This story is a sequel to Sleeping Arrangements
It's one thing to have a bodyguard as beautiful as she is deadly. It's another thing entirely to be hopelessly in love with her.
Part of the Bodyguard!AU Series, based on Earthsong9405's AU where Twilight is the bodyguard to a "Princess/Queen Rarity". Prior knowledge of the AU is not necessary to read the story, but some knowledge helps.