I'm not really a "fan" of many celebrities, there are a few actresses that I find sexy and that I appreciate.
But after years of writing and reading sexy stories on the interwebs I never found found any story focused on a real person that I really liked.
The closest I get to that is through fanfiction (in the rare occurrence I don't find it to be trash) but even there the mc or victim of the mc is the character portrayed by the celebrity, not the person itself.
Big crush on Scarlett Johansson (one of the few exceptions to the not a fan thing) but while I love her in movies and can like stories happening to her characters on occasion, I feel really no interest for something happening to her personally.
Twas my two cents.