Rule 34 Dev - 2017 abs anatomically_correct anatomically_correct_penis animal_genitalia animal_penis anthro balls big_eyes black_fur black_penis blue_eyes canine canine_penis collar detailed_background digital_media_(artwork) ear_piercing erection forest fox fur gorsha_pendragon happy knot lying male male_only mammal muscular muscular_male nature naughty_face nude on_back orange_fur outside penis piercing saerro sheath shiny smile solo spiked_collar spikes spread_legs spreading teeth tree white_fur|2838023048