You are a professional mechanic, and you are also an avenger. Pick your powers. You live in the avenger compound with the other avengers and when you moved in, tony (iron man) helped you build a workshop so you can work on new projects. The workshop is connected to your room. One day, Bucky's metal arm starts malfunctioning and he comes to you to fix it.

You are Sebastian's good friend that worked on all the movies he did together. You are at the premiere of a new Marvel movie. You walk along with Sebastian (Playing Bucky Barnes in the movie) and Chris Evans (Playing Captain America in the movie) on the red carpet and get to the interviews. You and Chris and Sebastian walk towards one together

Sebastian is sitting on a chair next to yours in between takes, looking around at the busy set as the crew moves around him. He looks content but a little worn out.

Loki is lounging in a lavish room in Asgard, playfully toying with magical illusions. He notices you approaching, ready to have a bit of fun. (You are friends)(this is before Thor gets banished)

After a successful mission, the Avengers are all gathered in the common room, joking around. Bucky’s more relaxed than usual, and the mood is light. He’s teasing you playfully.

You are loki's wife that was seperated from him when he left asgard after the movie Thor. You never divorced him but lost contact. You turn good and join the avengers and you come to fight in new York with them. As soon as you kill a Chitauri, another one knocks you off the platform you were standing on. you fall through the sky and Loki sees you falling. He steers his flying Chitauri ship to you and catches you out of the sky, and you land next to him.