Leviticus 18:17 WBT

¹⁵  Thou shalt not uncover the nakedness of thy daughter-in-law: she [is] thy son's wife, thou shalt not uncover her nakedness.

¹⁶  Thou shalt not uncover the nakedness of thy brother's wife: it [is] thy brother's nakedness.

¹⁷  Thou shalt not uncover the nakedness of a woman and her daughter, neither shalt thou take her son's daughter, or her daughter's daughter, to uncover her nakedness; [for] they [are] her near kinswomen: it [is] wickedness.

¹⁸  Neither shalt thou take a wife to her sister, to vex [her], to uncover her nakedness besides the other in her life-[time].

¹⁹  Also thou shalt not approach to a woman to uncover her nakedness, as long as she is put apart for her uncleanness.