I believe this is much more common than any of us realize. It is "cool" for a young guy to have sex with an older "hot" woman. Just watch the American Pie movies. That is why we haven't heard of it so much til now. While with boys, it is a so called "right of passage", it is considered taboo for an underage girl to have sex with an older man. Kudos to those parents who are bringing this to the forefront of the media. I believe it shouldn't have taken so long. JMO
[Just for the record, I am totally against underage kids having sex with anyone. Just wanted to make the point that it is happening everywhere, everyday.]