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anal anal_penetration anthro anthro_on_anthro bodily_fluids clenched_teeth duo equid equine eyes_closed felid from_front_position genital_fluids genitals horse interspecies kneeling lion male male/male male_penetrated male_penetrating male_penetrating_male mammal mastery_position monochrome nude open_mouth pantherine pawpads penetration penis precum predator/prey sex simple_background sketch tail tail_tuft teeth tuft werepuppy white_background