Howdy, this is Jack-be-Nimble, here with another story for you guys. This is my take on the Bad Boy Marco AU. This is rated for sexual content, including nudity and lemons, language, violence and a few other things I might be forgetting at the moment, but I'm sure I'll remember down the road.

So, with that being said, please enjoy the first chapter, mates.

Princess Star Butterfly of Mewni stood in front of her parents, Moon and River Butterfly, as Moon held her hand out with a golden and crystalized wand resting on her palm, "Star, as you know, today is your fourteenth birthday and you are to receive the most valuable family heirloom, the magic wand,"

"Yes mother,"

"And I hope I don't have to remind you that this wand is a big responsibility, and if it were to fall into the wrong hand, it will be disastrous and bring about the end of the entire Butterfly Kingdom and the neighboring Kingdoms as well,"

"Of course, mother, I understand, mother," she took the wand and the royal family of three watched the wand took on a different form. Star smiled and looked up at her parents, "Mother, father, if you will excuse me, I would like to go practice using the wand." Her parents nodded as Star turned and began walking away from her parents.

Star smiled as she walked down the streets of Mewni, lightly waving the wand and quietly humming to herself. Hearing screams of terror, she stopped and looked back. Her blue eyes widened when she saw buildings burning as citizens ran and screamed in terror, "Oh dear, mother and father are going to hear about this and are going to send me back to Saint Olga's,"

She looked up at the castle and frowned, "I hope mother and father will understand it was just an accident and they will not send me away," she took a deep breath and walked towards the castle, ignoring the screams filling the air.

Star stepped through the gates of the castle and saw her parents standing next to a chimera drawn carriage, watching as two servants loaded a rather large trunk into the carriage. Frowning, Star slowly walked up to her parents, "Mother, father," her parents looked back, stern looks crossing their faces, "I understand you two a very crossed with me, but please understand it was a simple accident. I did not mean to set Mewni ablaze," her parents continued to stare at her and Star took a deep breath, "But if you are to send me to Saint Olga's, I understand,"

She looked down and heard her father sigh, "Sweetheart, we're not sending you to Saint Olga's,"

Star looked up, a confused gaze in her eyes, "No, we know you wouldn't intentionally destroy Mewni, which is why we will be sending you to a safer dimension, a dimension called earth," her mother said in an emotionless tone.

"Earth," Star shook her head as her parents ushered her into the carriage and the sound of a portal being cut opened could be heard and the carriage began moving forward. Star looked up at the castle and frowned as she watched it fade into the distance.

The royal family stood in an office while a short, plump man sat behind a desk, reading over the file laid out in front of him, "So you say you're from a different dimension, huh?"

"That is correct, good sir," Moon answered.

The man hummed and shook his head as he chuckled, "I'm sorry, but this place is obviously not for her," River picked up a chest at his feet and opened it, revealing gold and jewels and the man's eyes widened, "As I said, she will fit in perfectly here,"

"But she is going to need a guide while she attends here," River said slowly and the man hummed and rubbed his chin.

Students sat in their classroom, focusing on their schoolwork while Marco Diaz, Janna Ordonia, Hope Hadley and Oskar Greason, the school's troublemakers, sat in the back of the classroom, snickering to themselves as they swatted a crumbled-up piece of paper back and forth between each other. Marco smacked the piece of paper off the desks and quietly cheered, "Game point," his friends smirked and rolled their eyes as Janna bent down and picked the paper up.

The sounds of the P.A. system hissing caught everyone's attention as they heard the principal speak, "Attention, attention, will Marco Diaz report to the principal's office, Marco Diaz to the principal's office."

"What?" Marco hissed, slamming his hands on the surface of the desk and stood up, "I didn't do anything today! They're lying!"

"Oh sure, and the Easter Bunny owes me money! Which one is more believable!"

Marco growled and narrowed his eyes, "Just go see what the cheap bastard wants," Oskar groaned and shook his head, "We have proof that we're innocent, these little rat bastards however…they don't have anything on us," Marco took a deep breath and nodded before stepping away from his desk and walked across the classroom and out the door.

