I'm in my 30s and have been freeballing for a number of years, my sack tends to hang down quite low, so when I first started, it tended to drag along the middle seam in my jeans/etc whilst I walked, so the sack got red and inflamed at times. I responded by giving it a good massage, soak in warm water, and some cream every couple of days of so.
A few weeks later, it stopped giving me any problems and got quite tough, making it far easier to shave without cutting the skin with the razor.
GF mentioned it was much better "licking material" (and for some reason, she likes to have the entire sack in her mouth regularly, as in, daily if possible)
However, it now seems to be turning to a leather like skin. Just wondering if it's due to age, roughage, or the attempted swallowing by the other half.
Oh, and the sack is now quite tight as well - the kind of feeling I usually got after I JO'd now seems semi-permanent.