im a regular shaver of my back, crack n sack. r u really hairy? if u r u might want to trim ur hairs before u shave. then use a razor that ur comfortable with, i use the Gillette fusion n soap in the shower. lather up with the soap n shave, start on the bigger areas first like ur cheeks n the base of ur cock the move slowly n carefully to ur scrotum n ur ass whole crack. on ur first go u need to be careful, get to know ur body n ur razor. once u get used to it u will get faster n more confident with shaving.
to get a smooth close shave, shave against the grain, this will minimize itch n irritation coz the shave is closer. a couple of passes with the razor should do the job too. u should put up a before n after pic. if u want we can chat n cam bout it on skype.