Rule 34 Dev - anal anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro anthro_on_anthro anus arms_tied balls big_butt black_body black_fur bound bubble_butt butt canine_genitalia canine_penis duo erection eyebrows fur furniture genitals grey_body grey_fur gums hands_behind_back hands_tied inside interspecies kneeling knot male male/male masturbation muscular muscular_anthro muscular_male nude on_sofa oral penile penile_masturbation penis perineum pink_body pink_fur restraints rimming sex size_difference smile sofa teeth tongue tongue_out white_body white_fur pandottermon ardex_(ardex) twig_(umbra) canid canine canis equid equine mammal wolf zebra 2023 digital_media_(artwork) hi_res|17131216690