Aryanna fled her country to escape being assassinated by someone close to her. She was disguised to blend in, but it didn't last long. Remington is there to protect her. When she catches him naked, she doesn't know if she's supposed to enjoy it so much.
Remington wonders why a real princess acts like his valet and dresses in disguise. He suspects something is off that first day. Now they have to deal with the assassin that got close to her. He takes measures to protect her at every cost.
He gets in too deep. They both know Remington is never letting her go. He figures she'll just deal with it, but he'll have to save her again or lose her forever.