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2d_animation 5:4 animal_genitalia animated animated_gif balls canid canine conditional_dnp erection eyes_closed foreskin frame_by_frame genitals humanoid_genitalia humanoid_penis hybrid_genitalia hybrid_penis klaide male mammal masturbation nude partially_retracted_foreskin penile penile_masturbation penis retracted_foreskin retracting_foreskin sheath sheathed_humanoid_penis short_playtime simple_background sitting solo uncut_with_sheath white_background