Rule 34 Dev - 2023 anthro ass back_muscles balls bear biceps big_butt forest genitals gigasaddle glowing glowing_markings illuminated leaning leaning_forward light light_beam looking_at_viewer looking_back male mammal markings musclegut muscular_arms muscular_butt muscular_legs open_mouth outside perineum plant polar_bear pose presenting presenting_hindquarters slightly_chubby smile solo sunbeam sunlight tree triceps ursine|8178532040