Hey Guys, This is my first fanfic. Please don't judge it too much, not that I care anyway. Just Don't. Reviews will be appreciated.

Daron Nefcy owns Star vs. the Forces of Evil

Chapter 1: Eternal Promises

It was night in the small town of Echo Creek, Star Butterfly, Princess of Mewni, was walking alone in the dark streets. After the Love Sentence concert, in which she invited her best friend Marco and his girlfriend Jackie, Star went into the Diaz Household to think what she is feeling. This feeling that makes her feel uncomfortable and upset whenever Marco is with Jackie. This feeling that gives her the sudden urge to blast the skater whenever she is kissing Star's best friend

'What's wrong with me?' Star asked herself ' I mean I should be happy that he is finally with her yet I feel empty and dead inside' She thought ' Ever since that clown séance incident, he became more distant than usual, he always talks about Jackie. Ugh! I hate it when he talks about her! But why? What is this weird feeling?"

Star thought as tears dampened the pillow she was hugging tightly. Marco got home and saw her in the balcony; he wanted to thank her about that night's success

"Hey Star!" He greeted. Star didn't budge nor look at him

"Star, what's wrong?"

"Go away, I need to be alone" She said, still not looking

Marco became worried about Star's action, he want to know what's wrong or what keeps her down

'I wish I know what's bothering her so I can cheer her up. It's lonely when the cheerful weird girl is sad" Marco thought

"Star, are you still worried about Glossary?" He said as he walked closed to her. Star was still not looking at him "Don't worry about that tiny blue jerk that betrayed you. You are good in magic, you don't need him. And if you want you can shove me into a book" He said trying to cheer her up but no avail

"This isn't about Glossaryck" She said, her voice muffled in a pillow

"Oh! Is about Oskar?"

"No"

"Did Janna tricked you again?"

"No"

"Is it anything that happened to Pony Head?"

"No"

"Your mom keeps forcing you for responsibility?"

"No"

"Me?"

She froze at the last one and tackled him in a hug crying in his chest

"I don't know what to do anymore" Star said her voice muffled in his chest "If you hangout so much with Jackie now, we can't hangout anymore. You will f-f-forget me! And we will no longer be best friends!"

"Star! I will never forget you; you're my best friend and nothing in this world or any other world could ever change that!" Marco said while wiping her tears

" R-Realy but I thought-" Star was cut when Marco placed his finger on her lip

"Star, Jackie is a cool girl and she is my girlfriend, but she won't replace my one and only weird and magical bestfriend, You" Marco said

" Aaaaw, thats so sweet Marco, HUGS" Star said as she embraced her bestfriend. Marco quickly hug back

"Let's make a promise" Star said while pulling away

"A Promise?" Marco asked

"Yes, A promise that we will be there for each other, never end our friendship no matter what" Star said as her wand started to glow

"I'll go first" Star said then clears her throat

"I, Star Butterfly, will hereby vow from this day to Protect and Help, my best friend, Marco Diaz, till the very best I have" Star promised

"And I Marco Diaz will swear to Protect and never forsake, my one and only best friend, Star Butterfly" Marco swore

"No matter how many challenges we may face, we will never part. Never to leave each other's side, till the very last beat of heart. And if this promise will ever be broken, a punishment must be taken. The price is to never love a friend again, to be devoid from emotions till each other is forgiven. Nighmares may become true and Realities may bend, but we will forever be friends, till the end" They said in unison

The light of the Blood Moon shined on them, passing through the walls and sealing their deals for all of eternity. And the wand absorbed the deal, signing it for the two friends

"Ok now that's over go to bed" Star said

"Buenos Noches, Princessa" Marco said while leaving the room

"Good night, My Prince" Star whispered