In a post in prompt 4, someone said everyone has a celebrity crush on Captain America.

I want to see that. I want Matt getting flustered when meeting his childhood hero. Maybe he owned Captain America toys, had a poster on his wall, his dad used him as an example of a good American, perhaps got inspired that a short, asthmatic poor kid from Brooklyn became a hero, maybe actually visiting Steve Rogers' old home...

Just give me all of that. :) please?