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1. With Hearts Like Ice and Love Like Fire by AMuseForADay

   Fandoms: The 100 (TV)  

   • Explicit
   • Graphic Depictions Of Violence
   • F/F, Gen, Multi
   • Work in Progress

   22 Dec 2025

   Tags

   • Graphic Depictions Of Violence
   • Costia/Ontari
   • Costia and Ontari
   • Costia/Roan
   • Costia & Lexa (The 100)
   • Costia (The 100)
   • Roan (The 100)
   • Ontari (The 100)
   • Octavia Blake
   • Lexa (The 100)
   • Clarke Griffin
   • Mention and Flashbacks of Nia
   • Original Female Character(s)
   • Raven Reyes
   • Bellamy Blake
   • Alpha/Beta/Omega Dynamics
   • Alpha/Omega
   • Alternate Universe
   • Smut
   • Knotting
   • Mating Cycles/In Heat
   • Porn With Plot
   • Slow Burn
   • Femslash
   • Violence
   • Maybe a little dubcon
   • Ontari actually has a heart
   • Royalty
   • Azgeda
   • The 100 Femslash
   • Alternate Universe - Canon Divergence
   • Girl Penis
   • G!P
   • Alpha Lexa
   • Jealous Lexa
   • Omegaverse
   • Fingering
   • heat - Freeform
   • Oral
   • lots of sin
   • I need to be stopped

   Summary

   Kidnapped by Nia to learn what she could of Lexa's secrets, Costia was put through torture and hell before slowly she became part of the only family she's ever really known. She has never held power over her own heart, choices, or her destiny. Now that Nia's dead and her brother Roan is King, with ruthless Ontari scheming for her as a mate, she will find that though she is an Omega, she holds more power than she ever dared to imagine.

   But how will she wield it?

   Language:

   English

   Words:

   24,005

   Chapters:

   9/?

   Comments:

   81

   Kudos:

   168

   Bookmarks:

   18

   Hits:

   6,069