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1:1 abs anus bodily_fluids bushiroad chain clothing demon demon_lord_asmodai erection future_card_buddyfight genitals glans hoodie humanoid humanoid_genitalia humanoid_penis king's_waist lying male mammal muscular muscular_humanoid muscular_male not_furry on_back pecs penis pink_body simple_background solo spikes sweat tail topwear vein veiny_penis yellow_background