Yea, I remember reading about that. They can charge her, just like if you transport a hd through the US mail that has obscenity on it.
It's a postal service thing though. Fed Ex or UPS is a private industry
I bet they would sell like crazy as an up-sell from within my members areas, however, finding a processor is going to be a chalenge as you're not selling virtual, however, it is adult related items.
That's likely going to be the problem.