No. Kentucky prohibits all forms of sexual relations between siblings under KRS 510.140, classifying it as incest. Non-sexual sibling relationships face no legal restrictions, but workplace or institutional policies may impose additional constraints.
Key Regulations for Dating Siblings in Kentucky
- KRS 510.140 criminalizes sexual conduct between siblings, punishable as a Class D felony with 1–5 years imprisonment.
- KRS 530.020 extends penalties to half-siblings, reinforcing strict enforcement under state law.
- Local ordinances in Louisville-Jefferson County prohibit cohabitation under nuisance statutes, though enforcement targets public health concerns rather than relationships.
The Kentucky General Assembly has not amended sibling dating laws in the 2026 legislative session, maintaining the status quo. Federal courts have upheld these statutes under rational basis review, citing historical prohibitions. Employers in regulated sectors (e.g., healthcare, education) may impose disciplinary actions for relationships violating institutional policies, even if non-sexual. No Kentucky court has recognized common-law marriage between siblings, further limiting legal recognition.