Yeah. I know the experience. It wasn't until I was 55 that I took the plunge and sucked. It was in a threesome with an older guy and woman. From then, I couldn't get enough dick to suck and enough cum to swallow. Wish I had started much earlier in life. I don't get hard or cum myself while sucking. There is something about sucking to completion that is its own reward. Turns me on enormously. I am much older now and don't get out much. Also, most of the guys are looking for younger men. I really wish that I had started sucking about 20 years earlier. Would have avoided a lot of disappointing relationships with women.
As for anal, I was slow reaching it after my first time sucking. Anal has been more difficult than sucking. First off, it's difficult to find a host for anal. With oral, I could go to an adult theater and suck. I am very tight and most guys have difficulty penetrating me. They just cannot get their dicks into me properly. Very frustrating. Only one top was able to consistently do me anally. He didn't let my tightness or my painful groans stop him. He just took me, and his cock was above average in size. I enjoyed it, although he had only one speed - full speed and no finesse. He usually took at least twice whenever we met at his place. I was getting used to it, but he moved away. Too bad because he agreed to invite other bulls to join us and use my butt and mouth as they pleased.
Another top was attractive, mature, and had a large dick. Unlike my other friend, he just could not penetrate me fully. He should have disregarded my groans and pain, and just pushed into me. I wanted it, and I would have returned for more and more until I could take it with ease. But, it was not to be. I ended up sucking him and swallowing his load.