Rule 34 Dev - 2019 4_fingers 4_toes animal_genitalia animal_penis balls black_nose blush border canid canine canine_penis canis chest_tuft fingers genitals hi_res knot looking_at_viewer loppifi lying male male_only mammal on_back paws penis prick_ears shaded signature simple_background simple_shading spread_legs spreading tail_tuft toes tuft white_border wolf|4731970328