Warnings: Swearing

Backstory: During a trip to Stark Tower and Stark Industries, aliens attack and Peter goes to help, but his classmates follow. Identity reveal, post-Homecoming, Peter has a room/lives at the Tower, he uses the Iron Spider suit but Infinity War hasn't happened.

The trip to Stark Industries was supposed to be an easy one. Tour the lower labs, meet a few smaller scientists, etc.
Until Peter Parker screwed the whole trip over.
"Level five security breach. All visitors and employees, report to your nearest saferoom. Level five sec-"
Alarms blared and lights flashed as the Midtown students sprinted after Peter. He was practically flying down the hall towards the elevators.
"PARKER!" Mr. Harrington bellowed.
The boy glanced back, eyes wide with panic, and smacked the button. By the time the doors were opening, Peter was already scrambling inside, even as everyone else dove in after him.
Students were on top of each other, squeezing in as the doors slid shut.
"Fuck!" Peter swore loudly, making everyone jump. He never swore, no one had ever heard him. "God DAMN IT!"
No one moved as his hands tangled in his hair and his chest heaved. "Peter..?" Ned whispered.
Peter whirled around, jabbing his finger towards everyone. "You can't tell anyone about this, got it? Tony's already gonna kill me since I'm fighting during school hours again." He took a deep breath and closed his eyes for a moment. "FRIDAY, take us to the armory. Then take these guys to my room."
"Of course, Mr. Parker," the robotic voice said, and the elevator slid into motion.
Running a hand through his curls, Peter seemed to calm down a bit. "Ned, you know where my old suit is, right?"
Ned nodded, brows furrowed. "Y-yeah, but-"
"Get the mask on and keep in contact with me. Karen'll get the monitors up so if you're okay with being the Guy in the Chair again, that'd be great." Peter eyed everyone else. "Don't go through my stuff."
The doors opened, and Peter leapt out, running towards the circular dais in the middle of the room.
"Mr. Parker, the penthouse is currently already on lockdown. I cannot bring the elevator to your floor."
Peter gritted his teeth. "Okay. Fine. This is fine. Get in here, guys."
As everyone trailed into the room, they looked around. Workbenches and shelves were covered with weapons, pieces of armor, and even what seemed to be Captain America's shield. Peter was typing rapidly on a floating screen, biting his lip.
"Okay, FRIDAY, gimmie seventeen a," he said.
"Of course," the AI responded, and the dais lit up.
Peter held out his arms, and metal encased his body like nanobots from his feet up. Red, gold, blue, and black shone and spread as he flexed his fingers when they were covered.
When a metallic version of Spiderman's mask concealed his face from view, everyone's jaws dropped.
"FRIDAY, open communications with the team," Peter said, and the mask folded back again. He was completely serious, almost determined as he began flicking through holograms on his wrists. "Open window eighty-three seven beta one."
Four gold limbs shot out of the back of his suit and he nodded at his classmates as they lifted him off the ground.
"Don't touch anything."
Then Peter was jumping out of the window and out of sight.

A/N: I just love field trips and identity reveals. That's all.