Rule 34 Dev - 1boy 2024 abs ai_generated animal_genitalia animal_penis avaru balls bara beard big_penis black_hair body_hair brown_body brown_fur centaur dark_hair equid equid_taur equine equine_genitalia equine_penis facial_hair flaccid freckles fur genitals hair half-human hands_on_hips horse horse_penis horse_tail horsecock human humanoid humanoid_taur male male_centaur male_focus male_nipples male_only mammal mammal_taur masculine mature_male muscles muscular muscular_male nature nature_background nipples nude_male pecs penis solo stern_expression stubble sweat taur vein veiny_penis|12210033552