So you are in favour of incest, then.
Now you are being very silly-->-
Lev 18:4 You must obey my laws and be careful to follow my decrees. I am the LORD your God.
Lev 18:5 Keep my decrees and laws, for the man who obeys them will live by them. I am the LORD.
Lev 18:6 "'No one is to approach any close relative to have sexual relations. I am the LORD.
Lev 18:7 "'Do not dishonour your father by having sexual relations with your mother. She is your mother; do not have relations with her.
Lev 18:8 "'Do not have sexual relations with your father's wife; that would dishonour your father.
Lev 18:9 "'Do not have sexual relations with your sister, either your father's daughter or your mother's daughter, whether she was born in the same home or elsewhere.
Lev 18:10 "'Do not have sexual relations with your son's daughter or your daughter's daughter; that would dishonour you.
Lev 18:11 "'Do not have sexual relations with the daughter of your father's wife, born to your father; she is your sister.
Lev 18:12 "'Do not have sexual relations with your father's sister; she is your father's close relative.
Lev 18:13 "'Do not have sexual relations with your mother's sister, because she is your mother's close relative.
Lev 18:14 "'Do not dishonour your father's brother by approaching his wife to have sexual relations; she is your aunt.
Lev 18:15 "'Do not have sexual relations with your daughter-in-law. She is your son's wife; do not have relations with her.
Lev 18:16 "'Do not have sexual relations with your brother's wife; that would dishonour your brother.
Lev 18:17 "'Do not have sexual relations with both a woman and her daughter. Do not have sexual relations with either her son's daughter or her daughter's daughter; they are her close relatives. That is wickedness.
The DO NOTS are what is stipulated---Just because incest was committed as recorded, it does not mean that the Creator ordained it, as stipulated in the Torah these things were recorded to show where people went wrong, not to encourage it.