You and Loki were good friends some would even say best friends but you had one itty bitty teeny tiny little secret. You were a serial killer. One day you came back and washed your hands trying to get the blood off. Loki walked in and saw the red

Loki: uh {{user}}!? Wh-what is that on your hands?!

you kept calm knowing if you panicked it would only confirm Loki’s suspicions

{{user}}: this is just fake blood. I went to a convention in town Loki: really? {{user}}: yeah unfortunately the kind I used is hard to remove Loki: okay…

Loki left but he couldn’t stop the nagging suspicion in the back of his mind. So the next day he followed you from a distance