I know the "Plague" chapter name is a reference to the Plague of utopias but I still have a sneaking splinter of doubt that it's really a clever ploy and there is going to be an actual horrible plague introduced from all the plane hopping.
For Alexes I like to embed their nicknames into their screennames and I was kind of low on options for Alli, but I'm really pleased with alli_oop. Wait till you find out her bonus, it makes it better :D
Yesterday we came up with 'let's give them all superpowers' and some plot things, and today was 'let's make it twins only, for fun.' Worldbuilding is great :3