Louis Tomlinson co-owns the Malison Grand Hotel with lifelong best friend, Zayn Malik. It wasn't until Prince Harry of Sweden occupied the Malison for an entire month that Louis wanted to take extra steps to ensure the luxury hotel was fit for royalty, literally.
After getting to know the prince over the course of a few weeks, Louis begins to fall in love with the man Harry is, the man who is nothing like the character who is introduced to the rest of the world, and he thinks Harry is falling for him too.
But he's wrong, with Harry dismissing his advances, then suddenly ignoring Louis for the rest of his stay. Louis can tell that Harry is holding something back, and when the truth comes out and everything starts to come into its own, Harry's reign will fall harder than his love for Louis.
Falling for his best friend was possibly the worst thing that could ever happen to Louis. Especially when they made a promise not to do so, but Louis couldn't seem to keep it from happening. Ending up with a broken heart when Harry suddenly turns up to be in a relationship overnight.
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Or AU where Louis and Harry used to be more than friends, but everything had to change the day Harry introduces Louis to his new girlfriend.