I own nothing of Doctor Who, only my OC and any others that pop up in this story.
Reading a bunch of fanfics, I was desperate for a character that was darker and slightly grey in their morals, who would challenge the Doctor on doing what was right, or what would end up with a better outcome. Someone who wasn't exactly a good person, nor wanted to be. So, I wrote my own. Please leave a review on any suggestions and thoughts you have on the story. Thanks x

Chapter 1 - Sage and Rose

The air was hot and her skin sweaty as the brunette danced in the middle of the floor with the two men she had spotted early on. One behind her, grinding up against her ass as the other held onto her hips in front of her, the two friends grinning at each other from over her shoulders as they danced with the supposedly intoxicated girl. The blonde in front of her dipped his lips into her neck as he sucked, her breath hitching as he bit down. The one behind watched closely as he felt himself get harder, the drink and drugs he'd been taking all night making his vision blurry and speech slurred.

Turning to the one behind, she twisted her head to kiss him, claiming dominance over the man. As she pulled away, she smirked seductively before speaking in his ear. "Why don't we all go back to yours?"

Repeating what she said to the other, the two are excited to get the girl back to their shared flat and the three leave the nightclub in a daze. The girl is eager to be out, the blinding lights and loud bass harsh on her sensitive senses. She drapes herself over the two as they catch a taxi back to theirs and drags the two up to their flat as they struggle to open the door with fumbling hands.

The blonde grabs her by her hips as he forces his tongue down her throat, hand grabbing her straightened dark brown hair as she grinds up against the male. She moans when her grinding forces her tight red dress to travel up and her bare pussy drags across his harsh jeans, the denim providing the perfect amount of friction. The men swap, the second already having stripped to his boxers as his flatmate does the same.

He pushes her up on the kitchen counter and roughly pushes his fingers against her. She rolls her eyes back as she moans, and he captures the sounds in a long kiss. The other man joins him as he handles her breasts from behind her as they move to the black leather couch a few steps away.

"Are you going to be a good girl for us?" The blonde groans from behind her as she puts her hand into his boxers and strokes him where he needs her most as they all kneel on the sofa.

She doesn't reply as she smirks and tilts her head back against him as the man in front moves his lips down her body, having pulled the tight dress off as she kneels bare in between them. His head goes between her thighs as she moans loudly, his tongue darting in between her folds. Her ice blue eyes watch him in anticipation as he eats her out. Still jerking the other off behind her, she whispers for him to come to her side as she looks into his eyes as the other man is desperately licking her folds with a skilled tongue.

As her cold eyes match the blondes dull brown ones, her pupils dilate as she watches the man lose tension in his body and he focuses on nothing but her gaze. "You will not scream, you will not be afraid. You will allow me to bite you and you will enjoy it." She speaks in a low voice, only heard by the two of them as she compels the man. She moves one hand up to tilt his chin as she carries on stroking his hard cock. Tilting his head to the right, she leans into his neck as she senses the carotid artery pulsing beneath his skin. With a snarl, she bites down, fangs sinking into the skin and swallowing the blood that meets her mouth.

The blonde moans as she does this and she quickens her hand on his cock. The one between her legs inserts a finger into her as he sucks her clit and watches the two with an expectant gaze, not aware of the blood sharing occurring. He comes up then and sucks her neck as her other hand goes down towards his straining cock. As he's focussed on leaving marks on her neck, she pulls away from the blonde and watches for a second as the blood drips from his neck and down his chest. He moves behind her then as he fingers her from behind, and she pulls the unaware man from her neck and quickly places her hand on his mouth roughly as he comes face to face with her. His eyes are wide with fear as they take in the blood dripping down her mouth and onto her large breasts, the large fangs tinged with red and the black veins underneath her eyes which are now void of any white and red as she watches him hungrily.

"You will not scream, you will not fear me. You will allow me to feed from you and you will enjoy it." She speaks as her pupils dilate, alive with a hunger he has never seen. He nods imperceptibly as the compulsion takes place and he grins excitedly as she comes down to him and instead of biting him, kneels as she comes to lick his cock. His eyes close in bliss and the blonde from behind moves himself in between her slick folds before sliding into her wet heat.

She moans around his cock as one takes her from behind and the other tangles his hands in her thick brown hair. She smirks around him as she moves her tongue and the three moan as they begin to reach their climax. The blonde pounds into her as she moves away from the others cock and mouths his thigh before biting as the blonde goes faster and harder, chasing his climax. Her fangs sink into the tanned skin beneath her and blood pours into her mouth as she swallows greedily on the rich blood, full of alcohol and drugs.

