Set during PoA. Ginny Weasley and Minerva McGonagall have a talk about a certain dark-haired Slytherin and his place in their lives. And no, it's not Snape. ;)
ETA: Okay, a few more. Because I can. And b/c I feel like reccing things that I wouldn't normally rec. And because it's summer and I want to rec summer fics.
Sundress, by Rhoddlet.
Ginny wants Hermione.
My main objection is that it's H/Hr, which is just wrong and weird, b/c Hermione SO does not want Harry, and also the author occasionally has Ginny think of Harry and Hermione as "Potter" and "Granger," but whatever. :) It's ... summer and girlcrushes and yellow sundresses and wanting things you shouldn't be able to have.
A Summer Thing, by Halrloprillalar.
Hermione/Fred/George. NC-17. But the twins are leaving the next day and she wasn't using her virginity for anything anyhow.
Stop running away! It's not that bad!
Hot Day, by Jane.
A summer-after-fourth-year written before OotP came out. Just a little ficlet about a hot summer day at the Burrow. I also recommend the sequel, "Torch."
The Virtue of Decision by Penknife.
Hermione in the summer, thinking about her life. Features an appearance by Draco Malfoy.