OK, I'll start things off then. I won't have time to do a ficlet tonight but hope to do one over the weekend. So I'll default to one rec and one self-rec, both entirely consistent with my head canon that Clint & Natasha, thanks to their assassin-y ways, met loooong before they became partners at SHIELD via that botched kill order/different call thing.

Not mine:
Come for the Espionage, Stay for the Sex by andacus (who used to be a member of this bar - wonder what happened to her?? I love her stuff. Go check it out!!)

Mine:
Red Wedding