I've always masturbated dry, and when I masturbate, I never touch the head of the penis.
I only recently found out that the head is the most sensitve area, so I got some shampoo during a shower, and started to rub it.
The sensation was not pleasurable at all.
When I rubbed it, my whole body just got into a fetal position. It did not hurt, just the sensation was super strong, and it felt kinda bad.
After a few days of trying, I found out that the head of my penis is sensitive only when it is wet. I am worried I will not be able to have sex because of this.
Is there an explanation for this?