I've been masturbating for more than 65 years and still get great pleasure from the act. I do prefer being naked and usually masturbate for several hours before I find it impossible to keep from ejaculating.
At home, I sit naked at my computer, tub of lube at hand as I surf the internet for all kinds of porn. I like to end the day camming with a fellow masturbator.
When I'm away from home there is always a bottle of water-based commercial lube in my car, ready for use in a secluded park, beach, or other cruisy location. It is most stimulating when a voyeur happens to 'catch' me and I am delighted to put on a good show.