Recently made an "evil" character to play through the dark brotherhood quest line, gonna have to recruit vilja soon as i planned her to play a part in my reformation. A good friend can help people become better and see the errors in there ways. She only ever really had evil friends so she got lost and got her priorities wrong.
Thank you
The sitting option was your idea, and a very good one - it adds a lot to the immersion .
Retrospective, I cannot understand why we never thought of it before. So, really great that you brought up the subject.
Vilja won't have any special quest-pvssyr for the dark brotherhood... and I've started to doubt that she ever will, as I really couldn't come up with anything she would say that wouldn't be against her personality.
Make sure that you have Vilja in "do-not-fight-at-all"-mode when you meet up with your DB-friends. That should ensure that neither she, nor they will start fighting.