FURVERT!

anal anal_knotting anal_penetration animal_genitalia ass_to_ass balls bodily_fluids canid canine canis cum cum_in_ass cum_inside domestic_dog duo erection feral feral_on_feral genital_fluids genitals intraspecies knot knot_root knotted_penis knotting male male/male mammal open_mouth outside penetration penis penis_tip quadruped reverse_doggystyle sheath unbreakable-warrior wolf