Persons known to be related to him or her, whether through marriage or not, as an ancestor, descendant, brother or sister of either the whole or the half blood, uncle, aunt, nephew or niece.
Half-blood uncle/niece marriages are valid pursuant to a 2014 State Court decision.
As of 2010, cases of incest involving consenting adults are often not revealed to outside parties, and therefore prosecutions of these cases do not frequently occur.
Cases of parent-adult child incest exposed to law enforcement are usually uncovered by another parent.
"a person is guilty of sexual assault in the third degree when such person engages in sexual intercourse with another person whom the actor knows to be related to him or her within any of the degrees of kindred specified in the statute that specifies which relatives are prohibited from marrying one another."Without regard to legitimacy or adoption, male & his child, parent, brother, sister, grandchild, niece or nephew, father's sister or brother, mother's sister or brother, father's wife, wife's child, child of his wife's son or daughter; female & her parent, child, brother, sister, grandchild, niece or nephew, father's sister or brother, mother's sister or brother, mother's husband, husband's child, child of her husband's son or daughter.
Any person related to another person (not including the 4th degree of consanguinity); marriage void if between man with his grandmother, grandfather's wife, wife's grandmother, father's sister, mother's sister, mother, stepmother, wife's mother, daughter, wife's daughter, son's wife, sister, son's daughter, daughter's daughter, son's son's wife, daughter's son's wife, wife's son's daughter, wife's daughter's daughter, brother's daughter, sister's daughter; between woman with her grandfather, grandmother's husband, husband's grandfather, father's brother, mother's brother, father, stepfather, husband's father, son, husband's son, daughter's husband, brother, son's son, daughter's son, son's daughter's husband, daughter's daughter's husband, husband's son's son, husband's daughter's son, brother's son, sister's son.
In New Jersey and Rhode Island, incest between consenting adults (16 or over for Rhode Island, 18 or over for New Jersey) is not a criminal offense, though marriage is not allowed in either state.
Between parents and children, grandparents and grandchildren of every degree, between brothers and sisters of the half as well as the whole blood, and between uncles and nieces, aunts and nephews.
Extend to children and relations born out of wedlock or any person who sexually penetrates a minor stepchild.
See https:// Persons known to be within a degree of consanguinity which makes marriages void between: parents and children, including grandparents and grandchildren of every degree; brothers and sisters of the half as well as the whole blood; uncles and nieces of the half as well as the whole blood; aunts and nephews of the half as well as the whole blood; first cousins of the half as well as the whole blood (illegitimate and legitimate children and relatives).
A person who is related either legitimately or illegitimately, as (1) an ancestor or descendant of the whole or half blood; (2) a brother or sister of the whole or half blood; or (3) an uncle, aunt, nephew, or niece by blood Ancestor or descendant, a brother or sister of whole or half-blood, or an uncle, aunt, nephew, or niece of whole blood (blood relationships without regard to legitimacy, and relationship of parent and child by adoption).