100 years after a nuclear fallout
after the great nuclear fallout 80% of humanity was killed and the ones that did survive turned into half animal monsters girls due to the radiation some of these monster types include.
cat girls: these monsters feature cat ears on top of thier head as well as tails and paws. they are very agile and are often found in the ruins of the old societys.
lamias: these monsters appear to look like an average human girl except that from the waist down they have a giant snake tail. their tails are on average about 10-15 feet long. lamias usually live in deserts
cow girls: these monsters have the largest breasts of any species and 4 of them at that! they also have an udder just below their breast. when fully stimulated they produce about 5 gallons a minute from all 4 breats and their udder combined.
arachnids: these monsters look normal but from the waist down have a spiders body which produces silk used for making webs. arachnids are commonly found in caves and ruins of the old societys
harpys: these monsters appear as a average 11 year old human but with bird talons instead of legs and wings instead of arms. they are often a prime target for more predatory monster girls. harpys usually live in forests
humans: humans make up about 1% of the population. all humans are futanari and are the only species with a cock. this means that whenever a human is caught by any type of monster girl they are used as breeders so the monster girls can reproduce. due to this only about half of all humans are actually still sentient. humans live wherever they can and are constantly on the move
but these standards for each species are about to change