The blonde moans loudly as he releases inside her with a sharp thrust, her hips pushing back onto him hard. He pulls out dazed after a few minutes and falls back against the sofa's cushion as she releases the others thigh and comes up as she sits in his lap, blood dripping down her chest. He slips his cock into her wet heat and the two groan as he begins moving her up and down on him. She bites into his neck then as he fucks her from underneath and the other comes to play with her clit from behind. After a few minutes, he comes inside her, leaving ropes of cum on her walls and pulls out of her once she stops feeding from his neck.

The three pant as they continue to finger her, making her cum on their hands before they all collapse in exhaustion, the two men panting as they lay there dazed and drunk and the brunette smirks as she licks the blood of her fingers and their chests.

Jumping up, she makes her way to the bathroom, walking naked in the room as the two men watch the confident woman with hungry gazes and smirk at each other as they catch each others eyes. As she enters the bathroom, she flicks the light on, lip curling in disgust at the mess but it's whats expected when two males in their twenties live together. She rolls her eyes as she sees herself in the mirror, straightened hair a mess and blue eyes hidden by the red sclera of her true face.

Tidying herself up from the mess, she comes back to the lounge as the blonde asks a question as she jumps in between the two. "What are you?" He whispers as his gaze is stuck on the now fangless mouth.

She ignores him as they sit in silence for a minute before she jumps up and grabs her dress, throwing it on and smoothing out the bunched fabric. She bites into both her wrists then and offers it to the two men as she watches them. "Drink." She compels and they shoot to catch the red liquid falling from her pearly skin. As the broken skin on her wrists heals, the two pull away disappointedly, not noticing the bites on them also healing. She watches with morbid fascination as her bites heal from her blood. "You will forget about me biting you or sharing blood. We had a heavy night of fucking and drinking before I snuck out sometime in the morning." She compels the two as they nod. "Now, go clean yourselves up, go to bed and sleep." The two quickly pull themselves up as they silently make their way to the shared bathroom and she sighs as she grabs her heels and leaves the room silently, walking out of the flat bare foot and satisfied after feeding.

It's early when she leaves, about 3 am, as she makes her way to her flat on the other side of London and uses her speed to make it there before stripping and jumping into bed, quickly falling asleep in content.

The next night...

She spends her night out again as she looks for someone to feed off and is walking towards her favourite nightclub as her ears pick up on an unusual wheezing sound coming from Westminster bridge and as she listens to the strange noise, it stops suddenly, only to be followed by what she can only call an intoxicatingly addictive scent. The smell reaches her nose as she gasps at the strength and deciding that tonight she'll feed from elsewhere, she speeds away to where the smell is located and, hiding in the shadows, comes across an old 1950's Police Box and two people, an older man and a young girl. The scent trails from the man to her as she breathes in deeply, and realises that the scent is impossibly not human as she thinks over if she had ever come across it or anything like it before.

Fighting the urge to tear his throat out and drain him of whatever heavenly substance flows through his veins, she leans up against the blue box, not noticing the tender touch of the box on her mind as she focuses on forcing down her hunger and listens in on the conversation.

"I lost the signal. I was so close." The man exclaims as he walks further towards the bank of the Thames. Her eyes narrow in on the man in the leather jacket, looking him over at his large ears and bald head. Not usually her type but for blood like that? She'd settle for it.

"We've moved. Does it fly?" The blonde girl asks as she watches the man with confusion. Great, dessert. The brunette hidden in the shadows thinks as she smirks towards the human girl.

"Disappears there and reappears here. You wouldn't understand." He waves off as he thinks to himself. The brunette watches on in confusion as she struggles to understand what they mean. As much as she wants to drain the two, especially him, her curiosity at the strange conversation and the earlier metallic wheezing wins out for now.

"If we're somewhere else, what about that headless thing? It's still on the loose." The blonde wonders as her eyes widen at the thought of whatever this supposed headless thing was.

"It melted with the head. Are you going to witter on all night?" The older man says in annoyance as he walks away from the girl.

"I'll have to tell his mother. Mickey. I'll have to tell his mother he's dead, and you just went and forgot him, again! You were right, you are alien!" The blonde screams as the brunette raises an eyebrow towards the creature. Alien... she thought. It can't be.

"Look, if I did forget some kid called Mickey..."

"Yeah, he's not a kid." The blonde snarks as the older woman rolls her eyes at the tone, already annoyed with her attitude.

