FURVERT!

5_fingers animal_genitalia animal_penis anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro balls big_penis biped blakenfen canid canine conditional_dnp cutaway deep_throat duo equid equine equine_genitalia equine_penis fingers flared_penis genitals hair hi_res horse internal interspecies irrumatio male male/male male_penetrated male_penetrating male_penetrating_male mammal muscular muscular_male nipples oral oral_penetration organs penetration penile penile_penetration penis penis_in_mouth sex stomach vein veiny_penis