Notice that in this long list of relatives that you may not have sex with, there is one relative that is not mentioned -- your daughter. Nowhere in this list, or anywhere else in the bible, is sex between a man and his daughter (or, more generally, between parent and child) forbidden. 18:6-18, 20
"Which was the son of Phares, which was the son of Juda."
Judah "went in unto" his daughter-in-law, Tamar, who was disguised as a prostitute. She conceived and bore Pharez, an ancestor of Jesus. (Gen 38:27-29) It's a good thing it was more than ten generations ago. Otherwise Jesus could not "enter into the congregation of the Lord." (Dt.23:2) 3:33