Before I was married, in my early twenties, I had a torrid sexual relationship with a 42-year-old woman. I told her straight out that the relationship would last no more than a year. She was cool with that, and treated me as her boy-toy. I was pretty broke at the time, and she was a reasonably wealthy single professional. I so much enjoyed being used.
By the way, there are a lot of on-line personal ad services that make the searching a whole lot easier than it was "back in the day". Good luck!!