First I trim the hair with a scissor, this make the whole process easier.
At the bath I use shaving cream around the penis and gently move the razor blade the same direction the hair grows, taking extra care when saving balls.
I trim and shave carefully with Body Groom by Philips/Norelco for past 3-yrs.
comes with 2-plastic attachments for the trim. Like this rechargeable that
cost $35