Prism & PenBadboy was an imprint of Masquerade Books, published by Richard Kasak. I’m surprised to find that there doesn’t appear to be much on the web about Masquerade or Badboy. Both trademarks have expired.
https://medium.com/prismnpen/who-needed-a-badboy-book-in-chelsea-in-the-gay-nineties-me-daf2dd32aa17?sk=621ef762213abaf35759c02ab269f7bf
