I haven't read the Harry Potter books, but I have seen the movies.
Emma Watson, the jailbait actress who plays Hermione Granger (check her out in a sexy pink topless dress on the link) has gotton me good and hot.

Lots of times! So I have taken on the task of doing a Hermione rape story. It won't be as close to the Rowling characters as real "fanfic" stuff, but I do have her as a teenaged bride in a white silk wedding gown, suspended upside down, with a foot-and-a-half long cock pushed all the way up (down?) her throat, while the evil wizard Voldemort rapes the hell out of her mouth. (And it will get worse, lots worse, for the little sweetheart!) It's getting close to conclusion, and I'll post it here and also at RapeClub.net.

If you google around, you can find erotic stories around about the characters you like. For example, I googled "Hermione rape fuck virgin skirt" on the top line of google, "harry potter" on the middle line, then on the bottom line put in "fanfic fanfiction story stories." There was quite a lot, considering the fairly limiting words "rape" and "fuck."

Here's one:Hermione fuck story

Good luck, and good hunting!