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anthro biceps big_muscles bovid bovine braford butt cattle english_text erection foreskin fur genitals grey_body grey_fur gus_(braford)hooves horn huge_muscles humanoid_genitalia humanoid_penis male mammal muscular muscular_anthro muscular_male nude partially_retracted_foreskin penis ring solo tail tail_tuft text traditional_media_(artwork)tuft vein