Rule 34 Dev - ambiguous/ambiguous ambiguous_gender ambiguous_pred ambiguous_prey blush bodily_fluids duo fangs female feral feral_pred head_in_mouth human_prey jaw looking_at_viewer mouth_shot open_mouth oral_head_gulp oral_vore saliva smile swallowing teeth tongue vore willing_prey kaname common_hippopotamus hippopotamid human mammal hi_res|8332908150