Rule 34 Dev - 2018 4_toes anatomically_correct anatomically_correct_penis animal_genitalia animal_penis balls blush canine canine_penis claws cum cum_on_feet duo erection feral feral_on_human feral_on_male foot_fetish footjob fur gay hair human human_on_feral humanoid_penis interspecies kneeling lying male male_on_feral male_only mammal nude on_back open_mouth pawpads paws penis pink_pawpads precum questly sex simple_background size_difference smile sniffing spread_legs spreading teeth toe_claws toes wolf yaoi zoophilia|3135906720