If you open the full Wikipedian article it is a legal gray area in the United States of America where the developer and I live. Even people convicted with the obscenity law based on stuff you're saying are charged on a case-by-case basis.
Here's a quote from Wikipedia and a link to the source:
"In the United States, pornography is generally protected as a form of personal expression, and thus governed by the First Amendment to the Constitution."
Wikipedia: Legal status of fictional pornography depicting minors