This idea is bad and I should feel bad

[terajk]

 So I'm pondering my favorite dessert, which of course makes me think of the movie Hard Candy--which I've only seen once in the theater, years ago. And now I want fic where Tony Stark and Hayley Stark are related? And she visits Stark Tower now and then, and she helps Tony and Bruce do science, and her fucked-up thinking Does Things with "superhero who fights criminals" and maybe Pepper and Natasha suspect something and OH GOD THIS IS TERRIBLE.

For an idea of just HOW terrible, Hayley Stark is basically Princess Azula if she were not actually a princess. Crossed with an unsympathetic Dexter Morgan or, more likely, Light Yagami.