Four year old trans girl who’s given extremely low dosage hrt early… though the shady pharmacy their parents are getting it from neglected to mention that they’re canine hormones…
Permanently altering the brain chemistry to crave doggy dick and go through heat cycles…
An even shadier surgery once they turn six, human outtie bits replaced with canine innie ones; unknowingly still fully intact and taking well to the new host.
By eight they’re pregnant with their second litter…