Nothing Ventured by shapinglight
One-shot, NC-17, between Hell Bells and Seeing Red on BtVS and post-Couplet on AtS. Spike visits Angel in LA and talks with him about Buffy without naming her. Angel thinks they're talking about Dru and gives him some advices... Terrific idea and masterful execution: sharp dialogues, minimalist descriptions, spiced with lethal irony. A character-study-cum-tearjerker-par-excel
Like Mice in a Cornfield by denny_dc
First chapters The last chapter
R, future!Fic, R. 70 year into the post-apocalyptic future, Spike works in police department and still dreams about Buffy. One night he meets in a bar vampire Buffy who doesn't recognize him, and the next day he discovers that she's his new partner... Spike isn't quite sure whether or not to believe his eyes or his dreams. Denny weaves a complex plot that, surprisingly, leads into canonic universe - and the ending is bleak, sad and brilliant.
Slayer Memories by hello_spikey
PG-13. Post-Damage. Buffy meets Dana the Crazy Slayer and tries to puzzle out why Dana talks about Spike in present tense... Writer alternates Buffy perspective in past-tense and Dana perspective in present-tense and the result is fascinating.
April Come She Will by speakr2customrs
R, starts during I Was Made To Love You, goes AU after that episode. Warren manages to reprogram Aprilbot and to include the Three Laws of Robotics in her behavior. April turns into the most adorable and funny Mary-Sue one can imagine - she helps Buffy, keeping her house impeccably clean and accepts the proposition Spike whispered to her before she had thrown him out of the window... Fast-paced, funny, inventive and absolutely outrageous!
Persons in Mirror by maryperk73701
Post-NFA, NC-17 for language mostly. Spuffy, Xander/Anya, Angel/Cordy, Willow/Oz. The fic starts as a "mirror" story: Sunnydale teenagers Buffy, Spike, Willow, Xander, Angel, Cordelia watch the popular show Joan the Vampire Slayer about Joan, Randy and their friends who fight vampires in a little town Rainypeak. On Halloween Buffy and her friends go to the costume shop and get invitations to a party organized by show's creator Jake Wheaton. As soon as they're there, a spell reverts them into their true selves. They find out that The First and The Beast have brainwashed Scoobies and Fang Gang, but Giles had found a way to disrupt their spell for a brief moment of time, so he used the show about Joan to trigger their memories and the Halloween party to gather them without raising the suspision...