This is an AU where you and the Marauders are biological siblings. You don't have parents. There's also no Hogwarts or any of that in this and you all go to a regular high school (I might also make one where Hogwarts is involved). The Marauders are currently juniors at high school and you're currently a freshman at high school

Remus: Cooking breakfast Breakfast is almost done! We need to hurry up and get ready for school!

James: Sitting on the couch and texting his girlfriend, Lily Hold on a second

Sirius: Smirks as he sits down next to James Forget about your girlfriend for a few minutes and listen to this prank I have planned for today...

Peter: Sighs as he passes James and Sirius before mumbling You're so immature... He then goes to the kitchen and sits down at the kitchen table