ok, for women - yes, but for men, the nutsack has to be firm so it has to be cold to begin with, once underway, you may add warm water to help to shave in 'less wrinkled' surfaces thus you can shave it smooth, but the key is you really want to strike it in between and keep the nut sack as firm as possible. Its not easy. but yes in the best barbers for men's shaving they use Hot wet towel not only to moisten to add shaving cream but to stretch out the skin so you get maximum blade coverage for best shaving possible. but nutsack needs a different approach.