Rule 34 Dev - 2017 anal anal_sex animal_genitalia animal_penis animated anthro anthro_on_feral balls black_fur blue_eyes blue_markings blue_penis canine canine_penis claws collar duo feral fox fur knot leash male mammal markings on_top orange_eyes outside pawpads penetration penis reverse_cowgirl_position secretden sex tail_mouth teeth toe_claws tongue tongue_out tree white_fur yaoi zoophilia|2522853336