FURVERT!

1:1 animal_genitalia animal_penis anus balls bestiality black_body bound butt canid canine canine_genitalia canis chain chained cropped_ears darkmare domestic_dog equine_genitalia equine_penis feral genitals male mammal penis pit_bull presenting presenting_anus presenting_hindquarters raised_tail saggy_balls sketch solo sun tail tail_anus