As you see, I have only described the relationship of a boy to his father and mother; things proceed in just the same way, with the necessary reversal, in little girls. The loving devotion to the father, the need to do away with the superfluous mother and to take her place, the early display of coquetry and the arts of later womanhood, make up a particularly charming picture in a little girl, and may cause us to forget its seriousness and the grave consequences which may later result from this situation. Let us not fail to add that frequently the parents themselves exert a decisive influence upon the awakening of the Oedipus complex in a child, by themselves following the sex attraction where there is more than one child; the father in an unmistakable manner prefers his little daughter with marks of tenderness, and the mother, the son: but even this factor does not seriously impugn the spontaneous nature of the infantile Oedipus complex. When other children appear, the Oedipus complex expands and becomes a family complex. Reinforced anew by the injury resulting to the egoistic interests, it actuates a feeling of aversion towards these new arrivals and an unhesitating wish to get rid of them again. These feelings of hatred are as a rule much more often openly expressed than those connected with the parental complex. If such a wish is fulfilled and after a short time death removes the unwanted addition to the family, later analysis can show what a significant event this death is for the child, although it does not necessarily remain in memory. Forced into the second place by the birth of another child and for the first time almost entirely parted from the mother, the child finds it very hard to forgive her for this exclusion of him; feelings which in adults we should describe as profound embitterment are roused in him, and often become the groundwork of a lasting estrangement. That sexual curiosity and all its consequences is usually connected with these experiences has already been mentioned. As these new brothers and sisters grow up the child’s attitude to them undergoes the most important transformations. A boy may take his sister as love-object in place of his faithless mother; where there are several brothers to win the favour of a little sister hostile rivalry, of great importance in after life, shows itself already in the nursery. A little girl takes an older brother as a substitute for the father who no longer treats her with the same tenderness as in her earliest years; or she takes a little sister as a substitute for the child that she vainly wished for from her father.