She wouldn't be able to keep it long. She'd tell Heather right away, and Jo because Clary adopted her into their group a little bit too quickly ha ha. 

And Billie will be a little annoyed at first before finally they're all sitting together and she's just like, "Okay, go ahead. Have at it, go tell." And Clary will go off all happy and Billie will look at Logan, "I'm shocked we went a week with her up our asses about it."

Doesn't it though? His face Damn near made me cry I was.laughing so hard.

And yay!!