Dear Timebandit,
As the watchtower says, "cleanliness is next to Godliness" it is good to keep clean, however when touching yourself in certain areas causes arousel you should either cut off that part of you body or refrain from cleaning it. As Christians we realize that it is not important to become aroused sexually in anyway because it takes away from the sanctity of the clean God Jehovah. So it is sometimes better to stop the practice all together. However, if you choose to stop taking showers don't come into any New York area Kindom Halls that members of the GB attend.
The Watchtower