I can’t explain it, and I’m really not sure I want to. It’s been there for so long that I can’t remember a time when it wasn’t, this desire for vulnerability, the risk of being caught, and the exhilarating threat of exposure and humiliation that it brings. Even after all these years, if I think about it, I can still almost feel my first ever orgasm. Of all the places, it happened in the swimming pool at school. The teache...