Sexual relations with a minor between the ages of 14 and 18 may fail to be considered statutory rape ; however they are always illegal , unless the adult is married to the minor and the minor is 14 or older .
Under California law , sexual relations with a minor under the age of 18 are illegal unless the adult is married to the minor , and sexual relations with a minor under 14 are automatically statutory rape .
Roman Polanski sexual abuse case