<p>I'll be a freshman at Penn and I will be living in a double at Hill this fall. My roommate said he wants to join a frat (and I might do the same), but what would happen if he joined a frat and I did not? Would I just get the room to myself for the semester? Could I have another friend move in with me?</p>
<p>Haha, just because you join a frat doesn’t mean you instantaneously move into the frat house. Rushing/pledging doesn’t occur until the spring anyway, so you aren’t an official member of the frat until ~March/April. So if you guys decide to pledge, you wouldn’t move into the house until sophomore year at the earliest.</p>