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1. My Cosmos Is Yours by TechnicallyWrite

   Fandoms: Doctor Who & Related Fandoms, Doctor Who (Big Finish Audio), UNIT: the New Series (Big Finish Audio)  

   • Mature
   • No Archive Warnings Apply
   • F/F
   • Work in Progress

   12 Oct 2025

   Tags

   • No Archive Warnings Apply
   • Kate Lethbridge-Stewart/Petronella Osgood
   • Kate Lethbridge-Stewart
   • Petronella Osgood
   • Gordon Lethbridge-Stewart
   • Josh Carter (Doctor Who)
   • Vikram Shindi
   • Sarah Jane Smith
   • Malcolm Tucker
   • Sam Bishop
   • Jo Grant
   • Friends to Lovers
   • Karaoke
   • No Lesbians Die
   • Slow Burn
   • Neurodiversity
   • Angst
   • Fluff
   • Whump
   • Post-Traumatic Stress Disorder - PTSD
   • Osgate - Freeform

   Summary

   It all starts innocently enough, with a house call to troubleshoot some data analyses on a Saturday. Before she knows it, Osgood is swept up in the Stewart family karaoke nights and gets to see a rather unexpected side of Kate. Will she be able to control her hopeless crush on her devilishly attractive, impossibly straight boss? Probably not. Will there be Cybermen? You betcha. Silurians too, if the weather holds.

   Language:

   English

   Words:

   556,134

   Chapters:

   60/?

   Comments:

   2,061

   Kudos:

   490

   Bookmarks:

   62

   Hits:

   24,205