Rule 34 Dev - 2019 anatomically_correct animal_genitalia animal_penis anthro balls balls_above_penis claws crouching cum erection hi_res knox_(kangaroo) looking_at_viewer macropod male male_only mammal marsupial marsupial_penis nude penis prehensile_penis simple_background smile solo sonsasu spreading tapering_penis teeth thick_tail|3528016824