(A/N: This story is based off of something that I saw on Pinterest and I think it was originally from Tumblr. I couldn't find an author for the au idea. So if anybody knows who it is, please let me know so I can give them credit.)

~Hero Day~

Adrien walked in the classroom and was immediately overwhelmed by black and red spots. It seemed that the whole class had decided to dress up as Ladybug for hero day. Even their teacher, Ms. Mendeleiev, was sporting a ladybug themed outfit. Adrien himself had gone all out. He'd tried to get as close as possible to the real thing, even down to the yo-yo at his hip. It had taken a little bit of convincing to get his father to drop the money on a Ladybug costume for his son. He shuddered at the memory. That was one conversation he didn't want to relive.

Glancing around, Adrien saw everything from Ladybug T-shirts to costumes of actual ladybugs. Chloe was even wearing a Ladybug ball gown that must have cost a fortune. It made sense, he thought. Ladybug was brave, selfless, and kind; everything a hero should be. Of course everyone would pick her as their hero. She was perfect... Still, He was a little shocked that not a single person had decided to go as someone else. An astronaut? Police man? Random guy from history? Ladybug seemed to have all of Paris, including Adrien, under her spell. Not that she actually had to do anything for people to love her. It was enough for her to show up, be herself, and the world was obsessed.

Adrien sighed as he put his bag down and sat next to Nino, who had on a Ladybug T-shirt and matching headphones. If only the real Ladybug was here, He thought dreamily. Although, If he really thought about it, he might not even know it was her, and just assume it was someone in costume. A couple of people had gotten their outfits creepily accurate. The where a number of wigs dotting the classroom. He'd like to say that he'd know his Lady anywhere, but well… he had done a less than stellar job at figuring out her identity so far.

Kim and Alix were already fighting over who had the best costume and who'd be the best at jumping on rooftops like Ladybug. Yikes, Adrien thought, that wasn't going to end well. Over their arguing, he heard Nino shout a greeting at Alya. As Adrien turned to say hello to her as well, he saw someone out of the corner of his eye, and they were dressed in all black.

He smiled like an idiot when he saw the ears and bell, overjoyed by the fact that someone chose Chat Noir to be their Hero. He had thought about going as his alter ego, but he couldn't risk someone figuring out who he was, and Ladybug was his real hero anyway. The fact that someone had picked him ? Well… it meant a lot.

The smile left his face and his jaw dropped to the floor when he realized who it was. The details on her costume were extremely accurate. Her hair was even out of its usual pigtails, and arranged messily on top of her head. Hairspray was used to glue her hair in a Chat like fashion. The only difference in her costume and Chat's was hair and eye color. The black mask made her eyes look even more blue than usual.

Adrien's eyes widened as his gaze shifted downward. The tight leather suit clung to every curve of her body, making her look extremely, um… Adrien gulped. Was it hot in here or was that just him? He shook his head suddenly. He should not be thinking these things about sweet, innocent Marinette who brought him homemade cookies and was always nice to him and everyone else in class. Seeing her dressed like this? Yeah, he needed to pull himself together. He blushed and looked away quickly, but not before Nino shot him a questioning look.

"Girl you look hot!" Alya shouted loudly as Marinette took her seat. She blushed furiously and sat down quicker than Adrien thought possible.

"Alya! Shhh!" She whisper yelled and looked around to see if anyone had heard.

"I'm sorry, but dang! Somebody call the fire department because girl you are smoking!"

"Allllya!" Marinette groaned and sunk her head down into her arms.

"Seriously though did you make that?" Alya asked a little more quietly.

Marinette lifted her head and nodded slowly. Her face was still as red as a tomato.

"It looks really good Marinette," Adrien told her honestly, careful to keep his eyes on her face. "You're really talented."

This caused her to blush even deeper. "T-Thank you. I like you too- Er, I mean, I like your Ladybug costume too."

Adrien smiled, "Thanks, I'm a big fan. She's amazing."

Marinette's eyes widened and she scratched the back of her head, "O-Oh! Right, yeah! She's pretty cool."

"I take it you're a fan of Chat Noir?" He prompted.

"Y-Yeah, I guess. L-Ladybug couldn't save Paris without h-him."

Adrien was happy to hear that someone appreciated him, and he thought she was going to leave it at that, but to his surprise she continued.

"And even though he doesn't look it, he's actually really sweet," She said, with more confidence now. "He's a big goofball, and a notorious flirt, but he always has Ladybug's back. And not to mention he's fiercely loyal."

She smiled as she spoke, and Adrien could tell she meant every word she said. He stared at her in awe. He had no idea Marinette thought so highly of him, well Chat Noir anyway. He wasn't used to being praised so sincerely, and had to admit it felt really nice. He didn't realize that he was once again smiling like an idiot while staring at Marinette without saying anything until Nino elbowed him in the side and shot another curious glance his way.

The blush returned to Marinette's face almost immediately. "At least t-that's what I could gather from the one time we w-worked together."

Ms. Mendeleiev called the class into session before Adrien could say anything else. He turned back to his desk with a smile still on his face and blushing slightly. He hadn't expected anyone to dress up as him for their hero, not when Ladybug was obviously the better choice. But Marinette's heartfelt words stuck with him. As did the look on her face when she said them, like she genuinely cared about Chat. Everytime he'd glance back at her he couldn't help the smile that would return to his lips. Once she even made a cat pun, and Adrien almost lost

He almost got away scot-free, but Nino seemed to notice that he kept looking at Marinette. Before the bell rang for class to get out, Nino mouthed at his friend "We need to talk." Adrien groaned. He was going to have a lot of explaining to do.

This was my first Miraculous fic! It's only a one shot, but I think that it was alright :) If anyone has any ideas for more one shots, please let me know. I'd be happy to write some more! Like always, your reviews are greatly appreciated. Follow me for more stories. (Also, if your reading this, comment "Hawkdaddy" and let me know if you get who I'm referencing. XD )

That's all for now,

Kamryn