There is no official position of first lady, as PA said in an interview himself. Caroline is 2nd in line to the throne, so obviously she has to take on more responsibilities than Stephanie, but generally I think they both chose the type of jobs they were interested in the most. Stephanie is fairly busy with the Circus Festival and has a number of charity events happening too. She is recently more visible around here than she used to, but that is only natural since she lives in Fontvielle, whereas Caroline lives near Paris. I think both sisters would be happy for their brother if he would find someone to be happy with.