I do not own One Piece but I do own this plot!

Like the three brother feared Luffy did get quite attached to the blonde first division commander. "Pineapple! Teach me how to become strong! You fought with Shanks so you have to be strong!"

Marco sighed looking down at the energetic boy that had gotten attached to him. He would be lying if he said he didn't enjoy the boys company. "How about instead of training I tell you some stories about Shank's when he was younger, yoi."

Luffy's eyes sparkled in admiration and he nodded eager. He wanted to know more about Shanks!

Marco smiled lightly at the boy before going into one of his stories about the red haired bastard.

The three brothers watched the two ravens glaring at the blonde commander. Sabo watched him closely to make sure nothing happened to his youngest brother.

Thatch noticed the looks and couldn't help but laugh at them. "You three have some brother complex it's cute."

Ace turned glaring hatefully and yelled. "I am not cute you damn bastard!"

Law glowered at the man knowing exactly what a brother complex was and knowing he probably did have one. "I do not have a complex I just care about my brothers that's all!"

Sabo chuckled and nodded. "Hmm your right we all do have a small brother complex but it's natural when you have a little brother like Luffy."

Thatch shook his head at the three brats before looking over to the youngest one. "Well if you're interested to know we'll be docking at an island soon."

Law looked up interested he had a few things he wanted to look for. Sabo as well was interested in looking for a few books. Plus, he wanted to chart down the island for his book.

Ace shrugged uninterested he could care less all he wanted was to get stronger so he could protect his brothers better. He didn't want to lose any of his brothers but he needed to be strong enough to fight off their enemies.

-(Break)-

The moby dick docked at a port. Luffy went to bolt off the ship but was quickly grabbed by Law. "Luffy don't just run off without one of us."

The small raven pouted trying to get free. "But I want to have an island adventure! Come on Law let go I wanna have fun!"

Law shook his head. "No! You're not to leave our sides no matter what do you understand."

Luffy pouted but noticed the seriousness in the older raven's voice and nodded. "Yes I understand."

The four younger boys all made their way off the ship. Whitebeard looked to his oldest son and nodded.

Marco understood exactly what his pops wanted. He quickly transformed taking to the skies so he could keep an eye on the brats.

-(Break)-

Luffy looked around confused. He somehow lost all three of his brothers in the big crowd. He looked around trying to see if he could spot anyone he knew.

"Hey kid are you lost?" Luffy turned to the voice and saw a man who looked really shady but Luffy couldn't tell.

He nodded pouting. "I lost my brothers in the crowd."

The man grinned maliciously. "Well why don't you come with me I'll get you some food and then help you look for your brothers how about it?"

Luffy's eyes lit up brightly and he nodded excited. "Thanks mister! You're really nice! Shihihi!"

Marco noticed the transaction and for some reason his blood started to boil. His phoenix was screaming in rage. How dare someone try to harm his boy. He may not have known the boy for long but it didn't matter to him the boy was his youngest brother and he'd be damned if anyone tried hurting the young ball of sunshine.

Marco shot down and changed landing on his feet right in front of Luffy. He glared at the man making the man pale.

At this same time Ace, Sabo, and Law managed to find the small trio and were frozen at the look on the commander's face.

Marco took a step towards the terrified man. "This boy belongs to the Whitebeard family! Just now you were going to kidnap him and sell him off to a slave house weren't you yoi?"

The man was shaking in his boots he couldn't speak or move he was terrified. Marco grabbed the front of the guy's shirt. "If you ever try to mess with one of my boys again you won't live to see another day got it, yoi?"

The man nodded quickly. Marco threw him to the ground glaring at him. "Get lost scum!" The man turned running away screaming.

Luffy pouted. "Awe but Mama Marco he was going to give me yummy food."

Marco lost the cold look on his face and turned smiling lightly. "Don't worry about that Lu I'm sure Thatch has a big plate of food for you back on the moby."

Luffy cheered running off towards the ship with Marco very close behind.

The three brothers stood in shock. Sabo looked to the two oldest questioningly. "Did he just call us his?"

They nodded. Ace glared after the blonde. "It doesn't matter he could be trying to trick us into believing he cares about us."

Law watched the blonde closely. "He may actually truly care but it still doesn't change anything, we use them to get strong then we take off even if they get attached none of that matters."

The other two nodded also determined. They had to get stronger so they could protect their family. They couldn't afford to get attached to the Whitebeard pirates they were only a means to an end and that was it.