A/N: The first of two chapters that I couldn't wait to write when I started this story. It can be seen as a two parter thanks to reasons (you'll understand when you the preview)... I hope you all enjoy the chapter!

Chapter 9: Mewberty

It was just a normal day at school. The boy that Star had a crush on was signing a song about how he didn't like his mom. She of course during art class watched him.

"Hey! Star! Class is over." Said Marco then noticed something and pointed to her forehead "Also you have a little paint right here."

Star picked off the paint, only to realize it was a purple heart.

"Oh no." said Star, "This isn't paint!"

"So now you have another to match the others." Said Marco with a shrug.

"No… you don't get it, I think I'm going through Mewberty." She said.

Then more purple hearts appeared on her face. She began to freak out.

"We have a thing like that on earth..." Said Marco.

"I am well aware!" said Star.

(Flashback)

Garp sighed… he knew had to do this sooner or later and he didn't care if Star was there. It was probably for the best to get her ready for boys.

"What are you doing Gramps." Said Luffy concerned that he just wanted to talk to the four of them.

"I just want to read you a book." Said Garp, "Why am I Sweaty."

He showed all of them the book.

"It all begins with this little fella. The pituitary gland. He may be little but he has big plans." Said Garp.

(End of Flashback)

Star shuddered at the memory.

She then took out her mirror.

"Luffy! Get Ace and Sabo! Now I'm going through Mewberty!" yelled Star.

"Oh man!" yelled Luffy from the mirror.

"Tell everyone I'm taking the rest of the day off." Said Star, "Trust me it's best I'm not here while I'm going through Mewberty."

That was when a Portal opened up and out walked out Star's three brothers.

"Okay… what is going on?" asked Marco, "I mean it's just Mewman version of Puberty."

Her three brothers looked at each other.

"I told him it's not like Puberty." Said Star.

Sabo sighed, out of the three of them he was considered the smart one, it helped that during his stay in Mewni he did quite a bit form the royal library to pass time when he couldn't hang out with Star.

"You see Marco Mewberty is a time in a Princess of Mewni's life where she temporally transforms into a boy crazy monster." Sighed Sabo.

"Is that a…" said Marco.

"It's not a metaphor." Said Sabo.

"Uh…" said Marco.

"We really should get out of here." Said Ace.

Luffy cut open a portal.

"Wait! I'm coming too." said Marco.

"What are you sure?" asked Ace.

"It's probably not a good idea." Said Sabo.

"Why not?" asked Marco.

"First off, Star is our sister." Said Sabo, "We won't trigger it."

"Would that be good through?" asked Luffy.

"I mean how many will actually trigger it while there." Said Ace with a shrug.

"Bodies I doubt Marco won't trigger me… even if he is a boy…" said Star with her pupils turning into hearts and more purple hearts appearing on her face as well as arms.

"Fine… just remember this: We didn't choose the place at random and we've been planning this for you years so try to keep your complaining to a minimum." Said Sabo, "Also we're pirates so setting a monster loose on a town is normal."

"Hey! I'm still normal!" yelled Star napping out her boy crazy mode.

"You know you're going to wreck everything." Laughed Luffy.

"I know…" sighed Star.

They all finally left through the portal.

Marco was shocked to find they were in a very nice town. Here there seemed opt be a lot guards and those that weren't were dressed very nicely.

Not was he was expecting.

That was when saw bunch of rather handsome guards and walked towards them.

"Well looks like she's going after some guards." Said Ace.

"Better than some brats. "said Sabo.

"We should get to a roof in case someone spots us." Pointed out Ace.

"Yeah." Sighed Sabo.

"All right!" said Luffy.

"Wait Luffy no!" yelled Sabo.

"Don't do this!" yelled Marco, "There's other ways!"

"Luffy let me go up on my own." Said Ace, "I still need to train my powers!"

"Okay!" said Luffy.

He grabbed onto a nearby rooftop and then gabbed Marco and Sabo then shouted "Gum Gum Rocket!"

Launching himself and other two boys onto the roof.

All three landed on a roof with a thud.

"He never listens does he?" asked Marco.

"No will never…" said Sabo.

Ace turned his lower body to flames and flew up like a rocket to join them.

"He listened to me. "said Ace with a grin.

"You had a good excuse for him." muttered Marco.

