The Big ImageBoard (TBIB) - anal anal knotting anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro anvil position bodily fluids canid canine canis cum cum on self cum while penetrated cumshot duo ejaculation erection eyes closed fluffy fluffy tail fox from front position genital fluids genitals hands-free hi res knotting larger male legs up lying male male/male male penetrated male penetrating male penetrating male mammal nude on back open mouth penetration penis saliva saliva string schmutzo sex simple background size difference smaller male smaller penetrated surprised expression tongue tongue out wolf