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animal_genitalia anthro bodily_fluids canid canine canis close-up duo forest genitals guts half-erect hi_res high-angle_view inside_stomach internal intestines larger_anthro larger_male lips lipsticking liver male male/male male_anthro mammal open_mouth oral_vore organs penis plant saliva sepulte sheath size_difference smaller_anthro smaller_male stomach stomach_acid swallowing teeth thick_bottom_lip tongue tree vore wolf yellow_eyes