A changeling infiltrator has failed a mission and has been punished in a way no changeling has ever been punished before: Having his own emotions fed upon by Queen Chrysalis. Changed by the experience, he plots a way to change his life and atone for his past mistakes.
I thought this up recently as I was working on my other story Fitting In Is Hard To Do and decided to work on this whenever I had writer's block working on that.
Edit - I removed Thorax as a character as he's only mentioned in the story. He will be in the sequel when I get around to writing it.