Adrien x Little Sister! Miraculous! Reader

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"(Y/n)! Get back here!"

You laughed as you hid inside your mom's exotic painting. Adrien was chasing you because you stole his jacket. One of your friends asked if she could have it and you told her she could.

Then you heard a yawn coming from the breast pocket. You gasped and looked inside. Before you could actually get a look the painting opened to reveal Adrien glaring at you.

"Out. Now."

You hopped out and giggled. You threw his jacket at him and pulled your tongue out. "You're no fun, Adrien."

"Sometimes you have to be 'no fun'.", he defended. You rolled your eyes and walked to your room. "Luna, the coast is clear."

Your kwami flew out of your jacket and giggled. "He is such a grumpy pants." You laughed as she crossed her arms.

There was a scream coming from outside. You sighed. "This is the third one this week! Hawkmoth must be really mad or something."

You transformed and hopped out your window. You spotted Ladybug and Cat Noir up ahead. They saw you and called you over.

"Hey, guys. What's up?"

Cat looked at you and shushed you. "What? I'm not loud." He pointed behind you.

You turned around and saw a giant fairy like creature. Your eyes widened as it started flying at you full speed. "Give me your miraculous!"

You all dodged her and scattered around. "Wolfona! Distract her while Cat and I figure out how to use this!" She held up a jar of hair gel.

You giggled and nodded your head. You led the akuma away while Ladybug talked with Cat. "Ha! You think I'm that stupid?"

You turned around just to be whacked with something. You fell to the ground, which fortunately wasn't too far from where you were. She laughed and flew next to you.

She reached for your miraculous until a purple mask hovered over her. She smirked and whacked you again. You passed out.

You woke up in a dark room with hundreds of white butterflies. You groaned and tried to hold your aching head, just to realise you were chained up. Your eyes widened as you saw the floor open.

Somebody rose up and turned to you. He smirked and walked over to You.

"Sleep well?"

You spat at his shoes in hopes he would back away. He just made a face and kneeled down. "You naive girl..."

He grabbed your chin and glared at you. "Do that again and I'll take that bracelet of yours." You eyed him confused.

"What? Wait-"

"I haven't taken your miraculous yet because you're my bait.", he explained. You growled and tried to break free from the chains. It was no use.

"What are you planning, Hawkmoth?", you said in defeat. He chuckled. "I'm glad you asked, mon petit papillon."

You furrowed your brows as you listened to his master plan. "You see, the only way to get what I want is to have all the miraculous. But that never happens." He paused for dramatic effect.

"But how am I included in this plan?", you inquired. He smirked and placed his hand out. A butterfly appeared and he put it to your hair.

"You are simply the puppet. You move when I pull the strings. But for now I'm just holding you hostage." You shook your head to get the butterfly away but it was stuck. There was a moment of complete silence.

"Understood?"

After Ladybug and Cat Noir defeated the akuma they looked around for Wolfona. "Sorry, LB, but I gotta get home. My sister is waiting for me." They bid each other fair well as Cat left and Ladybug kept searching.

Cat went home and detransformed. "I hope Fona is ok.", Adrien said to Plagg. "I'm sure she's fine."

Adrien walked to your room, ready to work on your piano lessons. "(Y/n), I had to-" He looked around but you weren't there.

"(Y/n), this isn't the time for hide and seek. Come on."

He looked all over your room but you weren't there. "Ugh...(Y/n), why don't you just come on out so we can study?" Adrien waited for a response but there was none.

He ventured away from your room and into his room. , he thought, He searched every corner but you weren't there.

"Plagg, something's wrong. (Y/n) wouldn't just hide from me like this."

Adrien started panicking after he couldn't find you. He went into every other room in the house and didn't find you. He was worried something bad had happened to his little sister.

"This is all my fault, Plagg. If only I had stayed with her instead of going to the akuma fight..." Adrien sniffed and went back to his room. "Why don't you search the town for her? I'm sure she's at least still in Paris.", Plagg said.

Adrien gasped and smiled. "You're right, Plagg. She has to be." Plagg rolled his eyes and sighed.

"Plagg, claws out!"

Adrien came back discouraged and tired. He was hesitant to tell his father, but he had to. He walked up to his father's study.

He knocked and waited for his father's response. "Who is it?", he heard from inside. "It's me, Father. Adrien."

The door opened and Adrien walked in. "What's wrong, Adrien? You look ill." Adrien ran up to his father and hugged him.

"Father! (Y-Y/n)! She-she-"

"She, what? Adrien, tell me what's wrong." Gabriel grabbed Adrien's shoulders and looked him in the eye. "What's happened to (Y/n)?"

"She's gone! Vanished! Just out of thin air!" Gabriel gasped and glared at him. "You better not be pulling a trick on me, Adrien."

"I'm not! I promise!"

You sat exhausted after attempting at freeing yourself. The chains were getting tighter it seemed. Hawkmoth hadn't been to check on you much today.

Speaking of which, here he comes right now.

"Finally. Only took you- Hey, dude. Are you crying?", you called out. He sniffed and wiped his eyes. "No, I simply have allergies. But enough about that. I have a new task for you."

You groaned and struggled for the last time against the chains. "I need you to find this girl." He held up a picture of...well, you.

You laughed and tried not to spill it out. "Argh! What's so funny?!" Your eyes widened when you saw how angry he was.

"Nothing, sorry..."

He grabbed your wrist and threatened to take the last bit of power you had. "Go ahead, do it. I bet you'll be surprised.", you countered. With that he glared at you and pulled your bracelet off, detransforming you.

Once he saw your true identity his eyes widened. Tears filled his eyes as he gasped. "(Y/n)! Oh-what have I done?!"

You were confused. Why was he crying upon seeing you? Did you-did you possibly jnow Hawkmoth in your civilian form?!

The thought was crazy, preposterous! No way could you know him. Right?

"Uh, you ok?", you asked him. He looked at you with tears flowing down his cheeks. "How-how could I have taken my own daughter?!"

Your eyes widened when you heard those words. Your father was Hawkmoth?! Hawkmoth was your father?!

He wrapped his arms around you and unlocked the chains. "(Y/n), please! Forgive me! I-I only did it to save your mother!" You shakily wrapped your arms around him and cried.

"...I...forgive you..."

You walked into Adrien's room with your father. You had a huge smile on your face and couldn't wait to see your big brother. You knocked on the door just to get a monotone response.

"Go away, Nathalie."

You giggled and said, "Guess again." Within one second the door flew open and Adrien came charging at you. "(Y/n)! Oh my gosh! You're ok!"

You laughed and hugged back. "Where were you?!", he asked. You pulled back from the hug and sniffed.

A single tear rolled down your cheek as you prepared yourself. "Adrien, did you hear about Wolfona's disappearance?" He nodded his head, confused.

"Well, that was me. I was taken by an akuma and was locked up inside Hawkmoth's lair...which just so happens to be here."

His eyes widened and he looked at both you and your father. "Father, what is she talking about?" Your father sighed and shifted to one foot.

"Adrien, this might be a lot to take in...but...I'm Hawkmoth."

Adrien couldn't take it anymore. It all spun around his head like a tornado. He passed out and you caught him.

"I guess he couldn't handle our secrets."

"But what about his secrets?", a small voicd piped up. You looked down to see a black creature beside Adrien. You gasped and laughed.

"Well I guess the cat's out of the bag."