Ace just laughed.

"I hate you so much right now." Muttered Sabo.

On the ground Star approached the guards.

"Hello!" she said in a daze.

The group of guards stared at the teenage girl unsure however to respond. It got worse when she started to turn completely purple and started to shoot purple sticky stuff from her fingers.

The guards started freaking out, after all this wasn't normal.

On the rooftop. Marco, Luffy and Sabo all watched this happen.

"Looks like it's starting." Said Sabo.

That was when they heard snoring. They turned to find Ace sleeping.

"IS he asleep?" asked Marco.

"He does that." Laughed Luffy.

"Looks like we have to wait." Said Sabo.

"Okay… seriously why this town?" asked Marco.

"Star agreed to this you know." Said Sabo.

Marco sighed, "Fine." Muttered Marco, it was clear he didn't like their choice in location.

They saw that Star was completely purple and in a mound of the purple hearts.

A group of very nicely dressed teenaged boy saw the mound.

'What's that?" asked one of them.

"Who knows." Said another.

"I'm doing to touch it." Said one of them.

The other boys stared at him.

"If you want to." Said one of the boys.

"What an idiom… he's going to be contaminated." Said another of them.

The rooftop group saw this.

"Hey you think he's in that group?" asked Luffy laughing.

"Doubtful, they look too lower-class for him." said Sabo rolling his eyes.

Marco looked at the two wondering who they were talking about.

Back on the ground the boy touched the mound with Star in a strange tone only saying "Boy! Boy!". That was when Star touched the boy The boy jumped away just as Star's eyes comply turned heart shaped and started to glow as she created more goop and incase herself in a heart shaped cocoon.

"Looks like she entered the next stage." Said Sabo.

"What does she turn into a butterfly like monster?" asked Marco rolling his eyes.

"Yes." Said Sabo.

Marco blinked and realized he had in deeded walk right into that one.

"That was a stupid question." Laughed Luffy.

They waited for the last part of the transformation.

After a while the guards started to surround the cocoon.

They weren't sure what was going on.

Then it started to crack.

As it did the rooftop group got ready, with Sabo taking out binoculars for him, Luffy and Ace.

"Hey! Ace! Wake up!" called Luffy.

Ace woke up.

"Okay." Said Ace.

Marco grimaced at the three but kept quiet.

They all watched as Star emerged from the cocoon. She was still entirety purple, however her heard band was somehow antae, she had six arms, her eyes were hearts and butterfly wing. She flew up into the air and her hair suddenly styled itself into a strange set of pigtails.

"Boys!" she said in a strange tone.

"Uh… we're all men." Said one of the guards.

However that didn't matter as she grabbed one of them, stuck him on a wall and covered him in the strange purple webbing.

Then she began to do the same thing to another guard.

The other guards ran away.

And soon Star was flying around the town, picking up any male that was not clearly a child or very, very old.

Durring this time in one of the large houses, a man with long hair heard about the Star's rampage.

"A monster is rampaging." Said the man, "I belie I know who might be behind it."

"Sir!" said a guard entering, "HE was spotted on tone of the roofs."

The man scowled.

"Figure out a way to take me there at once." Said the man.

"Yes sir!" said the guard.

Back on the roof… Marco watched as the brothers were laughing at what was going on.

That was when Luffy suddenly shouted "It's your fake brother!"

"Really? This is going to be great!" said Sabo.

"Fake brother?" thought Marco.

On the ground a rather ugly teenaged boy with orange hair saw Star fly towards him, he started to run. However Star cut him off.

She looked at him and scowled, as if recognizing him. Then she flew away.

"Yeah you fly away you monster!" yelled the boy.

Star flew back, glared at him then shot his mouth with the purple webbing before once again flying away.

On the roof the three brothers weren't sure how to react.

"Isn't Star completely boy crazy like this?" asked Ace in shock.

"She is." Said Sabo.

Luffy started laughing.

"She doesn't want him." he laughed.

"No she doesn't." Sabo cracked a smile.

"Who are you talking about?" asked Marco eventually confused.

"It's complicated." muttered Sabo.

"It's not complicated he's Sabo's…" said Luffy just before Ace cut him off.

"Sabo should explain." Said Ace.

Sabo sighed knowing he cant' avoid the topic any longer.

