Leviticus 18:6
"'See that ye go to none of your nighest kindred for to uncover their privities, for I am the LORD.
Leviticus 18:7-19
The privities of thy father and thy mother, see thou unhele not: she is thy mother, therefore shalt thou not uncover her privities.
Leviticus 20:11-12
If a man lie with his father's wife and uncover his father's privities, they shall both die for it, their blood be upon their heads.
Leviticus 20:17-21
"'If a man take his sister, his father's daughter or his mother's daughter, and see her privities, and she see his privities also: it is a wicked thing. Therefore let them perish in the sight of their people; he hath seen his sister's secretness, he shall therefore bear his sin.