Rule 34 Dev - 2019 a.m.o.s. accipitrid accipitriform animal_genitalia anthro anus ass avian balls bearded_vulture bird bite canid canine choose_your_own_adventure collar digitigrade feathers fondling fur gavin_stien hi_res hybrid killioma knot leash male male/male mammal nude old_world_vulture penetration penile penis sheath submissive vulture|3734875512