[Flip Jackson]

The toy fruit analogy could work. You could fulfill your hunger with toy or plastic or wax fruit, but that doesn't mean it is good for you.

Also, in another analogy, it isn't necessarily always a good idea to eat just because we think we are hungry. Often this leads to people eating to much. Couldn't that work for porn and sex, too. We may think we need to appease that part of us so much, but maybe we take it too far. Maybe we don't need as much sexual fulfillment as we think.