Rule 34 Dev - 1boy 2024 ai_generated anatomically_correct anthro avaru ball_tuft balls balls_to_knees big_penis black_penis brown_fur close-up equine_genitalia equine_penis flaccid fur furry furry_only genitals humanoid male male_focus male_only mammal muscular muscular_male nude penis pubes saggy_balls simple_background solo tagme tuft vein veiny_balls veiny_muscles veiny_penis veiny_thighs|12450639216