Hazrat Salman, may Allah have mercy on him, says that if I have privacy with my wife, close the door, hang the curtain, and then mention those matters, then for me, mentioning those matters to people and being seen by people in that state are the same.

It is narrated from Hazrat Abu Saeed Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: The worst person in the sight of Allah on the Day of Resurrection will be the one who fulfills his need with his wife and she fulfills her need with him, then he discloses her secrets.

It is narrated from Hazrat Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: How can it be right that any man among you describes in detail his meeting with his wife to others, or that any woman among you describes in detail her meeting with her husband to others? Upon this, a black woman said: O Messenger of Allah! What is the harm if a man and a woman do this and then tell others? The Prophet (peace be upon him) said: I will explain this to you with an example. Its example is like a male devil meeting a female devil and having intercourse with her in the road while people are watching; he fulfills his need with her while people are watching.

Hazrat Mujahid (may Allah have mercy on him), in the commentary of the verse { وَإِذَا مَرُّوا بِاللَّغْوِ مَرُّوا کِرَامًا } of the Holy Qur'an, states that when they mention marriage, they do so with indirect expressions.