down on anther table, climbing on top, scattering equipment everywhere.

~OOO~

The next morning Fia awoke groggy and a little sore. She tried to remember what happened. She was drawing a blank, in fact, she couldn't remember anything after getting the hypo spray to 'calm her animalistic side' as the doctor had put it. Had she lost a night or an entire week? She tried to sit up, but there was something heavy around her middle. She opened her eyes. The first thing she noticed was the weight across her middle was an arm and she was naked. The second thing she noticed was she was in a lab, her and Khan's lab she thought but it was destroyed, equipment, PADDs, and broken prototypes scattered all over the floor. The last thing she noticed was blood. She could just make out two bodies lying behind one of the tables. She took in a deep breath, she had killed. Her body started to shake. She barley registered the movement behind her until a pair of lips touched her neck in a gentle kiss. Fia turned quickly and saw Khan, behind her. Her eyes wide in shock, what had she done? How was he still alive? She watched at the last traces of a bite on his collar bone disappeared into nothing.

"You're not human." She whispered.

"I see your eyes are green again." Khan smirked at her, brushing a piece of hair out of her face. Her stating the obvious amused him.

"My heat is over." She mumbled. her eyes widened. 'My heat is over?' She repeated to herself. 'But that means… oh god what did I do?'

"I'm sorry I have to go." She pulled herself from khan's hold and grabbed her skirt and shirt from the floor; quickly throwing them on.

"Fia, talk to me." It was a command, no less. Fia looked at Khan, her entire form shaking.

"I killed people! This is why I wanted to disappear for a week so no one would get hurt! Why wouldn't he listen? The only reason you're alive is because you aren't human!" tears started to flow down her face. Khan was up in an instant and pulled her into his chest.

"Fia they were nothing, don't waste your tears on them. Tell me, it's been one night, if your heat is over now, why did you need a week off?" Khan knew the answer but he wanted her to say it, he needed her to say it, to admit it out loud.

"The only way my heat could end early is if I became pregnant." She couldn't look at him and kept her face buried in his chest. Khan's hand snaked between them to lie against her stomach.

"You, both of you, are part of my crew. Fia, you will never be alone again. You are mine, you never have to worry about holding back with me, I can take your strength. Last night should be proof enough of that." Khan kissed the top of her head.

"I really have to go." Fia pulled herself from khan and ran from the room. Khan pulled on his pants and was met at the door by four armed guards.

"I must say that was quiet a show, better than any porno I've seen. Who knew you two could go so long?" One smirked as they led Khan back to his cell.

~OOO~

Fia burst into Marcus's office. Her hair all over the place, dried blood on her face and hands still. Marcus looked startled at her appearance. "I TOLD you I would hurt someone. Why didn't you listen, now two are dead! And thank the goddess Khan isn't human or he'd be dead too. Why didn't you listen to me? Why?" Fia sobbed and collapsed into one of Marcus's chairs. Marcus paled when she not only said Khan's true name but also that he wasn't human. Taking a deep breath Fia looked at Marcus.

"I want out of 31, and away from you. For good. How many more people will I kill because you won't listen to me? How many more will die because of the weapons I build for you? I don't ever want to come back here." Fia stated her entire form shaking. Marcus knew he had pushed her too far.

"You leave and the Furlings disappear too. You'll never get the location of their colony. You know section 31 is classified, you leave and your security clearance will be revoked." Marcus toyed with the idea of having an accident befall her, but shook his head. Too many people already knew she worked for him in 31. And he'd be damned if he let Pike stick his nose into Marcus' work, trying to figure out what happened to his precious sister.

"I understand sir, and I'm willing to lose my security clearance, and everything else." Marcus nodded; an idea of how to solve his problem of what to do with her coming to mind.

"I'm assigning you to the USS Enterprise. She should be coming earth side in any day now. Pack your belongings, the orders will be finalized by this afternoon."

~OOO~

When Khan was allowed back into the lab, Admiral Marcus was waiting for him. The bodies had been removed, however everything else was the same. The room still smelled of death and sex, Khan could not wait to see Fia again.

