sirpreis
I never let food touch my lips (as much as possible). Have been doing that for almost 8 months. Sucks, but I've gotten pretty good at it and somewhat used to it. Can't eat stuff like spaghetti that way, but that's ok...
And even when getting my lips wet (especially now that I wash them twice a day with salt water), the build up skin doesn't turn white. Most of my EC area on the bottom lip is just hard callused skin, so it doesn't soak through.
And of course it's totally different to kiss with callused skin on my lips, for my wife as well :)