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2015 abs animal_genitalia anthro anus bdsm bit_gag black_and_white bondage bound claws clothing coat collar comic dragon electrode extreme_size_difference fangs female fully_bound gag gagged genital_slit genitals group horn human laboratory larger_anthro larger_male line_art male mammal metal monochrome muscular mythological_creature mythological_scalie mythology navel nude pecs reptile ryuzoku_seitai_chosa_han scalie simple_background size_difference smaller_female smaller_human smaller_male tail teeth topwear