For example, movies with a G rating are likely geared towards a family with small children while a film with a rating of NC-17 is likely more suitable for an older audience.
NC-17 movies do not allow anyone under the age of 17 in to see them.
Some movies rated NC-17 include: Easier With Practice, The Hottest Bid, The Loves of Lady Chatterly and Peepshow.
When the site started they had a "no censorship" policy, but due to the fact that Twilight is a young adult series that draws teens to their site, they have restricted access to stories that are rated R and NC-17 to adults only.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.