Teen weirdness: love bites

...or is it media weirdness? Buzz this morning that teenagers have started biting each other as a way to show love. They got the idea, apparently, from the Twilight movies/books. Video of this biting is making the rounds on YouTube; there are pages dedicated to it on Facebook; experts are freaking 'cuz biting spreads germs and causes infection, etc.  Myself, I'm wondering how hard journalists are working to find kids to interview about this "trend." Anyone ever hear of this?