If a cuck couple really enjoys cuck sex, why should they not stick with it? Fertilisation is a natural result of sex. Why shouldn't the woman let the black bull impregnate her if that is what she and the cuckold instinctively calls for? The greatest advantage of cuckold procreation is genetic diversity and strength. The woman obviously wants a baby from a stronger, taller, darker man for some reason, make it happen. The cuckold must understand this and raise the baby as his own. This is a wonderful thing and the children that come out of it will love the cuckold as their dada.