Armika Prompt 1: Call Me Maybe (AU)-

"Hey, hey, Erika, did you hear?"
"Hear about what?" Erika looked up at her freckled friend.
"We have a new student!" Marco grinned.
"Boy or girl?"
"Uh… I don't know," the male laughed.
The blonde girl groaned. "It's a boy, isn't it?"
"Pretty much."
"Fantas-"
Right then, the door opened, revealing a boy with blond hair that was a little bit longer than Erika's. His blue eyes darted around; it was obvious he was shy.
Erika stared for a moment with a dropped jaw. She looked back at Marco, gripping his shoulders. "Marco! To the Bat Mobile!"
"You're not Bat Man, Erika."
"… Marco! Up, up, and away!"
"Erika."
"Marco-"
"You're going to hurt yourself just speaking."
"WHO IS THAT."
"Armin Arlert," Jean spoke up.
"Shut up, Bullfart, no one loves you," Erika shot. "Marco! Who is that!?"
"Armin Arlert," Marco replied.
"I just said that!" Jean whined.
Ignoring the taller male, Erika sprinted forward after scribbling something down on a piece of paper. She ran over to the new student. She skidded to a stop in front of the boy (who was talking to Eren and Mikasa) and shoved the paper into his hands. She shot him a smile and ran back to Marco and Jean, yelling something about horses and freckles.
Armin, bewildered, looked down at the piece of paper, surprised (as well as slightly embarrassed) with what was sloppily written before 10 digits.
Call me maybe?