FURVERT!

animal_genitalia animal_penis anus balls big_anus big_balls bit_gag black_body black_fur black_hair blinders bodily_fluids bridle brown_body brown_fur butt crupper dock_(anatomy)equid equine equine_anus equine_genitalia equine_penis erection eyewear fenn.perrox feral fur gag genitals hair halter harness_bit_gag harness_gag hi_res horse looking_at_viewer looking_back looking_back_at_viewer male male_feral mammal medial_ring mount musk musky_anus outside penis presenting presenting_hindquarters puffy_anus reins saddle saggy_balls solo sunset sweat sweaty_balls sweaty_genitalia tail tail_aside