This is in part an homage to Dmaynard and in part something else. I’m not sure how much, but there will be violence down the line, so don’t say I didn’t warn you.
It supposedly came here on a piece that broke off some comet or another. An alien virus that somehow was able to infect humans. Theories that it was somehow artificial weren’t seen as that outlandish. Scientists and the media called it the FEV, Female Enhancement Virus. Others called it things like Amazon Disease, Valkyrie Syndrome, or most commonly the Mankiller virus. No, it didn’t actually do anything to men. But women (defined in this context as human females in no younger than eighteen) who caught it from either exposure to comet dust released into the atmosphere or bodily fluids of an infected person (male or female) started to grow, becoming taller, bustier, stronger, wider, thicker, and above all, MUCH stronger and more muscular. Older infectees grew bigger, but even the youngest were beasts, over seven feet and a ton of inhumanly dense, superhumanly strong, massive, bulging muscle. And they were all eager to kill any men they came across, a task they were well-equipped to perform. To the horror of the uninflected, their muscles and bones were dense enough to make them almost completely bulletproof, and allowed them to casually toss cars one-handed and literally leap tall buildings in a single bound. They used their saliva, milk, and blood to transform other women, and seemed to make a hobby of killing men in the most brutally inventive ways they could. Naturally, the world people were used to collapsed in a matter of days, if not hours. Large parts of military and government institutions tore themselves apart as female soldiers and politicians abruptly became monstrous, musclebound giantesses and slaughtered their comrades. Several anchorwomen and reporters covering the early days of the crisis grew out of their clothes on air and killed their coworkers, threatening all men as they did so. The cheerleaders at an NFL game all became superwomen and playfully slaughtered both teams. Unsurprisingly, those men who survived and those women who hadn’t been changed had a number of different reactions to all of this. Some called it the work of the devil, others the wrath of God. Others gave up on any such concepts. Meanwhile, some cults focused on the FEV itself sprung up. Some women, both in these cults and out, actively sought out the giantesses in hopes of being transformed themselves. Others, of both sexes, either tried to fight back (to fairly little success), or, in most cases, just left the population centers in search of someplace they could build some kind of stable life in the new world. It is with one of those last groups that our story begins.