Every moment of The Idea of You feels like the first day of summer vacation: dreamy, sun-soaked, and unbelievably horny, if you have an…adult taste in getaways. In watching the steamy new romance, we are living vicariously through someone who has achieved every teenage girl’s fantasy—sleeping with the world’s biggest, hottest celeb. In this case, the A-lister is Harry Styles at the peak of his One Direction fame—or at least, the lead love interest is loosely inspired by him.