What is sexual autonomy?
Sexual autonomy is the freedom to decide for yourself whether, when and with whom to have sexual relations. In U.S. law it is protected mainly as part of the liberty guaranteed by the Due Process Clause of the Fourteenth Amendment, the same line of cases that protects contraception and family decisions.
The idea works in two directions. It limits the government, which may not criminalize private consensual conduct between adults just because a majority finds it immoral, and it underlies the law of rape and sexual assault, which punishes sexual acts done without consent. The broader privacy doctrine is covered in the right to privacy.
- Meaning
- The right to make one's own decisions about sexual conduct
- U.S. basis
- Due process liberty under the Fourteenth Amendment
- Key cases
- Bowers v. Hardwick (1986), Lawrence v. Texas (2003)
- Korea
- Seduction crime struck down 2009, adultery 2015
Sexual autonomy is not only about repealing laws. The same principle that keeps the government out of consensual private life is what makes sex without consent a crime.
How U.S. law changed
- Bowers v. Hardwick (1986): by 5 to 4, the Supreme Court upheld Georgia's sodomy law, saying the Constitution conferred no fundamental right to engage in homosexual sodomy.
- Lawrence v. Texas (2003): by 6 to 3, the Court struck down a Texas law criminalizing private consensual same-sex conduct and overruled Bowers, holding that adults' intimate choices are part of the liberty protected by due process.
- Military rules: Congress passed the Don't Ask, Don't Tell Repeal Act, signed on December 22, 2010, ending the policy that barred openly gay service members.
- Adultery laws: a few states still have adultery crimes on the books but rarely enforce them. New York repealed its 1907 adultery law when Governor Kathy Hochul signed the repeal on November 22, 2024.
For Korean students, a comparison of Korea's Constitutional Court rulings on the seduction crime, adultery and the military provision is in Love and the Law in Korea: Constitutional Rulings on Seduction under Promise of Marriage, Adultery, and the Military Sodomy Provision. A debate brief against reviving the adultery crime is in Should Korea Bring Back the Adultery Crime? A Debate Brief Against Revival Based on Sexual Self-Determination, and a comparison of foreign sex offense prevention policies in Foreign Sex Offense Prevention Policies and Lessons for Korea: New York's SAFE Model, Social Impact Bonds, Sentencing and Treatment Programs.
| United States | Korea | |
|---|---|---|
| Constitutional basis | Fourteenth Amendment due process | Constitution Articles 10 and 17 |
| Consensual conduct crimes | Sodomy laws struck down in Lawrence (2003) | Seduction crime (2009) and adultery (2015) struck down |
| Military | Don't Ask, Don't Tell repealed (2010) | Military provision upheld (2016, 2023), narrowed by the Supreme Court (2022) |
Korea's rulings
Korea's Constitutional Court derives a right to sexual self-determination from the Constitution's protection of dignity and the pursuit of happiness. On November 26, 2009 it struck down, 6 to 3, the crime of intercourse under a false promise of marriage, and on February 26, 2015 it struck down the adultery crime, 7 to 2. The limits on criminal punishment connect to the principle of legality and theories of punishment.
The provision of the Military Criminal Act punishing sexual acts between soldiers was upheld 5 to 4 in 2016 and again in 2023, but the Supreme Court held en banc on April 21, 2022 that it does not apply to voluntary acts in private spaces. Since June 19, 2013, rape law has protected any "person," not just women. Procedural limits on state power are discussed in due process.
When you compare these cases, start with the interest the law protects. Courts treat a crime very differently depending on whether it protects a person's own choice or a social value like marriage or public morals.
- Is adultery still a crime in the U.S.?
- In a few states it technically is, but prosecutions are extremely rare, and New York repealed its law in 2024.
- What did Lawrence v. Texas decide?
- That states cannot make private, consensual sexual conduct between adults a crime, because it is protected liberty under the Due Process Clause.
- Does sexual autonomy matter for rape law?
- Yes. Modern sexual assault law is built around protecting a person's right to decide, which is why consent is central.
References
- Bowers v. Hardwick, 478 U.S. 186 (1986). Cornell LII
- Lawrence v. Texas, 539 U.S. 558 (2003). Cornell LII
- Constitutional Court of Korea, 2009Hun-Ba17 (adultery), February 26, 2015. Constitutional Court of Korea