For Jessica, she's in a hotel room, so just return and ask Bambi where she is, then go to that room, hear her out then take her to find her descendant (Jessica will tell you when she think you're going the right way, it's fairly easy). Once she's been introduced (there's a bug there were you might go through the whole introduction to her descendant twice) leave and come back the next day, and you can now visit the apartment of the descendant, where Jessica will be staying from now on, she's got some cool stuff to tell you about the setting backstory as well as the usual sex stuff.