Spider-Girl (Peter ParkerX Reader)

She was bitten by a spider, she thought it was normal and went off to finish the day until minutes later she thought she was dying. She collapsed on her bed, fainted, and when she woke she was going through a transition from skinny to skinny and hella strong with talents that she thought were impossible.
She meets Tony Stark who tells her what's happening and gives her a suit but he doesn't say anything about Spiderman, so when 3 months later she runs in to Spinderman they partner up and fight crime in the neighborhood together, but though, they don't know each others identity.
So what happens when they're actually best friends outside of superhero work and are hiding a big secret from eachother, and that big secret is something they both share.