"It's because I'm trying to save the life of every stupid ape blundering on top of this planet, all right?" The man announced as the woman hidden narrowed her eyes at him, disliking the way he spoke down towards humans as she caught a glimpse of an obvious superiority complex rather quickly.

"All right."

"Yes, it is!" He argued before huffing and turning around, rubbing his hand over his face.

"If you are an alien, how comes you sound like you're from the North?" The blonde questioned, coming nearer to the strange creature.

"Lots of planets have a north."

"What's a police public call box?" The girl questions again, frustrated at the lack of knowledge she had on the situation as she eyes the blue box, missing the figure stood by it.

As the woman in the shadows tilted her head at the question, a seductive dark voice came from the shadows beside the blue box, startling the pair. "It's a telephone box from the 1950s." She mentions as the man says, "It's a disguise." before moving his head towards the figure leaning up against his ship.

"Who the hell are you?" The blonde questioned as the man narrowed his eyes at her.

"Oh, not another human..."

"I should be asking who you two are... I was coming from the pub when I heard this strange noise and come across you two... One who seems to claim he's alien." She states as she watches the man closely. "By the way, you should both probably be a bit quieter when speaking about things I'm sure you don't want everyone knowing."

"I'm Rose. Rose Tyler." The blonde says as she watches the brunette move forward, refusing to move her eyes away from the man as her ears picked up on an unnatural heartbeat.

"And you?" The woman asked the man, as his eyes roved her body dressed in the skin tight black dress in a way that for once, wasn't leering or sexual.

"The Doctor." He answered quickly, unsure at the new woman who didn't seem to be too shocked at his announcement of being alien. "Just the Doctor. And you are?"

As she just goes along with the name, not really thinking his lack of an actual name mattered right now, she replies. "Sage Evans."

"Well, I'd say nice to meet you Sage but right now, I don't really care." The Doctor replies as Sage scoffs at him and Rose whirls on him with an outraged gaze.

"Okay. And this, this living plastic. What's it got against us?" Rose said rudely, not particularly liking the mans offhanded remarks so far.

"Nothing. It loves you. You've got such a good planet. Lots of smoke and oil, plenty of toxins and dioxins in the air, perfect. Just what the Nestene Consciousness needs. It's food stock was destroyed in the war, all its protein plants rotted, so Earth, dinner!" The Doctor exclaims walking further away from the two girls.

"Any way of stopping it?" Rose asks as she comes to stand beside Sage, looking over the beautiful woman who watched the man with a predatory gaze, not that either of the others had noticed this particular fact.

Sage narrowed her hearing onto the twin hearts in the alien Doctor and felt her fangs grow out at the almost inebrating smell the blood rushing through his veins gave her. "Anti-plastic." The Doctor says as he holds up a tube of blue liquid.

"Anti-plastic." Rose remarks as she looks at him ridiculously.

"Anti-plastic. But first I've got to find it. How can you hide something that big in a city this small?"

"Hide what exactly?" Sage wonders, coming closer to the delectable smell radiating off the large-eared man.

"The transmitter. The Consciousness is controlling every single piece of plastic, so it needs a transmitter to boost the signal." The Doctor explains as the woman comes closer.

"What's it look like?" Rose wonders, following the pair.

"Like a transmitter. Round and massive, slap bang in the middle of London." He explains as he looks around, trying to find the large transmitter. "A huge circular metal structure like a dish, like a wheel. Radial. Close to where we're standing. Must be completely invisible."

Sage turns around as she looks towards the South Bank at where the famous London Eye is stood, a huge circular metal structure, just like the Doctor said. She watched it for a few minutes as the Doctor mumbled and Sage turns to the blonde girl who was currently glued to her side as she smirked and pointed towards the landmark. As the blond stares, Sage watches as the penny drops and she grins as she turns to the woman and she herself watches the alien speak to himself.

The Doctor turns as he sees the pair, one grinning and the other smirking and questions them, "What? What is it? What?" as he turns towards the south bank, he finally catches on and Sage can hear his heart skip a beat in excitement as he eyes the London Eye. "Oh. Fantastic!" He says in his northern accent as he runs across Westminster bridge and the girls follow him behind, Rose running and Sage wishing she could go a bit faster, she did always hate to go at human speed.

"Think of it, plastic all over the world, every artificial thing waiting to come alive. The shop window dummies, the phones, the wires, the cables." The Doctor explains as Sage tries to catch up, interested in whatever seems to be happening and even more so at the prospect of aliens.

