Day 2 - FIC: Mephisopheles (Avengers)

Mephistopheles by alexcat

Chapters: 1
Fandom: Marvel Cinematic Universe
Rating: General
Warnings: None
Relationships: Steve Rogers/Natasha Romanov
Characters: Steve Rogers, Natasha Romanov, Mephistopheles
Additional Tags: Fluff
Summary: Steve isn't too sure about the new friend that Natasha had brought home with her.
Notes: Prompt: cat