Squeaky Clean...

This technique is one that provokes discomfort and even a little pain. Please consider yourself warned. Although I have not experienced any, there might be medical implications. Consider yourself warned.

When jerking off, sometimes you need a little more than what you typically do.

First, get nice and hard.
Next, grab your shampoo or conditioner bottle (shampoo is better since it's thinner and flows easier)
Put your thumb and index finger on either side of your head and push towards your body opening up the hole.
Poor some of the shampoo/conditioner into your urethra.
Once on, use your index finger to work it down into your urethra. (hint, open and close the opening to your urethra to work the shampoo/conditioner into it.)
Start stroking your cock.

You will feel the shampoo/conditioner move deeper and start to sting a little bit setting your cock on fire. You will start tingling and cumming in no time. When you actually orgasm, it will be explosive and extremely intense.

Make sure you pee shortly after cumming. It'll help with the after sting.

Enjoy!!!!