The first time Hawkeye and the Black Widow meet, they are in Paris and he is send to kill her. They are supposed to be enemies, to kill each other or die trying. But they don't, because it may be the first time Hawkeye and the Black Widow meet, but it's not the first time Clint and Natasha met. This is the story of two broken souls that keep meeting each other.

"I know you, Herbert Alfred. You are a gentleman and a hero. And this is the only time I have ever despised those traits in you." London, 1917, and Bert gives Mary the bad news. Mary becomes selfish. Mary/Bert oneshot.