rule 34 adelar elric animal genitalia animal penis bodily fluids brown body brown fur canid canine canis cum detailed background domestic duo female female penetrated feral from behind position fur genital fluids genitals grey body grey fur grin hair hi res knot looking at viewer loomus alefur001 male male penetrating male penetrating female mammal night open mouth penetration penis sage kaerfflow sex size difference smile snow straight tongue tongue out tree vaginal penetration 4187547