Rule 34 Dev - 2020 anthro anthro_penetrating anthro_penetrating_human avian beak bird bottomwear bulge clothed clothed/nude clothing crouching dialogue dirty_talk duo feathers fellatio grey_background greyscale hair hand_in_hair hand_on_head hi_res human human_on_anthro human_penetrated interspecies male male/male male_on_anthro male_on_human male_penetrated male_penetrating mammal monochrome nude onomatopoeia oral partially_clothed penetration penguin penile sex shorts simple_background sketch sound_effects speech_bubble tail_feathers text touching_hair underscore_b|5434252816