Rule 34 Dev - anatomically_correct animal_genitalia animal_penis anus ass backsack balls big_balls blancmark brown_fur clydesdale draft_horse dunstanmarshall equine equine_penis faceless_male fur hi_res horse horsecock male male_only mammal markings penis perineum puffy_anus raised_tail sitting socks_(marking) solo swing tag|2205466296