
ETA: I'm gonna follow this up a bit.
We don't actually know there is a "new girl", all we know is that Alex said there is a new girl.
We also don't know what ,if any, age limits there are on the girl doing the ceremony.
Media run-down on KateModern:
The series, titled "Lonelygirl15 Presents…KateModern," is the story of a LonelyGirl-esque 19-year-old British college student, her friends, and the mysterious dark forces that permeate their life (the same forces featured prominently in recent LonelyGirl episodes). The creators say the show will be "edgier" than LonelyGirl15 and will appeal to a slightly older demographic than their original web-drama. It will debut on Bebo in early July.
If it's stupid, it's stupid, I guess.