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abs animal_genitalia animal_penis anthro athletic avian beak biceps big_muscles big_penis bird black_and_white clothing comic dialogue duo english_text equine_genitalia equine_penis erection faceless_character faceless_male feathers felid fur genitals huge_muscles huge_penis hybrid interspecies liger lion male male/male mammal monochrome muscular muscular_male nipples nude pantherine pecs penis pose science scientific_experiment sketch standing text thick_penis vein veiny_muscles zeusralo zeusralo_(character)