How Do I Handle This?

Found out my HS son got on my PC and found all the porn pics and videos of me and my wife. Like, about 6 gigs worth going back years, and absolutely everything you can imagine to full completion. I checked his laptop while he was gone and he copied everything, and he'd even snuck some spy pic nudes of her that I knew nothing about.

I remember being his age and doing some of the same stuff, and I remember my own perspective about it. I also remember how devastating it would have been if I'd gotten caught.

He's already watched them MULTIPLE times, and it's only a fantasy, so the damage is done, but do I let him keep enjoying his mom and have that dirty secret, or do I blow it all up?

No, I'm not interested in "getting her drunk and letting him have her", so don't even bother with that fantasy BS. It's just an awkward situation that's a catch-22, and I don't really know what to do.

She would be mortified and devastated, so "ignorance is bliss" on that front, and he'll outgrow it eventually, but he's probably going to keep spying on her in the meantime.

So, what do I do?
And yes, I admit that I'm a little aroused by the perversion of it, but I want to do the right thing.