'Sister's' in the Bible

[As for] your sister's nakedness, [whether] your father's daughter or your mother's daughter, [whether] {born at home} or {born abroad}, you must not expose their nakedness.

" 'As for a man who takes his sister, his father's daughter or his mother's daughter, and he sees her nakedness and she herself sees his nakedness, it [is] a disgrace, and they shall be cut off {before} the eyes of {their people}; he has exposed his sister's nakedness--he must bear his guilt.