I'm certainly no expert but have relatively recently found a lot of pleasure in prostate stimulation. I'll occasionally lube-up a finger and put slide it into my rectum. I can definitely feel my prostate and when I touch it, the sensation is very pleasurable. I just find it difficult to keep it up (hand position, arm length, etc.). What I am able to do regularly and have been doing frequently is externally rubbing my taint/prostate area. I was stroking my cock the other day while rubbing my taint. I never really got hard but began to leak a lot of cum. It was very pleasurable. Then, I did some serious jacking, got hard, and came more fully - all within about 5 minutes. I look forward to this lock-down ending so I can go buy an aneros. Been wanting to try one for years.