Rule 34 Dev - 5_fingers animal_genitalia animal_penis anthro anus balls bdsm belt big_penis black_balls black_hair black_nipples black_penis black_tail bodily_fluids bondage bound butt clothing collar equine_anus equine_genitalia equine_penis erection fingers flared_penis fur genital_fluids genitals grey_body grey_eyes grey_fur hair hooves legs_up lying male mottled mottled_body mottled_fur mottled_genitalia mottled_penis nipple_dip nipples nude open_mouth penis pink_penis precum presenting presenting_anus presenting_hindquarters puffy_anus raised_leg restraints saliva simple_background solo spread_legs spreading submissive submissive_male tail tongue tongue_out underhoof white_body white_fur white_hair conditional_dnp tgt1512 tega_(tgt1512) equid equine horse mammal digital_media_(artwork) hi_res|22332044490