Inspiration:

So, I've seen a bunch of "Avengers find out about Peter being a teenager and aggressively try to adopt him" fics, but what about almost the exact opposite, where they only find out he was a teenager retroactively when he mentions his age as an adult? Here's a series of probably completely unrelated oneshots about that very concept. Inspiration in the first chapter. (:

As you can probably assume, I have no commercial rights to Spider-Man, the Avengers, or Marvel in general. At the moment, that's all Disney.