Bio dynamic (hartwin/merhartwin)

This is a fanfic where everyone is born with a biological dynamic of Dominant, submissive or neutral. The dynamic is registered on a scale of high dom, dom, dom/neutral, neutral, sub/neutral,sub,high sub etc. Dominants poses the biological ability to soothe and give a submissive what their biology craves and to keep them mentally stable. Neutrals sometimes struggle to find a partner willing to date them because a sub will need a dom to keep them stable and a dom will crave looking after a sub. However for the neutrals willing it is very often they will be invited into a polyamorous relationship with a dom and sub pairing, this is commonly for subs that may crave more love and soft affection when dating a high dom who focuses more on their biological dynamic.