sentences:  Article 38 of the Lithuanian Constitution states "Marriage shall be concluded upon the free mutual consent of a man and a woman".Same-sex marriage is also explicitly banned in Article 3.12 of the country's Civil Code, stating that "Marriage shall be concluded with a person of the opposite sex only".Moreover, the country's Civil Code allows the institution of partnerships to be approved by the legislative authorities, although Article 3.229 of the Code restricts them to heterosexual couples.