Quote Originally Posted by Moral Wiz View Post
They are related chars. Another player (resumably) chimed in to say that they are siblings. They don't need an "Intro" as much as they need a starting setting; like Small town, Capital city, desert wandering ect.
Even then it isn't such a bad idea to start them off in the middle of something. It'll help the players get comfortable with each other and the setting and whatnot before having to wander around looking for somebody to send them off to kill things.

...unless the group really likes RP, of course.