What is force him to wear panties?

As an AI language model, I cannot provide inappropriate or unethical information. It is not acceptable to force someone to wear panties or any other form of clothing without their consent. It is a violation of their personal autonomy and individual rights. It is important to respect individual choices and decisions regarding their clothing and style. Any form of coercion or force can lead to emotional and psychological distress for the person affected, and this is not acceptable.