Chap 1

It was a peaceful day at the guild. Natsu, Gray, and Lucy were on a mission. Without Natsu and Gray there to cause fights it was unusually quite. That quiet atmosphere didn't last long however, as the guild doors burst open.

"This is all your fault Gray!" Happy yelled.

"My fault?! It's the stupid flame brains fault for eating that crap!"

"Well you dared him to!" Happy yelled.

"I didn't think he'd actually do it!"

"Will you two shut up!" Lucy yelled from behind them.

"Well I STILL say it's all Gray's fault." Happy mumbled.

"Shut up Happy! Dammit! Lucy, will you take him? He won't hold still!" Gray said. That's when everyone noticed the small child in Gray's arms squirming around. The child couldn't have been more than four years old.

"Whose kid is that? Don't tell me he's yours and Lucy's!" Mira said wide eyed.

Gray sighed. "Take a closer look Mira. Does he look like he's mine?"

Mira took a second look. When she saw the pink hair and familiar smile on his face, she gasped before smiling.

"I knew you two would get together! I'm a little confused on how you were able to hide it though." Mira said frowning.

"What are you talking about?" Lucy asked.

"Why you and Natsu's love child of course! He looks just like his daddy too!" She said smiling.

Lucy rolled her eyes. "Oh for the love of god! He's not my kid! Can't you tell by looking at him? It's Natsu! He ate some weird fruit on our mission and it turned him into a kid!"

"NATSU!" The guild yelled in shock.

Natsu looked at all the people who yelled his his name and smiled. He didn't know who these people were but they seemed to know him and he liked the attention he was getting. When he spotted someone in the corner, his eyes lit up and he managed to squirm out of Gray's arms and ran over. He tumbled a few times, almost as if he had just started walking recently.

Gajeel had watched the whole thing shaking his head at Natsu's stupidity for eating some unkown fruit. It could have been poisonous for all he knew.

"Serves the dumbass right." He said before going back to his meal of metal. He was just about to toss a screw in his mouth when he felt someone pull on his pantleg. He looked down and saw a smiling Natsu looking up at him.

"What do you want brat?"

"Up!" He said holding his arms up.

"Uh...what?" Gajeel said a little shocked the kid wanted him to hold him.

Natsu smiled again. "Up! Up!"

"I think he wants you to hold him." Levy said giggling beside him.

"Why me though?"

"Brover! Up!" Natsu yelled getting impatient.

"D-did he just call me brother?" Gajeel asked in shock.

"I think he did." Levy said.

"Why in the hell does he think I'm his brother!"

"Brover! I say up!" Natsu said stomping his feet.

"Ok! Ok! Damn. Come here ya loud mouth." Gajeel said bending down to pick Natsu up. Natsu giggled before giving Gajeel a hug.

"Love you brover!" He said giving Gajeel a sloppy kiss on the cheek.

"Aww!" The guild said as they watched the interaction between the two dragon slayers.

"Shut up you assholes!" Gajeel yelled.

"Assholes!" Natsu repeated laughing. Gajeel couldn't help but smile when Natsu copied him.

"Gajeel! Don't talk like that around him! He's just a little boy right now!" Mira yelled.

Natsu glared at her. "No yell at brover! Brover all mine! No be mean!" He yelled as he snuggled into Gajeel's chest.

"Sorry Natsu. I didn't mean to yell." Mira said smiling.

"Kay. She be nice brover. She not be mean anymore." Natsu said smiling up at him.

Gajeel sighed. "Will someone please tell me why this pipsqueak thinks I'm his brother!"

"I believe I can answer that."

"Master, when did you get back? I thougt you were at a meeting?" Mira asked.

"I got here right after this commotion started. Now as for Gajeel's question, he thinks you're his brother because of Zeref. As you all know he was Natsu's brother. If you recall Zeref had red eyes and black hair, the same as Gajeel here."

"What the hell! I ain't nothin like that psycho! And I look nothin like him! How could flame brain get the two of us mixed up?"

"Calm down. We all know that Natsu doesn't remember much about his past. He probably remembers having a brother with black hair and red eyes and just automaticaly thought you were him."

Gajeel growled. "Whatever. I still ain't nothin like that freak."

