FURVERT!

anal anal_penetration anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis arf-fra balls bayard_zylos dreamworks duo equid equine equine_genitalia equine_penis erection feral feral_on_feral flared_penis from_behind_position genitals glowing glowing_eyes hi_res horse looking_at_viewer male male/male mammal medial_ring mottled mottled_genitalia mottled_penis mounting outside penetration penis pink_penis scar sex sheath spirit:_stallion_of_the_cimarron spirit_(cimarron)