FURVERT!

absurd_res anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro balls big_balls big_penis biped equid equine equine_genitalia equine_penis erection feral flared_penis furgonomic_piercing furgonomics genital_piercing genitals half-erect hi_res horse male male_anthro male_feral mammal medial_ring mottled mottled_genitalia mottled_penis navel penis penis_tip piercing saggy_balls scarlanya sheath sheath_piercing solo tail uneven_balls urethra urethral_fossa vein veiny_penis