Lucy x Split Personality Mage Reader.
(You're naturally shy, but your split personality is confident and flirty.)

You were woken up by Natsu roughly shaking you. You were so surprised that you activated your magic immediately and then threw Natsu off you.

"How many times do I have to tell you to stop doing that!" You yelled at him and he got up quickly with a goofy grin.

"(Y/N)! I wanted to introduce you to Lucy! I'm taking her with me on my next mission, sorry!" You stared before turning to the blonde girl. You slowly walked up to her and she nervously started to back away until you had her trapped against the wall.

"Natsu and Happy are my partners blondie, you can't just steal them away because you're cute." You glared and she shrunk back.

"I wasn't stealing them! They just told me they wanted me for a mission! That's all! Honest!" She seemed really scared and you couldn't help but laugh.

"I didn't mean to scare you blondie! Those idiots are a handful and I'm greatful for the break. I wish you luck on your first mission beautiful." You then backed away and winked at her before going back to Natsu and shrugging at his still happy expression.

"And we're off!"
"Aye sir!"
That was the 2 idiots before they dragged Lucy away and you chuckled hearing her scream because of their speed.

After a few seconds one of you friends sat next to you and smiled. "Want me to help you turn back?" She asked and you shrugged. She was able to undo certain types of magic, mainly magic that changes or enhances the body in some type of way, which is what your magic is in a way. You change into a completely different person , and it's not always on purpose, it can happen when you're scared or shocked, which is why it happened earlier.

(Think about it like Mirajane'a take over magic, it's another soul that basically takes over your body when you either let it or have a certain reaction.)

(F/N) takes that as an answer and then undoes the spell. Once you're normal again you immediately cover your face.

"Please tell me I didn't just trap the new girl against the wall."

"You did, but if you're lucky she'll get some type of head injury when on the mission with Natsu and won't remember."

"Uggh!"