Hey everyone! It's STARCO WEEK 3! That means 7 fics in 7 days! One for each day! The prompts can be seen on tumblr. Check them out! See the other cool stuff other artists and writers will post! I'll be posting my own stuff on my tumblr page too. Go ahead and check it out if you get the chance!

Anyway, today's prompt is Bad Boy x Princess AU where our starco pair have the opposite personalities.

Enjoy!

"All I'm saying is that you lend me your wand for one second and-"

"No."

"C'mon, princess! Do you have any idea how funny using that… syrup... tsunami thing… in the hallways would be? Janna and Oscar would kill to pull off a prank like that!"

Star rolled her eyes at the boy, picking up her pace as the two headed towards the school. "Your immature prank would have quite the punishment from your administrators."

Marco scoffed. "And when has that ever stopped me before?"

"You do understand that another large scale prank would result in you leaving the school permanently, yes?"

"Gee, since when did you start to care, princess? Are you finally starting to like having me around?" he asked teasingly, nudging her arm.

Star swatted his hand away with her wand and brushed her sleeves as if to dust the filth from her clothes. "Just as an owner would grow fond of a dog, I suppose even I could learn to appreciate the company of a subhuman animalistic brute like yourself."

"Well, fuck you too, princess."

"Language, Marco Diaz. But in truth, I would prefer not to have you leave the school so suddenly, otherwise I would need to settle in with another host family, and I sincerely doubt they would be as accepting as your household."

Marco chuckled. "Yeah, my parents are pretty cool like that, aren't they? Trust me, you'll never find a better family like mine, you hear?"

Star stopped, turning around and tapped the boy's head repeatedly with her wand. "Yes, that's why I am not lending you this wand for your silly pranks. I happen to like your family." She turned on her heels and continued to walk towards the entrance of the school.

He growled at her actions, rubbing his head. "Keep that up and I'll kick you out of the house myself…" He caught up to the princess, 'accidentally' bumping into other students as he walked through the hallway. "You know, princess, you should really cut loose, once in awhile. Cause some mayhem, why don't you? Enough with the royal crap. Just relax, enjoy life. Let crazy stuff happen! It's better than being a total killjoy bitch all the-"

She spun around, giving a death stare to her host. "This 'killjoy bitch' is going to cast you into the void if you continue spouting out any more stupidity." Marco stared at the princess, shocked at her sudden outburst… and their sudden closeness. He blinked a few times, trying to hold back his blush while keeping his heart under control. Star held her ground for a moment, glaring at the boy at close proximity before nervously breaking down, holding her hands to her mouth. "Oh nononononononono, I just said a bad word, I'm so sorry. I promise never to say that again, why did I say that, such foul language, it feels awful, it's disgusting! I'm sorry, mother. I'm sorry, father. Oh nononono," she rambled.

Marco shook his head, his heart now beating properly, and stared in disbelief at how quickly she changed. "...Wow… That's… kind of sad."

Star wiped her mouth, whimpering at her outburst. "I should never say such a thing, I'm the princess of Mewni. Royal families never say such vulgar language…"

"Man, you are really letting this whole royalty thing get to your head. Just relax. A few curse words isn't gonna kill you." The boy rolled his eyes, smirking at the teen's reaction. "Such a drama queen. Like you ever did anything bad in your life."

"That's... not true. I used to be quite the rebellious child."

"Oh no. What'd you do? Stay up past your bedtime?"

"Well, that too, but much more after that. I was almost as much of a delinquent as you. I just choose not to do those things anymore. It's uncivilized and unethical."

Marco scratched his chin, thinking. "Unethical, huh? Well, how's this for unethical. You do something bad and I promise... I'll make some super awesome nachos for you."

Star's eyes widened. "Wh… r-really?"

He smiled. Despite how restrained the princess acted, she could never turn down his nachos. "Absolutely! That is… if you can do a little bad…"

"W-well… I…" She bit her lips, weighing her options. Nervously laughing, she turned around and tried to distract herself from the idea of the delicious meal. "Y-you can't bribe me like that, you fool. A-as if I-I'd subject myself to doing immoral things just for a simple plate of your… delicious… nachos…"

"I'll add more cheese this time-"

The princess grabbed his shoulders, pulling him close to her face. "What do you need me to do?"

Once again, Marco's heart raced, his blush slowly revealing itself. "O-okay… well… here's an idea…"

"You can't be serious…"

"Go on, princess. All you have to do is pull the fire alarm."

"But… there is no fire…"

"No, there isn't. Now pull the alarm."

Star looked nervously at the vibrant red alarm, biting her lips once more. "Er… M-maybe we can do something else. I mean, there's no point in inconveniencing everyone and evacuating the building."

"Believe me, you'll be doing everyone a favor. Save them from the boredom 'n stuff."

"Okay, but consider this idea, what if-"

"Do you want your nachos or not?"

"..." She looked back at the red device. "But…"

"No alarm, no nachos."

Star hesitantly reached out to the handle and in a swift motion pulled the alarm. The blaring sound echoed through the hallways, making the pair wince at the obnoxious sound. A teacher came out from one of the classrooms and found the two standing by.

