Rule 34 Dev - 2014 2boys abs all_fours animal_genitalia anthro ass_up back black_hair blue_fur canine canine_penis casparr closed_eyes collar doggy_style duo fox foxgear from_behind front_view fur furry furry_only goji grey_fur hair husky knot looking_down male mammal moan no_humans penis sex tattoo toned yaoi|1924780816