/ɪnˈsɛstʃuəs əˈdʌltəri/ – Phrase
Definition: người thông dâm với người họ hàng gần.
A more thorough explanation: “Incestuous adultery” refers to a situation where a person engages in sexual relations with a family member, such as a parent, sibling, or child, while being married to someone else. This act is considered both incestuous, due to the familial relationship involved, and adulterous, due to the violation of the marital commitment. In legal terms, incestuous adultery may be subject to criminal prosecution or civil consequences, depending on the laws of the jurisdiction in which it occurs.
Example: A brother and sister who engage in a sexual relationship would be committing incestuous adultery.