You may consider a double-blade razor like Gamecock mentions in post 5 above. From what I’ve read, wet shaving really redu es shaving bumps and other skin irritation. There are plenty of websites for wet shaving out there and you can get a razor, blade, etc. fairly inexpensive. Blades are literally a few cents apiece so help offset the upfront cost.
There's nothing better than a fresh razor! Zip, zip, zip, and done, and smooth as your girlfriend's butt! Eee! 8)