Is PWP inherently bad?

[Wisemon]

A story that leads up to the sex scene with characterization and plot is more satisfying than one without, if only because those authors also tend to be better lemon scene writers. Ideally, characterization is maintained through the sex scene. Herr Mullen's multi-titled Jyou and Mimi single is a great example of this. Porn without plot does have its place, but then you'd better be one hell of a sex scene writer. If you want to learn from the best, I suggest going to regular (non-hentai) adult literature websites.