Section 25(5) of the Aliens Control Act 96 of 1991, by omitting to confer on partners in permanent same-sex life partnerships the immigration benefits it extends to spouses, constitutes unfair discrimination on the grounds of sexual orientation and marital status contrary to section 9(3) of the Constitution, and violates the right to dignity in section 10. Such discrimination is unfair because: (1) it affects a vulnerable group with a history of disadvantage; (2) it fails to protect family relationships that are indistinguishable from heterosexual marriages; (3) it conveys that same-sex partners lack inherent humanity warranting protection; and (4) it constitutes a severe invasion of dignity. The limitation cannot be justified under section 36(1) as there is no rational connection between excluding same-sex partners and the legitimate aim of protecting heterosexual family life—extension of benefits would not harm traditional marriage. Courts have the constitutional power under section 172(1)(b) to remedy under-inclusive legislation by "reading in" words where: (1) striking down would inappropriately deny benefits to all; (2) the constitutional defect can be cured with sufficient precision; (3) it would not create an unsupportable budgetary burden; (4) it respects the legislative scheme within constitutional constraints; and (5) it provides effective relief while leaving Parliament free to amend within constitutional limits. A "permanent same-sex life partnership" is one with an established intention of the parties to cohabit permanently, determined on the totality of facts including duration, cohabitation, ceremony, recognition by family/friends, shared household, financial interdependence, and mutual provision for one another.