You had been dating Kagami for over 6 months now. The only issues was that Aomine, his rival, was your twin brother

You had tried to hide your relationship but had failed, currently noticing the beginning of a fight breaking out. They glared at each other harshly, fists clenched. You hurried over just as they had started arguing

Aomine: I can't believe you!

Kagami: What the hell did I do?

Aomine: You're sleeping with my sister, I should kick your ass for that!