"Did you two pull the alarm!?"

Star nodded slowly, scared of the repercussions.

"Good work, you two! One of my students mixed the wrong chemicals and started a fire!"

"What!?" The teens shouted.

"Get going! You definitely saved some students!"

The teacher continued to escort the remaining students out of the room, leaving Star and Marco in disbelief.

"...You gotta be shitting me…"

"Language."

"Alright, princess. That obviously didn't work out so well." Marco took his seat at the park bench.

Star shrugged. "I wouldn't say that. After all, there was a real fire in the classroom."

"You're supposed to do something bad. That was a good thing you did back there."

"Thank you!"

"That wasn't a compliment..." He sighed, looking around for another opportunity, observing the bystanders talking among themselves, eating their own food and walking their dogs. "Hmm… alright… new plan. Ready to annoy some people?"

"I would prefer not to."

"Great. See those dogs? I want you to cut the leashes and let them run like crazy. The owners should have a hard time getting them under control."

Star glanced at the several dogs in the park, walking alongside their masters. "Perhaps… maybe one dog will suffice? I would be ruining someone's day doing that. No need do it to everyone, right?"

"Nachos."

The very name of the food made her mouth salivate. She coughed and mumbled to herself. "...R-right…"

With the wand in her hand, she pointed it in the general direction of the dogs and shot multiple bursts of light, burning the leashes and freeing the animals. She then created a floating squeak ball and let it roam the park, gathering the attention of dogs as they followed the ball, running from their masters.

"Heh… nice one, princess-"

"Hey!" The two turned to see one of the dog owners standing over them. "Did you just make that floating ball?"

Marco leaned over and whispered to the princess. "Ooooooh, you're in trouble…"

She shot a dirty look at the boy before returning her attention to the owner. "Um… y-yes?"

"That… is awesome!"

"W-what?"

"My dog has a ton of energy and it takes me hours to walk the little guy. That floating ball is just what I needed!"

Marco stood up, annoyed at the owner's reaction. "Dude! Your dog is running around the park unsupervised because of this girl and you're okay with that?"

"Meh, these dogs are well trained enough."

"God… damn it."

"Language, Marco Diaz."

The two returned home after an exhausting day of trying to find something bad for Star to do. By some rule of the universe, everything the princess did ended up being for the better. After the park, they tried vandalizing cars, starting fights, making the sidewalk slippery, even making prank phone calls! All of which ended up benefiting people rather than producing negative outcomes. It was impossible for Star Butterfly be bad.

"This was a wasted day," Marco said, taking his seat on the couch.

"Come now, Marco Diaz. I thought it was plenty of fun."

"Yeah, fun because it ended up helping people."

"Isn't that the best kind of fun?"

He stuck his tongue out, pretending to gag at how corny she sounded. "Yeah… sure princess…"

"Now… about those nachos…"

"Yeah, no. You still didn't do anything bad."

"...What if I steal something?"

"You're gonna steal something? Yeah right. You stealing something would probably make someone richer."

"I'll steal from you."

Marco laughed. "HA! Okay, now that's rich. Go ahead, see if you can steal something from me. I'll genuinely be impressed if you can snag anything-" Star leaned in and kissed the boy on his cheek, causing him to jump back to the other side of the couch with a red face. He brought a hand to his cheek, trying to process what she just did. "W-what… you… why…"

"I stole a kiss," she simply stated with a smirk on her face. "I believe I deserve some nachos, yes?"

Marco's heart pumped rapidly at her action, he was certain she could hear the beat. "U-um…"

Star took her seat on the couch, and smiled. "I'll be waiting for my prize."

Marco slowly backed into the kitchen, keeping his eye on the princess. He turned the corner and leaned against the counter. "Steal a kiss…?"

He let out a small nervous chuckle, his face burning as he replayed the moment in his mind.

"That's just cheating... Star..."

Rebel princess does things her own way.

REVIEW RESPONSE

RobLebron: lol sorry for not answering. Since you're reviewing anonymously, I couldn't send you a PM and have to answer you via updates :P Sorry~ anyway, unfortunately, your request for a fic for Star's Chapter 11 isn't going to be up during this week. I'll get to that after this week is done though! If you want to know the schedule, you can search starcoweek3 on tumblr and see all the prompts lined up for this week! :D

Me: lol thanks! No one's opinion is trash in my trashy opinion :P

Turtleneck: No, thank you! I'm glad you enjoyed the fic!

Guest 1: Thanks! I always wondered what StarxTom would look like...

Stretch27: lol Thanks! Sounds like I have his character down. Surprising that you don't like Tom though! I think he's pretty cool :P To each their own. Haha, Get ready for more Starco coming this week!

xXPokeFictionXx: I always wanted to know what their relationship would be like. Seemed like Star wouldn't be too thrilled about it haha. And thanks for going back to chapter 9 :P I'm glad you enjoyed that one!

Captin Jar: Marco's birthday, huh? I'm surprised I didn't think of that idea already! Now that's a request I can pick up!

FantazyFangirl13: lol I'm glad you enjoyed it! I always have trouble making fics longer, but I try my best :D