You will be slightly less clean than you otherwise would have been. If the non-bathing situation persists, you will begin to smell like a peasant from the middle-ages. If it persists long enough, your friends may start holding their noses when in your presence.
On the other hand, if this doesn't bother you, feel free to go without bathing for as long as you like. You will be unlikely to suffer any ill effects other than the stink, and your enemies will flee like frightened rabbits.
If you do not take a shower you will stink because enough dirt and bacteria will accumulate on your body. It is important to take a shower so that you can be clean and get refreshed. Here is a link you can check out for showering tips http://www.wikihow.com/Enjoy-a-Shower.