Usually I only see her once in a few months. So maybe given the time between all my visits, I've "recovered" enough to enjoy the next round. I do get what you mean by the unshaven part though.
To be completely honest I would probably see her only once in a few months. I think the stimulation is too strong to keep going regularly. In general I never really went more than 1 time in 4 months or so, and always had an amazing time with her.