animal_genitalia animal_penis balls bodily_fluids crossgender cum cum_drip dripping duo equine_genitalia equine_penis feral feral_on_feral feral_penetrated genital_fluids genitals herm hooves incest_(lore) intersex intersex/intersex penetration penis sex teats udders wings furlow my_little_pony princess_celestia_(mlp) princess_luna_(mlp)
What can i say, the Sisters really love each other.