Rec of the day

Agent Barton's Strictly Professional Interest by im_ridiculous
Gen; Clint & Coulson (but it's all about the Black Widow and there manages to be C/N subtext even if she's not in the fic); genre: humor, backstory; ~2000 words
Summary: Written for the prompt 'Clint has been obsessed with Natasha since long before he ever laid eyes on her'.

Barton glances up before turning back to the file.
“Yeah, yeah. Listen to this: she once took out 27 heavily-armed assault troops in Kazakhstan, using only a nail file.”
When his handler doesn’t respond, Barton looks up to check he’s listening. “Twenty-seven heavily-armed troops, Coulson. A nail file.”
Coulson pours himself a coffee. “OK, well, be sure and ask what brand she uses. I’ll add a few to the next requisition order.”