"You see…" Said Sabo.

Before he could explain though.

"Sabo!" yelled a voice.

They turned and saw the man with a pair of guards with him.

Sabo got up and glared at the man.

"Outlook." He muttered.

That man gritted his teeth and glared at Sabo.

"How dare you call me that!" yelled the man named Outlook, "I'm your father! And you will refer to me as such."

"Haven't heard that before." Muttered Sabo rolling his eyes.

Marco's eyes widened shock.

"I knew you were behind the monster." Muttered Outlook, "Should known your pirating was just a decoy."

"No my exploits are real, I just have a way to get around instantly." Said Sabo.

Outlook glared at Sabo.

"You are to stop being a pirate and come home immediately!" yelled Outlook.

"Why do you even care anymore!" yelled Sabo, "You have you have Sterry! And a I heard a rumor that if somehow the King and Prince dies he'll be next in line for the Throne… why do you even want me."

"You're still my son!" yelled Outlook.

"I get it, you still want your precious possession back." Said Sabo, "Well it looks like you haven't kept count but I'm 17, you can't order me around any more…"

Outlook glared at him.

Ace and Luffy both got read to fight the guards to protect their brother.

Marco just watched in shock. That was when the he put together the pieces, the reason why Star was okay rampaging though the town, the reason why he lived in Mewni.

Sabo was abused, though it was clear it was emotional abuse and not physical.

However before a fight could break out, Star showed up and grabbed one of the guards. Less then a minute later she showed up and grabbed the other.

Outlook began to sweat as Star once again showed up.

However it was clear she was glaring at Outlook.

She webbed him up. Then she grabbed the webbing and swung him around and threw him away.

She then flew off to find another person to web up.

"Looks like she didn't want him either." Sabo said with a somewhat broken laugh.

"You okay?" asked Marco.

"I'm fine. I just should have predicted he'd show up with one his usual threats." Said Sabo.

"So…" said Marco, "If you want to talk about it I have an A Psychology."

"I minds as well." Said Sabo with a shrug, "It's probably going to go on for longer."

They sat down to watch as Star kidnapped more boys and men.

"That guy that Star avoided was the kid Outlook and his wife adopted to replace me." Said Sabo.

"Why does he still want you back if he replaced you?" asked Marco.

"He doesn't see me as a person he sees me an possession." Said Sabo, "He just wants his stuff back."

"I see." Said Marco.

"It's fine, I have my brothers, sister, my crew and Star's parents." Said Sabo, "I have a better family than them."

"Sorry about the complaining." Said Marco.

"It's okay." Laughed Luffy, "He didn't want to tell you."

"He's got a point, if you told him that the town was filled with assholes then he wouldn't have complained." Said Ace.

Sabo sighed at his brother.

They saw Star seemed to stop her flying, and the purple began to flake out into hears, as her antae turned back into a horned headband, her extra arms disappeared, her hair fell out of the pigtail, and her wings seemed to shrink down.

"Looks like it's over." Said Ace.

Luffy grabbed a nearby building.

"Gum Gum Rocket!" yelled Luffy, he flew through the air and caught Star before she could fall.

He grabbed another building a redirected back to the roof they watched from, though the two landed hard.

"Hey okay?" asked Marco.

"I'm fine." Said Star.

That was when strange buzzing sound coming from Star, Marco did freak out. Star lifted her hair and found her wings were still there only very tiny.

"I got my Mewberty Wings!" cheered Star putting her hair into a ponytail.

"Wait does that mean you can fly?" asked Marco.

"Let's find out!" cheered Star grabbing Marco and Luffy's arms.

She tried to fly but the wings were too small.

"Come on let's go somewhere to eat." Said Ace.

"Just nowhere on the island." Said Sabo.

They looked all over at the trapped men everywhere.

"Good idea." Said Star.

And so Star went through a certain stage of her life. And Marco learned something more about Sabo.

But what none of them knew that a big change was coming in a most unexpected way... one that would forever change the magical landscape of Echo Creek.

Next Time: Thanks to a bet, Star gave her magic book toe Ferguson, who turn gave it to their classmate Janna. And thanks to her mom's nagging in practicing spells she has to get it back. But when she, Marco and Luffy got looking for Janna thanks things begin to happen. What's going on? And does it have to with Janna. Find out next time!