FURVERT!

animal_genitalia animal_penis animal_vulva blep bodily_fluids border_collie brozoi canid canine canine_genitalia canine_penis canine_vulva canis clenched_teeth collie cum cum_in_vagina cum_inside cutaway domestic_dog dominant duo exclamation_point eyes_closed female female_penetrated feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral from_front_position genital_fluids genitals herding_dog hi_res internal internal_vaginal knot knot_bulge knotting larger_dom larger_male lying male male/female male_penetrating male_penetrating_female mammal mating_press multi_nipple nipples on_back on_pillow pastoral_dog penetration penile penile_penetration penis penis_in_vagina pillow sex sheepdog size_difference smaller_female smaller_penetrated teeth tongue tongue_out vaginal vaginal_knotting vaginal_penetration vulva wolf