This kind of question assumes an unhealthy dynamic. A wife's actions in a relationship are based on love, connection, and her own comfort, not an obligation to perform such acts whenever the husband desires.
It is highly abnormal. Marriage is a union based on mutual understanding, trust, and respect. Any form of request that involves such inappropriate and non - consensual behavior is a sign of a very troubled relationship. In a normal marriage, partners should communicate about positive, healthy, and respectful things, not engage in or demand actions that are clearly against social and moral norms.
First, you must immediately reject the request as it is inappropriate. Then, try to have an open and honest conversation with your wife. Explain to her that this goes against your values and the boundaries of a healthy relationship. It could be that she is influenced by something abnormal or she has some misunderstandings. If the situation persists or gets worse, seeking professional help, like relationship counseling, might be a good option. Because in a normal relationship, both parties should respect each other's dignity and boundaries.
Once, a wife was having a hard time with a project at work. The husband, who was not an expert in her field, still stayed up with her every night. He listened to her talk about her problems, offered emotional support, and sometimes brought her snacks to keep her energy up. Eventually, the wife successfully completed the project, and their relationship became even stronger through this shared experience.
The husband should first take a moment to collect his thoughts. Then, he should have an open and honest conversation with his wife. He could say something like 'I'm shocked that you would even think of such a thing. Our relationship is based on loyalty and respect, and this goes completely against that.' He may also suggest seeking professional help, like couples counseling, to address the underlying issues that might have led to such a request.
No, it is not appropriate. Such sexual topics are private and should be kept within the boundaries of a consensual and private relationship. Discussing them publicly violates social norms of propriety and can make others uncomfortable.