PLEASE don't feel any negative impressions or bad vibes about Couples or the repeating guests, because a few people get bent out of shape at the thought of your sisters coming to your wedding. Couples fully understands, as do the more reasonable guests, that when you offer wedding packages, there will need to be some flexibility with the couples-only policy. It is certainly up to the resorts, NOT the other guests, who your bridesmaids or groomsmen can be and whether they can be there. While the MB can be a very informative outlet for questions, you never know what you're going to get in regards to replies. We've been there during four weddings, some of which had single guests sharing rooms, and it was not a problem at all. Please enjoy your planning and don't worry about your sisters. Open minded folks that are feeling the true Jamaican vibe would be happy to include them in a beach volleyball game, ping pong, bocce, snorkeling, waterskiing, or whatever else they want to do. And, I guarantee that the beach is not keeping track of who anybody is or who they are with! NO WORRIES!