Funny I worked for a place that, before I was there, was a major vendor of search engines for the porn industry despite the owner being a conservative mutual fund manager. (e.g. I had a poster for an ETN I liked on the wall of my office and it got taken down before he visited)
I know things went bad and I had something in my contract that I'd be immediately dismissed if I was found to have pornography on my laptop or any other computer belonging to the company.