Rule 34 Dev - all_fours anthro backsack balls big_butt blue_eyes butt butt_focus fluffy fluffy_tail fur genitals grey_body grey_fur looking_at_viewer looking_back looking_back_at_viewer male narrowed_eyes perineum presenting presenting_hindquarters purple_background raised_tail rear_view saggy_balls simple_background smile solo tail teasing wiggle mystax canid canine canis mammal wolf 2d_animation animated frame_by_frame short_playtime|20231946455