4:3
anatomically_correct
anus
bdsm
bestiality
black_and_white
bondage
bound
digital_drawing_(artwork)
digital_media_(artwork)
duo
equid
equine
female
feral
forced
genitals
hoofer
hooves
horse
line_art
lying
mammal
monochrome
on_back
simple_background
spread_legs
spreading
torture
vulva
white_background
