Fram a Dom's standpoint, I'd like to add some words of encouragement. I insist on a sub's shaving or having a hairless nether region. I understand it is not easy to accomplish or maintain, so I always offered to help if I found hair. I would tie the sub down and use some tweezers to extract the offending hair. I was amazed how this offer was never voluntarily taken up. I usually only had to "help" them once or twice before they managed to keep the area smooth and hairless.

Best of luck with your challenge.