lavinia swire: brunch time hero

severalstories asked for a Mary/Lavinia fake dating modern AU. And when someone asks for a Mary/Lavinia fake dating modern AU, you don't just say no to that!

( Mary and Lavinia are out to brunch together, sans Matthew. Everyone Mary has ever met seems convinced that she and Lavinia are going to murder each other – or rather, that Mary’s going to chainsaw Lavinia into pieces while Lavinia kindly and graciously lets it happen – and if there’s one thing Mary Crawley hates, it’s doing what’s expected of her. )