Hey people! I'm new to the whole show/fandom and I thought it'd be a great idea to make a completely new story to add on top of my list of stories I will never finish.

Nah, this one's gonna be a oneshot so it should be easy to finish. Gotta admit, I watched the first episode and at some point joined the Starco ship without even realizing it. And if the creator of Star vs TFOE doesn't deliver on Starco, tables will be thrown.

Anyway, here's the first story! Possibly one of many to come.

"Maarrrrrcooooooo? Where are youuuu?"

The princess searched the house, looking for any sign of the boy. Usually, Marco would still be asleep and she would 'accidentally' wake him up by jumping on his bed, but today was different. She entered the room and found him absent from the comfortable looking bed. She thought maybe he already woke up and was making breakfast.

Star made her way downstairs and popped her head in the kitchen. "Marco?"

Still no sign of him. Slightly worried, she tapped her foot, trying to think where he could be. She scanned the living room and saw a note on the table.

Star,

By the time you read this, I'm probably in the city buying some groceries. Before you ask, yes, I'm fine. No I didn't wake you up because you were sleeping and you seemed so relaxed and I didn't want to disturb you. Anyway, I'll be back soon, so try not to accidentally destroy the house.

Marco

Star smiled to herself. "Awww he didn't want to wake me up. That's so nice of him."

She sat down on the couch, wondering what to do since her best friend didn't want her to do anything crazy yet, but quickly grew bored of not being able to use any magic to entertain herself. She didn't want to use her dimensional scissors. She wanted to go with Marco. There wasn't much she could do with her magic. Well… nothing that'll entertain her without dramatically changing the house.

"Wait! That's it!" Star beamed happily. She went upstairs and entered Marco's room again, walking over to his closet. "I think it's only fair, Diaz. You went through my secrets closet. Now I get to see what you have," she mischievously stated. She opened the door and started to pull out everything he had. "Although… technically it was my fault you ended up in my closet in the first place… buuuut you did still go through my journal. And no one goes through my… journal…"

The memory of Marco reading aloud her thoughts came back to her. She remembered the panicked state she was in when Marco turned to chapter eleven of her journal. Sure he was her best friend, but she definitely didn't want him to read what she really thought of him. She didn't want him to find out that maybe she didn't think of him as just her best friend. That maybe she was developing deeper feelings for the boy. That maybe she was falling in love with him. She wasn't ready to have Marco find out. Heck, she was barely ready to accept the truth herself.

Star began to blush at the thought. "No one goes through my journal…" she said weakly, pulling out another one of his red hoodies. She stared at the clothes, "Heh… that's kind of stupid… me and Marco…"

She brought the hoodie to her face, picking up Marco's scent. She grew a deeper shade of red as she held it close to her. She giggled. "You couldn't have picked a different set of clothes?" she muttered, looking at the pile of red hoodies and black jeans.

Then an idea came to mind. She remembered how Marco used his psychology powers to help realize her mother issues and how much fun it was when he asked her to roleplay as someone close to her. Star looked at the clothes and shrugged. "He's not gonna notice."

She changed out of her usual clothes and into Marco's. Throwing on the hoodie and jeans, she looked at herself in the mirror. Marco wasn't that tall compared to Star. His jeans were just a bit long and the hoodie seemed to go just down to her upper thigh, but it fit her well enough that it might as well have been her own outfit. She gave a shy smile at her reflection, blushing at what she was doing.

She walked around, acting like her best friend. "Hey everyone! I'm Marco Diaz! I'm no safe kid! I'm a misunderstood bad boy," she said to no one in particular. "This is my best friend Star Butterfly. She's the most awesome person in the universe!" Star motioned to the spot next to her.

Star jumped to where she was previously pointing and responded to herself. "Sup everyone!"

The princess switched back to her Marco side. "Yeah, she's always showing me all these cool places and stuff. Last week, she took me to a dimension where there's no gravity."

