The most predictable outcome would be for Alicia to just ask Charlotte to sleep in the other room with her; her expression says it all.
Use the "we're both girls and having unrelated boy and girl sleep together on the same bed is bad" card.
Plus there's probably two beds already there in her room.
Admittedly, that would be a cop-out outcome.
It's more interesting if it doesn't happen.
We'll see.