The black oriental is a boy, and the seal point siamese is female. They aren't brother and sister, but have probably been together for a while (they're about 3 years old), with a bit of a turbulent life. Not anything abusive, but they seem to have been moved between a guy and his mother, living with other cats, and not really getting enough attention. The lady their with can't remember their names (apparently they were oriental/asian), so we get to do that ourselves (no, we're not looking for suggestions, sorry).
I can't wait to take them home!