"Oh please, you didn't even want to go, Marco. You were scared you'd float into space!"

"Nah, I'm never scared. I'm all for danger! There's only one thing I'm scared of!" the girl exclaimed.

She placed her hands on her hips. "Jackie Lynn Thomas?"

"Exactly! I fight monsters and travel to other dimensions but I'm scared of something silly like confessing to Jackie."

"Ha. Scaredy cat."

"I'm no Scaredy cat. I'm Marco Diaz! The karate master! And definitely not a safe kid…" Star burst out laughing at her 'accurate' representation of her best friend. "What the heck am I even doing?"

"That's what I'd like to know."

Star jumped at the voice. She froze in place, knowing exactly who was standing at the doorway.

"Having fun, Star?" She could practically hear him smirking at her embarrassing act.

She turned to see Marco, arms crossed, trying to hold back his laughter. "Marco! You- I- Y-you're not supposed to be back till later! You lied to me!" Star desperately tried (and failed) to turn the situation on him.

Marco started walking over towards the pile of clothes on the ground. "That's right Star. I said I'd be back later. And guess what?" He threw the clothes back into his closet before turning to Star with a smile. "It's later."

Star stood there, still blushing like crazy. "Th-that's not fair!"

"Riiiight. I'll be sure to tell you specifically next time. So you mind telling me what you're doing in my clothes?"

The princess tried to avoid eye contact as she tried to come up with a valid excuse. "W-well you see, it's actually really interesting!"

"Oh really... "

"Yeah! See, on Mewni, we um… we have a holiday! And on that holiday we, uh… we dress up as someone we love-" Star quickly covered her mouth. Oh no. Did she really just confess to him?

It was Marco's turn to blush. "O-oh… O-okay…"

"Nononononono! Not like that! Or- I mean- not like- well yeah, I do, but- NO WAIT I DIDN'T MEAN THAT- I- I- I-"

"So… you… really like me then?"

The girl was having a complete breakdown. There was no way to recover from this. Not with her horrible attempt at damage control. Now he knows. What if Marco didn't like her like that? What if she just ruined her relationship with him? Star didn't know what to say except the truth.

She stared at her feet and quietly answered. "Yes…"

"You like me?" He asked again.

She nodded.

"You like me?"

Another nod.

"You like me-"

"Yes Marco,I really like you!" Star shouted, wanting to get this embarrassing moment over with.

Marco nodded, still red from the confession.

Star still wasn't sure what he was thinking. Did he accept her feelings? Did he feel awkward about it? Does he want to keep being friends with her?

"Um… Marco? Is this going to change our friendship?" she carefully questioned.

Marco stared at her for a bit before responding. "I'd say so."

Star felt heartbroken. She didn't want their friendship to change. She wanted things to stay the way they were. She wanted to keep being Marco's best friend. But now he feels too awkward about this. He probably wants to stay distant with her.

She looked down and let her hair cover her face. "I'm… sorry Marco. I-"

She felt a pair of hands lift her head up and before she knew it, her lips met his. She was shocked at the sudden action but quickly melted into the kiss. She kissed back with equal passion, her arms sneaking their way around Marco.

The two held each other for a minute before separating. The two looked away, shyly glancing at each other now and then with red faces.

"But… what about Jackie?" Star started

The boy shook his head. "I guess… I grew out of my crush. I spent so much time with you, I started to… I don't know, fall for you."

Star lowered her face, too shy to make eye contact. "I… I'm… glad you did," she quietly whispered.

Marco lifted her head up and gently kissed her again. "You know… that's a good look for you."

Star looked down and realized she was still wearing his clothes. She turned away, her face still red. "Heh… thanks... You think… maybe I can keep it?"

Marco smiled. "Sure… but don't expect me to wear your clothes."

First fanfic for Star vs FOE. How'd you like it? I might add more oneshots later on. Didn't know how to end it, so apologies if the ending seems a bit abrupt.

Come review and request for any oneshots you'd like to see. Have a good day!