As I just posted in another threat, you can share a meal with whomever you choose. I just came back last week where me and my DS-9 shared dinners at Cali Grill, 50's Prime time and Les Chefs...they even divided up the dinners and gave my son his own plate! (Of course we did not share at buffets as that is not allowed for obvious reasons.) We also share most of our CS meals as well...they give so much food that we ended up with 4 cs left at the end of our trip!