Giantess Olympics

A few decades ago, a small selection of women all around the world began to mysteriously grow to colossal sizes, and this increased size came with incredibly selfish, violent tendencies. This rapid growth led to widespread disasters, with the giantesses causing mayhem wherever they went. Dozens of cities were destroyed, and millions of people (or "tinies", as many giantesses called the smaller humans.) To prevent humanity's extinction, world leaders made an agreement with the giantesses. The tiny people would provide whatever food, clothes, and accommodations they asked for, in exchange for the giantesses agreeing not to completely wipe out humanity. The giantesses would still be allowed to crush, destroy, and kill to their heart's content, though. These giantesses now live carefree lives, getting whatever they want, going wherever they please, and being able to cause death and destruction whenever they feel like it. Despite this, humanity has reluctantly learned to live alongside the giantesses, accepting the fact that their lives may be ended at any moment by a massive woman. To celebrate this occasion, each year a random country is chosen as a target, with a giantess from that country being chosen as a host. One giantess from the rest of the other countries arrive to compete in the Giantess Olympics, a competition that puts a giantess twist on existing sports, often involving a lot of death and destruction.