a/n From an anime that I really like (i don't own any of these characters)
In an au where Hinata and Kageyama live together, before games, they both get nervous and put on each other's jerseys. They only realise when they get to the game and their teammates point it out. Kageyama doesn't realise how tight his jersey is and Hinata doesn't realise how loose his jersey is either. When they do find out it usually consists of Kageyama cursing Hinata for being stupid and then Hinata yelling back because Kageyama should’ve realised too. When they did this for the first time the team found out they were dating and lived together but now the team isn't even surprised when both of them turn up in opposite jerseys.