Rule 34 Dev - 2022 anthro ass back_muscles bear biceps centerfold deltoids genitals hand_on_hip hand_on_leg hand_on_thigh hi_res looking_at_viewer looking_back male mammal manly metal muscular muscular_butt muscular_thighs nanoff pattern_background penis pinup polar_bear pose simple_background solo triceps ursine|8222161360