squid830: I didn't even know you could get her to do anything prior to resolving the issue between the sisters - I suspect you need plenty of seduction skills at that point?
I've managed it after resolving things in Jeanette's favour, but I usually prefer to resolve the issue abicably (i.e. satisfying both sisters).
If you get down with Jeanette, does it lock you in to helping her or can you still resolve the issues with her sister differently even after having had fun with Jeanette?
heartburnron: You mean there is a way of keeping both sisters 'alive'?
Yes, but it's probably one of the more difficult things to achieve, since it doesn't just come down to that final conversation with the both of them - it's also dependent on how you talked to each of them separately before that.
I somehow managed it on my first game due to how my character happened to approach situations. I didn't realise how involved it was until I checked out a walkthrough afterwards.
Without the plus patch, this means you can't get any action from Jeanette though. With the plus patch, you can still get action from her before the final showdown between the sisters - but I'm not sure if this factors in to whether you can keep both alive or not later.