Rule 34 Dev - 2boys anthro anthro_on_anthro bear brown_bear brown_fur cheek_tuft chest_fluff chest_fur chest_tuft colfax cum duo father father_and_son father_bear feral feral_on_feral frottage head_tuft holding_penis humanoid_penis incest little_bear little_bear_(character) male male_only mammal parent penis sex son ursid yaoi|2096221192