that works! i'm comfortable playing both halves of the romantic pair if you want to keep things completely gen? our brothers could be the 'main' characters while the others fill in as needed. so potentially my roster would be --
step bro #1, his mom bribed him with a new laptop if he at least gives 'quality time' a chance. wouldn't have come otherwise. haven't decided on his personality yet. depends on what types of characters you want to bring!
horror junkie, she's the kind of person who whips out a ouija board and wants to invoke all kinds of spooky shit while they're isolated in the middle of nowhere.
sensible one, the guy trying to keep the peace between bros (maybe he's been friends with both since they were all in diapers?) and make sure his gf doesn't summon a kandarian demon. fails on both counts.