Summary: Nikki is a mentally insane murderer with lingering human feelings. She is blackmailed and forced to work with the Joker to take down Batman. But no crazy girl can work with the Joker without falling for him. Joker/Other female character. Warning: Harsh violence and language.

Disclaimer: I own no one but Nikki and the plot.

Rated M for language, sexual themes, and violence.

Author's Note: This is a fan fiction purely for entertainment purposes. I hope everyone enjoys it. If it sounds Mary-Sueish I apologize, but it is a fan fiction. Reality does not necessarily completely apply. I'm writing for the fun of it. Constructive criticism appreciated. My Joker is loosely based on Nolan universe, though I am making him more human than he really is.

The Insanity of the Insane

Nikki slammed her hand down hard on the metal table. The steel creaked from underneath. Her fiery orange bangs fell in her face as she glared at the man across from her. Maroni just wasn't getting it.

"What do you want me to say, doll? You had some tough luck," the mobster said with a shrug though he hid a hint of a smile.

"Tough luck? Tough luck," Nikki whispered in a deadly tone. She was covered in cuts and dried blood and all this jackass had to say was tough luck?

The middle age mobster sighed and clicked his tongue with a small chuckle. "Not that you didn't do a great job. You really are one of the best heartless bitches I have ever met. You brought us the heads of three traitors and then some," he gestured to the bloody bag that still had some round shapes protruding from it.

Nikki held up one of the dismembered heads that sat by her hands. Blood was still dripping from the fresh wound. Her voice was low as she kept her calm. "But this little guy right here had friends...friends you sent. I don't appreciate being sent on a job and then almost killed by some lowlife fuckhead because you hired him for the same job! Or did you happen to forget that I'm the one who actually works for you?"

Maroni smiled at her anger. "I know you weren't almost killed, Nikki. You just don't like to get your hands dirty. You should thank me for the challenge I presented you...you know you enjoyed it," Maroni's eyes twinkled as he grinned.

Nikki kicked a chair over as she stepped away from the table and turned away from Maroni so he wouldn't see the smile inching on her face. She didn't want to admit it to this dipshit but she did enjoy herself. The doctors at the Arkham Asylum told her she had anger issues and "repressed feelings" that she took out on anyone she deemed as unworthy of living. According to them, she liked to play god. Nikki disagreed. She rather think of herself as a goddess toying with mortals. When they were bad, they should die.

But that was a while ago. Crazy Dr. Crane let her loose from that hell hole asylum. He wanted to see her condition progress when she was free. After all, she was only twenty one...a young killer.

Maroni seemed to sense her mood change. His voice became much sweeter. "You know no one can beat you, angel. You're my little death dealer. Always have and always will be."

Nikki turned around and gave Maroni an annoyed look. Angel was far from any pet name she wanted to be called. She was the exact opposite of an angel. Her dark jeans and black halter top looked normal enough, but every part of her screamed freak. Her red hair was pulled back but sticking out in all directions. Her skin was covered in scars from when she cut herself. But it was her face that was far from being a cherub. She could have been considered beautiful if only for her lips. Her bottom lip had a row of scars extending along it. It was like someone had once decided to chop her lip like they would chop a carrot. Small black stitches stretched along it with skin growing around, an obvious indication Nikki chose to never have the stitches removed. She played the part of a mentally insane person well.

Maroni smiled at Nikki and continued with his sweet talking. "You're my best little slicer...and I know you're just dying to help with our Batman problem..."his voice trailed off as his tone became more persuasive.

Nikki opened her mouth to respond but was interrupted by a high pitch cackle. "I'm sure all of you are just dying to get rid of the Batman," a sing song voice laughed as a tall man walked into the room. His purple suit and makeup clad face immediately gave away his identity.

The Joker seemed more sinister in person than his video appearances from the television. His white makeup was fresh and un-smudged, providing the perfect contrast to his cold black eyes. His scars stretched up his cheeks in a grin that never died. Nikki unconsciously slid her tongue over her mutilated bottom lip. The Joker's eyes settled on her with a look of curiosity and amusement.