Marco walked up to the principal and narrowed his eyes when he spotted a blonde girl standing next to him, "Okay bastard, this better be good. Because if you're wasting my time…well I got a lot of pent up aggression to get out,"

"You better watch your tone, Mr. Diaz," Marco growled as the principal gestured to the girl next to him, "This is our new foreign exchange student, Star Butterfly,"

"Hello Marco, it's a pleasure to meet you,"

Marco growled and glared at the principal with narrowed eyes, "She needs a guide and if you are willing to do this, I will be willing to make it worth your wild,"

"You got my attention, now let's see if you can keep it. Fair warning though, I don't like people wasting my time,"

"Of course you don't," the principal cleared his throat and shook his head, "If you keep Miss Butterfly out of trouble and you and your band of misfits stay out of trouble yourselves for the rest of the semester, I will personally see to it that your records will be wiped clean,"

"All of our records? Mine, Janna's, Hope's and Oskar's? They'll be wiped clean?"

"So clean you can eat off them, my boy," the principal smirked and Marco looked away, "Or you can go with the alternative. Ignore what I said, keep causing trouble throughout the school and your parents won't get the chance to ship you away because I'll see to it that you'll be on the next bus to military school,"

"Heh, you're grabbing me by the balls, old man," Star's eyes widened and the principal remained unmoved at his words, "Fine, you got a deal, but if you screw me and my friends over, even the slightest screw up and there won't be a military school in the country that'll hold me," he looked at Star and narrowed his eyes, "Okay blondie, let's go. We're going to meet up with my friends," Star silently nodded before the two teenagers walked away from the principal.

The two teenagers walked down the hall and Star looked at Marco and softly smiled, "Thank you for showing me around, Marco and thank you for inviting me to spend time with your friends,"

"Don't get the wrong idea, blondie, I'm doing this for me and my friends, not for you," he looked back and Star's smile slowly faded into a small frown, "And who's your host family?" Star looked at him in confusion and Marco let out a frustrated sigh, "As an exchange student, you'll be living with a host family. Don't tell me cheapskate Skeeves didn't assign you a host family?"

"Oh, yes, Principal Skeeves did…let me see here," she reached in her purse and pulled out a folded-up piece of paper and unfolded it, "He said I will be living with a Mr. and Mrs. Rafael Diaz," Marco growled and shook his head, "Is something wrong, Marco?"

"Yeah, you're my new housemate," Star frowned and Marco sighed, "Look Goldilocks…it's not that I'm not happy about having a new housemate or anything it's just…me and my parents…well we don't see eye-to-eye…haven't for a while,"

"If you don't mind, what happened?" Marco frowned and looked away, "I…I am sorry, Marco. I didn't mean to upset you,"

"You're a goody girly, aren't you?"

"I must be a proper princess, Marco, and showing any disrespect is not only improper, but mother and father will also send me back to Saint Olga's Reform School for Wayward Princesses,"

"Whatever," Marco sighed and shook his head, "Look…if I'm up to it, which is very rare, I'll tell you why I don't get along with my parents, but I advise you not to hold your breath. It's something I don't like talking about,"

"May I ask you one question before we meet up with your friends?" Marco looked at her and arched a brow as Star frowned and looked down, "Do your friends know why you and your parents are estranged?"

"Yeah…they do, girly, but they won't tell you unless I say it's okay." Marco sighed and ran his fingers through his hair, "And a fair warning…me and my friends…we don't take too kindly to anyone, student, staff, you name it," Star frowned and Marco took a deep breath, "We've had more detentions and suspensions than anyone else in this school…but…don't worry your pretty little head. I won't let them mess with you,"

"Okay…thank you, Marco," Marco looked back at her and Star's small smile returned, "And even though you said you are doing this for you and your friends…I want to thank you again for showing me around,"

"Don't mention it, girly," the loud blare of a bell ringing filled the halls and Marco sighed, "Alright missy, we need to meet up with my friends in science. Let's go…and stay close," Star nodded and followed close behind Marco as students walked out of their classrooms and down the hall in different directions.

Okay mates, this is my first chapter to my attempt at a Bad Boy AU and I hope it grows into something good. Enjoy mates.