No. Masturbation is a very private topic, and stories related to it are not suitable for public discussion as they involve personal and private sexual behavior.
You can find new stories in libraries. There are a vast number of books covering various genres like adventure, mystery, and romance. For example, the mystery section might have new detective stories that can keep you on the edge of your seat.
No, not in general. As long as they are private and not interfering with one's daily life or relationships, they are a normal part of human sexual expression.
No. Teaching masturbation stories is completely inappropriate and violates moral and ethical norms. It involves private and sexual topics that are not suitable for public discussion or teaching.
The term 'brainwash masturbation fanfic' is quite off - putting. In the world of fanfiction, we expect creativity within the realms of legality, ethics, and good taste. This term seems to suggest a combination of mind - control - like themes (brainwash) and sexual self - stimulation (masturbation), which is not only inappropriate but also goes against the values that most fanfic communities uphold. It's likely not a legitimate or widely - recognized form of fanfic.
It depends on the context. In a private, consensual conversation among adult friends who are comfortable with the topic, it can be appropriate as it's a form of sharing and communication. But in a more public or professional setting, it's usually not appropriate.