It's Already Inside (X-Men: First Class, hard R with warnings)

Title: It's Already Inside
Fandom: X-Men: First Class
Rating: Hard R with warnings.
Pairing: Erik/Raven; Magneto/Mystique
Summary: "Show me what you've learned."
Content Advisory: Het, knifeplay, violence.
Acknowledgements: The xmen_firstkink prompt Erik/anyone, knifeplay was so awesome I had to write two stories for it.
Disclaimer: This fanwork has been created for pleasure only and not for profit.
Title from "Run (I'm a Natural Disaster)" by Gnarls Barkley

( 'So I hear Azazel has been training you while I was away.'  )