Sexting is a problem, a big problem. The prevalence of technology and the ease in which images can be transmitted means that an inappropriate image that was destined for someone "special" can quickly end up going viral.
This advertisement from Think You Know Australia highlights the dangers of sexting. If nothing else, as the law currently stands children with child porn can be, conceivably, convicted of a serious child porn crime and be placed on a sexual offenders register.
I would encourage all to watch and learn.