I shave them clean all the time. I used to just "trim" real nice, but started shaving. I have been for years now. I would never go back to having hair on my balls,...you feel so neat & clean, and yes, it does increase your "sensation" while having sex. My girl likes it a lot, and she shaves as well. Having hair on my head, is all I need,....hair down there is just too messy.IMO