Actually Martin, I think I read on CNN that it's closer to 30% of teens have "sexted."  I only wish we had camera phones 10 years ago ... when I knew a few girls that probably would have done that. 
That's funny . . . . .  Until you are the father of a 13 year old daughter that has the measurements of Marilyn Monroe only a little thinner at the waist and has boys of 18 thinking she is about 16-18 on looks alone.  Thank God she is severely body modest.
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I do the things that I must, and really regret, are unfortunately necessary.
RIP OBG