Is it religiously permissible to beat, insult, and humiliate one's wife during intercourse to satisfy her desire, knowing that she suffers from depression and wishes for that?

First: One of the greatest objectives of marriage is to preserve the chastity of both the man and the woman. Speaking between spouses during intercourse is permissible if it helps them fulfill their desire and achieve complete lawful pleasure, as it fosters intimacy and affection and arouses both parties. The preliminaries of intercourse, such as kissing and talking, constitute the permissible "rafath" (intimate talk) between spouses, which refers to the act of intercourse and its preliminaries.

Second: There is no harm in spouses mentioning words that arouse their desire, even using common terms for private parts, provided that the conversation does not devolve into insults, slander, or obscenity. It is not befitting for a Muslim to turn the marital bed into something resembling houses of prostitution. There is a concern that if spouses become accustomed to such words, their relationship might become cold without them, or that these words might become a habit outside the time of intercourse.

As for speaking about these matters with such frankness between a suitor and his fiancée, it is a reprehensible boldness and a transgression of God's limits, indicating leniency in their relationship. It is obligatory for them to repent and wait until God unites them through lawful marriage.