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2d_animation ambiguous_gender ambiguous_penetrated anal anal_penetration animal_genitalia animated animated_gif anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro black_knot black_sheath blue_sheath bouncing_butt butt canid canine close-up conditional_dnp dacad dry_anal duo erection frame_by_frame from_behind_position generation_4_pokemon genitals half-erect knot level_difference loop lucario lying male male/ambiguous male_on_top male_penetrating male_penetrating_ambiguous mammal max_(dacad)nintendo on_front on_top penetration penile penile_penetration penis penis_in_ass pokemon pokemon_(species)prone_bone_position red_penis riolu same_evolution_group sex sheath sheath_pressing short_playtime speed_bump_position thick_sheath