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4:3 absurd_res aggressive_fertilization animal_genitalia animal_penis animal_vulva anus balls black_anus black_vulva bodily_fluids canine_genitalia canine_penis canine_vulva cervical_contact close-up comic cum cum_in_uterus cum_in_vagina cum_inside cum_on_knot cum_on_own_knot cum_on_own_penis cum_on_penis cum_on_self erection eyewear female female_penetrated feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral genital_fluids genitals glasses hi_res impregnation internal internal_vaginal intraspecies kissing knot knotting male male/female male_penetrating male_penetrating_female ovum penetration penile penile_penetration penis penis_in_vagina pink_penis pink_vulva rectangular_glasses sex sheath stella_(stellaamoris)suiro tan_balls tan_sheath urethra uterus vaginal vaginal_fluids vaginal_fluids_on_penis vaginal_knotting vaginal_penetration vulva zinc_(character)