Copulation in the Bible

Leviticus 18:6-16 None of you shall approach to any that is near of kin to him, to uncover their nakedness: I am the LORD. 7 The nakedness of thy father, or the nakedness of thy mother, shalt thou not uncover: she is thy mother; thou shalt not uncover her nakedness. 8 The nakedness of thy father's wife shalt thou not uncover: it is thy father's nakedness. 9 The nakedness of thy sister, the daughter of thy father, or daughter of thy mother, whether she be born at home, or born abroad, even their nakedness thou shalt not uncover. ...

Leviticus 15:19 And if a woman have an issue, and her issue in her flesh be blood, she shall be put apart seven days: and whosoever toucheth her shall be unclean until the even.
Leviticus 18:19 Also thou shalt not approach unto a woman to uncover her nakedness, as long as she is put apart for her uncleanness.