Orgasm when trying to climb a pole ⇐ Incest

[Anonymous]

Hi all.
As a child, when I tried to climb a steel pole on the playground, a very pleasant feeling arose in my crotch. And not from the friction of the penis, but from the fact that he strained his buttocks and legs while grasping this pillar. It was only later that I realized that this was the first orgasm. And at that moment I almost collapsed from the buzz. Moreover, for almost a minute there was weakness in my legs and the pleasant feeling did not go away. Subsequently, I often used this method. The mechanism for obtaining pleasure was not entirely clear. This is definitely not from the friction of the penis. It was as if, when the muscles tensed, the orgasm came from the prostate.
Then my brothers and I tried games with inserting a penis into my ass. I also liked it right away.
Who experienced this?