Rule 34 Dev - anthro argument avian_feet beak boxer_briefs boxers_(clothing) briefs briefs_only clothed clothing feet flippers group male membrane_(anatomy) semi-anthro simple_background toes topless trio underwear underwear_only webbed_feet whistling miau levi_(miau) taylor_vee anatid anseriform avian bird duck penguin hi_res monochrome|22453428550