Adult material randomly appearing on Facebook account?

[Darkpaw]

For some reason adult material keeps being appeared on my news feed. Not in a spam way or anything, my settings are set up that only my friends can post on my wall and I can only only see the posts and status of my friends.

For some reason though every once and a while I see a post of a supposedly famous adult entertainer, adult actress, or an adult model posted in my news feed. I don't know any of these people or have them as a friend. I assume Facebook has it that way for advertisement or something because when I went to their page I couldn't block them, it wa set up like a celebrity page; not that blocking them would help since its never the same person. It very rarely happens and never seems to be the same people but I'd like to get rid of the issue if possible.

Is there a way to filter out adult material or put my setting were adult entertainers will not show up on my news feed?