You must not have sexual relations with the sister of your mother or your father, for it is exposing one’s own kin; both shall bear their iniquity.
KJV
And thou shalt not uncover the nakedness of thy mother’s sister, nor of thy father’s sister: for he uncovereth his near kin: they shall bear their iniquity.
ASV
And thou shalt not uncover the nakedness of thy mother’s sister, nor of thy father’s sister; for he hath made naked his near kin: they shall bear their iniquity.