Clint/Natasha Fan Fiction - Same Time, Next Hit (Four Times Clint And Natasha Met) 

International Master Assassins are bound to run into each other in the line of work. (Hit and miss, so to speak.) Clint Barton and Natasha Romanoff are no exception. A different take on the "different call".
Keywords: the avengers, hawkeye, black widow, clint barton, natasha romanoff, clintasha, fan fiction