absurd_res all_fours amazin-arts animal_genitalia animal_penis anus balls blonde_hair blue_eyes butt cutie_mark equine equine_penis erection feral fur hair hi_res hooves horse looking_at_viewer looking_back male mammal medial_ring my_little_pony nude penis penis_backwards presenting presenting_hindquarters raised_leg raised_tail rear_view red_hair semi-anthro smile solo yellow_fur yellow_skin