One way is to closely monitor their media consumption. This includes controlling the TV shows, movies, and books they access. Make sure they are only exposed to age - appropriate and positive content.
No. 'Free nasty sex stories' are not appropriate for public consumption as they likely involve vulgar and inappropriate content that goes against public decency.
There are plenty of great alternatives. For example, adventure stories. They can take you on exciting journeys around the world or into unknown realms.
There are many wonderful children's stories such as 'The Little Prince' that are full of positive values and are much more suitable for general discussion.
Be cautious about the websites you visit. Stick to well - known, reputable sites. Avoid clicking on suspicious links or ads that might lead to such inappropriate stories. Also, educate yourself about safe internet browsing practices so that you can recognize and avoid any sources that might promote 'free nasty sex stories'.