This is a doodle set I made between 2020 and 2025, but colored more recently, for a collection of an AU-idea that was inspired by a manga called Animal X. I don't really recommend reading the manga (unless you can handle Banana Fish, as it has similar dark elements to it but more along the lines of bigotry/misogyny and ancient-cultural-traditions/shock, and a lot of gore/death because dinosaur people), BUT I was inspired by certain aspects of the plot to make this AU.
The short version of the idea is; Mobians are an ancient race that have been living alongside humans the entire time, but with the ability to transform into a humanoid form to blend in for the most part, minus being super strong and having unique abilities that humans can't acquire. Each tribe is focused only on one animal species throughout the years, with most of the natives interbreeding with their own kind, which later causes issues.
Gerald Robotnik was originally creating man-made Mobians to help "purify the Mobian-gene pool", as it had become so inbred by the tribes originally trying to keep to their own species that nowadays if two of the same animal-type try to breed, there is a very high chance the mother will die from childbirth and/or the child will be born with medical issues (deformity, infertilization, stuck between Mobian-and-humanoid and/or unable to transform from one or the other, or stillborn).
GUN finds out about this project, and decide to create their own man-made WEAPON of Mobians, first by capturing Gerald and Maria, and the infant Shadow, and attempting to clone the man-made Mobian into an instant adult form, which creates the unstable Mephiles. They use his DNA as a base, however, and create the birth of the Metarex and Seedians, and even attempt to crossbreed all three species with humans--some barely a success, while others a complete failure with a loss of life on their volunteers. Through their trial-and-error, they discover that while it is possible to crossbreed humans and Mobians, the body structure for most female humans isn't hardy enough to carry most Mobian offspring to term, but male human builds are more suited. With this in mind, they create an altering drug to use on any willing male volunteer, disguising it as an innocent vitamin sample, and Chris Thorndyke unknowingly becomes one of their victims.
With the alteration to Chris' body, not only is he able to carry a Mobian child to term, he also releases a scent that attracts all male Mobians to him as a potential "fertile female" mate, which causes him to get kidnapped by Sonic, who takes him to the hedgehog tribe to become his wife. This doesn't pan out, as at this point Chris is still in the dark on what the heck happened to him, and isn't interested in becoming someone's wife, but ends up becoming friends with Sonic, Amy, and other Mobians along the way as he finds himself trying to avoid GUN capturing him--though when GUN releases Shadow into the wild to "recapture his promised-bride" with the promise to also release Maria from captive if he's successful, the two form a bond and agree to team up and rescue Maria together.
Other stuff happens in between all this chaos, along with Victor being the father of Cream, Tails rescuing Cosmos from captivity, Dave (the intern from Sonic Boom) playing a role to help keep Chris out of GUN's clutches, and Chris having Silver and Gold with Shadow... but by this point I might as well just write this as a fanfic, huh? XD
