Judgment of the Court (Second Chamber) of 14 September 2023.#DX v Instituto Nacional de la Seguridad Social (INSS) and Tesorería General de la Seguridad Social.#Reference for a preliminary ruling – Social policy – Directive 79/7/EEC – Equal treatment for men and women in matters of social security – Article 6 – National legislation providing for the right to a pension supplement only for women – Preliminary ruling from the Court from which it may be held that that legislation constitutes direct discrimination on grounds of sex – Administrative practice of continuing to apply that legislation despite that ruling – Separate discrimination – Pecuniary damages – Reimbursement of expenditure relating to costs and lawyers’ fees.#Case C-113/22.