Anyone assertive in South Yorks ?

I am a 53 year old happily married male. I seek an assertive yet friendly older male to continue my education. I need mild punishment and humiliation and hope to build on that with fairly regular meetings. I have very interesting reasons for this, which I will be happy to discuss further of course. Most of my experiences were 25 years ago, but recent attempts to find something new haven't been successful. . Very genuine. Must be able to accommodate evenings. Thank you.