"Imagine my surprise when I heard what my two weapon specialists were caught in here doing. I was just going to separate you, but it would seem as if little Fia was pregnant and carrying an augment baby. Just imagine what the scientists could learn from a half augment half Furling fetus. I've heard they've already made a few discoveries with the furling." Marcus stood and walked towards the door. "Keep in mind we still have seventy-two pure augments if the scientists get too bored and next time you feel the need for female companionship, remember Fia. I'm sure you'll meet her again, in another life. The scientists assure me she won't live through what they have planned." Marcus was out the door before Khan could reach him. Khan pounded on the door and walls trying to get at Marcus until he was out of sight. Was Marcus telling the truth? Were they really going to experiment on her and their unborn child? Would they really kill her after they were done? Memories of his own days as a lab experiment coming back to him. Khan roared his anger to the world. Something inside of him snapped. All he had left was his crew, and by god, he would save the rest of them any way possible.

~OOO~

Kirk waited on the dock outside the Enterprise as his crew went to their two day shore leave. He smiled as he looked down his list of new personal to the Enterprise. It would be interesting to see how Spock would react to the woman who had out- smarted his program.

"Spock". Kirk called seeing his first officer walk by with Uhura.

"Yes Captain?" Spock turned towards him.

"Did I ever happen to mention how I reprogrammed the Kobayashi Maru test?" Kirk smirked up at his friend. Uhura looked a little unease next to Spock; she had introduced Kirk to the programmer.

"No captain."

"Come lets go meet her."

"Her captain?"

"The woman who not only reprogrammed your simulation, but is the best engineer I know."

" 'Old on a wee minute cap'ian. I thought I was the bes?" Scotty teased as he walked past.

"Don't listen to him Monty; you're a much better engineer than I am." A soft voice called. The four looked down to a smiling Furling. Kirk reached down giving her a one armed hug. Scotty chuckled at her.

"Finally come to join my crew Fia?"

"I wouldn't miss it for the world Jim. Hello you must be commander Spock. Your program was truly a master piece, I wasn't sure I'd be able to hack it. It will be an honor to work with you. Uhura, it's been too long. We'll have to catch up sometime soon! By the way, I've heard Leonard McCoy is the best surgeon in all of star fleet; think I can meet him too?"

"You come to the best ship in the fleet, captain by Starfleet's finest and you want to meet the doctor?" Kirk smirked down at her.

"Of course, I need to learn all your new tricks. Don't want to fall prey to your ways and land in your bed." Fia winked as Kirk laughed. Spock rose one eyebrow at the two.

~OOO~

"Bones! There's someone here I'd like you to meet!" Kirk pulled Fia into the med bay, refusing to let go of her hand, even when he stopped before he doctor.

"Bones?" Fia asked.

"Yes, that's McCoy here. Bones, this is Fia." Kirk let go of Fia's hand so she could shake McCoy's.

"Thanks for the introduction Jim, but I have a feeling the conversation … Bones? And I will bore you. Can we catch up in a bit?" Fia smiled up at Kirk.

"Sure." Kirk ruffled her hair before heading out.

"So what do you want to talk about?" Bones chuckled at how easily Fia had played Kirk.

"I am one of the new crew to join the enterprise and I have a certain medical condition that I wish to discuss. Tell me Doctor, how much do you know and understand about Furling's pregnancies?"

"Not much. If I may ask, is the father Furling?"

"No and he's… no longer in the picture. From what I've read about human pregnancies they seem about the same. Furlings carry for roughly fifteen months, instead of forty weeks."

"I'll read up on what we have, concerning Furling, also review your medical file. I'll need the father's medical history too. Can I have his name? I'll discreetly look up his medical records."

"Dr. McCoy you must promise me, if I tell you his name, you will never reveal it to anyone."

"Sure, his name will stay between us." Fia watched Bones for a moment deciding on what she could tell him.

"His name is John Harrison, and his file will be classified, especially his medical history. I'm not even sure if anything you'd be able to see would be the truth. My last mission was top secret one, one that I'm not allowed to discuss. John is still on that mission. Until it ends, his file will remain classified." Whatever Bones thought she was going to say, that wasn't it.

Author's Note: Don't forget to review!