YoYo Enjoy (This chapter has been edited to be better, so if you read it before 2/17/20, reread it for better content)
The first time Bruce met Peter was back before the name "Mini Stark" existed. He'd needed a breather and went for a walk around the park to clear his head, and was on his way back to the tower. As he reentered the front doors a skinny teenager in a blue jacket jogged in after him. When Bruce reached the front desk and passed the checkpoint, he noticed the teen arguing with the receptionist.
He paused long enough to hear the kid say "But I need to talk to Mr. Stark! Come on please! FRIDAY knows me! Just ask her!"
He heard the receptionist respond "Even if she does, you don't have the clearance to go up, and there is no way I'm disturbing Mr. Stark just so you can talk to him. He is a very busy man."
The kid groaned in frustration, but backed off from the desk. Bruce stepped into the Avengers elevator, and as he pressed the button for his floor he made eye contact with the kid's exasperated and slightly desperate expression.
When Bruce reached the upper labs he quickly found Tony and let him know what was happening. To his complete surprise, Tony smiled in amusement.
"Brown hair, slightly short, looks like a nerd even though nothing about him should suggest it?"
Bruce just nodded and Tony smiled again. "I'll be right back."
Bruce watched after him in slight confusion, but eventually decided to just get to work.
A few minutes later, Bruce heard voices from the hallway, signifying Tony's return.
"...cracked. Karen didn't say anything, so I thought it was still fine. But the shooter gets jammed every once in a while. Then last time it jammed I... uh.. fell a little and my earpiece went out. That's why I came in like this-" Bruce watched in silent interest as they entered the room. The kid motioned towards his clothes as he finished talking, and Bruce's curiosity grew. The kid cut himself off as he finally noticed Bruce standing there. Bruce watched his eyes widen, and prepared himself for the mandatory "Hulk!" To his surprise (and secret delight) the kid instead squealed "Dr. Banner!" and ran over to shake his hand.
"I'm a huge fan of your work in gamma physics and nuclear radiation! Your research has done amazing…" Bruce zoned out slightly as the kid gushed on, staring into his eyes with a childlike look of wonder and excitement. After almost 30 seconds of the kid's rant, Tony laughed and pulled him away. "Careful there Pete. You'll make me think I'm not your favourite."
Bruce looked between the blushing kid and smiling man, and felt his confusion grow even more. Who was this kid that managed to get Tony looking so relaxed? Bruce hardly dared to admit it, but Tony's smile was showing almost outright loving adoration towards the boy.
The kid seemed to notice Bruce's expression and held out his hand. "It's an honor to meet you, Doctor. I'm Peter Parker."
Bruce nodded slowly. "And Spiderman?"
The kid's eyes grew wide and he stared in silence at the man for a few seconds. "H-how did you know? I only mentioned my earpiece and-" the kid stopped suddenly and sighed. He smiled and continued, "-and web shooters. I guess it wasn't too hard for a genius to put two and two together was it?"
The two smiled at each other, and Bruce had the sense that he had just found a new friend in this strange boy.
Clint and Scott up next chapter. Go read my other story "Ned Leeds Field Trip to Stark Industries" in the meantime!