Guys get nervous around scissors and knives... so why is a needle somehow acceptable?
Sharp things near genitalia is never a good idea... male or female. The risk of nerve damage isn't worth the 'aesthetic' appeal.. IMO.
"The weakest soul, knowing its own weakness, and believing this truth that strength can only be developed by effort and practice, will, thus believing, at once begin to exert itself, and, adding effort to effort, patience to patience, and strength to strength, will never cease to develop, and will at last grow divinely strong."
- James Allen