Lorelai
That's just preposterous really. It's more bad parenting on the part of his guardians than it is on you as owner of the establishment. It's expressly noted in your inn guidebook that that sort of entertainment is available in all rooms, and if they didn't want the little pervert whacking off to porn, they should have called down to the desk and had it blocked.
At the very least, they should have realized he's a teenager for fuck's sake, he's going to get his rocks off anyway he can. At least he didn't order a hooker on the internet. He was smart enough to watch porn instead.
Glad to hear you've got a lawyer. If you require any additional help, you know I'm there for you.