A Puff of Responsibility is a late 2016 Spider-Man/Powerpuff Girls crossover fanfiction written by Max Carroll. The story serves as a direct sequel to the original Powerpuff Girls, taking place 7 years afterwards, with the Powerpuff Girls now teenagers and attending Pokey Oaks High School. The story revolves around 15 year old Peter Parker, a child who had just moved to Townsville from with his Aunt May and Uncle Ben. However, when Peter is bitten by an irradiated spider during a field trip, he gains spider-like powers. But when he doesn't use them responsibly, a burglar kills his Uncle Ben, he vows to use his powers to protect the city in the name of law and order.