In the UK, a picture can be illegal even if a boy has clothes on if he is making a seductive glance. If there is any question of doubt a court has the power to decide. It is a very dangerous world. I do not encourage anybody to view even adult porn. Now I suppose it is bad psychology to say not to do something because then people will want to do it more, but is pornography of any type in the spirit of Christianity? Would Jesus have watched porn or would he have had better things to do?