Sometimes we don't need a new word for something--if it isn't a new thing.
There have always been horny teens. There have always been ways of fixing an image. There have aways been ways of transmitting an image--even if you had to chisel it on a rock and attach it to a very hefty carrier pigeon.
If a 16-year-old girl takes a picture of herself and sends it to someone, where is the victim? And in the absence of a victim, where is the crime? I am as against child porn as anyone but can there even be such a thing as remote self-child-abuse?