This is completely inappropriate. A mother - son relationship is a family bond based on respect, love, and nurturing. Seeing a mother in a'sexy' context violates the basic norms of family ethics and can cause serious psychological harm to both parties.
It's not okay at all. In society, we have clear boundaries for family relationships. A son should view his mother as a parental figure, a source of care and support. The idea of putting her in a'sexy stories' context goes against all moral and ethical values. This kind of situation might indicate some very abnormal psychological or family dynamic problems that need to be addressed immediately.
No, it's highly improper. Family relationships are built on a foundation of decency and respect. The mother - son relationship is one of the most fundamental and pure relationships in a family. When there is such an inappropriate view, it could be due to a variety of factors such as a lack of proper education on family values, or exposure to inappropriate media at a young age. But regardless of the cause, it must be corrected to maintain a healthy family environment.