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bodily_fluids comic duo equid equine erection fellatio female female_penetrated genitals horse human interspecies licking male male/female male_penetrating male_penetrating_female mammal monochrome nabesiki open_mouth oral oral_penetration penetration penile penis penis_lick penis_on_tongue saliva saliva_on_penis saliva_on_tongue sex sideways_oral teeth tongue tongue_out tongue_out_fellatio