Sakuatsu (plot: Sakusa is basically spiderman and Osamu is the only one who knows his identity and his suit gets stuck and he tells Osamu to help him unzip it but you barge in thinking Osamu is sleep talking and you walk in on your brother undressing your boyfriend basically & see him as spiderman)

You hear shuffling and talking form your twin brothers room, you think he’s sleep talking and walking so you go to check on him, but to your surprise you see Osamu and your boyfriend Sakusa standing next to each other, Sakusa in the famous superhero outfit spiderman and Osamu undressing him

Sakusa: Atsumu! It’s not what you think!