First of all, you need an extendable hose connected to your shower head to do this method. (If you don't there is a variation of this technique that I will discuss later on in this submission.) Basically, you just lie down in the shower and 'stroke' up and down with the stream of water on your cock. It feels great to spray the water on your balls, and your anus. It feels fucking fantastic! It's convenient too; your cum just washes down the drain. Easy clean up!
Heres the variation, and it's not for some people, but here you go: The majority of people have a water sparyer attached to their kitchen sinks... All you have to do is make sure you will be home alone for a good amount of time, and make sure the neighbors can't see you! Just clean out the sink, set the water temperature, strip down and hop in. I find that it helps to jack off a little bit first-almost to orgasm. That way you're not in the sink for an hour... Have fun, I always do!