Not Sure How To

Not sure if you would classify this as a fetish or maybe an obsession but four years ago, I had prostate surgery and when I met my urologist for the very first time, I was instantly attracted to him. Dr S is not only very a professional and caring physician but also extremely handsome and sexy. Because I have minimal prostate cancer, every six months, I have an MRI and bloodwork then see him in his office for results. I always look forward to seeing him. He appears to be in his late thirties with a nice muscular build and beautiful light dark skin. This past June, I had my regular check up and for the first time, he said he needed to do a rectal exam on me which of course had my mind thinking of the possibilities. I slipped off my things, put on a hospital gown, laid face down on the examination table and waited. He was just about to start when he was interrupted by staff. While he was talking with her, I looked over and by the way he was standing, I could easily tell that through his scrubs, he is quite well hung. A few minutes later he began and man, was I ready. Two, slick fingers entered me and all I could think of was just how much I needed to feel his cock inside me. My head was turned and he was standing only inches away and I so desperately wanted to reach over, pull his cock out and suck him. Thought of how badly I wanted his cock inside me instead of just his fingers but couldn't muster up enough courage to tell him. Any suggestions on how to broach this delicate subject would be greatly appreciated.