"The breast implants." Rose snickers as the Doctor looks unimpressed at the immaturity and Sage watches on as she shakes her head.

"Still, we've found the transmitter. The Consciousness must be somewhere underneath." He finishes before Rose points towards a manhole entrance close to them.

"What about down there?" She asks as the Doctor and Sage turn towards the entrance at the bottom of the steps.

As the three run down, the alien opens up the hatch and they come face to face with a red light emanating from the entrance. Sage tilts her head slightly as she listens in and hears some bubbling from beyond the entrance and the whimpering of a boys voice.

She follows the Doctor behind closely as the blonde sticks to her back and they climb down a short-ladder into a brick built area with chains strewn about everywhere. Walking through a door, they reach a multi-level chamber and run down a flight of steps. Sage sees a vat filled with a golden liquid, which looked viscous and as if she'd be stuck when she fell in. She felt the heat radiating off whatever was inside it and barely heard the Doctor announce whatever it was over the smell of burning plastic coming from the vat and catches the sight of a young man whimpering.

"The Nestene Consciousness. That's it, inside the vat. A living plastic creature." The alien explained as he watched in wonder.

"Well, then. Tip in your anti-plastic and let's go." Rose demands as she's eager to leave the strange place and Sage watches the interaction carefully.

"I'm not here to kill it. I've got to give it a chance." The Doctor states and Sage watches him in disappointment as she gets a vibe of pacifism of the older man. How disheartening... she thought, Here I was excited he'd be a bit of a bad boy. The Doctor walks down towards the seething vat. "I seek audience with the Nestene Consciousness under peaceful contract according to convention 15 of the Shadow Proclamation." The plastic in the vat flexes and makes some inhuman sound as Sage moves closer and peers interestingly at the conversation happening between the two alien species currently. "Thank you. If I might have permission to approach?"

"Oh, God! Mickey, it's me! It's okay. It's all right." She hears Rose shout as she finally notices the man curled up in the corner.

"That thing down there, the liquid. Rose, it can talk!" He exclaims as he shakes in shock, the smell coming from the adrenaline and fear running through his body appealing to Sage as she already struggles to keep her fangs to herself and watches the aliens artery for a second as his twin hearts pulse in his body.

"You're stinking. Doctor, they kept him alive." Rose announces as the other two look on uninterested.

"Yeah, that was always a possibility. Keep him alive to maintain the copy." He throws out.

"You knew that and you never said?" The blonde exclaimed from the side of who Sage was guessing was Mickey who they thought had been dead at the beginning.

"Can we keep the domestics outside, thank you?" The alien says as he continues walking closer and Sage stays on the sidelines, being wary of whatever it was that brought them all here. "Am I addressing the Consciousness? Thank you. If I might observe, you infiltrated this civilisation by means of warp shunt technology. So, may I suggest, with the greatest respect, that you shunt off?"

Sage rolls her eyes in humour as she scoffs at the terrible pun, just missing the light smile on the Doctors face but she quickly looks shocked and unprepared for the face that begins to form in the vat of plastic. " Oh, don't give me that. It's an invasion, plain and simple. Don't talk about constitutional rights. I am talking! This planet is just starting. These stupid little people have only just learnt how to walk, but they're capable of so much more. I'm asking you on their behalf. Please, just go." The alien argues with the mumbling liquid and Sage sees and hears the mannequins as they take a hold of her and the Doctor and hears the blonde scream his name. One of the animated mannequins that had a hold on the Doctor takes out the blue vial he called anti-plastic out of his pocket as they hold it up to the face in the vat. "That was just insurance. I wasn't going to use it. I was not attacking you. I'm here to help. I'm not your enemy. I swear, I'm not. What do you mean?"

Sage looks confused at the one-sided conversation, trying to understand how he can understand what's being said. Above them, a door slides to reveal the police box from earlier. "No. Oh, no. Honestly, no. Yes, that's my ship. That's not true. I should know, I was there. I fought in the war. It wasn't my fault. I couldn't save your world! I couldn't save any of them!"

"What's it doing?!" The blonde exclaims as Sage recognises the grief in his eyes and almost feels sorry for wanting to tear his artery out... almost.

"It's the Tardis! The Nestene's identified its superior technology. It's terrified. It's going to the final phase. It's starting the invasion! Get out, Sage and Rose! Just leg it now!" He shouts as the plastic roars and Sage hears the girl phone her mum from her spot where the couple have huddled together and completely terrified.

