Rule 34 Dev - 2023 abs animal_genitalia anthro balls biceps equid equine first_person_view fully_sheathed genitals harness harness_only hi_res horse leather leather_harness leering looking_at_viewer looming_over low-angle_view male male_only mammal manly muscular muscular_thighs navel nipples nude pecs penis sheath simple_background solo spots spotted_body triceps twistedhound white_background|9469931000