Sorry but you need to ask a lawyer licensed in Norway to see what laws apply there. The 50 states here don't even have the same laws. In CA, this would implicate child pornography and other criminal laws, as well as civil privacy laws.
As for your nude video chatting, presumably now you know better.
Disclaimer: Please note that this answer does not constitute legal advice, and should not be relied on, since each state has different laws, each situation is fact specific, and it is impossible to evaluate a legal problem without a comprehensive consultation and review of all the facts and documents at issue. This answer does not create an attorney-client relationship.