So, without further ado...here's my first rec of the week!
Story: The First and Last Time
Author: Incurable Romantic
Word Count: 2382
Author's Summary: River Song senses her time with the Doctor is growing short on a visit to Paris. Short, sad, angsty one-shot.
Characters/Pairings: Eleven/River, with hints of Doctor/Rose
Warnings: Explicit Sex
Recced because: As a Doctor/Rose shipper who also really likes Eleven/River, this was a perfect mesh. It's a heartbreaking story, told from River Song's (3rd person) POV, and captures the bittersweet nature of her timey-wimey relationship with the Doctor. It also captures just how heart-wrenching it would be to love someone who still loves somebody else.
Be sure to let the author know if you enjoy it! :)