Footnote
c A male or a female who is forcibly raped would not be guilty of porneia.
The New International Dictionary of New Testament Theology states, for example, that porneia means “unchastity, harlotry, prostitution, fornication.” It also says: “The word-group [involving porneia] can describe various extra-marital sexual modes of behaviour insofar as they deviate from accepted social and religious norms (e.g. homosexuality, promiscuity, paedophilia [sexual abuse of children], and especially prostitution).” Thus, porneia would include adultery (Greek, moikheia), and can cover a broader range of other immoral practices outside marriage, such as oral or anal sex and bestiality.
The 1979 edition of the highly regarded Greek-English Lexicon of the New Testament and Other Early Christian Literature (by Bauer, Arndt and Gingrich) defines porneia as “prostitution, unchastity, fornication, of every kind of unlawful sexual intercourse.”