I will answer you as if you are being serious. Put a little vaseline on it, and I do mean JUST A LITTLE. A little vaseline goes a long ways, but vaseline is the best moistizer and skin protecter there is. Next time you masterbate, use the vaseline instead of the soap, (or buy a good lubricant). The soap could dry out your skin and make your skin burn. HOWERE, NEVER USE VASELINE WITH A CONDOM...THE OILS IN THE VASELINE CAN DAMAGE A CONDOM.
...and some soaps can have abrasives in them that don't help a great deal in the long run..like masturbating with sandpaper, though it may feel pretty good until you step in front of the shower.
Jim