Rule 34 Dev - animal_genitalia animal_penis anthro balls canine_genitalia canine_penis genitals knot knotted_penis looking_at_viewer male muscular open_mouth penis sheath smile solo standing text tongue tongue_out homogenousrule bird_dog canid canine canis domestic_dog golden_retriever hunting_dog mammal retriever english_text hi_res model_sheet|22254999305