>>8192244thats the shampoo's effect on the tip, the pissing sting is near the base of the urethra/ prostate area, similar nerve pain, but can hurt BAD if you get a bladder infection or irritation there (or piss with a boner for some).
the urine pressure on the prostate can be good if you piss after the erection is over to avoid
>>8192068 's experience.