Rule 34 Dev - 3_fingers 69_position animal_genitalia animal_penis anthro anthro_on_anthro anus backsack ball_lick balls black_mane blue_eyes bodily_fluids brown_body brown_fur brown_mane butt cum cum_drip cum_in_mouth cum_inside cum_on_penis dripping duo equine_genitalia equine_penis erection fellatio fingers fur genital_fluids genitals grey_background hand_on_butt hooved_fingers hooves licking lying male male/male mane medial_ring nude on_back oral penile penis perineum puffy_anus sex simple_background tail tail_grab tongue tongue_out vein veiny_penis orobas_(artist) equid equine horse mammal 2014 4:3 digital_media_(artwork)|4011408030