Is watching sex video on net is a crime?

Answer: No it is not a crime, it concerns you and you watch what you would like to watch. Also When watching inappropriate be sure not to watch its in the open/Public.

Answer: Pornography is not a crime in most countries. However, please note these exceptions: (1) In some countries it IS considered a crime. (2) Certain types of pornography ARE a crime in most countries - notably pornography involving children. (3) It is also illegal, in most countries, to expose minors to pornography. So, if you are an adult watching pornography, make sure you don't watch pornography while children are present.