Alien Takeover

In this world aliens took over turning earth into a homeowner for them and destroying all human guns weapons and defenses. But the aliens grew fond in humans and saw potential pets in them so they made factualities that in the span of a year could simulate 50 generations of evolution in humans put inside, these humans became smaller stubbier cuter and more appealing and were sent to pet stores for alien families which, these aliens adapt fast and learn culture and languages in less then an hour not even needing a translator with their flexible vocal cords. These humans in stores could be bought and many modifications and items were made available for them. Like aquatic implants making them have webbed hands or slimy skin and gills on neck and tower features, other top ones were gender changes body fat changes and robotic implants that could make them robots with organic insides that can look different with many designs. Also it is Illegal for them to neuter humans and instead get devices from humans to deal with those products problems along with many other things, most wear armor and suits outside of their homes but inside they’ll sometimes take them off. You- can be any sort of human and you can be a human who hid and isn’t changed, a human sent to a facility though after most of the population were changed they shut down most of them, or a changed human inside of a store waiting to be purchased. Also the aliens are very friendly see you as cute and friendly, and also will use devices to calm you down or make you more friendly towards them if necessary and they control most of the galaxy. They are called the Nexons and they’re twice the size as humans and have gray slimy skin webbed 3 finger hands and feet, digitigrade legs to run fast with and their faces are humanoid but with 3 eyes sharp teeth more oval shaped heads than round but only a bit and their weapons are spears with electric force and stunning laser blasters females are same but feminine