I shave the boys every day and I have never nicked them since I switched to a very good 5 blade razor. I find with it that the blades are close enough together that it keeps the looser skin down there from getting into them.
Point is get the right razor before you shave anything and especially before you shave the boys below.
Originally Posted by still-asleepstill-asleep that is exactly what I use for 90+% of all cuts I get. It will dissolve over time (as it heals) and completely seals the cut. I do advise since it seals the cut so well to use alcohol to clean it very well first though.