Statutes: Pennsylvania

(a) General rule.–Except as provided under subsection (b), a person is guilty of incest, a felony of the second degree, if that person knowingly marries or cohabits or has sexual intercourse with an ancestor or descendant, a brother or sister of the whole or half blood or an uncle, aunt, nephew or niece of the whole blood.

(b) Incest of a minor.–A person is guilty of incest of a minor, a felony of the second degree, if that person knowingly marries, cohabits with or has sexual intercourse with a complainant who is an ancestor or descendant, a brother or sister of the whole or half blood or an uncle, aunt, nephew or niece of the whole blood and:

(1) is under the age of 13 years; or

(2) is 13 to 18 years of age and the person is four or more years older than the complainant.

(c) Relationships.–The relationships referred to in this section include blood relationships without regard to legitimacy, and relationship of parent and child by adoption.