Rule 34 Dev - 2018 animal_genitalia animal_penis anthro balls black_fur black_pawpads black_penis black_tongue closed_eyes digitigrade dragon equine_penis erection fur furred_dragon horn horsecock hybrid ill_dingo knot lying male male_only masturbation nude on_back open_mouth pawpads paws penile_masturbation penis penis_grab simple_background solo sovy spread_legs spreading tongue white_balls white_fur|3350648376