Prostate sensitization and brain mapping

I've read a number of books on brain plasticity and neuroscience recently. I suppose the "prostate zone" in my brain was underdeveloped, since it had never had any stimulation (and previous experience with anal play proved to be completely UNstimulating). It's a bit exciting that I've noticed a change after using my aneros about 4 times in the past two weeks! The day after my first session, I was sitting in a coffee shop and felt a "click" around my prostate. From experience with acupuncture, I think this may have been an energy channel opening up. This click, I believe, also seems to have affected my hidden penis/perineum area.

Cool changes happening in the body and brain! Does anyone know what zones border the prostate in the brain and how it might be tying into/out of it's neighbouring zones?