Hello! So, I'm new here, and this is my first story! I really hope you enjoy it. Reviews would be much appreciated. :)

Chat!Mari Ladybug!Adrien Kwami!Swap
Cat Burglar AU

Marinette slipped quiety onto her balcony. She smiled up at the moon as it illuminated her figure in its soft light.

She was dressed in a black shirt, with matching black tights. A black bag was slung across her shoulders, sagging slightly from the straps, hanging just above where her belt fell from her waist to form a tail. To complete her outfit she wore a mask, gloves and two cat ears set securely on top of her head.

She was a small girl, just 17, and she had already done more things that most adults had done in their whole lives.

Marinette walked slowly to the balcony and peered out across a sleeping Paris. She breathed in, out, in and out, her lips curving up into a smirk as she felt adrenaline surge through her.

But, she must be patient, for tonight was not the night. She ran her plan over in her mind, trying to find another fault that needed correcting. She nodded slowly. Yes, she was confident her plan would work.

Marinette placed her hand on the railing of the balcony and lightly vaulted over it, landing softly on the other side. With practised ease she paced to the edge of the roof and swiftly leapt over the alleyway to the next roof. As silently as the night, she slipped from one roof to the next, her mind intent on her prize.

For Marinette, otherwise known as Chat Noir, was a one girl rise in crime, and her name was known throughout Paris. She was a cat bugler, known for slipping in undetected, and leaving no trace. There had been no photos of her, only a grainy video, taken from a poorly placed security camera.

The news had gone crazy when the mysterious theif was revealed to be a teenage girl.

"Surely," they had thought, "Surely this burglar, who had a reputation for sneaking into highly survallienced areas should be a strapping young man who has come from elaite army training? The one who left stupid puns on lined paper and a fluro green pawprint at the crime scene? The one who's plans are so carefully thought out, who's mind can't be cracked by the best detectives in all of Paris? This genius, this mastermind, this increadible acrobat... is..is..a teenager?"

Marinette had been annoyed with herself at the slip. She had seen the offending camera, and had thought she had evaded its sight. Turns out it was an ancient one, with a bigger view finder, and her secret was out. She had been extra careful ever since, and even the newest, most technological security cameras hadn't captured her again.

But now was not the time to think of such things. Marinette made her way across Paris, seeing by the starlight and the city lights below her. She passed the Eiffel Tower, heading for the richer side of the city. She alighted on a slanted white roof, and looked around to catch her bearings. Her eyes gleamed as she spotted the house she was planning to rob. A house belonging to none other than the Mayor of Paris...but, better known to her as Chloe's father.

Marinette clambered down from the roof of the glamourous house and assesed the quickest way in. She had walked past the mansion everyday for a month, taking the longer route to school, so she could study the entry and exit points, cameras and any security guards pacing the floor. This was one of the most highly survellienced houses in all of Paris, and it was an amazing test for the young theif. It was probably one of the toughest jobs Marinette had set herself.

She steeled herself, and jumped, using her arms to hoist her body over the south wall. She dropped onto the ground without a sound, and quietly moved along the wall to the place she had picked out as the best entry point, the pantery window. It was a tiny window, with rusty hinges, and it lead to a bolted pantry. It had three metal bars over it, going vertically across the window.

Marinette scoffed to herself. Every house in Paris that was worth more than one million dollars had installed these bars after her rise in crime had begun. As if they could stop her. She shook her head to clear it and slowly slinked to the edge of the house, timing it perfectly so the revolving security camera didn't catch a glimpse of her. Moving to the window, she reached into her bag and pulled out a small black bottle with a leather strap wound around it. She uncorked it, and flinced as the pungent smell hit her nose. Undoing the leather strap, she placed it over the opening of the bottle and tipped the bottle upsidedown, letting the foul smelling liquid soak into the leather.

She had renforced the leather earlier that day, heating it, cooling it, and dabbing a soloution on it that prevented her acid from eating it away. But, the bars weren't renforced. She tipped the bottle the right way up again, and rubbed the leather harshly over one of the bars. She had to be quick, she glanced at her watch, realising that a security guard's path was going to come round this way in 6 minutes and she didn't want to be anywhere round here when he came. 6 minutes should be enough time to get in. As long as she shut the window behind her, he shouldn't notice that the bars were missing.

She rubbed harder, smiling grimly to herself as she felt the bar start to weaken. The bar disconnected from the top of its frame with a soft clink, and she hastily started to rub the bottom part of the bar. At long last she had them all done. She pushed open the window, straining with the effort of moving the rusty hinges. Once she was sure the window was open wide enough for her body to get in, she buried the bars in the garden bed, making sure light wouldn't glint off them.

Marinette started as she heard soft footsteps steadily making their way towards her. The guard didn't usually come round this way, he stopped at the corner and then made his way back towards the front door.

Marinette hesitated. She would have liked to prepare herself more for this theft, and she usually needed to mentally goad herself into moving. "Better safe than sorry." thought Marinette, as she pulled herself up to the window sill. She grabbed the top of the frame and pushed her legs through the window. She wriggled with annoyance. The window was just a little bit too small. She pulled her legs out and slipped off her backpack, aware of the ever increasing footsteps of the security guard. She pulled a bottle of oil out of her bag and hastily rubbed it over her black clad legs. She frowned at herself. She should have done this before she even climbed over the wall. Now she was wasting valuable time trying to get through a window of all things!

She pushed her backpack through the window and gripped the top of the frame again, pushing her legs through again. She scrunched her eyes tightly closed, praying she didnt't make a sound as the guard stopped, just round the corner. With her hightened senses, due to the adreniline rushing through her, she realised she could even hear the man breathing. He shuffled his feet around a bit, and with growing dread Marinette realised he was about to come round the corner.

With strength she didn't know she had, she desperately pulled her body up with her fingers and with adreniline rushing in her ears, she finally slid inside the house. Marinette dropped to the floor and tried to calm her breathing. There was no time to close the window now. She held her breath as the guard passed the window, expecting his footsteps to stop and investigate. But, they kept moving forwards at a steady pace and she slumped to the ground, letting out her breath in a big sigh.

She opened her eyes and scanned the room, noting with surprise that the pantry door was unlocked, and she could see straight into the kitchen. She smiled with satifaction. "Purrrfect"

The rising theif in Paris could now add another achivement to her steadily growing list. She was in.