My roommates have been away on vacation and now they're eagerly waiting for my brother to arrive for Christmas

I've been eagerly awaiting my brother's arrival from overseas for Christmas, but in the meantime, my roommates have been away on vacation. This has left me with a bit of a conundrum. You see, my roommates are quite fond of me and they've made it clear that they'd like to get to know my brother better. They've been dropping hints and making veiled suggestions, but I'm not quite sure what they're getting at. Maybe they want my brother to join our little threesome? Or perhaps they're just trying to stir up some trouble. Either way, I'm not sure how to respond to their advances. In the meantime, I've been keeping myself occupied by watching porn and eating food. But now, with my brother on his way, things are about to get interesting.