Every Expensive Thing in Fifty Shades of Grey, Explained

As much has been made about the kinky sex in Fifty Shades of Grey, BDSM isn't the only major fetish of the bestselling book series. The other sin is that universal turn-on: money, money, money.

Anastasia Steele’s tortured romance with billionaire Christian Grey is about love, and it’s about all that bondage sex, of course. But we all know that bling can be an aphrodisiac, too. (Christian’s worth, according to Forbes, is estimated to be $2.2 billion.)