Time travel. Marauders sans Peter, Lily, mb Snape. Golden Trio, mb Draco, Ginny, Luna and Neville... Next gen. T to be extremely safe! Probably K ... but you know how dares are... there could be things
T to be safe, I'm almost certain it's going to stay K I think its pretty self-evident... but Rose and Scorpius decide to tell people they are dating, and hilarity and death threats ensue.