A Big Love From A Little Heart

In this Universe, everyone at the age of 16 gets classified. Wizarding World has potions to classify a magical being while Muggle World uses a blood test to classify non-magical beings. The classification process is considered to be very private. The guardians of the teen are to be present when the teen is classified, and the teen and classifiers are the only people allowed to be privy to the classification of the teen. Though a private process, the result will be displayed on the Government websites of the respective world, along with the teen’s citizenship. In the case of Wizarding World, the classification is right alongside the magical signature of the witch or Wizard in the registry kept in the Ministry. The potion and blood test never give a wrong result, though there are certain cases of fluke where a person has registered falsely.
The classification didn’t bring any more discrimination, which had been fought against in the Victorian era. A person can get classified into one of the three major classifications i.e., Dominant, Baseline, or Submissive. The Dominants usually have larger bone structures, while the submissives usually have smaller bone structures. Inside the major category of Dominant and submissive, there are a few other sub-classification, which are listed below.

Dominants:

1. Masters: Harshest Dominants, are also called as 'Sadists' used as a slang.  They require a huge amount of control and can only be paired with Slave
2. Owners: A dominant who usually loves to take care of pets, can be harsh and indulgent at the same time. All of them are into Pet Play. Do not practice the lifestyle 24/7, only when their Sub is in Pet Space
3. Alphas: They are natural dominants, who want to always protect and provide for their Omega mate as well as their family whom they consider as their pack, have werewolf instincts, and they go into rut every month for 2 days. 
4. Caregivers: They are the gentle Doms, who wants to take care of littles, like a parental figure, are usually called Daddy or Mommy by the Littles. They are strong, to be able to lift the Littles and are specially empathetic. They are very nearly asexual,  having sexual urgesvery rarely. 
5. Conservative Dom: Doms who love to be challenged, and are more traditional and likes to follow the old culture of being the sole provider and 'man of the house' dynamic. 
6. Liberal Dom: Who occasionally practices the power dynamic, and can easily live as a baseline if desired, but has a little urge to dominate once in a while.

Submissive:

1. Slave Sub: An exact match for Masters, who craves Harsh Dominance, wants to be controlled in every aspect of life, is almost all the time masochist, and craves pain too.
2. Pets: Submissives who love to be owned, and go into pet space, where their mindset is very similar to that of the pet. Wizards take this to another level by changing many parts of their bodies with the aspired animal they want to be. Their body gets modified a little when in their pet space, letting them have tails, ears or other body parts of the animal their self is affiliated with. 
3. Omegas: Submissives, who are gentle and want to be protected by their Alpha but love to take care of people or their pack. They go into Heat, where they will want to be bred once every month.
4. Littles: Submissives who go into a space called little space, where they regress into a little kid of a certain age. Their mindset will also be that of a little kid at the time. They always are small in physical size, never reaching above 4’5 ft.
5. Bratty Sub: Subs who love to test the boundaries and behave like a brat. Though usually want a controlling Dom.  Usually the best pale for them is Conservative Dom. 
6. Liberal Sub: The counterpart of Liberal Dom. Wants to be dominated once in a while