Forged of Ice and Iron
"From the moment I stood up for you in that cave you became mine. You are going to work for me, live with me and if I have my way you are going to eventually develop Stockholm Syndrome and love me."
Stubbornly ignoring his rapid heartbeat, he tried to parse out if the mortal was joking. It looked like it could go either way honestly.
Loki wakes to a cave, manages to create a friendship with Tony Stark that neither of them talk about, and eventually follows him back home when the whole terrorist kidnapping business is done with.
- Part 1 of Forged of Ice and Iron
Looking into Fury's eye he let his control over his form slip the slightest bit.
"Because," His breath came out in a cold cloud of ice, his eyes changed to red,"If Anthony Stark does not survive this, then the whole of Midgard shall pay the price."
Loki immerses himself in Midgard culture, Tony manages to semi successfully lie to the God of Lies and there's that annoying friendship that seems to grow when neither of them are looking.
- Part 2 of Forged of Ice and Iron