The source of the sentence that the daughter is dad's little lover.

Daughter is the lover of my father's last life "comes from Liu Yong's book How much love can I have in my life, which is about my father's love for the family."

But this is just an image metaphor. Psychologists have found that most fathers have the complex of falling in love with women, while mothers have the complex of falling in love with children. This is not incest, but a common phenomenon. Because the opposite sex can highlight good feelings. Therefore, the joke is that the daughter is the lover of her father in his last life. It shows that the daughter is very loved by her father.

Freud once borrowed the story of Greek tragedy and put forward "Oedipus Complex" and "Elektra Complex", which respectively refer to the infatuation of boys and girls with heterosexual parents in the process of psychological development, that is, the desire for incest. But he also pointed out that this desire was not allowed by society, so it was later suppressed. If a person shows this desire without restraint, he may be severely punished like Oedipus and Elektra in Greek tragedies.

The "Oedipus Complex" is also called "Elektra Complex". Because girls have an instinctive tendency to love the opposite sex, they demand to love their father and envy their mother. This "father's love and mother's jealousy" has produced a "father-loving complex"

According to Greek mythology, Elektra was the daughter of Agamemnon and Maya king Clytaemestra. Clytaemestra hurt her husband Agamemnon because of her "love affair". After her father was killed by her mother, Elektra paid her brother Orestesto to her father's good friend to take care of her. When her brother grew up, she murdered her mother and committed adultery with her brother and avenged her father.

Elektra did this because she thought her mother had done something wrong and disgraceful, and she was sorry for her father. Based on the personal plot of this myth, Freud believed that Elektra had the feeling of loving her father and jealous of her mother. The "father-loving complex" came from this.