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1. Between The Lines: The Christmas Party by itsmebethy

   Fandoms: Slow Horses (TV), Slough House - Mick Herron  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Complete Work

   01 Dec 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • River Cartwright/Original Female Character(s)
   • River Cartwright/Annie Stuart
   • River Cartwright
   • Annie Stuart
   • Christmas Party
   • festive fluff
   • Holiday flirting
   • MI5 - Freeform
   • Tipsy Annie
   • Developing Relationship
   • Naughty List

   Summary

   River gets into Christmas…

   “All I want for Christmas is you,” she teased, batting her lashes.
   He was powerless. When she kissed him, light and tipsy, he thought she knew it.

   Between The Lines: The in-between moments: domestic chaos, accidental tenderness, and the lives River and Annie fall into after Hidden in Plain Sight.
   Each one-shot stands alone — messy, warm, and just a bit MI5. 💛

   Series

   • Part 1 of Between The Lines

   Language:

   English

   Words:

   1,086

   Chapters:

   1/1

   Kudos:

   15

   Bookmarks:

   1

   Hits:

   296