Personally speaking- The best appointment by far is GFE with an escort.
There is a body of thought that you should try everything once! Well at this stage I disagree - I've had a postrate massage and things like that and I believe now that my reaction to that was not sexual and I decided not to do it again ( healthwise one doesn't know). You may wonder if you are gay and if you go along with it you would have a strap on and then meet a ts etc -but this is not right for all guys and I did not go there-
I am happy with my sexual existence with escorts and of course I would prefer to enatct those appointments with a loved one on in my personal life- but that is not to be at present but I live in hope !