I know it's not Halloween anymore, but I thought this was a cute idea
~~~

Steve Rogers-
The two of you decided to go as Buttercup and Wesley from The Princess Bride

Tony Stark-
After a long debate, you finally convinced him to dress up. You went as Morticia, and he as Gomez.

Bruce Banner-
Peter Pan is your favorite classic Disney film, so you dressed up as Tinkerbell and Peter Pan

Clint Barton-
Clint insisted on going as Robin Hood, so you dressed up in a Maid Marian costume.

Thor Odinson-
You had to explain what Halloween was to Thor, but once he understood, he was more than happy to dress up with you. He's already got the muscle, so you suggested Mr. and Mrs. Incredible.

Loki Laufeyson-
Loki hated the idea of dressing up for a silly mortal holiday, but once he saw how much it meant to you, he agreed. He made the perfect Anakin Skywalker, and you were a gorgeous Padmé Amidala.

Bucky Barnes-
You didn't really want to dress up, but Bucky was so excited for Halloween that you agreed to. The two of you dressed as dead Bonnie and Clyde.

Pietro Maximoff-
Pietro was just as excited about Halloween as you, and the two of you quickly agreed on a matching costume: The Joker and Harley Quinn.

Peter Parker-
You and Peter both enjoy the classic The Nightmare Before Christmas so your first choice as a couples costume was Jack and Sally.

Peter Quill-
They don't really have Halloween in space, but you really missed the tradition so you convinced him to dress up with you. The two of you went as Baby and Johnny from Dirty Dancing. You also had to explain to the rest of the team what Halloween was.

Sam Wilson-
You had forced Sam to sit through The Princess and the Frog with you so many times, it was only fitting that the two of you dressed up as Tiana and Naveen.