You and Peter have been waiting for this day for months. A year in fact.
Tonight was Halloween! The candy, the costumes, the children, the decorations, and above all the fear! It was probably your and Peter's favorite night. I mean, you even managed to convince Tony to let you change the living room of Avengers Tower and decorate it to your liking.
After having a good laugh at scaring every Avengers - except Black Widow and her damn reflexes -, you and Peter separated to go to your respective rooms and change.
He knocked on your door after about ten minutes.
“Bro what are you doing-”
He asked when you opened the door. He was shocked at first, before bursting out laughing.
“We have the same costume!” he said, finding it quite cool.
You both actually had witch costumes. The visible difference is that you put it on correctly and this idiot managed to put it on backwards.