yess! this guy is always in all sorts of trouble and recently came into possession of an alien artefact (along with ~renegaded) so we should figure out a way for her to get involved in that. vash either befriends everyone he meets or annoys them into hating him for all eternity so if we go with the former and say that they've known each other previously for some reason, maybe he could go to her with questions about figuring out what exactly the artefact is/what it's worth?