The Nestene Consciousness starts throwing energy bolts around. "It's the activation signal. It's transmitting!" The Doctor shouts. The London Eye lights up with energy on the outside but Sage has to roll her eyes at the teenagers announcement of how it's the end of the world.

The Doctor screams at them to go but looks on in confusion as Sage stands there calmly, looking around as the blonde and her boyfriend struggle upstairs. "No." He says just before the plastic says something Sage can actually understand.

"Timelord."

Sage, using her speed, rips off the arms of the mannequins holding her and pushes them to the floor before running over to the Doctor as his back is turned and kicks the two autons into the vat, the anti plastic vial going with them. The golden coloured Nestene screams and the sound makes her ears hurt as it turns blue. The Doctor holds onto her waist as she stands on the edge, thinking she was about to fall in with the momentum and not noticing the still pose she held. "Now we're in trouble."

Explosions start and the shop dummies stagger as they all fall to the ground, unresponsive and inanimate. The Doctor drags Sage towards the box he called the TARDIS and the group all rush inside. Sage looks around in awe as she walks further into the bigger on the inside box and catches the Doctors eye as he grins at her first time in the box. Outside, the TARDIS dematerialises as Sage hears that wheezing sound again.

"That sound. That was the box?" She questions the Doctor as he keeps a thoughtful gaze on the strange girl who piqued his interest.

"She's called the TARDIS." He tells her as she feels a comforting touch on her mind, struggling to not jump back in shock.

Sage shakes her head as she walks to the doorway, hearing the couple speaking about how they had moved the ship from outside the doors. "A fat load of good you were." Rose speaks up as she watches the Doctor stood in the doorway as Sage studies the outside of the TARDIS.

"Nestene Consciousness? Easy." The alien grins as he watches the trio.

"You were useless in there. You'd be dead if it wasn't for Sage." Rose mentions, eyeing up the strange reaction the other girl was having at all of this.

"Yes, I would. Thank you." He nods to Sage who smiles at him, but is still too busy thinking about the ship. "Right then, I'll be off, unless, er, I don't know, you could come with me. This box isn't just a London hopper, you know. It goes anywhere in the universe free of charge." He speaks to the two girls while staring at Sage deeply.

"Don't. He's an alien. He's a thing." Mickey states as Sage rolls her eyes and whispers 'rude', making the Doctors eyes light up in amusement.

"He's not invited. What do you think? You could stay here, fill your life with work and food and sleep, or you could go anywhere."

"Is it always this dangerous?" The blonde questions, looking at the box like it could solve all her problems and Sage watched her with a steady gaze.

"Yeah."

"Yeah, I can't. I've er, I've got to go and find my mum and someone's got to look after this stupid lump, so." She trails off as the Doctor turns to Sage, looking at her expectantly but shocked at the strange gaze she levels Rose with.

"What about you?" He asks her as she turns her ice blue eyes to him.

She silently weighs the decision as she thinks about it. From what she understands, this 'man' travels the universe and she would be lying if she wasn't bored stuck here on Earth. But she also wanted desperately to drain him of every drop of that mouth watering blood. She resolved herself that she could hold off on murdering him for a while, and let him show her what the universe has to offer before dropping her back to Earth and taking every drop he had in that body.

"Anywhere in space?" She asks as he nods enthusiastically. "I guess I could. Why don't you show me what the universe has to offer then Space-man." She walks into the box as he moves aside and she sees the happiness breaking through the permanent loneliness in his gaze.

"Okay. See you around." The Doctor says to Rose as he closes the door and the box disappears from her view but as she and Mickey make their way home, the box reappears as the Doctor pops his head out, Sage stood behind him with a grin. "By the way, did I mention it also travels in time?"

Sage narrows her eyes as she sees silent determination flow through the girl and a bad feeling courses through her as she realises what the Doctor hadn't.

"Thanks." She mentions to her boyfriend.

"Thanks for what?" The confused and still in shock Mickey asks.

"Exactly." She kisses her boyfriend on the cheek as she runs into the TARDIS, closing the door behind her.

The Doctor whirls around the central console as he plays with the various controls as Sage watches it all in delight. This was much more advanced than anything from 2005, even her own original time...

Rose grins at her as she sticks to her side and Sage silently decides to accept the girls friendship for now. The brunette doubted it would be for long as she smiled back towards the naive and innocent girl. Give it a few adventures and she'd be bored and hungry and would soon gorge herself on that delectable taste and the blonde as a desert afterwards.

She couldn't wait.