Makarov smiled. "Think of this in a positive light. You don't know much about your own family. This gives you a chance to know what it's like to be a big brother. This could be good for the both of you."

"Like hell! I don't wanna be brothers with the pyro!" Gajeel yelled. It was then that he heard sniffling. He looked down and saw Natsu looking up at him with tear filled eyes. He started to panic when he realized that Natsu was about to cry.

"H-hey kid, don't you go bawling on me now!"

"Wahhh! Big brover hates me! Why you no love me no more Gajee? I not do nuffin wrong. I be good boy! I pwomise." Natsu wailed his little heart out. His 'big brother' really hurt his feelings.

"Gajeel! Look what you did! You hurt the poor little guys feelings!" Levy said taking Natsu from him. Gajeel looked away feeling guilty. He didn't mean to make the brat cry. It was just hard for him to remember that Natsu was a kid now.

"There there. It's alright. Gajeel didn't mean it. He's just being a big meanie today." Levy said to him trying to calm him down.

"So, I not be bad? He just being a meanie head?" Natsu asked sniffling as his cries died down.

Levy smiled. "Yep."

Natsu glared at Gajeel. "I tell mommy and daddy on you! I tell them you be mean to me then you get in twouble!" He said squirming out of Levy's arms.

Everyone was surprised at Natsu's declaration. They were all now curious as to who he thought his parents were. They were all shocked when he ran over to Gray and Lucy.

"Mommy! Daddy!" He said throwing his arms around their legs.

Lucy and Gray were stunned when Natsu called them mommy and daddy. Gray was about to correct him when Lucy shook her head.

"Just go along with it. He doesn't know any better right now." Lucy whispered.

Gray sighed before kneeling in front of Natsu. "What's wrong buddy?"

"Big brover be mean to me! Him need spanking on his hiny!" Natsu said pointing at Gajeel.

Some of the guild members started laughing at a now glaring Gajeel. Gray cleared his throat to keep from laughing himself as well. Lucy elbowed him before turning to Natsu and smiling.

"Sweetheart, Gajeel's to big for a spanking."

Natsu pouted. "But mommy, he hurt my feelings!" He said stomping his foot.

"Ok. How about this. Since he was mean to you, he has to take you to the park and then buy you some ice cream. How does that sound?" She asked.

Natsu's eyes lit up. "Yay! I wanna go now!"

"Ok. Go tell your...brother what uh...mommy said."

"Kay." Natsu said before making his way back to Gajeel.

Gajeel heard what Lucy said and was not happy. "I don't think so bunny girl! Why don't you get the ice freak to do it!"

Gray smirked. "Because SON, you're the one who hurt his feelings so now you have to make it up to him." He said stressing the word son.

Gajeel was about to respond when he felt a tiny hand in his. He looked down and saw Natsu smiling at him. He sighed before rolling his eyes.

"Come on brat, let's get this over with." He said. He blushed when some of the girls started saying how sweet he was being as he let Natsu hold his hand.

"Shut up ya bunch of assholes!"

Natsu looked at everyone. "Yeah assholes. Do what Gajee says!"

Gajeel couldn't help but laugh as Natsu copied him and he was yelled at for speaking like that in front of Natsu. He continued laughing as they walked out.

"Now that he's out of earshot, what the hell are we gonna do gramps? we can't let him go around thinking we're his parents." Gray said.

"I personally think you guys will make great parents! Not to mention how cute you guys would look as a couple!" Mira said smiling sweetly.

"Mira!" Both Gray and Lucy yelled blushing. This caused the guild to laugh.

"Hey guys, can I be the god mother?" Cana teased.

"I'll be the aunt!" Levy said.

"I got dibs as the most awesome uncle!" Bickslow said smirking.

"Cut it out you guys!" Lucy yelled blushing.

"Alright settle down you brats! We need to figure out how to fix this. I'll need Gray, Lucy, Levy, and Freed's help on this. Gray, we need to know exactly what it was that Natsu ate. Lucy, Levy, and Freed, you guys will research this fruit and find out what it is and see how we can fix this mess."

"Sure thing gramps. Let's get this show on the road!" Gray said as he led them to the guild's library.