AN: So this was a request from Jason Hunter and I really hope it turns out well. :D

19 year old Lucy Heartfilia was in the middle of giving a lecture to her student, 13 year old Erza Scarlet. Lucy was an S class mage of Fairy Tail and Erza had asked to become the woman's student. Lucy had agreed because she just couldn't refuse Erza's adorable face.

"Erza. You can't just rush head first into a battle like that. You could get yourself killed." Lucy stood in front of the small girl who was on her knees looking straight at Lucy's face. The blonde sighed and crossed her arms. "Why did you rush into battle like that?"

Erza looked Lucy dead in the eye. "I wanted to protect you."

"But you know I don't need it Erza. I'm S class."

"I want to become your knight and keep you safe Lucy Sensei." Erza huffed. Lucy smiled and ruffled the red heads hair. For a long time Lucy had known Erza had a little crush on her. It was also no secret that Lucy had something for her student, but they couldn't be together and Lucy made sure to tell Erza that.

"You're just a kid Erza."

"I am not!"

Lucy sighed and changed the topic. "What's this I hear about Mira beating you in a fight?"

"..."

"Erza?" Lucy crossed her arms again and waited for Erza's reply.

"She fought dirty." Erza mumbled. Lucy sighed.

"I told you before Erza. Nobody fights fair. Do you think the men we just took down today fought fair? I don't think so. They took a hostage and then took hold of our weapons."

"But we still won."

"Yes and that's because we were smarter. You need to stop and think before charging in because it just might save your life."

"I'm sorry." Erza bowed.

"It's fine Erza. Just remember what I have been teaching you."

"I will become S class." Erza declared. Lucy smiled.

"Yes you will." Lucy took Erza's hand and they started towards Fairy Tail.

...

Lucy opened the doors to Fairy Tail and walked in with Erza right beside her.

"Lucy! It's nice to see you again." Makarov smiled and waved her over. Lucy patted Erza's head and walked over to the bar.

"How have things been Master?"

"Going pretty good. Natsu and Gray have been troublesome, but when aren't they?" Lucy laughed with Makarov and took a sip of her drink. "How was your job with Erza?"

"Went better than I expected. She rushed in head first like usual and we got our weapons taken away, but we came out on top."

"That's good to hear. I think it's great that you decided to train her."

"Well I couldn't refuse such a cute, determined face." Lucy chuckled and looked over at Erza who was arguing with Mira again. "She's different from the others. She's absolutely set on becoming S class."

"She wants to prove herself to you."

"What do you mean?"

"Anyone can see that she has a thing for you." Makarov took a drink of his beer and sighed. "I can also see you like her more than just a student."

"That's ridiculous Master. She's just a kid." Lucy said once again.

"I'm just telling you what I've seen." Makarov looked over at Erza and smiled. "She will become a great mage."

"I know. Maybe even better than me."

"Not sure of that one, but there is a job I need you to take."

"Huh? What is it? Can't Laxus take it?"

"He's out. You're the only one I can ask."

"Okay..." Lucy grumbled.

"Someone requested an S class mage to defeat an unstable time mage."

"I see...I guess I'll go take care of it then." Lucy rose out of her seat and walked towards Erza. The red head got knocked over by a laughing Mira and Lucy caught the girl. "Erza. I'm going to be gone for a couple days."

"Can't I go?"

"No. It's going to be too dangerous for you."

"I can fight too!"

"I said no. You're not ready for an S class job yet."

"Fine." Erza crossed her arms and stared at the ground in anger.

"I want you to continue working really hard okay?"

"I will."

"Erza I promise I'll be back and we'll go on a job together again." Erza smiled up at her and Lucy ruffled the girl's hair before walking out the door.

...

Lucy grunted as she blocked another attack from her enemy. He had been using all kinds of time magic. He could set time back and heal himself, but Lucy was tiring fast. She had called out several spirits now and could only summon about one more before she would be drained completely. She pulled out a golden key and summoned Virgo.

"Is it time for punishment mistress?"

"No...I need your help in taking this guy down." Lucy quickly explained her plan and Virgo nodded before disappearing. Lucy grabbed her whip and waited. The time mage suddenly was taken under ground and then thrown high into the air where Lucy used her whip and wrapped it around the man's ankle and used the whip to slam him into the ground. She sighed as she saw that the battle was over. Virgo was dismissed and Lucy walked over to the defeated mage and bent down beside him. She could already hear the people of the town running towards her. She felt a hand touch her and then a bright light lit up her surroundings. She shook her head and looked around. Nothing seemed different. Lucy rubbed her head and started back to Fairy Tail. Maybe then she could get some sleep.

...

Lucy stretched and walked up to the guild. Something seemed different, but she couldn't quite place her finger on it. She pushed the double doors open and froze with her mouth hanging open. Everything was different. Natsu and Gray were causing trouble, but they were older. Lucy heard gasps and whispers run through the guild. She then heard a familiar voice and turned to see a much older Erza. "Lucy..." The blonde fell to the ground as she passed out. As she faded into the darkness, she could hear the worried conversations from her friends.