Nikki inwardly flinched. She was crazy, she knew that, but she was nowhere near the level of a sick fuck like the Joker. He couldn't be controlled. She found it both fascinating and disgusting at the same time. She believed chaos was beautiful to a certain extent, but sometimes rules applied. Maroni had trained that idea in her. He tamed her.

Maroni straightened his tie and addressed the Joker now. "You said you could get rid of the Bat. We've decided to hire you. You'll get your half when you get the job done," he said in a flat tone, his voice losing any cheeriness to it.

The Joker held up his hand to the mob boss and shook his index finger. "Now now, Maroni. You're being rude. You should, uh, introduce me to your friend here before we talk business."

Nikki scoffed. She flipped her bag over so three more heads fell like apples on the table and floor. "Maroni and I aren't friends. Sometimes I just bring him gifts."

Maroni ignored the comment. "The girl is Nikki. She works for me. You two can probably relate on a couple levels," he laughed along with the thugs sitting behind him.

Nikki glared at him. Maroni was either talking about their scars or the fact they were both insane. Either way she did not appreciate being paired up with the clownman. The Joker's tongue darted out of his mouth as he licked his lips. "Interesting set of lips there, girly. Did you hurt yourself playing with knives?"

Nikki picked up her bloody empty bag and smirked. "Let's just assume both you and I got our scars the same way."

The Joker giggled and cocked his head to the side as he walked around her. "Maybe I can give you a matching set of scars just like mine."

Nikki's smirk fell and her eyes narrowed at the threat. She whipped her knife out from her butt pocket and held it at her side. The Joker's laugh echoed throughout the room.

"Oooohh. Ha-ha-he-ho-ha! The little girl knows how to play! How wonderful. You and I can play some games later," the Joker licked his lips.

Maroni quickly butted in when he saw an advantage in the situation. "Now Nikki, calm down. After all, you're going to be working with our friend here. You wouldn't want to cause any trouble."

Nikki spun around as her attention was momentarily redirected. "What?" she whispered in a deadly tone.

Maroni shrugged though the thugs behind him snickered. "I already told the Joker here that I would have one of my own working with him to make sure we were making progress."

The Joker lounged back in one of the metal chairs with his yellow grin giggling as he watched Nikki simmer. She rolled the knife in her hands. Maroni sensed what she had in mind to do with that knife. "You remember what you were without me. I picked you up off the street and gave order in your life. If you know what's good for you, you'll do as I say and when you're with the clown you'll do as he says...especially if you want me to continue to take care of your issue..."

Nikki froze. Her jaw was clenched as she stared at the floor. Maroni had something that was much too precious for her to lose. She had no choice. She grunted like an animal and kicked at the metal table. Her hand instinctually began to cut her left arm. "Make your meeting fucking quick then and we can get out of here!" she hissed.

The Joker sat his chair up on all fours. In a quick move he pulled Nikki down so she landed painfully on her side on the chair next to him. He whipped out his own knife and began to cut her arm in deeper, longer strokes. "Fuck you!" she yelled as she sat up as quickly as she could and pushed him off his own chair so he landed on the ground.

She was straddling him with her knife to his neck. Unlike everyone else she had ever attacked though, the Joker simply laughed and pressed his neck deeper on the knife. "I was just, uh, helping you. I believe no one should ever cut themselves...others should do it for them," his grin was mocking her along with his behavior.

"Nikki, get off him right now or else I just might slip and your precious little treasure will become broken," Maroni hissed. He really could care less whether or not Nikki killed the Joker, but he wanted the Batman problem taken care once and for all.

The Joker's tongue darted in and out as he giggled. "Don't worry, girly, you and I will have plenty of time to, uh, resume this position later tonight."

Nikki jumped off the Joker in disgust. She felt caged, something she absolutely could not stand. Maroni was blackmailing her into working with this mad dog and she had no choice in the matter. That would simply not do for someone who was accustomed to making choices for herself.

The Joker jumped up from off the ground and casually brushed his suit and jacket. "Watch the six o'clock news for updates on my progress," he grinned at Maroni. His left arm slithered around Nikki's waist. "Come on, beautiful. We have a town to terrorize."

Nikki pushed the Joker away from her and gave Maroni one last deadly glare before walking out of the room with a sniggering Joker behind her.