against_glass against_surface animal_genitalia animal_penis anus anus_on_glass backsack balls balls_on_glass big_balls big_penis black_anus black_balls blush butt equine_anus equine_penis feral genitals grass half-erect looking_at_viewer looking_back looking_back_at_viewer male nude_male on_glass outdoors path penis plant presenting presenting_anus presenting_balls presenting_hindquarters presenting_penis puffy_anus raised_tail rear_view saggy_balls savanna smile solo tree vein veiny_penis window palekemono_(director) equid equine mammal zebra hi_res